comp.sys.ibm.pc.hardware.* Frequently Asked Questions (FAQ) Part 3/5

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Ralph Valentino

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Mar 22, 1998, 3:00:00 AM3/22/98
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Archive-name: pc-hardware-faq/part3
Last-modified: 1997/11/10
Version: 1.25

S) 4.0 Storage/Retrieval Devices

Q) 4.1 Why do I lose x Meg on my hard drive?
[From: Mike Long <mike...@analog.com>]

The problem here is that there are two different measures of hard
drive storage, both called megabytes. Computer hardware works on the
basis that one megabyte equals 2^20, or 1048576 bytes. Hard drive
manufacturers, on the other hand, use a megabyte that has 1000000
bytes, because it makes the drive looks larger. When buying a hard
drive, you should expect to lose almost 5% of what the manufacturer
claims the drive size to be.

The manufacturers are not totally at fault. The first track of the
drive is used for the partition table and master boot record. The
amount of data lost here depends on your drive parameters; usually
there are between 32 and 64 sectors (512 bytes/sector) on this first
track, so you lose between 16384 and 32768 bytes that way.

Additional space is taken up by two hidden files on your boot drive.
If you are running MS-DOS, these files are IO.SYS and MSDOS.SYS. If
you are running PC-DOS, the names are IBMIO.COM and IBMDOS.COM.

[From: ra...@alum.wpi.edu (Ralph Valentino)]

Many drives these days advertise unformatted capacity. The actual
formatted capacity may be significantly lower than this as space is
taken up marking tracks, sectors, CRC's, etc. Exactly how much lower
depends on the the size of the sectors. For instance, placing 1k
sectors on the disk instead of the usual 512 byte ones may slightly
increase the usable storage space on the disk. Note, however, that
many OS's insist you stick to the 512 byte sectors so this option is
best left alone.

A large number of drives also do auto-mapping of bad sectors; when a
sector goes bad, it will automatically use a spare it kept aside
during the format. This is very handy as the OS never needs to deal
with the problem and some OS's, like DOS, will mark a whole cluster
bad when a single sector goes bad. These spare sectors, as many as
one per track, remain hidden from the OS but still take up space on
your hard drive.

When you get to drives larger than 1.0 gig (SCSI), many host adapter
BIOS's can not deal with this as the BIOS was never designed to handle
more than 1024 cylinders, 64 heads, and 32 sectors per track. (1024 *
64 * 32 * 512bytes/sec = 1.0 gig). Luckily, some OS's (like OS/2)
ignore the BIOS all together and read the actual geometry from the
disk itself. If, however, you're not using such an OS and you notice
that you only have 1.0 gig available, you may want to check with the
manufacturer of your SCSI host adapter to see if a newer BIOS is
available.


Q) 4.2 *Should I get an IDE/floppy/SCSI/parallel port tape drive?
Q) 4.3 I have two floppies. Can I add a floppy based tape drive?

[From: her...@techunix.technion.ac.il (Herbst OMR)]

It depends. On all modern tape drives: yes. Some old tape drives
cannot do this (my old Jumbo). If you have one of these, you will have
to buy either a 4-floppy controller or a dedicated tape controller.

Q) 4.4 How fast is a tape drive? Will a dedicated controller improve this?

[From: her...@techunix.technion.ac.il (Herbst OMR)]

The tape connected through a floppy interface is limited to the floppy
speed. On ATs 500Kbit/S. On old XT 250Kbit/S. With card support for
2.88MB floppy, 1Mbit/S. Many of the newer cards support this transfer
rate.

If the card operate at 500Kbit/S, a dedicated controller card will
speed up the tape by a factor of two. In many cases, those cards do
hardware compression, helping even more.

Q) 4.5 What is QIC80, QIC40?

[From: her...@techunix.technion.ac.il (Herbst OMR)]

QIC stands for Quarter-Inch Cartridge. QIC80 is the standard for 80MB
tapes, QIC40 for 40MB tapes. Both standard allows for extended length
cassettes of 300ft which gives 120MB and 60MB respectively.

Q) 4.6 How come I can't fit as much stuff on my tape drive as they claim?

Most tape drives these days advertise capacity with an expected
compression ratio of 2:1. If you are backing up compressed files
(.Z,.ZIP, .ARC, .JPEG, and so forth) then the drive's own compression
scheme will not be as effective. For these cases, the actual capacity
of the tape will be closer to the "uncompressed" capacity.

A table from her...@techunix.technion.ac.il (Herbst OMR) shows:

stated capacity standard tape length # tracks

80MB QIC40 200ft (normal) 15
120MB QIC40 300ft (extended) 15
160MB (rarely) QIC80 200ft 28
250MB QIC80 300ft 28

For all the recording density is 12500 ftpi; max tape speed is 90 ips.

A second reason is that some tapes assume you will be taking full
advantage of their "streamers". Streaming collects a number of tape
blocks and writes them all at once, preventing the need for backing up
the tape after each block. This positions the blocks closer together
on the tape. If your backup program is slow, some streamers won't be
quite as effective. If you hear the tape drive motor backing up the
tape alot on writes, this could be the case.

Q) 4.7 Are Colorado/Conner/Archive/... tapes compatible with each other?

[From: her...@techunix.technion.ac.il (Herbst OMR)]

If you use the same software: Yes. If you want to use different
software, then turn compression off. Compression done in software on
those drives is not compatible.

Q) 4.8 How does the drive/software know how long the tape is?

[From: her...@techunix.technion.ac.il (Herbst OMR)]

The magnetic tape has holes in it. Inside the cassette enclosure there
is a small mirror. The drive sends an IR beam through it. Near the end
of tape the drive receives it. If the IR receiver is dusted, the drive
may 'reel off' the cassette.

Q) 4.9 What are all those QICs?

[From: her...@techunix.technion.ac.il (Herbst OMR)]

(Thanks to Karl-Peter Huestegge and Jan Christiaan van Winkel)
QIC-11 is not an Industry Standard and there exist some incompatible
versions.

Standard Capacity Tracks Speed Rec-density Flux-Trans Cartridges
----------------------------------------------------------------------------
QIC-11 15/30MB (300ft) 4/9 90ips
20/40MB (450ft) 4/9 90ips 6400ftpi DC300XL
10000ftpi DC300XLP
27/60MB (600ft) 4/9 90ips 10000ftpi DC600A

QIC-24 45MB (450ft/137m) 9 90ips 8000bpi 10000ftpi
55MB (555ft/169m) 9 90ips 8000bpi 10000ftpi
60MB (600ft/183m) 9 90ips 8000bpi 10000ftpi DC600A

QIC-120 125MB (600ft/183m) 15 72ips 10000bpi 12500ftpi DC600A

QIC-150 155MB (600ft/183m) 18 72ips 10000bpi 12500ftpi DC600XTD
DC6150
QIC-150 250MB (1000ft/305m) 18 72ips 10000bpi 12500ftpi

QIC-320 320MB (600ft/183m) 26 72ips 16000bpi 20000ftpi DC6320

QIC-525 525MB (1000ft/305m) 26 72ips 16000bpi 20000ftpi DC6525

* QIC-1000 1000MB (760ft)

* QIC-2GB

* QIC-10GB

Q) 4.10 Which QICs are read/write compatible?

[From: her...@techunix.technion.ac.il (Herbst OMR)]

The left column should be read: "Tape drives designed for the QIC-???
standard *should* be able to read/write the following Tape formats:"

TAPE-DRIVES | Tape - Formats |
designed for: | QIC-11 | QIC-24 | QIC-120 | QIC-150 | QIC-320 | QIC-525 |
----------------|--------|--------|---------|---------|---------|---------|
QIC-11 | R W | | | | | |
QIC-24 | R W | R W | R | | | |
QIC-120 | R - | R - | R W | R | | |
QIC-150 | R - | R - | R W | R W | | |
QIC-320 | R - | R - | R W | R W | R W | ? ? |
QIC-525 | R | R | R W | R W | R W | R W |
---------------------------------------------------------------------------

Q) 4.11 What is the CMOS/jumper setting for my hard drive?
[From: Carsten Grammes (ca...@rz.uni-sb.de)]

Configuration of IDE Harddisks
==============================


last update: 24 March 1994

collected by Carsten Grammes (ca...@rz.uni-sb.de)
and published on comp.sys.ibm.pc.hardware as part of the FAQ.

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
There is explicitly NO WARRANTY that the given settings are correct or
harmless. (I only collect, I do not check for myself!!!). There is
always the possibility that the settings may destroy your hardware!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!


Since I hope however that only well-minded people undergo the effort of
posting their settings the chance of applicability exists. If you should
agree or disagree with some setting, let me know immediately in order
to update the list.

If you possess a HD not mentioned here of which you know BIOS and/or
jumper settings, please mail them to me for the next update of the list!

Only IDE (AT-Bus) Harddisks will be accounted for. If not specified the
Landing Zone should be set equal to the number of cylinders. If not
specified the 'Write Precompensation' should be set 65535. (There are
BIOSes that don't even ask for it). On most IDE disks these values are
dummies, relicts from old MFM times.

The capacity given here is sometimes in Megabytes (1000000 bytes) and
sometimes in MB (1048576 bytes). Don't worry! The only right way to calculate
the capacity is
cyl * heads * sec/tr * 512
which gives the capacity in bytes! Dividing by 1000000 or 1048576 gives
the capacity in Megabytes or MB respectively.

If you get problems when installing 2 HD's with correct BIOS and jumper
settings, try to swap drive 1 and 2, often that helps.

Please don't flame me because of the 'layout' of the list. Since the
available information is so strongly varying I often only pack _YOUR_
mail to me into the list. If someone feels encouraged to improve this,
I would be glad to receive a 'lifted' version. But there should be all
info contained!

Since the list is rather long, I give here a summary of all drives
described therein.

************* ALPS Alps alps
DR311C

************* CDC Cdc cdc
BJ7D5A 94155-48 94335-100 94166-141 94171-300 736 SABRE
BJ7D5A 94295-51 94355-55 94166-182 94171-344 850 SABRE
BJ7D5A 94155-57 94355-100 94186-383 94181-574 1230 SABRE
94155-21 94155-67 94155-135 94186-383H 94208-51
94155-25 94155-77 94205-77 94186-442 94211-91
94155-28 94155-85 94355-150 94216-106 94221-190
94155-36 94155-86 94335-150 94356-200 94351-172
94155-38 94205-51 94156-48 94161-86 368 SABRE
94335-55 94156-67 94166-101 94161-121 500 SABRE

************* CONNER Conner conner
CP342 CP2034 CP2084 CP3044 CP3104 CP3204 CP30084
CP344 CP2044 CP3000 CP2124 CP3111 CP3204F CP30104
CP2024 CP2064 CP3024 CP3184 CP3114 CP30064 CP30084E

CP30174E CP30174E CP3304 CP3544
CP30204 CP30204 CP3364 CP3554
CP30254 CP30254 CP3504 CP30101

************* FUJITSU Fujitsu fujitsu
M2611T M2612ET M2613ET M2614ET M2618T M2622T M2623T M2624T

************* HEWLETT PACKARD Hewlett Packard hewlett packard HP Hp hp
C2233

************* IBM Ibm ibm
WDA-L160 WDA-L42 IBM 85 MB IDE (number not known)

************* JVC Jvc jvc
JD-E2085M

************* KALOK Kalok kalok
KL3100 KL3120

************* MAXTOR Maxtor maxtor
LXT-200A 2585A 7120A
LXT-213A 7040A 7131AT
LXT-340A 7060A 7213A
LXT437A 7080A 7245A
LXT535A

************* MICROPOLIS Micropolis micropolis
2105A 2112A

************* MICROSCIENCE Microscience microscience
7100-00 8040-00 7070-20 7100-00 7100-20 8040

************* MINISCRIBE Miniscribe miniscribe
8225AT 8051AT 8450AT

************* NEC Nec nec
D3735 D3755 D3756 D3741

************* QUANTUM Quantum quantum
40AT LPS52AT ELS42AT
80AT LPS80AT ELS85AT
120AT LPS105AT ELS127AT
170AT LPS120AT ELS170AT
210AT LPS170AT LPS540A
425AT LPS240AT

************* RODIME Rodime rodime
RO3058A RO3088A RO3095A RO3128A RO3135A RO3059A RO3089A
RO3129A RO3139A RO3209A RO3259A

************* SAMSUNG Samsung samsung
SHD-3101A SHD-3061A SHD-3062A

************* SEAGATE Seagate seagate
ST1057a ST1144a ST138a ST274a ST3283a
ST1090a ST1156a ST1400a ST280a ST351ax
ST1102a ST1162a ST1401a ST3051a ST9051a
ST1111a ST1186a ST1480a ST3096a ST9077a
ST1126a ST1201a ST157a ST3120a ST9096a
ST1133a ST1239a ST2274a ST3144a ST9144a
ST3243A ST125a ST2383a ST325ax
ST351AX
ST9235A (maybe others)

************* TEAC Teac teac
SD-3105

************* TOSHIBA Toshiba toshiba
MK1122FC MK2024FC MK2124FC MK2224FC MK234FCH MK234FCF

************* WESTERN DIGITAL Western Digital western digital
WDAC140 WDAC280 WDAC1170 WDAC2120 WDAC2170 WDAC2200 WDAC2250
WDAC2340 WDAC2420 WD93044-A WDAH260 WDAH280 WDAP4200
WD93048A

And here it comes...


************* ALPS Alps alps *************

Manufacturer: ALPS ELECTRIC Co.

BIOS settings:
Model Heads Cylinders Sectors L-Zone Size
DR311C 14 868 17 868 105 MB

(Real geometry of drive:
2108 cyl. 2 heads 49 sectors/track
32k internal cache)

Jumpers:
C/D
-ACT
-DSP
-HSP
MS3
SYNC
DC
MS0
MS1
MS2

Master drive & no slaves present: jumpers on C/D and -ACT.
No other jumpers installed, function unknown.


*************************** C D C ***********************************

I have the feeling that not all of these are IDE...

-------------------------------------------------------------------------------
MODEL ST-506 CAP CYL H RWC WPC ENC RATE ACCESS SPT COMMENTS
-------------------------------------------------------------------------------
BJ7D5A 77731614 5.25FH 23 670 4 375 375 M 5 17
BJ7D5A 77731608 5.25FH 29 670 5 375 375 M 5 17
BJ7D5A 77731613 733 5 - - 5 17
94155-21 WREN-1 5.25FH 21 697 3 698 698 M 5 28 MS 17
94155-25 24 697 4 698 128 M 5 17
94155-28 24 697 4 698 128 M 5 17
94155-36 WREN-1 5.25FH 36 697 5 698 698 M 5 28 MS 17
94155-38 31 733 5 734 128 M 5 17
94155-48 WREN-2 5.25FH 40 925 5 926 926 M 5 28 MS 17
94295-51 WREN-2 5.25FH 43 989 5 990 990 M 5 28 MS 17
94155-57 WREN-2 5.25FH 48 925 6 926 926 M 5 28 MS 17
94155-67 WREN-2 5.25FH 56 925 7 926 926 M 5 28 MS 17
94155-77 WREN-2 64 925 8 926 926 M 5 17
94155-85 WREN-2 5.25FH 71 1024 8 - - M 5 28 MS 17
94155-86 WREN-2 5.25FH 72 925 9 926 926 M 5 28 MS 17
94205-51 5.25HH 43 989 5 990 128 M 5 32 MS 17
94335-55 3.5" 46 - 5 - - M 5 25 MS 17
94335-100 3.5" 83 - 9 - - M 5 25 MS 17
94355-55 SWIFT-2 3.5" 46 - 5 - - M 5 16.5 MS 17
94355-100 3.5" 83 - 9 - - M 5 16.5 MS 17
ST-506 RLL
94155-135 WREN-2 5.25HH 115 960 9 - - R 7.5 28 MS 26
94205-77 WREN-2 5.25HH 63 989 5 - - R 7.5 28 MS 26
94355-150 3.5" 128 - 9 - - R 7.5 16.5 MS 26
94335-150 3.5" 128 - 9 - - R 7.5 25 MS 26
ESDI
94156-48 WREN-2 40 925 5 926 926 N 5 28 MS
94156-67 WREN-2 56 925 7 926 926 N 5
94156-86 WREN-2 72 925 9 926 926 N 5
94166-101 WREN-3 5.25FH 86 969 5 970 970 N 10 16.5 MS
94166-141 WREN-3 5.25FH 121 969 7 970 970 N 10 16.5 MS
94166-182 WREN-3 5.25FH 155 969 9 970 970 N 10 16.5 MS
94186-383 WREN V 5.25FH 383 1412 13 - - R/N 10 8.3 MS
94186-383H WREN V 5.25FH 383 1224 15 - - R/N 10 14.5 MS
94186-442 WREN V 5.25FH 442 1412 15 - - R/N 10 16 MS
94216-106 WREN-3 5.25FH 91 969 - - - N 10 16.5 MS
94356-200 SWIFT 3 3.5" 172 - 9 - - R/N 10 16.5 MS
WREN III 5.25HH 106 969 5 - - R/N 10 18 MS
SCSI
94161-86 WREN-3 5.25FH 86 969 - - - 16.5 MS
94161-121 WREN-3 5.25FH 121 969 - - - 16.5 MS
94171-300 WREN-4 5.25FH 300 1365 9 - - R 16.5 MS
94171-344 WREN V 5.25FH 344 1549 9 - - Z 9-15 17.5 MS
94181-574 WREN V 5.25FH 574 1549 15 - - Z 9-15 16 MS
94208-51
94211-91 WREN-3 5.25FH 91 969 - - - 16.5 MS
94221-190 WREN V 5.25HH 190 1547 5 - - R 10-15 8.3 MS
94351-172 SWIFT 4 3.5" 172 - 9 - - 10 16.5MS
WREN III 5.25HH 106 969 5 - - R/N 10 18 MS
SMD
368 SABRE 8" 368 - 10 - - 1.8 18 MS
500 SABRE 8" 500 - 10 - - 2.4 18 MS
736 SABRE 8" 741 - 15 - - 1.8 16 MS
850 SABRE 8" 851 - 15 - - 2.4 16 MS
1230 SABRE 8" 1236 1635 15 - - 2.4
-------------------------------------------------------------------------------

CAP = CAPACITY IN FORMATTED MEGABYTES
CYL = MAXIMUM NUMBER OF CYLINDER
H = NUMBER OF DATA HEADS
RWC = START REDUCED WRITE CURRENT
WPC = START WRITE PRECOMP
ENC = ENCODING METHOD R=RLL, M=MFM,Z=ZBR
RATE = TRANSFER RATE IN MEGABITS/SEC
ACCESS= AVERAGE ACCESS TIME
SPT = SECTORS/TRACK X 512 bytes
FH = FULL HIGH FORM FACTOR
HH = HALF HIGH FORM FACTOR
R = RLL (run length limited)
N = NRZ (non return to zero)
M = MFM (modified frequency modulation)
SA = STAND ALONE
Z = ZBR

Jumpers are not know (yet).


************************** CONNER Conner conner **************************

Conner drives are low level formatted at the factory. It is only necessary to r
un SETUP, FDISK and DOS FORMAT.

Model Hds Cyls Sec Pcomp L-Zone Type Table LED
CP342 4 805 26 0 805 17 n/a A
CP344 4 805 26 0 805 17 1 A
CP2024 2 653 32 0 653 2 3 n/a
CP2034 2 823 38 0 823 *UT 3 n/a
CP2044 4 552 38 0 552 17 3 n/a
CP2064 4 823 38 0 823 *UT 3 n/a
CP2084 8 548 38 0 548 *UT 3 n/a
CP3000 2 1047 40 0 1047 17 1 A
CP3024 2 636 33 0 636 2 1 A
CP3044 1 1047 40 0 1047 17 1 A
5 980 17 (also reported)
CP2124 8 560 53 0 560 *UT 3 n/a
CP3184 6 832 33 0 832 *UT 1 A
CP3104 8 776 33 0 776 *UT 1 A
CP3111 8 833 33 0 833 *UT 1 A(?)
CP3114 8 832 33 0 832 *UT 1 A
CP3204 16 683 38 0 683 *UT 2 B
CP3204F 16 683 38 0 683 *UT 3 B
CP30064 4 762 39 0 762 *UT 2 B
CP30084 8 526 39 0 526 *UT 2 B
CP30104 8 762 39 0 762 *UT 2 B
CP30084E 4 903 46 0 903 *UT 4 C
CP30174E 8 903 46 0 903 *UT 4 C
CP30204 16 683 38 0 683 *UT 4 C
CP30254 see below
CP3304 16 659 63 0 659 *UT 4 D
CP3364 16 702 63 0 702 *UT 4 C
CP3504 16 987 63 0 987 *UT 4 D
CP3544 16 1024 63 0 1024 *UT 4 C
CP3554 16 1054 63 0 1054 *UT 3 B

Table 1 jumper settings:
Single drive = Jumper ACT and C/D
Master drive = Jumper ACT, C/D and DSP.
Slave drive = No jumpers installed.

Table 2 jumper settings:
Single drive = Jumper E2
Master drive = Jumper E1 & E2
Slave drive = No jumpers installed.

Table 3 jumper settings:
Single Drive = Jumper C/D
Master Drive = Jumper C/D and DSP
Slave Drive = No jumpers installed

Table 4 jumper settings:
Single and Master drive = Jumper C/D
Slave drive = no jumper


ALL CONNER 20 MBYTE DRIVES USE DRIVE TYPE 2. ALL CONNER 40 MBYTE DRIVES USE DRI
VE TYPE 17. *

UT = Universal translate. Select a drive type that is close to, but does not ex
ceed the megabyte capacity of the drive. The drive will translate to the megaby
te capacity you have selected.

LED
A: J-4 B: J-1 C: J-5 D: J-3
Pin 1 = + Pin 3 = + Pin 3 = + Pin 3 = +
Pin 2 = - Pin 4 = - Pin 4 = - Pin 4 = -

Conner drives are low level formatted at the factory. It is only necessary
to run SETUP, FDISK, and DOS FORMAT.

Comment concerning CP3000 jumpers:

According to your list, all Conners should be 2 or 3 jumpers only.
That's why I'm puzzled with the 4-jumper Conner CP-3000.
In addition to the common jumpers present in
Conner - C/D, DSP & ACT, there is an extra one: HSP
By trial and error, HSP seems to follow DSP setting.


> When I installed a Conner CP3204F (203 MB) as master and a WD Caviar 2200
> (203 MB) as slave, both with and without the "CP" jumper, the Caviar had
> seemingly normal behaviour. However, when doing writes to the Caviar, once
> in a while it would overwrite directories etc. Using FASTBACK was almost
> impossible.
>
> The workaround is to install the Caviar as the master, and the Conner
> as the slave.

and:
information: I am slaving a Conner CP3000 40Meg to a Western Digital
Caviar 2200 212 Meg.

the results: I first found out that pin 1 on the CP3000 was LABELED
INCORRECTLY on the PC board....had to flip the IDE cable (which made the
cable install much more cleanly- no flips....shoulda been my first clue
that something was not correct, oh well)

next: I had to DOS-format the CP3000 ALONE on the PC system before it
wanted to work with the WD caviar.... weird
also: the WD Caviar is partitioned: C:\ was the first 100 Meg and D:\ was
the second 100 Meg. After the CMOS was correctly configured and the
drives brought online, the PC AUTOMATICALLY assigned the drives as thus:
C:\ first 100 Meg partition on the WD
D:\ 40 Meg Conner
E:\ second 100 Meg partition on the WD
even FDISK reports the above.


Conner CP 30254

Capacity: 250 MB
Dimensions: 3,5 inch, lowprofile (1 inch)
IDE interface
Cylinders Heads Sectors

Physical specs.: 1985 4 62
Logical specs.: 895 10 55

seek time 12 ms
Rotation speed 4542 rpm

jumpers C/D
1 drive master Y
2 drive master Y
2 drive slave N/Y


----

Subject: Re: Conner CP 30254

I tried several combination and even called Conner for info on
configuring two Conner drives as master (301??, a 300+ M Connder
drive) and slave (30254). The jumpers that worked are:

Pins Jumpers
Master 1-2 Y (factory setting)
3-4 Y (factory setting)

Slave 1-2 N
3-4 Y (factory setting)

So the C/D should mape to Y/N instead of N/Y in the table.
--
Some notes made whilst configuring a pair of Conner IDE drives
for Master/Slave operation from Hyundai Super-LT6 Laptop 386sx-20.

Final Working Configuration

Drive 1: CP3000 40 Mb Type 17
977 cyl 5 hds 17 sec/trk Pre 300 LZ 977

Verified configuration as per Grammes' list. HSP does need to
follow DSP (empirically) - failure to do so produced behaviour
such as LCD screen display scrambling on ROM boot.

Single, Master and Slave configurations all checked out.

Drive 2: CFA170A 170 Mb Unknown type
332 cyl 16 hds 63 sec/trk Pre --- LZ ---

Did not appear on Grammes' list. Successful configuration resulted
close to that shown as Table 3 for Conner drives, as follows:

Single 2 links (not C)/D and (not A)/(?)
Master 1 link (not C)/D
Slave 0 links

One link is listed here as (not A)/(?) due to a hole being drilled
through the (?) part of the silk screening ...

The drives worked together as either slave or master ...
--
Connor CP30101
760 cyl, 8 hds, Precomp -1, Landing 760, Sec/Track 39, ECC 7 Capacity 121.41M


Model CP342 disk (40 Meg IDE drive)
Single Drive: E5, E7 jumpers IN
Master Drive: E6, E7 jumpers IN
Slave Drive: E7 jumper IN

In addition, this is an old disk drive. It was factory configured to
use 3:1 interleave. This can cause timing problems with newer disk
drives that are configured for 1:1 interleave when using the same IDE
controller. The CONNER tech support person suggested I only use the
CONNER drive as a SLAVE with the newer disk as the MASTER.

This configuration (MAXTOR 7345A as MASTER and CONNER CP342 as SLAVE)
has now been in use for over a week and seems to be working fine.


************************ FUJITSU Fujitsu fujitsu ***************************

DETAILS OF FUJITSU DRIVES M261xT (Standard)

M2614ET M2613ET M2612ET M2611T

Heads (physical) 8 6 4 2
Cyl (physical) 1334 1334 1334 1334
Sec/trk 33 33 33 33
Speed (rpm) 3490 3490 3490 3490
Capacity 180MB 135MB 90MB 45MB


+-----------------------------------------------+
| |
+--+ |
PSU | | CNH-2 |
+--+ 1 |
1 | | . LED |
| | CNH-1 9 CNH-3 Connector |
| | 1 6..1 o o |
40-way | | . | | |
IDE | | . |
| | . |
| | 12 |
+--+ |
+-----------------------------------------------+

Pin Function
Position

* 1- 2 Active mode
2- 3 Slave present mode
4- 5 Pin 27=IOCHRDY
CNH-1 JUMPERS * 5- 6 Pin 27=RESERVED
7- 8 2 drive system
* 8- 9 1 drive system
10-11 Pin 29=IRQ14 : Pin 31=RESERVED
* 11-12 Pin 31=IRQ14 : Pin 29=RESERVED


Pin Function
Position

1- 2 SLAVE drive mode
CNH-2 JUMPERS * 4- 5 MASTER drive mode
7- 8 ECC 4 bytes
* 8- 9 ECC 7 bytes


Pin Function
Position

1- 2 Write protect enabled
CNH-3 JUMPERS * 2- 3 Write protect disabled
4- 5 -6 Reserved

Key: * (I guess!) marks factory default setting for jumper


BIOS SETTINGS

BIOS setting for the M2614ET in my system is 667 cylinders, 33 sectors
and 16 heads.

> I was trying to set my IDE drive in the subject above to a slave drive for
> A Conner 170MB drive and contacting the support company gave me this answer (which works). The factory default on SW2 is On Off Off Off Off Off (1-6). This sets the drive to be a single drive. Setting SW2 to Off On On Off Off Off makes it a slave drive. SW1 has been set to On Off Off On (1-4) all along.

MODEL CYLINDERS HEADS SECTORS CAPACITY (Million bytes)

M2622T 1013 10 63 326.75
M2623T 1002 13 63 420.16
M2624T 995 16 63 513.51


There are 6 switches on the switch block on these drives. Only 4 of
them have a use that I am aware of (from my M2624T manual):

Master/Slave Master (*) SW1-5 OFF
Slave SW1-5 ON
ECC bytes 4 bytes (*) SW1-4 OFF
7 bytes SW1-4 ON
Write Protect Disabled (*) SW1-3 OFF
Enabled SW1-3 ON
IO Channel Ready Disabled (*) SW1-1 OFF
Enabled SW1-1 ON

I have no idea about the function of SW1-2 and SW1-6. The values
listed with a (*) are the factory default settings.


M2618T 202MB Cyl/hd/spt 718 12 48


********************* Hewlett Packard ****************************
HEWLETT PACKARD Hewlett Packard hewlett packard HP Hp hp

C2233 227 MB Cyl/hd/spt 733 12 53


********************* IBM Ibm ibm ****************************

WDA-L160 163 MB Cyl/hd/spt 984 10 34
WDA-L42 42MB Cyl/hd/spt 977 5 17

Jumpers for IBM WDA-L160:

Fit JP2 for Master or single drive

Remove JP2 and fit JP3 for Slave

JP1 appears to be always fitted.

Functions of other jumpers unknown at present.

Position of jumpers:

-----------------------------------------
| Drive Mechanism |
| |
-----------------------------------------
PCB . . . .
. . . .

JP 4 3 2 1


Also:

IBM 85 M IDE (number not known)

10 Heads 984 Cylinders 17 Sectors 0 WPC 984 LZ

Patches as for L160 above


********************* JVC Jvc jvc ****************************

JD-E2085M 79 MB Cyl/hd/spt 973 4 43


*********************** KALOK Kalok kalok ***************************

KALOK KL3100 105 MB
BIOS: cyl 979 heads 6 sectors 35

KALOK KL3120 120 MB
BIOS: Cyl 981 heads 6 sectors 40

The following jumper settings have been reported for KL3100 but are probably
also valid for other Kalok drives.

Single HD:
o o o o o

o o o o-o <-- same row as pin 1 of the IDE connector.

Master (disk 1):
o o o o o
|
o o o o o

Slave:
o o o o o
|
o o o o o

These 5 pairs of pins are at the righthand side of the disk.

************************ MAXTOR Maxtor maxtor ***************************

Model Cyls Heads Sectors Precomp Landing Zone
---------- ----- ----- ------- ------- ------------
LXT-200A 816 15 32 0 816
LXT-213A 683 16 38 0 683
LXT-340A 654 16 63 0 654
LXT437A 842 16 63 0 842
LXT535A 1036 16 63 0 1024

Jumpers are as follows:

The bottom of the drive looks like this (well, sort of):

| o o 1-2 |
| o o 3-4 |
| o o 5-6 |
| o o 7-8 |
| o o 9-10 |
| |
+[POWER] [IDE CONNECTOR]-----+

Single drive Dual Drive System
Pin numbers Jumper System Master Slave
----------- ------ ------------ ------ -----
1-2 Slave Drive remove remove install
3-4 Activity LED optional optional optional
5-6 Slave Present remove remove optional
7-8 Master Drive remove install remove
9-10 Sync Spindle remove (n/a) optional* remove

* only one drive (the master) in an array should have this jumper installed.


Hd Cyl spt
Maxtor 2585A 10 981 17

Maxtor 7060A 16 467 17 62,0 J14 closed, J13 closed
Maxtor 7060A 7 1024 17 59,5 J14 open, J13 open
Maxtor 7060A 4 762 39 58,0 J14 closed, J13 open
Maxtor 7060A 8 925 17 57,9 J14 open, J13 closed

Maxtor 7120A 16 936 17 124,3 J14 closed, J13 closed
Maxtor 7120A 14 1024 17 119,0 j14 open, J13 open
Maxtor 7120A 8 762 39 116,0 J14 closed, J13 open
Maxtor 7120A 15 900 17 112,0 J14 open, J13 closed
Maxtor 7120A 8 824 33 106,2 J14

Jumpers for the above 2 drives:

J11 I/O-channel ready ( open: disabled; close: enabled )
J13 see above
J14 see above
J15 operation-status ( open: normal; close: factory )
J J J J J
2 1 1 1 1
0 9 8 7 6

Power data-cable

J16: Idle mode latch ( open: disabled; close: enabled )
J17: drive model ( open: 7060A; close 7120A )
J18: ECC Bytes ( open: 7 bytes; close: 4 bytes )

Master/Slave: drive is master and alone : J20 closed, J19 closed
drive is master of two drives: J20 closed, J19 open
drive is slave of two drives : J20 open , J19 closed


Maxtor 7213A

Default (power-up) AT BIOS Translation Parameters (others possible)
Cyl Hds SpT MBytes
683 16 38 212

There are two sets of jumpers. A set of 5 and a set of
4. With the power and IDE connector toward you, the set of 5 is
numbered (left to right) J16 - J20 , and the set of 4 is numbered
(bottom to top) J22-J25.

The only jumper of normal interest is J20. Jumper it for only
drive in a single drive system, or master drive in a dual drive
system.

Remove the jumper J20 for slave drive in a dual drive system.

J19 is a dummy and may be used to store the spare shunt if the
drive is configured for a slave mode.

Jumpers J17, J18, J24, J25 are factory reserved. Abnormal operation
may occur if jumpered.

Jumper 22 is sync spindle enabled/disabled (open=disabled)
Jumper 23 is sync slave/master (open=slave)
Jumper 16 is I/O Channel Ready (open=disabled)


Maxtor 7245A (245Mb IDE; self-parking; Universal Translate):
Drive type : User defineable
Cyl Hds WPC LZ S/T
967 16 0 0 31 (WPC and LZ optional)

Master(2): J20 closed
Slave(2): J20 open (use J19 for shunt storage)
Single: J20 closed



Basic Specifications
-------------------------------------------------------------------
Formated Data Sect. Average
Model Capacity Cylinders Heads Disks Track Cache Seek Time
7080A 82.2 MB 1.170 4 2 36 32k 17ms
7040A 41.1 MB 1.170 2 1 36 32k 17ms

AT BIOS Translation Parameters
---------------------------------+---------------------------------
Model Cyls Heads Spt MB | Model Cyls Heads Spt MB
7080A 1039 9 18 82.1 | 7040A 524 4 40 40.9
981 10 17 81.4 | 981 4 17 40.7
832 6 33 80.4 | 977 5 17 40.5
497 10 33 80.0 |
1024 9 17 76.5 |

Technical Notes:
------------------------------------------------------------------------
* The WPC and Landing Zone BIOS entieres do not need a specific number
for proper operation. Maxtor AT interface hard drives will ignore and
override any numbers programmed.

* Drive is low-level formated with 1:1 interleave at factory, with any
defects retired to a dedicated non-destructive zone.

* The drive's on-board controller will auto-translate every cylinder,
head, and SPT combination listed in the parameters table. Therefore,
configuration jumpers J13 and J14 are not required for most AT BIOS
setup applications.

* The 7080A is shipped with J17-J20 jumered and the 7040A is shipped
with J18-J20 jumpered to operate as single AT IDE drives. J20 and J19
control master/slave operation.

7080A / 7040A Jumper Designation
------------------------------------------------------------------------
Jumper | 21111 1111 | J3 1 +12V DC J7 1 +5V
Position | 09876 5431 | 2 +12V Ground 2 +12V
| | 3 +5V Ground 3 Ground
Pins +[4321]--[1 ]--[321]+ 4 +5V DC
J3 Power Data Cable J7 Power

J20 J19 Master/Slave Select (*) Single Drive closed, closed
Master (Dual) closed, open
Slave (Dual) open, closed
J18 ECC Bytes (*) closed 4 Bytes / open 7 Bytes
J17 Drive Model open 7040A / closed 7080A
J16 Idle Mode Latch (*) open disabled / closed enabled
J15 Reserved for Factory (*) open normal / closed factory
J11 I/O Channel Ready (*) open disabled / closed enabled
J14 J13 Default Configuration at Power Up
Cyls Heads SpT MB J14 J13 (J17)
40MB (*) 981 5 17 40.7 open open open
524 4 40 40.9 open closed open
80MB (*) 981 10 17 81.4 open open closed
832 6 33 80.4 open closed closed
1024 9 17 76.5 closed open closed
(60MB) 762 4 39 58.0 closed closed closed
------------------------------------------------------------------------
(*) = Default Note: A spare jumper is supplied across J13 and J14.

>I have a 7131AT maxtor in my machine and setup info as follows:
>
> 1002 cylinders
> 8 heads
> 32 sectors
> 0 precomp
> 1002 LZ
>

********************* MICROPOLIS Micropolis micropolis ***********************


Drive 2105A 2112A
----------------------------------------
Unformatted MB 647 1220
Formatted MB 560 1050
Platters 5 8
Heads 8 15
Cylinders 1760 1760
----------------------------------------

Performance (both):

Track to track (read) 1.5 msec
Track to track (write) 2.5 msec
Average 10 msec
Max 25 msec
Avg Rotational Latency 5.56 msec
Rotational speed 5400 rpm (+/- 5%)
Data Transfer Rate upto 5Mbytes/sec
Internal data rate 24-40 Mbits/sec

BIOS Settings:

2105A 1084 cyl 16 heads 63 sectors
2112A* master 1024 cyl 16 heads 63 sectors
slave 1010 cyl 16 heads 63 sectors

* the 2112A emulates both master and slave


Jumpers (labelled J6 on the drive)

----
|oo| W1\ only these 2 are used
|oo| W2/
|oo|
|oo|
|oo|
----

W2 W1
-- --
in in 2112A only - drive emulates both master + slave
in out Drive is master, slave is present
out in Drive is slave
out out Drive is master, no slave present (ie single drive)


***************** MICROSCIENCE Microscience microscience *****************

MicroScience

Model: 7100-00
Heads: 7
Cylinders: 855
S/T: 35 (?)
Size: 105M


Model # 8040-00.
Size 40M 5hd/17sec/977cyl

Model # cyls # heads spt lz precomp cap (formatted)
7070-20 960 5 35 960 960 86 MB
7100-00 855 7 35 855 855 107 MB
7100-20 960 7 35 960 960 120 MB
8040 1024 2 40 1024 1024 41 MB

(NOTE: I have no jumper information on the model 8040)
On the 7xxx series the jumper pins are bent parallel to the board. When
they are pointing toward you #1 is on the left, there are 8 altogether.

single drive all open
master drive 1-2 shorted
slave drive 7-8 shorted


*************** MINISCRIBE Miniscribe miniscribe ************************

Miniscribe

MODEL AT CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS
8225AT 3.5" 21 745 2 - - 8 28 MS 28
8051AT 3.5" 42 745 4 - - 8 28 MS 28
8450AT 3.5" 42 745 4 - - 8 40 MS 28

Master(2): 5-6
Slave(2): 1-2
Single: 1-3 (shunt storage)


*************************** NEC Nec nec *********************************

NEC D3735, 40 MB
BIOS: Cyl 537 Head 4 sect 41

NEC D3755, 105 MB
BIOS: Cyl 625 Head 8 sect 41

NEC D3756, 105 MB
BIOS: Cyl 1005 Head 12 sect 17

NEC D3741, 44 MB
BIOS: Cyl 423 Head 8 sect 26 WPcom 0 LZone 424

Jumper JP12 JP13 (for all above NEC drives)
Single 0 0
Master 1 0
Slave 1 1

There have been reported difficulties in using WD Caviar as Master and
NEC drives as slave - the other way it works.

************************ QUANTUM Quantum quantum *************************

Logical Specs for Quantum AT Drives
COMPLIMENTS OF COMPUTER BROKERS OF CANADA


Model Cap Avg Acc Cylinders Heads Sectors/Track
(MB) (ms)

40AT 42 19 965 5 17
80AT 84 19 965 10 17
120AT 120 15 814 9 32
170AT 168 15 968 10 34
210AT 209 15 873 13 36
425AT 426 14 1021 16 51
LPS 52AT 52 17 751 8 17
LPS 80AT 83 17 611 16 17
LPS 105AT 105 17 755 16 17
LPS 120AT 122 16 901 5 53
LPS 170AT 160 15 968 10 34
LPS 240AT 245 16 723 13 51
LPS 540A see below

=================================================
Legend: 1=Jumper Installed 0=No Jumper
=================================================

40 & 80 AT Jumpers

DS SS Meaning
1 0 Single drive configuration
1 1 Master of dual drive
0 0 Slave of dual drive
0 1 Self-Seek Test

=======================================================

120, 170, 210 & 425 AT Jumpers

DS SP SS Meaning
0 0 0 Slave when the Master is Quantum PRODRIVE other than 40/80A
0 0 1 Slave in PRODRIVE 40/80A mode
0 1 0 Slave when Master is non Quantum Drive
0 1 1 Not Used
1 0 1 Master drive PDIAG mode checking DASP for slave
1 1 0 Master in PDIAG mode using SP to check if slave present
1 1 1 Master in 40/80A mode using SP to check if slave present
1 0 0 Single drive

=======================================================

LPS 52, 80, 105, 120, 170 & 240 AT Jumpers
DS SP DM* Meaning
0 0 0 Slave in standard PDIAG mode for compatibility with drives that use
PDIAG-line to handle Master/Slave communications
0 0 1 Slave in PRODRIVE 40/80A mode compat. without using PDIAG line
0 1 0 Self Test
0 1 1 Self Test
1 0 0 Master in PDIAG mode using DASP to check for Slave
1 0 1 Master in 40/80A Mode using DASP to check for Slave
1 1 0 Master in PDIAG mode using SP to check for Slave without
checking DASP
1 1 1 Master in 40/80A mode using SP to check for Slave without
checking DASP


======================================================================
* While my Spec form marked the jumper name DM, it is labeled as CS on
my LPS 240AT drive.

Quantum LPS540A:
1120 cyl. 16 hds. 59 sec/trck 541MB
1024 cyl. 16 hds. 63 sec/trck 528MB

The second option is for those that will use the drive under DOS (1024 limit
without driver support).

9-12ms avg. access time
ECC Reed Solomon, 4,500 rpm, local bus support, fast multiword DMA, 128k cache
(of this 32k is used by firmware), read/write caching.


The QUANTUM ELS series:

Model Cap Avg Acc Cylinders Heads Sectors/Track
(MB) (ms)

ELS42AT 42 - 968 5 17
ELS85AT 85 - 977 10 17
ELS127AT 127 - 919 16 17
ELS170AT 170 - 1011 15 22

Write precomp = 0 for all Quantum drives ( probably no significance)
Landing Zone = Cylinders

Straps: If an ELS drive is
master only, use DS
master with slave, DS or, DS and SP in some cases
slave, no strap


********************* RODIME Rodime rodime ******************************

Information for RO 3008A and RO 3009A series hard disk drives:

Drive Types

Model Cyls Hds Sectors/Trk No. blocks Formatted Cap.
------- ---- --- ----------- ---------- --------------
RO3058A 868 3 34 88,536 45.33 MByets
RO3088A 868 5 34 147,560 75.55 MByets
RO3095A 923 5 34 156,910 80.33 MByets
RO3128A 868 7 34 206,584 105.77 MByets
RO3135A 923 7 34 219,674 112.47 MByets

RO3059A 217 15 28 91,158 46.67 MByets
RO3089A 325 15 28 136,737 70.00 MByets
RO3129A 492 15 28 206,645 105.80 MByets
RO3139A 523 15 28 219,735 112.50 MByets
RO3209A 759 15 28 319,053 163.35 MByets
RO3259A 976 15 28 410,211 210.02 MByets


Link Options

In order to install the Rodime Ro 3000A series drives the dumpers for
the single/dual drive and LED operation on the drive need to be set as
described in the relevant product specification.
I a single drive environment the drive is described as a Master.
In a dual drive environment the drives are described as a Master and a
Slave. This is due to the protocal the takes place between the two drives
when performing diagnostics.
There are four links, LK1, LK2, LK4 and LK5, adjacent to the 40 way
interface connector. They have the following functions and are described
in order as viewed from the end of the drive, with the first jumper
described nearest the 40 way interface connector.

LK2: LED
When fitted, this jumper connects the LED drive to pin 39 of the
interface. This allows a LED to be connected to the interface. An
external current limiting resistor needs to be fitted in series with
the LED when this option is selected. The value of the resistor will
be dependant on the LED type chosen but will be in the range of 130
Ohms ot 220 Ohms.

LK1: Dual Drives
This jumper must be fitted when two drives are attached to a single
bus. It fallows communication across the 40 way interface connector,
indicating, to the Master drive, the presence of a Slave.

LK4: Master
When fitted this signifies that the drive jumpered is a Master. If
there are two drives connected on a single bus then only one may be
jumpered in this way.

LK5: IOChRdy
When fitted this connects the IOChRdy signal to the drive, it is
fitted when the drive is used in host systems that have a higher
data transfer rate than the drive i.e. greater than 4 MBytes per
second when using 1:1 interleave. This jumper is not normally
fitted as most hosts transfer at a lower rate than 4 MBytes per
second.

There are four possible Master/Slave configurations in which a drive(s)
may be jumpered:

Master, single drive with LED on interface LK2 & LK4 fitted.
Master, single drive without LED on interface LK4 only fitted.
Master, dual drive without LED on interface LK4 & LK1 fitted.
Slave, dual drive without LED on interface No jumpers fitted.
Master, dual drive with LED on interface LK4, LK1 & LK2 fitted.
Slave, dual drive with LED on interface LK2 only fitted.

The Master drive will delay power-up for approximately two seconds to
reduce power surges in applications where dual drives are used.

The other connections for a LED will be found close to the 28 way
connector at the other end of the drive. This LED driver is not affected
by the link options. An internal current limiting resistor is on the
drive for this LED driver. Refer to the product specification for further
details.


*************************** SAMSUNG Samsung samsung *************************

CYL hd Sectors
SHD-3101A 776 8 33 (100 MB) (MB = 1024 bytes)
SHD-3061A 977 7 17 (56.76 MB)
SHD-3062A 917 15 17 (114 MB)

for drive SHD-3101A, SHD-3061A and SHD-3062A

2 drives
Jumper 1 drive Master Slave
C/D J J NJ
DSP NJ J NJ
ACT J (1) (1)
HSP NJ NJ (2)
J = Jumpered
NJ = No Jumpered

(1) In a two-drive system,it is possible to drive one LED
with both drives. An external current limiting resister is required

(2) If the drive is connected to a host that requires that the - DIRVE SLAVE
PRESENT be supplied from the slave drive via the interface signal -
HOST SLV/ACT, then this jumper must be installed, the ACT jumper must
not be installed because the two jumpers are mutually exclusive

*************************** SEAGATE Seagate seagate *************************

There is a list of most Seagate HD (including MFM, SCSI, ESDIand IDE) on
every Simtel mirror under

/msdos/dskutl/1seagate.zip

It contains info about the following drives:

st1144a st138a st274a st3283a
st1057a st1156a st1400a st280a st351ax
st1090a st1162a st1401a st3051a st9051a
st1102a st1186a st1480a st3096a st9077a
st1111a st1201a st157a st3120a st9096a
st1126a st1239a st2274a st3144a st9144a
st1133a st125a st2383a st325ax

additional info:

ST3243A 204 MB Cyl/Hd/spt 1024/12/34
ST351AX 41 MB 820/6/17
ST9235A 200 MB 985/13/32

and also...

pd1:<msdos.info> (on SIMTEL mirrors)
1SGATHTX.ZIP Seagate tech support's disk ref (needs HHV20)

This is a concise and complete source of information for all hard disks
that Seagate makes, including MFM, RLL, IDE, and SCSI types. This
information includes:

Detailed technical specifications for each drive
Switch and Jumper settings for each drive (more than just settings
for BIOSs and low--level formatting routines)
Miscellaneous notes about each drive

This is the most up-to-date information that Seagate provides on its BBS.
It is dated 05/14/93.

This file is a hypertext version of file 1SEAGATE.ZIP and requires
HHV20.ZIP to view it.


******************* TEAC Teac teac ********************

Model: SD-3105

Cyls. Heads Sect/T PreCmp LZone Capacity
------ ------ ------ ------ ------ ---------
Physical 1282 4 40 - - 105021440
BIOS (AMI) 641 8 40 0 0 105021440 (100.2M)
(Award) 926 13 17 0 0 104778752 (99.9M)
(Phoenix) 776 8 33 0 0 104890368 (100.0M)

Connectors and Jumpers:

+----+ 1 Jumper Function
|....| +---+ +-------/ /---+ 2 0 0 ON: -ACT selected (ext.LED)
| | |...| |::::::/ /::::| :::: OFF: -SLV PRESENT selected
+----+ +---+ +-----/ /-----+ 3 1 1 ON: Two HDD's
J2 J7 40 J1 ---- OFF: Single HDD
Power (Power) Signal Jumpers 2 ON: Master (/Single)
OFF: Slave (with 2 units used)
3 ON: -I/O CH RDY not output
OFF: -I/O CH RDY is output
Master Slave Settings:

Jumper no.: 1 2
-----------------------
Single....: 0 1 1, ON = jumpered
Master....: 1 1 0, OFF = not jumpered
Slave.....: 1 0


********************* TOSHIBA Toshiba toshiba ***************************

cap Cyl Hd spt
MK1122FC 41 977 2 43
MK2024FC 82 977 4 43
MK2124FC 124 934 16 17
MK2224FC 203 684 16 38
MK234FCH 101 845 7 35

Toshiba MK 234FCF.
845 Cyl
7 Head
0 Pre
845 LZ
35 Sectors
101 Size
The jumpers settings I got from Toshiba. They refer to
connector PJ10, the 1st being the pair of pins closet to the
outside of the drive and the 6th being the pair closest to
center of the drive.
configuration jumpers on
------------ ----------
single drive 1st and 3rd
master w/ slave 1st, 3rd, and 4th
slave 1st


**************** WESTERN DIGITAL Western Digital western digital **************

Caviar series:

Name Size (Mb) Cylinders Heads Sectors
----------------------------------------------------
WDAC140 40.7 980 5 17
WDAC280 81.3 980 10 17
WDAC1170 163 1010 6 55
WDAC2120 119.0 1024 14 17
WDAC2170 162.7 1010 6 55
WDAC2200 202.8 989 12 35
WDAC2250 244 1010 9 55
WDAC2340 325.4 1010 12 55
WDAC2420 405.6 989 15 56


> My 1st HD was a Quantum (LPS) 105AT (I assume th LPS, as I haven't any
> docs.)
> >LPS 105AT 105 17 755 16 17
> The second was a Western Digital Caviar 340Mb:
> >WDAC2340 325.4 1010 12 55
> Using the information from your document, I set up the Quantum as master
> and the WDC as slave. This worked fine most of the time, but when booting
> sometimes HDD-controller errors occured. When I switched the drives (WDC
> as master, Quantum as slave) it worked perfectly, as has done ever since.

Manufacturer: Western Digital
Serie: Caviar
Name: WDAC2420
Size(Mb): 405.6
Cylinders: 989
Heads: 15
Sectors: 56
(uses dynamic translation)
Jumpers: CP MA SL

The drive runs as a slave with a WDAC2200 as master just fine.


Please note that these are the *recommended* CMOS parameters. All the disks
support so-called dynamic translation, and should thus be able to work with
any parameters having fewer sectors than the total number of sectors on
the disk.

Now, according to the manual, the jumper settings are as follows:

Jumper CP MA SL
-------------------------------------------------
Single 0 0 0
Master 0 1 0
Slave 0 0 1
Slave with Conner CP342 or CP3022 1 0 1


Maybe there are 2 kinds of Caviar's floating around:

If your jumpers read MA SL and SI then use:
Jumper SI MA SL
Single 1 0 0
Master 0 1 0
Slave 0 0 1

There have been reported difficulties in using WD Caviar as Master and
NEC drives as slave - the other way it works.
> When I installed a Conner CP3204F (203 MB) as master and a WD Caviar 2200
> (203 MB) as slave, both with and without the "CP" jumper, the Caviar had
> seemingly normal behaviour. However, when doing writes to the Caviar, once
> in a while it would overwrite directories etc. Using FASTBACK was almost
> impossible.
>
> The workaround is to install the Caviar as the master, and the Conner
> as the slave.


> I had a WD pirana 4200 (212 mb) IDE drive and added a Caviar 2340 (341 mb)
> drive. No matter what I did with the CMOS settings, as soon as I define
> the D drive (as anything) and rebooted, it would hang for about 2 minutes
> and then report "D: drive failure". I am using an intelligent IDE controller
> since my AMI bios was too old to support IDE drives.
>
> The fix was to call the 4200 the slave and the 2340 the master.
> All has been working fine since then.


WD93044-A (40 MB)
BIOS-Settings
977 cyln, 5 heads, 17 sect, LZone: 977

+-------+ +---+---+---+ 1: drive is master
| cable | | 1 | 2 | 3 | 2: drive is slave
+-------+ +---+---+---+ 3: second drive is a conner-drive

No jumper set: this is the only drive.

--

WD93048-A
40 MB
Cyl 782
Heads 4
s/track 27

Jumper not known; try settings for WD93044-A

--

WDAH260 60MB Cyl/Hd/spt 1024 7 17
WDAH280 82MB 980 10 17

WDAP4200 202MB 987 12 35

******************** Useful telephone numbers... ********************

Conner:
BBS: 408-456-4415
Talk info: 1-800-426-6637
FaxBack: 408-456-4903

The "Talk info" number above is now a Fax-on-demand system. Very nice,
considering both the incoming call and outgoing fax are paid for by them!
You can also speak with a human for technical assistance at this number.

(Conner Europe (in UK) ; +44 628 777277 (voice)
+44 628 592801 (fax))
Miniscribe:
303-651-6000

Maxtor:
Info/tech support: 800-262-9867
FAX-back: 303-678-2618
BBS: 303-678-2222
They list their 800 number as 1(800)2-MAXTOR.

Quantum:
408-894-4000
408-944-0410 (Support)
408-894-3218 (FAX)
408-894-3214 (BBS)

Seagate:
Info/tech support: 408-438-8222
FAX-back: 408-438-2620
BBS: 408-438-8771

Western Digital:
Info/tech support: 714-932-4900
BBS:
U.S. 1200/2400 714-753-1234
U.S. 9600 714-753-1068
France 1200/2400 ..-331-69-85-3914 (? French code is 33 not 331)
Germany 1200/2400 ..-49-89-922006-60
U.K. 1200/2400 ..-44-372-360387

The US Toll free number for Western Digital tech support is
800-832-4778


******************* last but not least *****************

If I could help you with my little collection and if you live in a
part of the world far away from me, how about a postcard for my pinboard?
I will surely answer!

Carsten Grammes
Saarbruecker Str. 47
D-66292 Riegelsberg
Germany


S) 5.0 >Video

This section is posted separately as the "comp.sys.ibm.pc.hardware.video
FAQ" and "comp.sys.ibm.pc.hardware.video Chipsets List" and archived
along side this FAQ. Refer to section one for instructions on
retrieving these files.

Newsgroups: comp.sys.ibm.pc.hardware.video
Subject: comp.sys.ibm.pc.hardware.video FAQ, Part * / *
From: sc...@bme.ri.ccf.org (Michael Scott)
Summary: This is a monthly posting containing a list of Frequently
Asked Questions (and their answers) pertaining to video
hardware for IBM PC clones. It should be read by anyone who
wishes to post to the comp.sys.ibm.pc.hardware.video
newsgroup.
Archive-name: pc-hardware-faq/video/part*
URL: http://www.heartlab.rri.uwo.ca/videofaq.html
---
Newsgroups: comp.sys.ibm.pc.hardware.video
Subject: comp.sys.ibm.pc.hardware.video Chipsets List
From: sc...@bme.ri.ccf.org (Michael Scott)
Summary: This document is distributed with the comp.sys.ibm.pc.hardware.video
FAQ and contains information on video chipsets and specific video
card models.
Archive-name: pc-hardware-faq/video/chipsets
URL: http://www.heartlab.rri.uwo.ca/videofaq.html

S) 6.0 Systems

Q) 6.1 *What should I upgrade first?

Q) 6.2 Do I need a CPU fan / heat sink

[From: jru...@mtmis1.mis.semi.harris.com (John Anthony Ruchak)]

This is highly debatable. In general, if you buy from a good,
self-respecting company, any additional cooling requirements would
have been taken care of before your system was delivered to you.

I'm responsible for PC maintenance at my site, and I don't worry about
additional cooling in any of the pre-packaged systems we receive. All
rebuilt and/or upgraded 486-33 (or higher) systems do, however,
receive additional cooling because older cases may not provide
adequate ventilation for today's technology. Additional cooling on
the infamously-hot Pentium (586) is always added.

So, do YOU need a CPU fan in YOUR system? Probably not for "ready to
run out of the box systems." If you are _REALLY_ worried that your
system is suffering from too much heat, consult with a reputable
service center. They will not only answer your questions, but they
can also install any additional cooling systems that may be needed. A
good rule of thumb, though - "don't try to fix what isn't broken."
In other words, if your system is working, don't look for trouble.

Q) 6.3 What does the turbo switch do?

[From: c...@truffula.sj.ca.us (Cameron L. Spitzer)]

It slows your system down so you can play games that were written
with timing mechanisms based on CPU execution rate. I know of three
implementations:
1. A programmable divider delivers the clock signal at two different
speeds.
2. Extra wait states are inserted in all memory cycles.
3. Dummy DMA cycles or extra referesh cycles are inserted.
The first is by far the most common.

Q) 6.4 How does the front panel LED display measure the system's speed?

It doesn't. The only useful information going to these displays is if
you are in turbo mode. They have jumpers or dials behind the display
which you can use to set them to show any two arbitrary numbers (for
turbo and non-turbo modes).

Q) 6.5 Should I turn my computer/monitor off?

Turning a device on/off causes thermal stress. Leaving it on causes
wear and tear (even on non moving parts). The only thing you
shouldn't do is quickly power cycle the computer. If you turn it
on/off, leave it that way for at least a few seconds. Other than
that, it's up to you.

Q) 6.6 Are there any manufacturers/distributers who read the net?

Yes, it is known that Zeos, Gateway 2000, Dell, Adaptec, HP and others
all read the net to some extent. However, for best results, use the
support phone numbers.


===============
Ralph Valentino (ra...@worcester.com) (ra...@alum.wpi.edu)
Senior Design Engineer, Instrinsix Corp.

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