Adding an ISA dual parallel port card
R Morris
information other than the jumper settings sheets. While I am fairly
literate in PC's in general I have no MCSE certification either. Can anybody
recommend any sites that might give some instructions on configuring the
addresses and IRQ's so that this thing will add a LPT 2 and LPT 3 port for
me. Computer is celeron 300 on WIN 98SE with a ASUS P2B MB. Online vendor
I bought from has no support available nor do any of the salespeople that I
am able to speak with know who the manufacture is. Also there is no
indication of manufacture on the card at all. Only thing on the box is
PT10-2 PC107 1356 IO 320
--
Randy Morris
rdmo...@knology.net
Daniel Ganek
First, IRQs don't matter since windoze doesn't use them except on lpt1.
Go to the device manager, select computer->properties. Then select
input/output (I/O). This will list all the addresses in use. Set the
address jumpers on your card to any unused addresses.
/dan
Scott
wrote:
>
>I bought a dual output parallel ISA card that came with no installation
>information other than the jumper settings sheets. While I am fairly
>literate in PC's in general I have no MCSE certification either. Can anybody
>recommend any sites that might give some instructions on configuring the
>addresses and IRQ's so that this thing will add a LPT 2 and LPT 3 port for
>me.
Their are conflicting opinions about this, but it basically comes down
to 2 possible setups. A lot of newer systems tend to set the address
of LPT1 to 3BC, but the older "standard" put LPT1 at address 378.
However, LPT1 almost always uses IRQ7 and LPT2 uses IRQ5. I,
personally, would recomend the following (LPT1 would be the one that
is "built-in" to the mainboard, and LPT's 2 and 3 would be on the ISA
card):
LPT1 LPT2 LPT3
378 278 3BC
IRQ7 IRQ5 IRQ5 or 7
However, since a lot of newer systems default to address 3BC for LPT1,
you might want to try the following setup:
LPT1 LPT2 LPT3
3BC 278 378
IRQ7 IRQ5 IRQ5 or 7
Hope this helps,
Scott
sco...@XYZexit109.com
(To reply, remove the XYZ after the @ sign)
db...@sprynet.com
i installed one and had the same problems, but there was a tech. support
for mine and i emailed them and they sent me a 9 page, pictures of what
screen to go to etc. to get it up and running. i will have to scan this
and my scanner is not really hooked up as i have to cheat to get it to
work, dont have the correct driver, so in about a week if you dont get
it up let me know and if the kids will let me on the computer i will
scan and send you some pictures of what i have saved printed up. also
what format do you want them in\; jpg, bmp, gif?
i needed to new isa parallel card due to my piggybacking the printer nad
scanner on one parallel port would not work. after doing it, it worked
pretty good, later the old computer died.............but i saved the
instructions in my notebook.
Ralph Wade Phillips
"Scott" <sco...@XYZexit109.com> wrote in message
news:3b4bcaa4...@news.exit109.com...
>
> Their are conflicting opinions about this, but it basically comes down
> to 2 possible setups. A lot of newer systems tend to set the address
> of LPT1 to 3BC, but the older "standard" put LPT1 at address 378.
Actually, no. When the IBM PC was originally introduced, the
Monochrome Display Adapter (a text-only adapter) used 3BC as the built-in
parallel port, and the add-on Parallel Printer Adapter (required if you were
using the IBM Color Graphics Adapter, since it did NOT have a parallel port
on it) was at 378. So, LPT1: was 3BC, LPT2: was 378, and LPT3: was 278.
When Billy-boy Gates' folks came out with Windows 3.0, if it was an
AT machine (as opposed to a PS/2 machine), then he used the contrary 378 for
1, 278 for 2, and 3BC for 3. For a PS/2, he used 3BC, 378, 278.
This caused SEVERAL problems when a BIOS would map 3BC as LPT1 and
Windows mapped 3BC as LPT3 ... sigh.
Oh - due to IBM's wanting to sell either a monochrome, text system
to offices and a color system to homes, but running out of board space for
the parallel port on the color adapter, they had their BIOS mapping ports in
by bumping down LPT2: and LPT3: if the hardware LPT1: wasn't found, so that
you COULD have an LPT1 at 278 with IRQ 5.
OTGH, since they didn't expect you to have the MDA, the CGA, and the
PPA all three in at once (since the PC was a 5-slot machine, that left 1
slot for the floppy controller and just one slot free for memory - required
since the original PC board only supported 64K of RAM), they put 3BC and 378
both on IRQ 7, with 278 going on IRQ 5.
We're still paying the price for whatever the guy who set IRQs up on
the original PC was smoking or drinking that day ... sigh.
> However, LPT1 almost always uses IRQ7 and LPT2 uses IRQ5. I,
> personally, would recomend the following (LPT1 would be the one that
> is "built-in" to the mainboard, and LPT's 2 and 3 would be on the ISA
> card):
>
> LPT1 LPT2 LPT3
> 378 278 3BC
> IRQ7 IRQ5 IRQ5 or 7
>
> However, since a lot of newer systems default to address 3BC for LPT1,
> you might want to try the following setup:
>
> LPT1 LPT2 LPT3
> 3BC 278 378
> IRQ7 IRQ5 IRQ5 or 7
No, 3BC/IRQ7 for LPT1:, 378/IRQ7 for LPT2:, and 278/IRQ5 for LPT3:.
That's the industry standard addresses and IRQs. Anything else and older
DOS software will be confused.
RwP
* * Chas
Most of these types of cards will have some silk-screened numbers and letters beside the jumpers. If so, they should show how to set the jumpers for 378, 3BC or 278 (Some older cards assume that there is no onboard PP on the mobo and the set the 1st port on the card as LPT1). Set the jumper for the first port to LPT 2 at 278.
If you want to set up the second port on the card as LPT3 set the jumpers to 378 or 3BC depending on which address is used by LPT1 on your mobo. I would wait to make sure that there is no conflict with LPT2 before I set up LPT3.
Forget about setting the IRQ jumpers. Regardless of what "The Experts" say except for possibly some antique models, printers don't need IRQs! I'm looking at a couple of PCs that have multiple HP inkjet and LaserJet printers attached to them with the Siig cards and no IRQs. I've tried them all with and without IRQs and there is now difference in performance.
If you wanted to use a parallel port connection on a scanner or some other kind of device then you may need to use an IRQ. In that case, I would hook the device to LPT1 on your system and use LPT 2 and LPT3 for the printers.
--
Chas. ver...@aol.spamski.com (Drop spamski to E-mail me)
"R Morris" <rdmo...@knology.net> wrote in message news:PWN27.10639$xf7.5...@e420r-atl3.usenetserver.com...