TT ram upgrade
ktulu
anyone please advise the best place to go (UK), and any other upgrade
advice would be appreciated. Thanks, steve.
Martin-Éric Racine
If you have professional soldering skills, there are instructions
at the URL below to modify both the ST and TT RAM card by Atari.
As for alternate products, several options exist, but none are
manufactured anymore. Description at same URL.
--
Martin-Éric Racine, IT Consultant @ http://funkyware.atari.org/
May the Funk be with Q! The Atari ST Quick FAQ & TT030 Homepage
ktulu
> > anyone please advise the best place to go (UK), and any other upgrade
> > advice would be appreciated. Thanks, steve.
>
> If you have professional soldering skills, there are instructions
> at the URL below to modify both the ST and TT RAM card by Atari.
>
> As for alternate products, several options exist, but none are
> manufactured anymore. Description at same URL.
cheers for the url, I'll take a look... but I ain't no dab hand with a
soldering iron! :(
Steve
Barrie at Atarispares
"ktulu" <stev...@clara.co.uk> wrote in message
news:1eu6qyg.6ovu861dg0kiyN%stev...@clara.co.uk...
> Hi, I currently have 2mb STram & 4mb TTram - i want an upgrade :) Can
> anyone please advise the best place to go (UK), and any other upgrade
> advice would be appreciated. Thanks, steve.
Try Keychange Music. www.keychange.co.uk
I have a 2mb ST ram upgrade card in stock.
Barrie.
Martin-Éric Racine
> I would like to hear from someone who has actually converted a CA400312
> 4mb TT RAM card to 16mb. So far, I have never seen anyone claim to
> have successfully accomplished this modification. I'm sure not willing
> to attempt it on the only card I have. Anyone know FOR SURE if this
> works?
Nobody has ever confirmed this. However, I would tend to trust
those who privided the instructions.
I would definitely like to heard about anyone that has succeeded,
so I can add comments similar to the ST-RAM upgrade.
ktulu
> > 4mb TT RAM card to 16mb. So far, I have never seen anyone claim to
> > have successfully accomplished this modification. I'm sure not willing
> > to attempt it on the only card I have. Anyone know FOR SURE if this
> > works?
>
> Nobody has ever confirmed this. However, I would tend to trust
> those who privided the instructions.
>
> I would definitely like to heard about anyone that has succeeded,
> so I can add comments similar to the ST-RAM upgrade.
whats the max ram u can have on a TT then? Seeing as I've got 2mb ST and
4mb TT ?
By the sounds of talk in this thread, I'm guessing that I may need to
dump the (?) TTram and buy a new upgrade of TTram????
Actually, I've never opened my TT so I don't know how the ram is placed
- motherboard, upgrade, whatever.. I should take a look before calling
somewhere like Atari Workshop..hmm
Steve
ktulu
> > Hi, I currently have 2mb STram & 4mb TTram - i want an upgrade :) Can
> > anyone please advise the best place to go (UK), and any other upgrade
> > advice would be appreciated. Thanks, steve.
>
> Try Keychange Music. www.keychange.co.uk
>
> I have a 2mb ST ram upgrade card in stock.
I'll check the url 2night thanks, but I really wanted more than an extra
couple of meg.
Thanks, Steve
Lonny Pursell
> whats the max ram u can have on a TT then? Seeing as I've got 2mb ST and
> 4mb TT ?
Using Atari brand boards, assuming you can find them, 10meg STram
and 16meg TTram.
There are sone 3rd party TTram upgrades that can handle 64meg or
even 256meg.
> By the sounds of talk in this thread, I'm guessing that I may need to
> dump the (?) TTram and buy a new upgrade of TTram????
> Actually, I've never opened my TT so I don't know how the ram is placed
> - motherboard, upgrade, whatever.. I should take a look before calling
> somewhere like Atari Workshop..hmm
You better have a look, maybe you will get lucky and have one
of those TTram boards with 4 simm slots, which you can simply
upgrade to 16meg.
__________________________________________________________________
Lonny Pursell atari AT bright DOT net www.bright.net/~atari/
Thierry ARBEZ-CARME
=?iso-8859-1?Q?Martin-=C9ric_Racine?= <q-f...@funkyware.atari.org>
écrit:
>On Wed, 30 May 2001, Bill Freeman wrote:
>
>Nobody has ever confirmed this. However, I would tend to trust
>those who privided the instructions.
I made it, this is not easy and had some problems.
-First, not all 4Mb ram works(tt-ram boot test fail). I had to change
resistors RP102 and RP101 downto 22ohms. I also had to change burst
mode to standard mode because Atari use some specials kind of ram for
burst mode.
-Second, some programs bomb. Trying to copy a big file from a
partition to another bomb all times. No solution at this time.
In futur(long time :-)):
- I think to change again RP102 and RP101 for lower value.
- Try to add buffer(74HCxxx)?
- make another board with same electronic with 32 bits sim and buffer?
Very difficult because of double side and metal holes.
If you don't understand my bad english, i can write you in french :-)
Thierry
Ken Springer
ktulu wrote:
> whats the max ram u can have on a TT then? Seeing as I've got 2mb ST and
> 4mb TT ?
I have 42 megs in mine, 10 megs ST and 32 megs TT. GE Soft board from
Germany many years ago.
--
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Ken Springer "All progress depends upon the
unreasonable person."
George Bernard
Shaw
Cheap prices make for cheap goods; cheap goods make for
cheap men; and cheap men make for a cheap country!" -
President William McKinley
http://www.greeleynet.com/~wordwork/airpage.htm
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Barrie at Atarispares
"ktulu" <stev...@clara.co.uk> wrote in message
news:1eu8clk.2lje5aqzyoaoN%stev...@clara.co.uk...
I assumed you would have an upgradeable TT card, the extra 2 mb
ST ram is there if you need it, e.g. for progs that won't run in TT ram.
I am also the custodian of a TT field service manual......
Barrie at Keychange. www.keychange.co.uk
ktulu
> > whats the max ram u can have on a TT then? Seeing as I've got 2mb ST and
> > 4mb TT ?
>
> Using Atari brand boards, assuming you can find them, 10meg STram
> and 16meg TTram.
>
> There are sone 3rd party TTram upgrades that can handle 64meg or
> even 256meg.
>
> > By the sounds of talk in this thread, I'm guessing that I may need to
> > dump the (?) TTram and buy a new upgrade of TTram????
> > Actually, I've never opened my TT so I don't know how the ram is placed
> > - motherboard, upgrade, whatever.. I should take a look before calling
> > somewhere like Atari Workshop..hmm
>
> You better have a look, maybe you will get lucky and have one
> of those TTram boards with 4 simm slots, which you can simply
> upgrade to 16meg.
cheers mate, I'll have a look over the wkend :-)
Thanks, Steve
Harry Sideras
> ktulu wrote:
>> What's the max ram u can have on a TT then? Seeing as I've got 2mb
> I have 42 megs in mine, 10 megs ST and 32 megs TT. GE Soft board
> from Germany many years ago.
I started with the GE-Soft TTRam board along with just the 2Mb STRam
board. An upgrade of the STRam was ridiculously expensive via Brad
Korda so I ended up with the AixTT TTRam board with 32Mb. Of course,
I've had to adjust most programs to run in TTRam (GD-Flag by Gregor
Duchalski or Makefast by Thomas Much will do that).
There's also this message I saved out:
On 31 Dec 2000 11:29:36, Michael Schwingen wrote in
comp.sys.atari.st.tech:
> Woller Systeme should be able to get you a MagnumTT[1], which is
> the newer version of the AixTT which supports up to 2*128MB SIMMs.
>
> cu
> Michael
I'm pretty sure Atari Workshop do the AixTT board - amybe they do the
MagnumTT as well?
Because I live in Birmingham I grabbed the 72-pin RAM from David
Encill of Titan/Cortex. Whatever 16Mb SIMMs he kept for Falcon
upgrades worked instantly with the AixTT board.
HTH
rgds
H
Derryck Croker
Date: Wed, 30 May 2001 18:04:09 +0100
>> I have a 2mb ST ram upgrade card in stock.
>
>I'll check the url 2night thanks, but I really wanted more than an extra
>couple of meg.
You'll most likely get more benefit by upgrading your TTRAM board, unless
you need plenty of STRAM for running say, an Atari laser printer.
--
____ ____ ____
/ __ \ / __ \ / __ \
/ / / / / / / / / /_/ /
/ /_/ / / /_/ / / ____/
/_____/ /_____/ /_/ Translations
der...@cix.co.uk
dennis....@wanadoo.be
xla...@cix.co.uk
http://www.cix.co.uk/~derryck/index.htm
Oracle
Oracle
and put standard simm sockets ?
if so, would standard 4mb 30 pin sims work on there ?
doom_master
> >
> >I'll check the url 2night thanks, but I really wanted more than an extra
> >couple of meg.
>
> You'll most likely get more benefit by upgrading your TTRAM board, unless
> you need plenty of STRAM for running say, an Atari laser printer.
Cheers Derryck. I was hoping for this kind of answer from day one, as I
always try to plonk everything in ttram if I can... Thanks, Steve
Tim Anderson
IIRC from the good old days, STE's originally shipped with SIPPS and could
be replaced with simms as a direct replacement.
Obviously the socket would have to be soldered in.
You may also have to find a way of dissabling the burst mode.
Tim Anderson
"Oracle" <NoSpam!@Getlost.com> wrote in message
news:sJIR6.94103$ff.7...@news-server.bigpond.net.au...
Harry Sideras
As long as you look out for software that specifies it should not be
used in TTRam, just about everything is good to go in it. It's been a
long time since I learnt the details, but IIRC NVDI for graphics cards
should not run in TTRam (is that right?) and I think there was
something about DMA sound.
Can anyone else confirm this?
rgds
H
Lyndon Amsdon
> > Cheers Derryck. I was hoping for this kind of answer from day one,
> > as I always try to plonk everything in ttram if I can...
> > Thanks, Steve
>
>As long as you look out for software that specifies it should not be
>used in TTRam, just about everything is good to go in it. It's been a
>long time since I learnt the details, but IIRC NVDI for graphics cards
>should not run in TTRam (is that right?) and I think there was
>something about DMA sound.
>
>Can anyone else confirm this?
DMA sound players should not be put in TT ram, IIRC from the Nedplayer
docs. The DMA chip can't access TT ram and so this is why you need ST RAM
when using the Atari Laser (which is driven by the DMA port).
Oracle
Steve Sweet
>I always try to plonk everything in ttram if I can...
>As long as you look out for software that specifies it should not be
>used in TTRam, just about everything is good to go in it. It's been a
>long time since I learnt the details, but IIRC NVDI for graphics cards
>should not run in TTRam (is that right?) and I think there was
>something about DMA sound.
>Can anyone else confirm this?
I dont think i have anything that doesnt work with all the flags set
with the exception of Silkmouse and the HS-Modem MFP driver, everything
else is set for throttle open.
--
eMail: steve...@madasafish.com
Regards from STEve & his nice warm cosey PAK'd MegaSTE.
* MegaSTE 40Mhz 68030, 68882 FPU, 4+16 Meg RAM, SCSI II, MV-300 *
Raymond Collins
TT RAM chips must be 30 pin 1Mb or 4Mb x 8 non-parity nybble mode SIMMs.
^^^^^^^^^^^^^^^^^^^
The 8 means 8 chips on each memory card, NOT 9 or 3, they will not work.
I purchased my chips through Memory Supersource 1-800-457-6837.
Item # WM4000870S 4MX8 70NS SIMMS
The newer TT RAM boards it will have 6 jumpers labeled w101 to w106.
The jumpers settings are as follows:
w101 w102 w106
1M x 8 SIMMs (4MB) 2-3 2-3 2-3
4M x 8 SIMMs (16MB) 1-2 1-2 1-2
jumpers w103 & w104 are for the start address remain the same 2-3
jumper w105 is for burst mode ON 2-3 OFF 1-2
--
Raymond Collins | Atari TT030 4/16MB ST/TT RAM 245 HD
a.k.a. Master Z --|Z|-- | ZyXEL Elite 2864 Data/FAX/Voice
rcol...@voicenet.com | 2MB VRAM CyREL Sunrise graphics card
coll...@umdnj.edu | Die Hard, Serious Atarian since 1983
"Oracle" <NoSpam!@Getlost.com> wrote in message
news:kpgS6.97354$ff.7...@news-server.bigpond.net.au...
Thierry ARBEZ-CARME
=?iso-8859-1?Q?Martin-=C9ric_Racine?= <q-f...@funkyware.atari.org>
écrit:
>On Wed, 30 May 2001, Bill Freeman wrote:
>
>Nobody has ever confirmed this. However, I would tend to trust
>those who privided the instructions.
I made it, this is not easy and had some problems.
Don Wolfe
>Here is how to simply things a little.
Master Z,
>TT RAM chips must be 30 pin 1Mb or 4Mb x 8 non-parity nybble mode SIMMs.
> ^^^^^^^^^^^^^^^^^^^
>The 8 means 8 chips on each memory card, NOT 9 or 3, they will not work.
>I purchased my chips through Memory Supersource 1-800-457-6837.
>Item # WM4000870S 4MX8 70NS SIMMS
>
>
>The newer TT RAM boards it will have 6 jumpers labeled w101 to w106.
>The jumpers settings are as follows:
>
> w101 w102 w106
>1M x 8 SIMMs (4MB) 2-3 2-3 2-3
>4M x 8 SIMMs (16MB) 1-2 1-2 1-2
When TT30 owners say they have 32mg of TT-fast Ram how do they do this ??
Also do you remove the old 1MB chips off the old SIMMs cards and
install the new chips, or buy the chips and cards as a unit ??? Could
you give us a idea of the cost of the 4MB chips ??
Thanks for a great post! Donner......
>
>jumpers w103 & w104 are for the start address remain the same 2-3
>jumper w105 is for burst mode ON 2-3 OFF 1-2
>
>
>--
> Raymond Collins | Atari TT030 4/16MB ST/TT RAM 245 HD
> a.k.a. Master Z --|Z|-- | ZyXEL Elite 2864 Data/FAX/Voice
> rcol...@voicenet.com | 2MB VRAM CyREL Sunrise graphics card
> coll...@umdnj.edu | Die Hard, Serious Atarian since 1983
>
>
>"Oracle" <NoSpam!@Getlost.com> wrote in message
>news:kpgS6.97354$ff.7...@news-server.bigpond.net.au...
>> its all too complicated... i think ill just stay with 4mb :)
>>
>>
>
>
>.
Martin-Éric Racine
> When TT30 owners say they have 32mg of TT-fast Ram how do they do this ??
See URL below.
Raymond Collins
" Don Wolfe" <dwo...@netcentraltv.com> wrote in message
news:9fmovs$31b$1...@news.chatlink.com...
> On 4 Jun 2001 04:05:30 G, "Raymond Collins" wrote:
> >Here is how to simply things a little.
>
> Master Z,
>
> >TT RAM chips must be 30 pin 1Mb or 4Mb x 8 non-parity nybble mode SIMMs.
> > ^^^^^^^^^^^^^^^^^^^
> >The 8 means 8 chips on each memory card, NOT 9 or 3, they will not work.
> >I purchased my chips through Memory Supersource 1-800-457-6837.
> >Item # WM4000870S 4MX8 70NS SIMMS
> >
> >
> >The newer TT RAM boards it will have 6 jumpers labeled w101 to w106.
> >The jumpers settings are as follows:
> >
> > w101 w102 w106
> >1M x 8 SIMMs (4MB) 2-3 2-3 2-3
> >4M x 8 SIMMs (16MB) 1-2 1-2 1-2
>
> When TT30 owners say they have 32mg of TT-fast Ram how do they do this ??
This is done with boards from 3rd party developers.
> Also do you remove the old 1MB chips off the old SIMMs cards and
> install the new chips, or buy the chips and cards as a unit ???
This information is for the Atari board only, remove the 1 MB chips and
replace with
4 MB chips. For complete burst mode function use nybble mode RAM only.
> Could you give us a idea of the cost of the 4MB chips ??
When I bought my chips in 1995 about $400.00 dollars.
Michael Schwingen
Don Wolfe <dwo...@netcentraltv.com> wrote:
>
>When TT30 owners say they have 32mg of TT-fast Ram how do they do this ??
By downgrading the SIMMs on their MagnumTT card? :-)
cu
Michael
--
This is no virus, see http://piology.org/ILOVEYOU-Signature-FAQ.html
begin this-is-no-LOVE-LETTER-FOR-YOU.txt.vbs
In the beginning there was nothing, which exploded.
end
Steve Sweet
>>When TT30 owners say they have 32mg of TT-fast Ram how do they do this
>??
>By downgrading the SIMMs on their MagnumTT card? :-)
Ooh!!, bitch!!.
Don Wolfe
>> >TT RAM chips must be 30 pin 1Mb or 4Mb x 8 non-parity nybble mode SIMMs.
>> > ^^^^^^^^^^^^^^^^^^^
>> >The 8 means 8 chips on each memory card, NOT 9 or 3, they will not work.
>> >I purchased my chips through Memory Supersource 1-800-457-6837.
>> >Item # WM4000870S 4MX8 70NS SIMMS
>> >
>> >
>> >The newer TT RAM boards it will have 6 jumpers labeled w101 to w106.
>> >The jumpers settings are as follows:
>> >
>> > w101 w102 w106
>> >1M x 8 SIMMs (4MB) 2-3 2-3 2-3
>> >4M x 8 SIMMs (16MB) 1-2 1-2 1-2
The last time I had one of my TT's open, I think the TT ram BD had 4
SIMM Cards, are you saying to put 8-4M chips on 4 separete SIMM
Cards ??
Thanks for the Help, Donner......
Raymond Collins
There are 4 slots. You can only use 4 cards. They must be 1MB cards or 4MB
memory cards.
Raymond Collins
Don Wolfe
>> >> >TT RAM chips must be 30 pin 1Mb or 4Mb x 8 non-parity nybble mode
>SIMMs.
>> >> > ^^^^^^^^^^^^^^^^^^^
>> >> >The 8 means 8 chips on each memory card, NOT 9 or 3, they will not
>work.
>> >> >I purchased my chips through Memory Supersource 1-800-457-6837.
>> >> >Item # WM4000870S 4MX8 70NS SIMMS
>> >> >
>> >> >
>> >> >The newer TT RAM boards it will have 6 jumpers labeled w101 to w106.
>> >> >The jumpers settings are as follows:
>> >> >
>> >> > w101 w102 w106
>> >> >1M x 8 SIMMs (4MB) 2-3 2-3 2-3
>> >> >4M x 8 SIMMs (16MB) 1-2 1-2 1-2
>>
>> The last time I had one of my TT's open, I think the TT ram BD had 4
>> SIMM Cards, are you saying to put 8-4M chips on 4 separete SIMM
>> Cards ??
>>
>> Thanks for the Help, Donner......
>>
>
>
>There are 4 slots. You can only use 4 cards. They must be 1MB cards or 4MB
>memory cards.
I think I got-it :) In other words if there are 8 chips on a SIMM card I
would install 8 500K chips = 4MG, and I would need 32 500K chips to
bring the TT30 up to 16MG of fast Ram ??
Thanks, Donner......
Martin-Éric Racine
> On 8 Jun 2001 02:15:06 G, "Raymond Collins" wrote:
>
>
> >> >TT RAM chips must be 30 pin 1Mb or 4Mb x 8 non-parity nybble mode SIMMs.
> >> > ^^^^^^^^^^^^^^^^^^^
> >> >The 8 means 8 chips on each memory card, NOT 9 or 3, they will not work.
> >> >I purchased my chips through Memory Supersource 1-800-457-6837.
> >> >Item # WM4000870S 4MX8 70NS SIMMS
>
> The last time I had one of my TT's open, I think the TT ram
> BD had 4 SIMM Cards, are you saying to put 8-4M chips on 4
> separete SIMM Cards ??
Read again. He means SIMM modules equipped with 8 chips.
Harry Sideras
>>> Cheers Derryck. I was hoping for this kind of answer from day
>>> one, as I always try to plonk everything in ttram if I can...
>> be used in TTRam, just about everything is good to go in it. It's
>> been a long time since I learnt the details, but IIRC NVDI for
>> graphics cards should not run in TTRam (is that right?) and I
>> think there was something about DMA sound.
>>
>> Can anyone else confirm this?
>
> DMA sound players should not be put in TT ram, IIRC from the
> Nedplayer docs. The DMA chip can't access TT ram and so this is
> why you need ST RAM when using the Atari Laser (which is driven by
> the DMA port).
Thanks for the confirmation, Lyndon.
I don't think the issue is too critical, though. If the programs don't
work in TTRAM they will crash. Changing the program header back to
running in STRAM with the utilities mentioned previously will resolve
the problem immediately IIRC.
rgds
H
Harry Sideras
>
> TT RAM chips must be 30 pin 1Mb or 4Mb x 8 non-parity nybble mode
> SIMMs. ^^^^^^^^^^^^^^^^^^^
> The 8 means 8 chips on each memory card, NOT 9 or 3, they will not
> work.
Hi Raymond,
First, this information applies for use with the Atari TT-RAM boards,
doesn't it? I'm reasonably sure 9 chip SIMMs have been reported as ok,
but I won't contradict what you're saying if there's the possibility
of a problem.
Regarding Nibble mode chips, this is not essential but if this RAM can
be obtained then the board will work faster with them. Nibble mode are
4-bit, while page-mode are 1-bit according to my notes.
> I purchased my chips through Memory Supersource 1-800-457-6837.
> Item # WM4000870S 4MX8 70NS SIMMS
>
> The newer TT RAM boards it will have 6 jumpers labeled w101 to
> w106. The jumpers settings are as follows:
>
> w101 w102 w106
> 1M x 8 SIMMs (4MB) 2-3 2-3 2-3
> 4M x 8 SIMMs (16MB) 1-2 1-2 1-2
>
> jumpers w103 & w104 are for the start address remain the same 2-3
> jumper w105 is for burst mode ON 2-3 OFF 1-2
That matches my notes too. Also (from my notes):
If you have one of the 'older' atari boards which had only 3 jumpers:
set jumper dW3 to 1-2 (non burst, 2-3 is default)
> "Oracle" <NoSpam!@Getlost.com> wrote in message
> news:kpgS6.97354$ff.7...@news-server.bigpond.net.au...
>> its all too complicated... i think ill just stay with 4mb :)
HTH
rgds
H
Raymond Collins
"Harry Sideras" <sidc...@cix.co.uk> wrote in message
news:9g6e3f$20u$2...@plutonium.compulink.co.uk...
> On 4 Jun 2001 04:05:30 G, "Raymond Collins" wrote:
> > Here is how to simply things a little.
> >
> > TT RAM chips must be 30 pin 1Mb or 4Mb x 8 non-parity nybble mode
> > SIMMs. ^^^^^^^^^^^^^^^^^^^
> > The 8 means 8 chips on each memory card, NOT 9 or 3, they will not
> > work.
>
> Hi Raymond,
> First, this information applies for use with the Atari TT-RAM boards,
> doesn't it? I'm reasonably sure 9 chip SIMMs have been reported as ok,
> but I won't contradict what you're saying if there's the possibility
> of a problem.
My understanding indicates that the Atari RAM boards could only use the 8
chip set 30 pin SIMMs due to non-parity, 9 chip SIMMs have parity.
>
> Regarding Nibble mode chips, this is not essential but if this RAM can
> be obtained then the board will work faster with them. Nibble mode are
> 4-bit, while page-mode are 1-bit according to my notes.
To quibble a little about nybble (nibble) it is needed for a functional
burst mode
on a TT030. Thus if using non-niybble SIMMs you must set jumper w105 to
OFF.
Combine burst mode with a Cattamaran and you can get very fast machine.
> > I purchased my chips through Memory Supersource 1-800-457-6837.
> > Item # WM4000870S 4MX8 70NS SIMMS
> >
> > The newer TT RAM boards it will have 6 jumpers labeled w101 to
> > w106. The jumpers settings are as follows:
> >
> > w101 w102 w106
> > 1M x 8 SIMMs (4MB) 2-3 2-3 2-3
> > 4M x 8 SIMMs (16MB) 1-2 1-2 1-2
> >
> > jumpers w103 & w104 are for the start address remain the same 2-3
> > jumper w105 is for burst mode ON 2-3 OFF 1-2
>
> That matches my notes too. Also (from my notes):
>
> If you have one of the 'older' atari boards which had only 3 jumpers:
> set jumper dW3 to 1-2 (non burst, 2-3 is default)
>
I did not know that. Good hear this information, thanks!
Raymond Collins
Nope!
There are only 4 slots. The 30 pin SIMM are bought with the chips on them
you
do not create them as on the older STs buy swaping on the chip.
For the Atari TT RAM board you can only use the 1MB SIMMS with 8 chips,
NOT 9, 3, and or use the 4MB SIMMS with 8 chips.
Don Wolfe
>> I think I got-it :) In other words if there are 8 chips on a SIMM card I
>> would install 8 500K chips = 4MG, and I would need 32 500K chips to
>> bring the TT30 up to 16MG of fast Ram ??
>Nope!
>
>There are only 4 slots. The 30 pin SIMM are bought with the chips on them
>you
>do not create them as on the older STs buy swaping on the chip.
>
>For the Atari TT RAM board you can only use the 1MB SIMMS with 8 chips,
>NOT 9, 3, and or use the 4MB SIMMS with 8 chips.
OK!! This time I really "HAVE GOT IT" :^))
Thanks Again, Donner.......
Harry Sideras
> "Harry Sideras" <sidc...@cix.co.uk> wrote in message
> news:9g6e3f$20u$2...@plutonium.compulink.co.uk...
>> On 4 Jun 2001 04:05:30 G, "Raymond Collins" wrote:
>>> Here is how to simply things a little.
>>>
>>> TT RAM chips must be 30 pin 1Mb or 4Mb x 8 non-parity nybble mode
>>> SIMMs. ^^^^^^^^^^^^^^^^^^^
>>> The 8 means 8 chips on each memory card, NOT 9 or 3, they will
>>> not work.
>> boards, doesn't it? I'm reasonably sure 9 chip SIMMs have been
>> reported as ok, but I won't contradict what you're saying if
>> there's the possibility of a problem.
> My understanding indicates that the Atari RAM boards could only use
> the 8 chip set 30 pin SIMMs due to non-parity, 9 chip SIMMs have
> parity.
My first TTRam board was from GE-Soft, so I'm only repeating the
comments of others. I'm interested, though, in the fact that there was
more than one Atari board (as indicated at the bottom of my message).
Maybe the different boards had different restrictions? I'm guessing,
obviously, but your advice would seem to be the safest here.
>> Regarding Nibble mode chips, this is not essential but if this RAM
>> can be obtained then the board will work faster with them. Nibble
>> mode are 4-bit, while page-mode are 1-bit according to my notes.
> To quibble a little about nybble (nibble) it is needed for a
> functional burst mode on a TT030. Thus if using non-niybble SIMMs
> you must set jumper w105 to OFF.
Sure, but my point was that you said they _must_ be nibble mode. I
found these to be difficult to obtain (nobody knew what I was talking
about when I enquired) but normal RAM will work fine with the jumper
for nibble-mode switched off. That's all I was saying - just in case
anyone got worried about not finding the faster version.
> Combine burst mode with a Cattamaran and you can get very fast
> machine.
I'm sure that's right...
>>> I purchased my chips through Memory Supersource 1-800-457-6837.
>>> Item # WM4000870S 4MX8 70NS SIMMS
>>>
>>> The newer TT RAM boards it will have 6 jumpers labeled w101 to
>>> w106. The jumpers settings are as follows:
>>>
>>> w101 w102 w106
>>> 1M x 8 SIMMs (4MB) 2-3 2-3 2-3
>>> 4M x 8 SIMMs (16MB) 1-2 1-2 1-2
>>>
>>> jumpers w103 & w104 are for the start address remain the same 2-3
>>> jumper w105 is for burst mode ON 2-3 OFF 1-2
>>
>> That matches my notes too. Also (from my notes):
>>
>> If you have one of the 'older' atari boards which had only 3
>> jumpers:
>> set jumper dW3 to 1-2 (non burst, 2-3 is default)
>
> I did not know that. Good hear this information, thanks!
I think this was the point of your mesage when you described the newer
TT Ram boards. That must've meant the newer _Atari_ boards, I think.
rgds
H