exxos's Atari, Amiga & retro forum

I had a report about the 1230.. Seems RAM type can make a difference to how things behave. Probably because I have the RAM timings quite tight on the 1230.

I list the models in case you want to add it in the forum so that people know about it.

Insignis "NDS36PT5-20ET" for 64 MB: When a CF is connected the workbench does not show the memory, in case of bridging the RAMOE signal to GND the workbench shows the memory but gives random read errors in WHDLOAD.

Alliance "AS4C32M16SB-7TCN" for 128MB: When a CF is connected the workbench does not show the memory, in case of bridging the RAMOE signal to GND the workbench shows the memory but gives random read errors in WHDLOAD.

Issi "IS42S16320F-7TL" for 128MB: Everything works perfect in all circumstances without errors in WHDLoad.

P.S. Alliance and Insignis are used in the TF330 without any problems.

Such a pity...
Ordered 20x Micron's, was under impression we used them on TF330..


Getting Lockups with them, also
ISSI IS42S16320B-75TLI are not working
Samsung K4S561632-UI75 not working also


Seems I need more RAMs...😅

The samsungs are working fine for me... you probably have some soldering issues.

8 Bit Dreams wrote: 30 Sep 2021 17:58 Such a pity...
ISSI IS42S16320B-75TLI are not working

Where did you get IS42S16320B-75TLI ? Are they made up component suffixes from AliExpress?

64MB IS42S16320B-7TL are working fine here and display 128MB fine.

go0se wrote: 30 Sep 2021 19:19 Where did you get IS42S16320B-75TLI ? Are they made up component suffixes from AliExpress?

They are on the official Datasheet as Industrial Range.

Maybe 133mhz is just a touch too slow?

PaulJ_2.0 wrote: 30 Sep 2021 19:22

go0se wrote: 30 Sep 2021 19:19 Where did you get IS42S16320B-75TLI ? Are they made up component suffixes from AliExpress?

They are on the official Datasheet as Industrial Range.

Maybe 133mhz is just a touch too slow?

They're not on the official data sheet I'm looking at, I see 6TLI, 7TLI, 75ETLI but no 75TLI


Can you send me a link to the sheet you're referencing?

go0se wrote: 30 Sep 2021 19:37

PaulJ_2.0 wrote: 30 Sep 2021 19:22

They are on the official Datasheet as Industrial Range.

Maybe 133mhz is just a touch too slow?

They're not on the official data sheet I'm looking at, I see 6TLI, 7TLI, 75ETLI but no 75TLI

IS42S16320B.png

Can you send me a link to the sheet you're referencing?

If you check his picture, you can see his are 75ETLI

Sorry, there has been a little confusion here, I thought you were querying the 'I' part. I looked at his chip and the datasheet and confirmed they were there.

go0se wrote: 30 Sep 2021 19:19 Where did you get IS42S16320B-75TLI ? Are they made up component suffixes from AliExpress?

Oh, sorry, my bad, I mean IS42S16320B-75ETLI
Would be nice if they could work, these are very cheap, about 2$ for each, it's a good price for 64Mb ...

alenppc wrote: 30 Sep 2021 19:09 The samsungs are working fine for me... you probably have some soldering issues.

nope if I boot ATK from Gotek it shows no errors on RAM, however booting from IDE usually breaks up and activity LED stays on...

8 Bit Dreams wrote: 30 Sep 2021 20:41 nope if I boot ATK from Gotek it shows no errors on RAM, however booting from IDE usually breaks up and activity LED stays on...

Ok then it's a broken CPLD. I have no issues here whatsoever. I let it play softfloat Quake, frontier or anything else on a loop for days on end, no crashes. Try replacing the CPLD.