Hmm I never scane one of thoses before

Just some simm. Not really worth to spend too much time thinking about them. Just plug them in your board and see if they work for you. I have a whole bag of these. there's prolly like a 100 different types, brands and flavors of these around.

hi

i think the product is an SMti TM124EU9B
and not D as you mention.

that device is 1MX4 -60/70nS SIMM
according to google groups:

http://groups.google.com/groups/search?hl=en& … s=Search+Groups

bye!

fronzel wrote:

Just some simm. Not really worth to spend too much time thinking about them. Just plug them in your board and see if they work for you. I have a whole bag of these. there's prolly like a 100 different types, brands and flavors of these around.

I tested them in a 386 mobo without success (cannot test them on other mobos at this moment).

anyway, i've never seen simms with this chip configuration (except SDRAM ECC ones) I'm curious... 🤣

sklawz wrote:

hi […]
Show full quote

hi

i think the product is an SMti TM124EU9B
and not D as you mention.

that device is 1MX4 -60/70nS SIMM
according to google groups:

http://groups.google.com/groups/search?hl=en& … s=Search+Groups

bye!

Great, thanks for the info, may be last letter is only a version revision, but it's a D, I'm sure. mystery solved. Thanks mates.

Hello ! I cannot find the information about this SMM (72 contacts) and also no info about the chips. Could you please help me. Thanks

jnemo2004 wrote on 2023-07-27, 16:15:

Hello ! I cannot find the information about this SMM (72 contacts) and also no info about the chips. Could you please help me. Thanks

Can't help you with the chips but the diodes would suggest the chips are 3V3 instead of 5V. Not sure how well these would work in a standard PC (depending on the mobo might not be stable, or require slow timings even if they seem to be 60ns).

Deunan wrote on 2023-07-27, 16:40:

jnemo2004 wrote on 2023-07-27, 16:15:

Hello ! I cannot find the information about this SMM (72 contacts) and also no info about the chips. Could you please help me. Thanks

Can't help you with the chips but the diodes would suggest the chips are 3V3 instead of 5V. Not sure how well these would work in a standard PC (depending on the mobo might not be stable, or require slow timings even if they seem to be 60ns).

OK, thank you. I have checked the SIMM in three mobos but It does not work in none of them.

jnemo2004 wrote on 2023-07-27, 18:58:

Deunan wrote on 2023-07-27, 16:40:

jnemo2004 wrote on 2023-07-27, 16:15:

Hello ! I cannot find the information about this SMM (72 contacts) and also no info about the chips. Could you please help me. Thanks

Can't help you with the chips but the diodes would suggest the chips are 3V3 instead of 5V. Not sure how well these would work in a standard PC (depending on the mobo might not be stable, or require slow timings even if they seem to be 60ns).

OK, thank you. I have checked the SIMM in three mobos but It does not work in none of them.

You need a pair of then or will not work
it's very possible this could be a special purpose memory like cache module or it was meant for a different CPU architect and I don't think this is for a Mac and it doesn't look right
But based on the 1st 2 letters WT I do believe it stand for windbond technologies

jnemo2004 wrote on 2023-07-27, 18:58:

OK, thank you. I have checked the SIMM in three mobos but It does not work in none of them.

What kind of mobos? For Pentium you need 2 sticks (since the CPU has 64-bit data bus). For 386 and 486 one stick is enough but these might be EDO not FPM (if 9934 is date code then 34 week of 1999 is quite likely to be EDO). Only some 486 mobos support EDO memory.

Deunan wrote on 2023-07-27, 19:42:

jnemo2004 wrote on 2023-07-27, 18:58:

OK, thank you. I have checked the SIMM in three mobos but It does not work in none of them.

What kind of mobos? For Pentium you need 2 sticks (since the CPU has 64-bit data bus). For 386 and 486 one stick is enough but these might be EDO not FPM (if 9934 is date code then 34 week of 1999 is quite likely to be EDO). Only some 486 mobos support EDO memory.

I have checked it in socket7 (Pentium) mobos. I have not other simm like this, therefore I have not a complete pair. I have checked it with several simms. I tried to find information just to check it a most similar one but i cannot find any. It is very, very, rare about not to find info of the complete simm but also not of the single chip. Therefore I do not know anything about this simm.

Thank you.