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First post, by Nexxen

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I wanted to buy some L2 cache and was going through my notes.

Can't find any model (alixpress).

I'm looking for 28 dip (and 32 for 128kb?) 15ns (or less but I guess difference is in price more than performance):

1) 32kb
2) 64kb
3) 128kb

Any suggestion for models to look for?
I tried the ones I have but they come at bomb prices + VAT. (5€ a piece of 32kb).

Thanks for your help.

PC#1 Pentium 233 MMX - 98SE
PC#2 PIII-1Ghz - 98SE/W2K

Reply 1 of 4, by mkarcher

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Nexxen wrote on 2022-11-17, 14:39:

Any suggestion for models to look for?
I tried the ones I have but they come at bomb prices + VAT. (5€ a piece of 32kb).

I checked ebay for "32k x 8 sram 15ns dip", and I get a lot of hits for 2€/piece to 3€/piece including VAT. Model numbers are W24M257AK-15, Em51M256A-15P, IS61C256AH.
I also got some near misses, like this 64k x 8 SRAM: UM61512AK-15.

Reply 3 of 4, by Intel486dx33

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Save you time and MONEY.

You really don’t get much of a Performance boost by increasing cache.
At most maybe 3% to 5% Performance boost.

Where you really will get a performance boost is by changing out the CPU.
If your CPU is already Maxed out then I would try an Overdrive CPU Upgrade.
The Only Overdrive CPU Upgrade I find worth your MONEY is a Pentium Overdrive CPU.
Other wise don’t even bother. But then it’s not a 486 computer any more but a Pentium computer.
But by disabling Cache in bios you can slow down the Pentium to a 386 or 486 speeds so that you can play CPU speed critical games like “Wing Commander”.

Reply 4 of 4, by Nexxen

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Intel486dx33 wrote on 2022-11-17, 19:53:
Save you time and MONEY. […]
Show full quote

Save you time and MONEY.

You really don’t get much of a Performance boost by increasing cache.
At most maybe 3% to 5% Performance boost.

Where you really will get a performance boost is by changing out the CPU.
If your CPU is already Maxed out then I would try an Overdrive CPU Upgrade.
The Only Overdrive CPU Upgrade I find worth your MONEY is a Pentium Overdrive CPU.
Other wise don’t even bother. But then it’s not a 486 computer any more but a Pentium computer.
But by disabling Cache in bios you can slow down the Pentium to a 386 or 486 speeds so that you can play CPU speed critical games like “Wing Commander”.

It's all maxed out, even 386. 286 I don't wanna spend on those adapters/interposers like CpuGalaxy and Atheatos (IIRC) talked about.
It's just to test and benchmark, the annoyed kid business - 🤣
I had notes on currently sold chips but I can't find it.
Thanks for the advice though, I now know what to expect when upping the cache.


Thanks so far ppl 😀

PC#1 Pentium 233 MMX - 98SE
PC#2 PIII-1Ghz - 98SE/W2K