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Old 20th March, 2005, 02:42 AM
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You have some sort of PCI CPU card? If you have it lying around, try it.

But I was thinking more along the lines of a P233 MMX, or maybe a K6-2 or even a K6-3. The slot is for a COAST stick, where you could add an additional 256k of L2 memory cache.

What CPU you can run mostly depends on the core voltage. I've a couple of old PCChips cheapy 430VX motherboards that I was able to run a K6-2 at 400 MHz in. I think they only went to 2.5 volts, which was overvolting the K6-2 350 I put in it. But I needed it to run at 400 anyway.

The 430 was very picky about the SDRAM it would run, so more EDO is your best bet. Only certain 64 meg SDRAM sticks would work, and nothing larger than that. I ran 128 megs of EDO in the PCChips board. The cacheable memory limitations of the chipset can cause you to lose performance if you run more than 64 megs. This is where a K6-3 would come in very handy. If you picked up a 2.4 volt K6-3 400, you could run it at 6x66=400 (the K6-2/3 interprets a motherboard clock multiplier setting of two as six). The on die L2 memory cache overcomes the chipset cacheability issue, allowing you to run more memory without the performance loss. K6-3 400 CPUs are very cheap on Ebay these days. And K6-2 350s and 400 are very cheap. And some of those VX boards could be run at 75 and even 83 MHz, allowing for 450 and 500 MHz.

You might be able to find a patched BIOS that would allow you to run a large harddrive here, http://wims.rainbow-software.org/ .
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