939 or 754 pin CPU. 11

On Thu, 28 Jul 2005 22:05:52 GMT, "Donald McTrevor"

According to the linked picture, your board has a switching regulation circuit. This is important for having margin to run faster CPUs. Unfortunately the SIS chipset isn't so fast for that era and didn't support 100MHz FSB, BUT you can still run a K6-2-400! Any newer K6-2 (400MHz and up should be chosen, doesn't have to be "400", could be 450, 500, 533, regardless of the fact that it'd spec'd for 100MHz FSB. When your board is set to 2X CPU mulitplier, the newer K6-2 CPUs will interpret it as a 6X multiplier automatically, so you'd have 6 x 66.6MHz = 400MHz. That is the best choice for your motherboard. Set it to 2.2V vcore. The older K6-2-400 models used 2.4V, seek one with 2.2V spec. Just

They only spec'd the CPUs available at time of writing and that supported the 66MHz FSB. Fortunately AMD designed later K6-2 to enable the 6X multipler using same mulitplier selection pins so no support for it is necessary on any motherboard. Since your board mentions *any* K6-2 support, all of them would work. It is less likely a K6-3 would work, it is possible but probably not work the hbuttle of trying it and failing.

Cyrix CPUs made decent business systems because they had dismal floating point performance but far at integers. Even question is whether it's worth the bother to do the upgrade today since modern systems are SO much faster. Only you can make that call.