is a socket 7 AMD K6-2 w/3D-Now 400-550Mhz compatible with a motherboard that has a socket 7 Pentium MMX/233?

AMD K6-2 uses lower power than Pentium MMX so you need a little converter (to Super Socket 7) if you canīt chance volt on the motherboard.

Check out http://www.danbit.com/kat2002/0911.phtml

/Henrik

if you can find one, a K6 III 400 vastly outperforms the K6II 550....

Prolly expensive too, I don't think they made a lot of those K6 III before they went to the K7. But yeah, great performance.

Probably not unless the motherboard is a newer Super Socket 7 board with 100MhZ front side bus. Older boards max out at 66 FSB and a 3.5 multiplier to give the maximum 233 speed of the pentium 1. Check out the manual.

Jimbo

This board is a PCchips M571
(www.pcchips.com)
It supports either P54C/P55C Pentium (MMX) CPUs with 321-pin ZIF socket and Cyrix/IBM 6x86L/6x86MX (M2), AMD K6, IDT C6 Processors with External Clock Speed at 50/55/60/66/75/83MHz
the CPU core voltage selectors range from 2.2V, 2.8V, 2.9V, 3.2V, 3.3V, 3.5V
the CPU internal clock speed selectors range from 1.5X/3.5X, 2.0X, 2.5X, 3.0X, 4.0X, 4.5X, 5.0X, 5.5X

will it be compatible with an AMD K6-2?

Yes up to 450 MHz. It might just identify it as a k6. as long as you get the speed and voltage set right, it will be no problem

i just found out that my motherboard supports minimum 2.5V instead of 2.2V
what's the voltage rating of the K6-2?
what bus speeds will it work with?
what website can i get more info on CPU details and how to set them?

Most K6-2s need 2.2 core voltage, although there were some 400 or 450s at 2.4v.
amd.com still has all the specs etc on the K6-2s and K6-IIIs.

http://www.amd.com/us-en/Processors/ProductInformation/0,,30_118_1260_1217,00.html

http://www.amd.com/us-en/Processors/ProductInformation/0,,30_118_1260_1217^1101^1102,00.html

An excellent super 7 board, is the Tyan S1598 (Trinity ATX). You can find these on eBay. I just built a comp for a friend using hand me down parts, including that board and K6-2/500. I had a Tyan S2380 (Trinity K7) slot A board that was giving me fits with mandrake linux and the bios had problems seeing my dvd and cdrw drives (new ones).

You can find both K6-2 and sometimes k6-3 on eBay. Don't get the k6-3+, as it is a mobile processor with less functionality, and the mobo may not recognize it.

Take care and good luck!

Charles

I am upgrading my Socket 7 mobo with a K6-III/400 MHz, but not without an adapter from Powerleap.Com. The adapter supplies both the correct core voltage and the 6x multiplier necessary for 400 MHz. I upgraded a previous Socket 7 machine with PowerLeap's Intel 233 w/MMX and was very pleased. I think the AMD will be an even more powerful upgrade to a Socket 7 mobo.

you get the 6x multiplier from setting the actual multiplier at 2. just like the P233 MMX uses 1.5 as 3.5.

running 3*66MHz gives 400MHz.
btw, K6-IIIs are still available and also the most sought after cpu for socket-7 ever, the k6-III+ !!!!!

http://www.pricewatch.com/1/3/1738-1.htm