Mobo supports K6-2 333 & 366 but not 350 ?!

[shane418]

I have an Amptron 9600 B mobo. It supports a K6-2 300, 333, or 366 w/ a BIOS upgrade, but not a 350. Tech support said it won't run because the 350 has a 100 mHz bus speed. Others tell me it will, but no luck so far. Isn't there a clever solution to this problem?

[bharn]

Sure it will!! Get the 350 and set your system just like it's a 366. Sure its a little higher than the rating but should not present a problem if you have any sort of decent fan/hs combo. You're going to miss out on all the performance gains of a 100MHZ bus though.

[Mntsnow]

Shane,

I too have a "old" amptron 9600 mobo sitting in my closet now. as the Amptron techs told you the 350 K6-2 chip is a 100mhz chip. You can run it at a lower FSB but why? you would be giving up performance....If you already have a 350 chip but dont want to buy a new board that supports 100mhz then run it at the lower FSB or get the 300 or 333 (66mhz) chips (listed as "AFR-66" on the face of the chips) as they are supported by your board..or try it at the 366 settings (should work fine http://www.sysopt.com/forum/wink.gif )

Good luck

Mntsnow

ps..I now run my K6-2 350 on a Epox MVP3G-M mobo @ 448 (4x112 @2.4volts)

[This message has been edited by Mntsnow (edited 06-25-99).]

[Peter M]

Hi people!

A good match for a 83 MHz capable board, like the PM9600, are the 333 and 380 MHz processors, run at 83 MHz 4.0x (333 MHz) or 4.5x (375 MHz) respectively.

With the 333 MHz K6-2 becoming increasingly unavailable, the trick is to use a 350 instead and run it slower. As long as you don't exceed a given processor's core and bus frequencies, all is fine (like when using a 350/100 at 333/83). You should not use a 333/66 at 333/83, it might not work at all. The more usual 333/95 will be OK, and so will a 380/95 at 375/83.

btw, the latest BIOS for the PM9600 is at ftp.pcchips.com.tw/BIOS.

Regards, Peter

[philipg]

Peter Missel,

You say "As long as you don't exceed a given processor's core and bus frequencies",

My question is why does my K6-2/333(66) run only at both 66 and 100 mhz bus. I have it clocked at 100x3.5 instead of 66x5 and it runs better. Only thing is that now when I put back the 66 bus on it doesn't seem to run right. Maybe I'm use to the higher speed it at now.

What do you think about this.

[shane418]

Thanks for the help guys. Sure enough it's compatible with a K6-2 350. I got it running (underclocked 300 mHz) and installed Win95, but the sorry piece o' **** board went out with a puff of smoke the next day. I'll buy an FIC mobo next time.