Upgrading CPU

[Guest]

I have a shuttle hot-557 rev 1.5. It is currently running a cyrix 200 cpu and it locks up occousionally. It has been doing this a long time. I want to change the cpu to an AMD 233 which is the highest this motherboard will support. I deleted all of my devices in device manager and put in the new cpu and changed all of the settings per the documentation.

Here comes the problems
1) On boot my bios says the clock is at 266 not 233. This board should only go to 233 max.
2) as windows starts to boot it gets all kinds of errors and since this was a couple of weeks ago I'm not exactly sure what they were. I hknow one was that the registry was being restored.

I remember years ago when I upgraded my motherboard and cpu together someone suggested I delete an entire branch of my registry and lets windows re install everything. I can not remember which branch of the registry that was.

Can someone tell me which one that is.

Do you all think that will help or does this only apply when you change the mobo?

TIA
Steve

 

[kief]

best advice: format and reinstall windows from scratch!

Jesus saves, but Mario scores!!!

 

[khha4113]

On boot my bios says the clock is at 266 not 233.

I think (although I'm not sure, it has been too long) your board somehow was set FSB jumper at 75MHz when AMD 233 Default FSB is 66MHz and its Multiplier is 3.5 (75*3.5=266) or its multiplier's jumper is set at 4 instead of 3.5 (66*4=266). I also think it's your problem since your CPU overclocked and your HSF can't handle heat (I know how hot these AMD K6 would run).
Check its manual to see if they set at right FSB and Multiplier.

Good or Bad have no meaning at all, depends on what your point of view is.

 

[Guest]

This board does not have a 75mhz. The clock is currently set at 66*2 I think. (I know it is below 200 The cyrix 200 does not really run at 200mhz) The highest this board should go is 66*3.5 = 231 So I don't think that is the answer but I will double check.
Thanks

 

[kief]

it would be 66.66666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666 * 3.5 ~ 233

In any case in addition to the common knowledge that Cyrix blows a$$, you want to make sure that you have a good heatsink/fan....the K6-233 chip was one of the hottest running they made. The 200 wasnt bad and the 266 wasnt bad either due to a design change, but the 233s got SMOKIN HOT!

Here is something to try, short of a heafty hsf...UNDERCLOCK the chip to 200 and see if that runs stable or not =) If it does try a better hsf....

Also if BIOS says 266 its prolly running that fast, which means that the ALREADY hot chip is really hot!

Jesus saves, but Mario scores!!!

 

[Crashman]

YOu should be able to use a K6-2 450! This board DOES support a 75MHz FSB according to Shuttle <A HREF="http://www.spacewalker.com/english/faq_e/557.htm" target="_new">LOOK!</A>

The page I presented includes links to configuration settings for both revisions of the motherboard, and even the oldest one supported voltage all the way down to 2.5v and 75MHz bus speed support.
To get a K6-2 to run 450MHz, use the 2x multiplier and the 75MHz setting, the K6-2 converts 2x to 6x, and 6x75=450!
Yes, you can run the processor "hot" at 2.5v, I have several running 2.8v! Just use a good cooler, any Socket 462 Athlon cooler will probably be more than enough, and they do fit Socket 7 as well.

What's the frequency, Kenneth?