Cyrix 6x85MX bug causes lockups?

rea30

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Aug 31, 2002
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I have an old box with a Cyrix 6x86MX PR233 processor in it and it locks up all the time and/or reboots itself and/or gets blue screens. If I put an old Pentium 120 processor in it, all is well. I want to use the Cyrix cause it's faster. I have read about a bug called "coma bug" in some of the Linux postings and they have some startup files for Linux that make changes to the processor register so it will work. Question: Does anyone know of a program that I can run when my Windows XP starts to do the same thing? I'm sure there is a way to do this. I am not a programmer but knowledgeable on PC's. If I were to perform this mod and still had problems, I would assume that my Cyrix processor was defective. The constant crashing renders the system useless.

thanks in advance for any leads,
Robert
 
I don't think that XP was really designed for the Cyrix 6x86. If you have it try 98se. How long does it take to load XP, 2 hours? There was a patch in the past for windows and Cyrix CPU but that was like 4 years ago.
 
Actually, it only takes a couple minutes to start XP. It's our old spare PC and I want to be able to run other windows OS's on it and use it for projects. As it is, it crashes with 95,98,2K or whatever is on it. Any ideas where this patch might be got?

thanks in advance,
Robert
 
All Cyrix processors are defective. I think the actual speed of the PR233 is either 150MHz (75x2), 166MHz (83.3x2), or 188MHz (75x2.5). And they run hot.

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