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Dell wont work with MMX CPU's anymore

By Computechie ·
Hi all,
I got a old Dell GN+ that was on it's way to the trash because it didn't work anymore. I brought it home, did a little troubleshooting, and tried swapping the CPU, the original was a 233 MMX, and I swapped in a 166 non-MMX, and the machine started working. I tested the 233 out of the Dell machine in another machine, and the CPU works great. I also tried swapping in a known-good 233 MMX out of another machine into the Dell, and it refused to boot. I was wondering if anyone had seen thison a old Dell, where it all the sudden wont work with a MMX cpu, but works great with a non-MMX? I've already looked through the BIOS for any settings that might have been messed up, found nothing out of the ordinary, and reset the BIOS to make sure, but nothing seems to make the MMX CPU's work.

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Dell wont work with MMX CPU's anymore

by PhiltheGreat In reply to Dell wont work with MMX C ...

The chipset may be the problem.
Some old chipsets do not support MMX.
What is your chipset?

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Dell wont work with MMX CPU's anymore

by Computechie In reply to Dell wont work with MMX C ...

As I stated in the question, it supports MMX because it originally came with a P233 MMX CPU. But now it will not work with a MMX processor.

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Dell wont work with MMX CPU's anymore

by Computechie In reply to Dell wont work with MMX C ...

Point value changed by question poster.

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Dell wont work with MMX CPU's anymore

by Macros In reply to Dell wont work with MMX C ...

Yes this is true. You might consider a BIOS flash too.

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Dell wont work with MMX CPU's anymore

by Computechie In reply to Dell wont work with MMX C ...

Poster rated this answer

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Dell wont work with MMX CPU's anymore

by Computechie In reply to Dell wont work with MMX C ...

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