Processor in bad motherboard?

praefectus
praefectus used Ask the Experts™
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If my motherboard is fried, and I put a new processor in it, will it fry my new processor?  Will a friend processor ruin my motherboard?  
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Commented:
Unknown!  It depends on what is wrong with the motherboard.  I would recommend AGAINST it!

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Commented:
So, then how do I know if I should replace just the processor or MB, or both? ;-)

Commented:
How did this problem happen?  The term "fried" bring images of smoke and acrid smells.  Is this the case?  Or is this just a "dead-on-arrival" situation?

Please be detailed about what you know.
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Commented:
DOA -- nothing boots.... I have done EVERYTHING there is to do to make it work... rebuilt the system from scratch, re-seated the processor, new power supply, new CMOS battery,  etc... Motherboard seems to have power (diagnostic light says something is wrong with processor), juice gets to the PCI slots and the HDD... no juice to the CD ROMS (power supply plugs directly to them, but they still don't turn on)...

I'm down to processor or motherboard.... I don't want to get the newest stuff, because then I'd have to upgrade everything (memory, processor, motherboard, etc...) -- I'm trying to do it as cheaply as possible, as I'm a poor sucker. ;-)

Which way is best to throw the dice?
Commented:
It's VERY unlikely that a BAD CPU will damage a good motherboard.  

I'd suggest trying your suspect CPU in a known good motherboard.  If that checks out, then you probably have a bad MB.  

If it doesn't work, then I'd say it's safe to try a replacement CPU in your motherboard.

Commented:
>>earned 100 Expert points and have been rewarded with a grade of C.

Thanks for NOTHING!  I'll remember NOT to try and help you again.

Commented:
>>Last 10 Grades Given C C

In fact, this seems to be your standard practice.

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