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Hypothetical situation involving a "bad" CPU

 
 
Gabriel
 
Reply Sat 19 Feb, 2005 11:49 pm
What are the symptoms of a bad CPU?

Or more specifically: Can a CPU be "partly" bad? Is it possible to install and run Windows successfully with processor that is flawed or broken in some way?

I've got a system I've been trying to troubleshoot. It hangs during Windows XP startup / bluescreens with a memory dump. Obviously, there are plenty of things this could be, but I've tried swapping out damn near everything (including mobo, PSU, RAM, HD, etc,). The CPU seems to be the only common element. Not even common cables at this point.

Assuming I can get Windows to run for a time again (it doesn't always choke on startup), is there a software package that can run a CPU through a gamut of tests to find the fault?
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Algis Kemezys
 
  1  
Reply Mon 21 Feb, 2005 07:27 am
This is such bullshit. How could you mess up your CPU unless you tried to crunch to many numbers or caught a hackers flu.

If simple rebooting the whole system by putting back in the original programs, to solve this delimma, than i would be lost too.
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Gabriel
 
  1  
Reply Mon 21 Feb, 2005 10:37 am
So are you saying that if the CPU works at all, it must work completely? That's what I'm trying to determine.
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Francis
 
  1  
Reply Mon 21 Feb, 2005 10:43 am
Re: Hypothetical situation involving a "bad" CPU
Gabriel wrote:
Can a CPU be "partly" bad? Is it possible to install and run Windows successfully with processor that is flawed or broken in some way?


Yes, I've seen it once! At first, all other parts were changed, not to speak of Windows. Still there were problems, blue screns and so on.

But it was magic when we changed CPU. Everything was OK!
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timberlandko
 
  1  
Reply Mon 21 Feb, 2005 06:32 pm
A faulty CPU - even a good CPU insecurely mounted - could and would present precisely the symptoms you describe. Its worth a shot to make sure its securely seated and that the power connectors are clean and tight ... but CPUs do fail (I've even seen 'em "bad outta the box"), and they can fail in a variety of ways for a variety of reasons. Inabillity to complete a successful boot is a pretty good indicator of a hardware problem if you've ruled out the software (includin' the BIOS) and determined the memory and other internal hardware all is OK, your attention rightly should turn to the processor - they're products of humans, they fail. Overclockin' is a great way to find out about that. There are plenty of other ways to screw up a processor too; just plain age and simple physical shock, thermal or kinetic, can do one in.
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Gabriel
 
  1  
Reply Mon 21 Feb, 2005 11:02 pm
Thank you!
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Monger
 
  1  
Reply Tue 22 Feb, 2005 03:52 pm
One thing you could tryr is stepping down your CPU a bit to run at lower speeds. If things work then, the CPU e.g. could've been remarked before you got it. If it was purchased as a boxed product you may still be able to use the Intel or AMD warranty on it. That is, if the CPU really is what's at issue here.
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