how to test for a faulty MB or CPU

  iqs 19:45 02 Aug 10
Locked

Hi,

Just wondering what the best procedure is for determining if the MB or CPU is faulty.

Cheers

  Fruit Bat /\0/\ 20:39 02 Aug 10

substitution

i.e. try the CPU in another "known good" motherboard

  keef66 11:12 03 Aug 10

Unfortunately it is that simple. Start with the cheapest component and work your way up. Once you've eliminated the power supply as a suspect (duff PSU's can cause symptoms that seem to point to other components), with older systems it is often cheaper / quicker / easier to replace the mobo / cpu / RAM with a pre-assembled bundle.

Then you'd need to repair install or clean install the operating system, and you could in theory have a problem validating an OEM copy of Windows.

  sunnystaines 11:46 03 Aug 10

take a very close look at the motherboard capacitors as these are the main item on the board when it goes. look for signs of leakage from them or burn marks, they will often smell burnt but the psu is normally the fault when you smell burning.

some handy troubleshooting charts
click here

info
click here

  iqs 09:24 04 Aug 10

thanks you all for the advice and links

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