Cpu killing system?

Im updating my mother's computer with an older core 2 quad which i found. All went good when i placed the cpu and ran windows. But after 2-3 minutes it gaves me various bluescreens and crashes. Then i giced a try to windows 7 where it booted well and after it gaved bluescreens too. Did a restart and the windows didnt boot because the kernel wanst found (whaaat?). Then rebooted and system hanged at bios screen, it wouldnt even boot or enter in bios.

CPU: Old: core 2 duo e6600,
New:Core 2 Quad q8200

Motherboars: Asus p5b deluxe.

Some help maybe?
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  1. Unless the BIOS is at a revision lower than 1238, I'd presume there's an issue with the Q8200.
  2. GhislainG said:
    Unless the BIOS is at a revision lower than 1238, I'd presume there's an issue with the Q8200.

    Right now im doing memtest to see if ram has problems.Trying the cpu in linux should be a good test?

    Also, it says next to the Q8200 "beta support FSB1333". I suspect they're not guaranteeing 100% compatibility, even with a proper BIOS update.

    Maybe one of the other quads that doesn't have the "beta support" note might work better?
  4. It seems that doing an fresh win 7 install with no drivers its stable. Running prime95 and no problems
  5. If your bios is not at 1238, use the old E6600 to update the bios.

    As a caveat, motherboard sockets are certified only for up to 15 insertions; minimize the number of times you change processors.
    In addition, inserting a processor can be tricky, it is easy to bend socket pins, causing all sort of mysterious problems.

    Regardless, I think there are better upgrades for the pc. The Q8200 has 4 threads vs. 2 for the E6600, but the capability of each thread is essentially the same.
    For normal desktop operations, which are mostly single threaded, you should see little difference.

    What would make a big difference would be to convert the windows C drive to a ssd.
  6. I think i made it stable by underclocking it at 2.2ghz and installing an old graphic driver for the gpu. Maybe the cpu was underclocked before i bought him. Thanks for help!
  7. Best answer
    That makes little performance difference, but if the CPU is good and the BIOS is 1238 or newer, then it could be overclocked to gain performance.
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