Rebooting Problem with Q6600

I have a Q6600 OC'd to 3.2Ghz and DDR2 1066 Ram. I'm using the Gigabyte UD3P board as well. My power supply is 750W Corsair along with a HD 4890 GPU.

Recently, I'm having a serious problem with my computer either failing to post three times before startup and/or making it to the Windows login screen and then restarting. I have had my computer at 3.2Ghz for a while and had run tests to make sure it was stable. The memory would never work at 1066 speed so I had it clocked down to 800. Should I lower the memory down to 667 speed? I'm clueless as what to do. I lowered my clock to 3.0 on the cpu and the problem persisted.

Thanks for any help you can give.
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  1. Well, you have a gigabyte UD3 series! Go into your BIOS and save your current BIOS settings to CMOS.

    Then, load the fail-safe settings.
  2. What do you mean? I can get it to eventually turn on again. My problem is I want the problem to go away. Meaning I want the constant rebooting and errors to go away, but I don't know how to solve them. I am not sure its the overclock.
  3. Did you test with Prime95 and Small FFT test(this should error before a crash)? it stresses the crap out of the cpu, use blend AFTER to make sure both cpu and ram are good.

    Sometimes, you need a bit more voltage to the cpu. If you have 4 stick of memory, add 0.1 volts to the recommended voltage(very few sticks do 1066 @ 1.8 volts).

    EDIT, With the OC off, you can see if its a OC issue or not. Also make sure you have the latest bios
  4. Thanks for the reply. How do I update the bios? I don't have a floppy drive (I think that is one way?). I've never updated the bios so that could be a problem. I did stress test the system for about 8 hours with Prime95. I know thats not "technically" long enough but it ran fine for months. This just started happening recently. My RAM is rated for 2.0-2.1 Volts. I currently have the CPU and RAM voltage set to Auto so I'm not sure what its hitting, thats why I havent messed with it.
  5. With a gigabyte board you can download the bios to a fat32 formatted flash drive and flash it from within the bios itself.

    Save the bios file(if its a .zip thing, make sure its unzipped) to a flash drive (has to be in fat32)
    Reboot with the drive still in the usb port.
    Enter the bios with DEL then select Q-Flash from the bios screen or press END on post to enter the Q-Flash utility.
    Select your bios file to flash and it should start the flash

    If your issue did not happen at the start, i would guess its not a bios thing. Still loading fail safe never hurts.
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