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Thread: GA-EP45-UD3P locks with Q9400 CPU

  1. #11
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Jan 2008
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  2. #12
    Join Date
    Oct 2009

    Default Re: GA-EP45-UD3P locks with Q9400 CPU

    Quote Originally Posted by bmcent1 View Post
    The board is new and had the FB version of the BIOS on it already, which I think is the latest (I checked Gigabyte's support and there was nothing newer than FB.)

    I've sent the CPU back already. I don't have another mother board I can test in.
    Just wanted to post a follow-up -

    I RMA'd my Q9400 that would lock up immediately after successful POST.

    Received the replacement Q9400 yesterday. The new processor works great, no BIOS update needed, or anything tricky. So 90% sure it was just a bad CPU... doubt that happens often.

    I also switched to DDR2-800 (from DDR2-667) at the same time, so there's a little chance that helped something out. But the old memory was thoroughly tested in Memtest.

    New system made it through 3 passes of Memtest with no increase on DRAM voltage. Also made it over night with 4 Prime95 torture test threads burning i the CPU.

    Very happy with the system!

    Thanks again for the links and advice in this thread.

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