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Thread: GA-EP45-DS3R reboot loop




  1. #1
    Join Date
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    Default GA-EP45-DS3R reboot loop

    FYI: I tried a search and couldn't find anything that matched my exact problem.

    I went to bad last night with my computer working perfectly. I woke up this morning after a Windows Automatic Update and my computer was crashing programs left and right (Google Chrome and Left 4 Dead mostly) so I assumed that the update had caused an issue. I ran a System Restore to the checkpoint right before the update and now everytime my computer reboots it will complete the POST (speaker beeps single short), reads the CPU, shows Mem and then reboots. Generally, the next line that would show would be Memory: 4xxxxxxxx bytes and the speed but it fails to make it that far. I tried clearing the CMOS (and now I can't see the POST due to the splash screen) but that was a no go. I can NOT enter the BIOS, Flash utility, restore utilty or any other utility as the computer fails to make it that far. I've unhooked all peripherals except for the video card and have removed all memory except for a single 1GB stick. I've tried all the RAM in different slots but the same error occurs which leads me to believe it's not the memory or any peripherals. My guess is the mobo or CPU but generally when a CPU fails you won't even complete POST so I'm leaning towards the mobo.

    Any ideas because I'm out of them. The computer has been been running perfectly stable for 2-3 months (new build) and just failed last night. All parts are brand new except for my RAM which is about two years old. Any help would be appreciated.

    SPECS
    Motherboard: GA-EP45-DS3R
    CPU: Intel E8500 E0 core

  2. #2
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: GA-EP45-DS3R reboot loop

    Please try clearing your CMOS with my method posted in post #2 here >>>
    http://forums.tweaktown.com/f69/bios...h-guide-27576/

    If no luck, PM me for Last resort method before you have to RMA the board

    If you can, please test your ram in another machine one stick at a time to be sure it is OK

  3. #3
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    Default Re: GA-EP45-DS3R reboot loop

    I found the answer to my problem and you're going to love it.

    Sometime between midnight and 9AM CST something caused part of the BIOS to go bad. The reboot loop is what happens to Gigabyte mobo's whenever this happens. I'm not going to say it was the Windows Update (how the hell would that affect the BIOS?) but whatever it is caused me major heartache.

    I had to remove the lithium battery and jumper the CMOS for approximately two hours. After that, I had to go find a PS/2 keyboard because the USB keyboards wouldn't be recognized yet. If you have a PS/2 keyboard then holding insert on power up causes the BIOS to reflash itself back to the factory state. I was able to hold insert, press delete to go to the BIOS settings, and then load the optimized defaults.

    How weird is that?

  4. #4
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    Default Re: GA-EP45-DS3R reboot loop

    You may need some voltage adjustments at MCH core, i have the exactly same motherboard, to get stable with 4 dimms and 400FSB, i'm using 1.26v at MCH, a little far away from it's default, 1.1v.

    Thanks to that little adjustment, there's no reboot loop here anymore.

    I hope that help, regards, André.

  5. #5
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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