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Thread: Infinite Reboot Loop after (Bad) BIOS Flash on GA-EP35-DS3L

  1. #1
    Join Date
    Jan 2010

    Default Infinite Reboot Loop after (Bad) BIOS Flash on GA-EP35-DS3L


    first my Specs:
    Core 2 Duo E7200 @ 2.53GHz
    4 GB Kingston DDR2 800
    Radeon HD4850

    Today I tried to update the BIOS for my MOB. Previously I had BIOS F4 and I tried to update it to F6 using Q-Flash. The new BIOS file was downloaded directly from the gigabyte site. I created the floppy disk with the autoexec, the flash-utility and the BIOS-file. I rebooted, got into Q-Flash through F8 in BIOS, and flashed it. Everything went fine. After the process the system rebooted, and instead of the POST screen, there was something like this: "BIOS is auto-recovering". The process finished and it rebooted. After that it got stuck in an infinite reboot loop. I don't even get the POST screen. It doesn't try to read from either the floppy nor the CD drive, so no chance to reflash the bios. I also tried removing all but one RAM, tried different combinations. Also disconnected CD drive and all HDDs. Did clear CMOS per jumper and also removed battery for 5+ hours. Nothing helped. The only thing I can think of I could have done wrong is, that I cleared the CMOS before the flash, because I wanted a clear install, but I dind't load optimized defaults before flashing. But even the manual just recommends the loading after the flash, so it shouldn't be a requirement for a successful flash.
    That's everything I remember trying. Any suggestions or is my MOB just a brick?

  2. #2
    Join Date
    Aug 2009
    Birmingham,Great Britain

    Default Re: Infinite Reboot Loop after (Bad) BIOS Flash on GA-EP35-DS3L

    try leaving battery out overnight as it might need 12+hours to fully clear
    Gigabyte z77x UP4-TH F11c Modded Bios
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  3. #3
    profJim's Avatar
    profJim is offline Chief Munchkin + moderator
    Join Date
    Dec 2008
    Tacoma, WA. [USA]

    Default Re: Infinite Reboot Loop after (Bad) BIOS Flash on GA-EP35-DS3L

    Power off your system
    Turn off your psu using its on/off switch
    Unplug the psu power cable
    Remove your mobo battery
    Press and hold the front panel on/off switch for 10 - 15 seconds
    Install a jumper block on the CLR_CMOS pins
    Let your system sit for 12 hours or longer

    Sometimes the system will finally boot after 5 - 10 reboot loops.

    Good luck
    Q9650 @ 4.10GHz [9x456MHz]
    P35-DS4 [rev: 2.0] ~ Bios: F14
    4x2GB OCZ Reaper PC2-8500 1094MHz @5-5-5-15
    MSI N460GTX Hawk Talon Attack (1GB) video card <---- SLI ---->
    Seasonic SS-660XP2 80 Plus Platinum psu (660w)
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    CyberPower CP1500PFCLCD UPS
    E6300 (R0) @ 3.504GHz [8x438MHz] ~~ P35-DS3L [rev: 1.0] ~ Bios: F9 ~~ 4x2GB Kingston HyperX T1 PC2-8500, 876MHz @4-4-4-10
    Seasonic X650 80+ gold psu (650w) ~~ Xigmatek Balder HDT 1283 cpu cooler ~~ Cooler Master CM 690 case (RC-690-KKN1-GP)
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    HT|Omega Striker 7.1 sound card ~~ Asus VH242H monitor [1920x1080] ~~ Logitech Z-5500 Digital 5.1 Speakers
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