recover a dead mobo

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  • silver310
    New Member
    • Jun 2012
    • 1
    • israel

    #1

    recover a dead mobo

    hey everyone, new to this forum.
    So i have this old build i decided to fire up to use as an HTPC in the living room.
    the mobo is a GA-8N-SLI Quad Royal http://www.gigabyte.com/products/pro...px?pid=1957#ov
    after days of trying to get the pc to boot i finally got it, all thanks to a dry contact cleaner, spray that everywhere and it boots! haha.
    ran some HDD/mem tests and everything was working great exept one ram stick, so i just didn't use that one.
    then i updated the bios, main bios updated without a problem, so i chose to boot from beckup bios via Q-Flash so i can update that one too, and here is when the problem begins, after restarting the pc it just won't boot via beckup bios.
    turned on the pc and waited for 1 hour, no boot, no beep or visual on screen.
    i cleard/earesed CMOS by removing the batter (witch was dead i think, bios didn't save any setting whenever i turned off the psu) also via the 3 pins by changing the jumper from 2-3 to 1-2 pins.
    right now the mobo is turned on with nothing but the cpu in it, and still nothing, not even a beep.
    Also tried forcing bios recovery with some tricks i read online by holding the power button etc, didn't help.
    I'm a computer technician in a PC store so i know what i'm doing, what i don't know is if after clearing cmos does the mobo reset it self to boot from main bios? or does it stay on the beckup one, i read somewhere that i can enable/disable the bios chips by shorting out 2 pins, but every guide i read says something different, my bios chip is a SST49LF004B http://pdf1.alldatasheet.com/datashe...33-4C-NHE.html

    anyway any help would be great, that build was my first ever pc i got with my own money and build myself, so if i can revive it i would be super happy.

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