Hi. Have a PC with about 8 years of field use that will not power on and post. Motherboard is Gigabyte GA-990FXA-UD3 with AMD AM3+ CPU.
Have replaced the power supply; removed and reseated the CPU; removed the RAM; removed all cards - added an internal speaker - no power on beep for the missing ram or missing video card.
Fans do turn on. Removed all SATA devices. No difference.
Have access to the schematic and boardview for this unit. Any ideas?
The sole power rail from the fresh power supply @ 3v3 is present. Have not placed any logic analyzer on the M-BIOS (yet) but could the bios have blown its brains out? Have a SPI flash programmer but that sounds extreme.
Visually, all caps look ok - could not find any burnt looking components. Client said they did not do anything but turn it on one day and found it not boot.
The replaced MB are $$.
Welcome all suggestions.
Have not reflashed a bios before for this motherboard - what is the procedure? Can hot air remove the SMD bios but the full bios dump should be applied onto this component (ie. full erase and full program)?
The dump is available here or should be from Gigabyte website?
Thanks!
Have replaced the power supply; removed and reseated the CPU; removed the RAM; removed all cards - added an internal speaker - no power on beep for the missing ram or missing video card.
Fans do turn on. Removed all SATA devices. No difference.
Have access to the schematic and boardview for this unit. Any ideas?
The sole power rail from the fresh power supply @ 3v3 is present. Have not placed any logic analyzer on the M-BIOS (yet) but could the bios have blown its brains out? Have a SPI flash programmer but that sounds extreme.
Visually, all caps look ok - could not find any burnt looking components. Client said they did not do anything but turn it on one day and found it not boot.
The replaced MB are $$.
Welcome all suggestions.
Have not reflashed a bios before for this motherboard - what is the procedure? Can hot air remove the SMD bios but the full bios dump should be applied onto this component (ie. full erase and full program)?
The dump is available here or should be from Gigabyte website?
Thanks!
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