For several years I have been repairing computer power supplies, but now have decided trying to tackle repairing a motherboard. I have acquired a dead Elite 945GCT-M3 probably from emachine computer. Here is what I have found so far:
The Power LED does not light up at all. I put a known good cpu and memory in the board. I installed a post tester in a pci slot. It reads FFFF indicating that the cpu is not doing anything. The LEDs on the post tester for 3.3v, 5v, 12v, and -12v all come on. The clk LED does not come on at all, so no clock signal. The RST LED stays on all the time. So looks like the reset line is hung up.
Is the reset circuit part of the NorthBridge or SouthBridge chip? Where should I look for the reset circuit?
If I can fix a Bestec ATX250-12E, then surely I can learn how to fix a motherboard!
The Power LED does not light up at all. I put a known good cpu and memory in the board. I installed a post tester in a pci slot. It reads FFFF indicating that the cpu is not doing anything. The LEDs on the post tester for 3.3v, 5v, 12v, and -12v all come on. The clk LED does not come on at all, so no clock signal. The RST LED stays on all the time. So looks like the reset line is hung up.
Is the reset circuit part of the NorthBridge or SouthBridge chip? Where should I look for the reset circuit?
If I can fix a Bestec ATX250-12E, then surely I can learn how to fix a motherboard!
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