I know this is old tech and my chances of an answer are probably slim, but I figured I would give it a shot. I built a Windows box around this mobo a few years ago and gave up on it when I could not find a solution to the power-cycling issue. I did not want to abandon it and have recently tried again to make it work.
When I turned the machine on, it powered up just fine and stayed up through the million or so updates that were required after being off for a couple of years. The problem resurfaced when it tried to restart. It turns on and turns off at random intervals. Sometimes it will power up for a couple of minutes, then it will shut down. Usually, it fires up for between 2 and 5 seconds, then it shuts down again. Typically, it will stay off for four or five minutes between restarts, though that is not completely consistent.
I have tried searching for this problem and have found a couple of leads, but nothing solid enough to work. I did replace the power supply, which did not help.
GigaByte GA-EP45-UD3R REV. 1.1
Kingston KVR 800 D2 N6 K2 / 4G
INTEL Core 2 Duo E7500
ASUS EN 9500 GT/DI/1GD2/V2/A
Creative Soundblaster X-FI TITANIUM FATAL1TY Professional series
X-Power Pro 650 watts
I have unplugged everything but a USB keyboard and monitor.
Fingers are crossed.
When I turned the machine on, it powered up just fine and stayed up through the million or so updates that were required after being off for a couple of years. The problem resurfaced when it tried to restart. It turns on and turns off at random intervals. Sometimes it will power up for a couple of minutes, then it will shut down. Usually, it fires up for between 2 and 5 seconds, then it shuts down again. Typically, it will stay off for four or five minutes between restarts, though that is not completely consistent.
I have tried searching for this problem and have found a couple of leads, but nothing solid enough to work. I did replace the power supply, which did not help.
GigaByte GA-EP45-UD3R REV. 1.1
Kingston KVR 800 D2 N6 K2 / 4G
INTEL Core 2 Duo E7500
ASUS EN 9500 GT/DI/1GD2/V2/A
Creative Soundblaster X-FI TITANIUM FATAL1TY Professional series
X-Power Pro 650 watts
I have unplugged everything but a USB keyboard and monitor.
Fingers are crossed.