I’ve got a problem with a recent build. The power shuts off randomly – sometimes it will just cut out when I nudge the case with my foot, sometimes not. Other people have reported that it sometims cuts out without any touching. This even kept happening after adding a UPS unit. Today, when I tried to turn it on, it wouldn’t turn on at first – I gave the button several good presses, and as I pulled it foreward about an inch it just came on.
I looked inside. All fans are working, all power cables are well-connected. The power supply is a Seasonic S12, and the CPU is an Athlon 64 X2 3800. PC Probe II reports that the CPU and power supply are both running around 48-50 degrees C, and the mobo is running at a steady 38-39 degrees C.
The computer sits under a desk, and typically there’s a few inches of breathing room in the back. It’s sitting on top of a wooden panel to protect it from static on the carpet.
Any idea what the problem might be before I have to exchange the power supply?