I just built this PC a few days ago and have ran into a problem. Hooked everything up and installed Windows 8, a few programs and everything was fine the first few days. The other day I put the PC into sleep mode, which I have done for brief periods of time without any problems. However, I put it into sleep mode at about noon. I didn't use the PC for the rest of the day. Got up the next morning, moved the mouse a little like I normally do to get it to come out of sleep mode and got no response. Sat there for a minute, tried it a few more times with no luck. So I pressed the power button on the tower, still no response. I checked the power connections, everything looked fine. I flipped the power switch to the PSU to off and then back on. Hit the power button and it started normally. Never saw any error messages or anything. Haven't put it back in sleep mode since.
This isn't normal, any ideas? Everything, including the PSU is brand new. Here is what I have...
Gigabyte GA-970a-A-DS3P ATX AM3+ Motherboard
Corsair Vengeance 8gb(2x4gb) DDR3-1600
Sandisk Ultra Plus 128gb SSD(OS)
Zotac Geforce 760 GTX 2GB GPU
Seasonic M12 II-620 Bronze 80+ 620PSU
Inside Enermax ECA3290A case
Cheap temporary Memorex DVD drive