My computer doesn't shut down nor sleep, either in Windows 8.1 nor Windows 7 (dual boot). SOLVED!

Rodion15

Distinguished
Sep 11, 2011
760
7
19,015
My computer doesn't shut down nor sleep, either in Windows 8.1 nor Windows 7 (I have them both in dual boot). The power supply remains on so I have to press the power button for a while to shut it down. This didn't happen two weeks ago, I have been using the two operating systems without trouble for more than a year.

Motherboard: ASROCK Z77 PRO3

Processor: Intel core i5 3450 3.1Ghz

RAM: 2 modules of 4GB DDR3 /1600 KINGSTOM HYPERX KHX1600C9D381/4G

Hard disk 1: Seagate Barracuda 2TB 7200 RPM 64MB ST2000DM001-1CH164

Hard disk 2: the same


Power supply 700W 3GO Energy PS700SX (features on sticker: 3.3v—30A, 5v—32A, 12v—36A, 5SB—2.5A).
 

GalFisk

Reputable
Jul 14, 2014
1
0
4,510


There appears to be an issue with the Z77 chipset that causes this in some computers. Most users report that clearing CMOS (see your motherboard manual, maybe under "clear RTC") resolves the issue.