PC is turning ON when I turn OFF my speakers or hit some keybord button

maro112

Reputable
Dec 2, 2014
7
0
4,510
Hello,
This is my problem. I turn on PC, do something - gaming/youtube etc. After I finish and when I want to turn off my PC I have to turn off my speakers before the PC because IF I turn off speakers after PC is OFF - computer starts again. The same problem is with the keybord - if I hit any button when the PC is off, computer starts again. have no idea why. It's my stuff:
-z87 extreme4
-i5 4690k
-GTX 970
-BeQuiet 730W
-HDD WD 1TB
-SSD samsung 840 evo 250gb
-2x8gb g.skill 1866mhz
WINdows 7.

I have this problem since few months. Never changed BIOS etc. No idea is it motherboard issue or maybe PSU?
 

maro112

Reputable
Dec 2, 2014
7
0
4,510
I found in BIOS USB keybord/mouse power on. I had all the time disabled so it is still not this option. I also turn off a option which is letting a keybord/mouse to start the PC in control panel -> device menager.

I can also read many many topics like mine but nobody have a problem with the speaker....