Pc automatically boots to bios

Feew

Reputable
May 25, 2015
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4,510
Hello guys,

I built a new desktop with a B85M-g mobo and it worked fine for a year+ But the one day I've lost power in whole city and now it wont boot to os not ever to clean disk to show me that i have to put installation disc or sm nothing.

When i turn it on the "ASUS inspiring innovation blah blah" appears and then black screen and goes to bios. EVERY time I turn my PC on sm like that happens. Changing boot priority dont helps :(

I tried changing battery - didnt helped
I installed new bios - didnt helped
I plugged new Hard disc - didnt helped
I left the Pc without any power (without battery etc) for like 1-2 hrs - didnt helped

My specs:
os: Windows 8.1
ram: kingstone 1600 8gb ram
mobo: B85M-G
graphics card: GeForce GTX 660
power suppy: Cooler Master 600W
Storage: 2x 500gb hard disc

ps: Im from Poland so sorry for some mistakes in language etc :)