Shut down instead of restart ?

PC:
C2D E7200, DFI Blood Iron P35-T2RL, HD4850, SXS 500W

This is the problem… When i restart computer from windows, instead of restart computer just shut down… then after ~3 sec he turns himself on but all i see is black screen, no post no nothing… In order to start posting and booting the system, I need to shut it down (by holding the power button) and leave it for a few minutes… After that i power it up again and it works normal…

I need to mention that this happens only if he was turned on for a few hours. If i restart right or after a few minutes when i turn pc on, it restarts and work normal..

I belive that all of my components are ok (~3 months old), maybe some settings in bios are wrong ??

Is this in a New case ? It sounds like the wiring is WRONG to the switch from the motherboard.

It is a new case… How do you mean wiring is wrong… i have not connected everything right ?

that would be my guess..

I have just finished checking… and as far as I see, everything is properly connected…

Computer was working for like ~5 hours, i have tried to restart it now, and restart went fine, there was no shutdown… I have noticed one thing, when i restarted it, i didn’t hear one beep and i have not seen post screen, just black screen and then windows xp logo appeared and pc continued booting with no problems…

I’m not sure but i doubt that some option in bios isn’t configured properly… i just don’t know what to look… Any idea for bios options ?

Try hitting Delete key on startup, or it may be f1 or f2…

You forgot f12 :slight_smile:

:D, y funny. Ofc i know that. I mean is there some power related option that maybe isn’t set right ?