I aleady upgreaded the PSU also..see different post

Is their keyboard activity in the bios just test it by moving cursor their.

If you had keyboard activity in the bios and not on the actual OS then it seems to buy a new power supply for your mobo...

Okey, It's seems my mainboard crashes and I had to replace it, this weekend just buy a ney board but I encounter some problems.

The problem is my power doesn't consolidate with the other...

I've guest you had video card trouble

I had onboard video and never tried F2 but I'll be back to do that first.

i already tested the power supply by shorting some pins and i try different memory stick for it and won't display to my monitor.

When I'm browsing my pc for a file then click a specific multimedia file my mobo suddenly rebooted continously. I've try to access safe mode but it won't load successfully, I try all possible...