Weird troubles: Cold boot
I've got a weird problem and I don't know where it comes exactly.
When I boot my computer, sometimes the screen displays nothing. It even doesn't wake up (it stays in sleep mode). So I think, this is what we call a cold boot.
I just have to reset to computer to work perfectly well. I've done a memory test with memtest during 2 days (1 the last month, 1 this month) and no any errors.
The only thing that really changes something was to change the mhz of the ram. I was in default profile about bios, clocked at 1333mhz and I specified XMP profile, with 1666mhz, I had less cold boots.
Anyway, in fact, it's like when I boot my computer, 1/30 times, I have a cold boot, it's not everytime.
Do you have any idea where is the problem?