ok here it is in a nutshell. computer works fine before i send out the ram sticks to gskill and now i get the new ram sticks and i install them. get to the windows xp screen log in. see my background then computer goes black and restarts . what could the problem be. cant be the ram i dont believe and i forgot how to fix this. i've experience this before but a long time ago
any clues cpu e8400 610wats saphire ati 5770 ram 2x1gb ddr2 800 running at 4-4-4-12 2.0volts
More aboutrestarts login screen
It can't be the RAM? That's the only thing that's changed.
Try running with only one stick of RAM, and try different slots on the motherboard. See if you can run a memory test utility off a CD.