I have a MSI neo platinum 4 mb with 2 gig ram tested with memtest, updated all drivers including video and get random bsod errors irql_not_less_or_equal. The computer may go for days than all of a sudden the machin shuts down. I have reloaded windows xp 2 times and the problem still recurrs. I can not repeat or duplicate the problem. The machine may work fine for 1 hour or for 6 or 7 days then it happens. I am using windows xp professional have all the windows updates still random bsod as above. No new software or hardware added. But this machine has been doing this over and over even with the reinstallation of windows xp.