Problem with the video card you have purchased 768Mb <PCI-E> DDR PX8800Ultra Leviathan (RTL) + DualDVI + TV Out + SLI <GeForce 8800Ultra> as I wrote earlier, just put the PC restarts the power supply at 730 w problem is not solved is the cause itself EVEREST Ultimate Edition program shows the following graphics adapter VGA (768 MB) or more simply that all of this at whist last downloaded 158.42_forceware_winvista_64bit_international wood and some were on the disc 158.18.