After scouring the web looking for a solution to my friends above named computer, I thought I had found the answer: install two case fans that Gateway did not provide. The computer is still entering DVI power save mode.
He hooked one fan to power supply, the other to the motherboard. 550W power supply. He can’t even upgrade from Windows Vista to Windows 7 with his upgrade disk, as the machine continues to do this.
Any suggestions? Thanks.