I finished building a new system and encountered a problem with video. The video card would occasionally hang and continue displaying the picture that was on at the moment of the hang. To get it to respond again, I must reboot. In some cases the computer will not be bootable as if it had no graphics card (will fall back to integrated video, or beep if IGP is disabled) until I remove and reattach the VGA cable to its DVI-I port. Subsequently the D-Sub works again.
After I assembled the system, I proceeded to configure the BIOS (graphical mode) and then test the system with memtest and hdat2 (text mode). In both cases, the display would sometimes hang when I just touched the PC, such as ejected and loaded the CD tray, or if I removed the video cable during a prolonged test to work on another computer. After I reattached the monitor, I could see the screen where it hang. Software could then still cause disk activity, make sounds through the PC speaker, and the computer could be soft-rebooted via Ctrl-Alt-Del.
I tried re-seating the card in its slot, and adjust the speed of the PCI-E slot in BIOS, but this didn't solve the problem.
At this point no drivers or OS are installed. I inserted another video card, an old Radeon X550, and the system appeared to be stable during installation of Windows XP, and remained so after I installed drivers and launched a game. Both cards should have comparable power consumption (<30W), with the replacement maybe slightly less.
Upon inserting the faulty card in another computer, it initially failed to boot and went into a reboot cycle. It began working again after I, with power removed, switched the video cable to the other port, without removing the card itself.
Video card: Asus GT 610, 1 GB
Motherboard: Gigabyte GA-B75M-D3H (uefi bios)
Power supply: Fortron 500W
CPU: Ivy Bridge G2030
Memory: 4 GB DDR3
What can I do to diagnose if the card or another component of the new system is faulty?
Edited by j7n, 11 September 2013 - 08:19 PM.