shashanktyagi1
Journeyman
I have a HP desktop with Pentium D. I also Upgraded it with a Graphics card of ASUS GeForce 6200. It was working fine until i installed a new harddrive SATA 250GB. After that it began to show sudddenly that monitor was sleeping and computer used to hang. It happens when any graphic intensive work is done. and after leaving it for some time it again works for few hours. i tried to check it by keeping the cabinet open but to no avail. got the graphics card checked but no problems there. after the problem starts the monitor sleeps in just five minutes if i restart again. computer is working fine if i take out the card and use the internal card with my motherboard. is the problem overheating or is it in the PCI slot.