2 seconds beep and no display


Jan 6, 2013
When I power on my computer, I get a 2 seconds beep and have no display and my graphic card's fan starts working continuously at its maximum speed. I removed graphic card and I still hear the same beep.

This problem(2 seconds beep and no display) doesn't occur always but often occurs. When it was worked, I checked the rams with memtest and there was no error. I also tried using one of the rams(each 2 rams) but that doesn't made any difference.

I also removed PCI cards, disconnected hard disk and removed bios battery but it also doesn't work.

When system boots correctly, when I want to install my (pci) sound card driver I get a BSOD. I also checked irq for devices in device manager and there was no conflict.

I think this problem began when I was playing a game and suddenly system restarted. I have no other graphic card to replace and test. How do I find the cause of this problem? is my graphic card broken?

My graphic card is HIS 4870