I found out recently that the Accelero Twin Turbo vga cooler I used on my Gigabyte HD4850 1GB (one of these) stopped working, so i decided to remove it and buy a new one. However I haven't had the opportunity to buy a replacement so I removed the cooler and put the video card back into the computer without any cooling assembly at all.
I didn't touch anything else inside my tower and I always touch bare metal in order to avoid static discharges. Now, when I turn on my PC, the display shows the BIOS splash screen and then it goes black. My monitor displays a default message as if there is nothing connected to it.
My speakers are on but I never hear the Windows 7 startup sound, so it does not appear to be booting to Windows at all. Before I decided to use the video card without a cooling assembly everything worked the way it was supposed to during startup. I would hear a beep from the motherboard and then it would start to boot. Even though I do not have a display the motherboard still beeps.
I tried to enter the BIOS with F2, it shows me a "starting setup" message, but then the screen goes black and nothing happens! I tried removing the graphics card and inserting it back once and nothing happened.
I do not have another graphics card to use. I have torn down the entire system, replaced my existing motherboard with an old ASRock motherboard that has onboard video and I still get no display. Is there something that I have to do?