Screen went dead, unplugged the graphics card and
So basically you cannot get the pc to POST. Meaning you have just a black screen when you power on the pc, right?
First off, did you attempt to update BIOS before this happened. 90% of the time this is caused by a corrupt bios.
If you did not try to update BIOS before the problem started then try these troubleshooting steps.
1. Full power down. Unplug the power cord from the Power supply. Then hold down the pc power button.
Try to boot the pc.
2. Open the case and reseat the graphics card, hard drive, and RAM.
3. Take out one of the RAM sticks if there is 2 or more. Swap the RAM sticks in different RAM slots.
4.
Set the Cmos jumper to clear. Power up the pc. Power down the PC. Set
the Cmos jumper back to normal position, power up the PC.
5. Unplug and replug all the power supply cables.
6.
Check the powersupply function. Either by a powersupply voltage
checker, put the powersupply in a different pc, or try a different
powersupply in the problem computer.
Could be bad ram, motherboard, cpu, powersupply, videocard.
If the video card is suspected to be damaged, try it in a other pc (friend's, mom's or dad's, pentagons' ).
if it is bad, there is your answer.