Having problems with your Dell OptiPlex GX520 PC Desktop ?

When I switch on the computer there is nothing on the screen

\015 The screen is black.when I switch on my dell optiplex gx520 computer there is nothing on the screen. The power is still on.\015

Answers :

Do you hear anything during startup, beeps, fans or drives spinning, lights on the front or back of computer flashing or lit up? Do you hear the Windows starting sound?
\015\012Let us know more then we can troubleshoot better. It is starting to sound like 1 of 3 things, Power supply, Video card or motherboard.
\015\012Situation #1: If you get a blank screen and no sounds or movement it either indicates that the power supply unit (PSU) has failed or something on the motherboard has failed, preventing normal startup.
\015\012Situation #2: If you get sounds and lights but nothing on the screen then it indicates a failed or loose video card.
\015\012Always try a different power outlet that you know is working. (Eliminate the easy stuff first!)
\015\012If it is out of warranty, Try opening up the case, with the power off, of course. If you have Sit #2 and have a video card that you can reseat try that.
\015\012Also take the time to inspect the capacitors on the motherboard (they look like tiny soda cans) and check for tops that are bulging, swelling or leaking anything. Capacitors should be perfectly flat on top. If you find these then your motherboard is bad (well technically the capacitors on your motherboard are bad). The caps will need replacing to fix (not a job for an amatuer). If it passes the visual inspection then it may just be your power supply is bad. Notice that a bad PSU does not mean you are getting no power, just not enough to start and run the computer.
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