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help! computer won't display anything

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thanks! fixed! it was just a graphic card going bad. replaced it

Edited by JDMs2000, 19 April 2012 - 12:43 PM.

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:welcome: JDMs2000

First thing to check is the PSU, do you have or can you borrow one for testing purposes, if not you will need to get the present one tested by a tech who has the correct equipment and knowledge to test a PSU correctly.
As a PSU puts out various different voltages +3.3V, +5V and +12V it can appear to be working but if one of them is not functioning correctly or at all then the system will not boot.

You mention unplugging and replugging the Ram and video card etc but here are a couple of other suggestions;
1: Check that your main power and ATX sockets from the PSU to the MB are secure.
2: Remove all Ram and power up, if you get error beeps from the board it may suggest your Ram is ok but the video card has a problem.
3: Try one stick of Ram at a time in slot 1 until each stick has been tested, do the same for each stick in each slot and make a note of any results.
4: Try another keyboard as a bad keyboard can prevent a computer from completing the POST.
5: Check that your heatsink and fan are securely fixed in place.

Some of the above checks can be done at the same and I am not saying it has to be done in the exact listed order.
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