Start with the easy things
about 3 years ago
In reply to my computer will not post
Have you tested the Power Supply. Just because the lights come on doesn’t mean that the Power Supply is working or that it has voltage or current on all Rails.
But the way to Fault Find with any system is reduce it to he mininum and see if it posts from there. If it does then add one component at a time and continue till it stops posting or is fully assembled and working.
So the way to do that is remove all but the CPU and Power Supply connectors from the M’Board and Power Supply connectors and apply power. Listen for Beeps from the M’Board which tell you what the Board is doing the Beep Codes should be in the M’Board Manual so you can find out what if anything is wrong with the M’Board.
Then add 1 RAM Module at a time till you have as much RAM as you want on the M’Board or it stops posting. Quite often you need matched RAM so generally that means Pairs of RAM and you should add them in to the matching RAM Sockets which are normally coloured so first add 1 Module to the first yellow socket and the second to the other yellow RAM Socket.
A lot of the time if you have 1 pair of Modules fitted the next pair need to be matched to the first or the system will not POST which is a RAM Error and not easy to get around without replacing all of the RAM with Matched Sets.
After you have the RAM loaded and the board POSTing you can add a Video Card and so on and so on till it is fully assembeled.