Ok lets do this the old fashion way.
Disconnect EVERYTHING within the computer. Except the power/reset button cables from the case to the mobo.
Take out every card within the system except for the video card.
If you have a spare case lying around that is compatible with your mobo, plug it's power supply into the connections onboard. Don't forget to plug in the reset/power lines that run to the cases front buttons though. ATX boards will not boot up unless these are connected. If it runs, then that's your answer if not.................
Check all connections from the computer case to the mobo.
Make sure the power/reset lines are correctly hooked into the computer from the case.
Smell the power supply! No shit..take a whiff, if it smells like ionized particles it is toast. You will immediately notice the smell/tingle on your tongue. No don't french kiss it!
Now plug in the power supply and make sure the motherboard is not loose, or touching any part of the case with it's underside.
Try turning the system back on with the video plugged in. If it starts up, then shut down the system and reconnect your HDD making sure the dips are set at the right setting.
Turn the system back on again. Repeat this for every piece that you disconnected. It won't take long and will help to isolate the problem.
Now if it does not start and you are SURE the powersupply is plugged in correctly, then remove the entire motherboard from the case and place it on a piece of cardboard. Make sure the case connections are correctly setup for the power and rest buttons on the case, and try starting the system up with only the video card attached and connect to the monitor. If it boots, you have a grounding problem in the case, and must make sure the little "feet" that support the board a re securely placed, and that the mobo is scewed down snug..not tight!
If that does not do anything....
Check the CPU itself. Take the HS off of it and look for brownout/electrical discharge or heat damage. Remove the processor itself and reseat it making sure it is snug. Replace the HS ontop of the proc. I recommend putting some arctic silver 3 on it if you can later verify that it was not the cpu.
Let us know how it goes.
This post has been edited by Dark Schneider: Dec 9 2002, 09:42 PM