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Help with a motherboard

S

Sam443

Senior member
I am trying to fix a computer for my wife's office. It just had a new mother board installed. The guy who did the installation was killed in a car wreck last week so I am not sure where to start. The power switch does not work but when I plug it in the power supply (fan), becomes active and the hard drive and CDrom spin up for about 1 second. After that nothing happens, no display or anything. Hints on where to start would be greatly appreciated.
 
Also, check the video card, it may not been seated right. If you have another pci (assuming agp) card
 
Check the orientation of the drive cables, that's a common problem. Reseat the CPU and memory and all adapter cards. And of course do those one at a time, checking to see if it works between each try.

Is it an ATX or AT case?
 
A short power up immediately after plugging in the power is normal for many motherboards....they go into a "soft-off" state. Check that video card, CPU and RAM are seated properly. Then check that the case power button (button at the front) has been plugged in correctly to the motherboard headers. This is usually a green wire and black wire in a 4 wire plug...very thin and small, going to a whole bank of pins.
 
What else can you tell us about the hardware? What kinda motherboard did the poor guy put in?
Some boards will power on for a sec and blink the cd light when you plug the power cord in then go back off (normal operation). Some power supplies have a on/off switch on the back. That's probably on since it powers up for a second. When you press the power switch in the front, does the power led light up and remain lit?
Also, make sure the voltage select switch on the power supply is set to 115.
If none of the above helps, pull the cover off and check all the connections. Make sure all the cards and cables are seated properly.
Look for things like loose screws or cables that didn't get plugged back in.
 


<< The guy who did the installation was killed in a car wreck last week >>



Wow...that's some rough stuff 😛

I'm banking that the orientation of the cables and/or headers may be incorrect. Double-check those and if you still don't have any luck, double check that your CPU, video, and memory is properly seated.

 
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