Motherboard not responding

[moshan0628]

Hi, I just finished installing my desktop into a new case. Before installation, the motherboard works effectively. After I putted every components into the case, the computer was on and running normally until i plugged the audio cable in. The computer suddenly shut down and I was not able to turn it back on. I tried to unplugged the power from all other parts except for the motherboard. All I have on motherboard is a 2G Ram, 24 pins ATX power plug and 8 pins fan power. I am using AsRock H77 Pro4 motherboard with an Intel i-5 CUP. Can anyone please help me !!!

 

[alexoiu]

Hi, When installing/uninstalling components, always make sure that the power supply is off.
Do the case and the CPU fans spin when starting the board?

 

[moshan0628]

Thank you so much replying! I am extremely anxious now.... I am certain the power was off when I put everything into the case. Everything was functioning normally until I plugged my speakers into the audio-input jack on the back of the computer. I took the motherboard out to test the problem and somehow it stopped functioning. It there any other way I can test the problem? or I have to go to local computer repairs? many thanks.

 

[moshan0628]

By the way, I wasn't able to turn the motherboard on. I did a test on power supply and I am sure it is working. The only problem might be the motherboard. I really don't know what else i can do...... It was perfectly fine this morning....

 

[alexoiu]

Is the CPU fan spinning when starting the board? Is there a case speaker (beeper) connected to the motherboard?

 

[chugot9218]

Did you make sure the standoffs were applied?

 

[moshan0628]

The CPU fan wasn't spinning and there was not speaker on board. I did use standoffs, yes.

 

[moshan0628]

And there aren't any obvious damages on motherboard. (no cracked, burned, etc.)

 

[alexoiu]

If you've tested the power supply and it does work, then it's a board issue.
Try starting it with only CPU and CPU fan installed. Make sure that the 24 and 4/8 pin power connectors are in place. If still the CPU fan isn't spinning when powering the board...

 

[moshan0628]

Thanks, I will try it again. If the CPU wasn't spinning, does that mean it is possibly doomed as well...... ? Oh gosh....