USB Surge caused Boot Failure

June 3, 2010 at 03:59:04
Specs: Windows 7
I inserted a USB device into my USB port on the rear of my pc. Instantly the power cut off and now my pc will not turn back on. Any ideas? I have tried rewiring the inside of my pc. and i have tried an alternate Power Supply nothing i have tried has worked. However i did notice that the onboard power light on the motherboard is lit.

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#1
June 3, 2010 at 04:36:47
Was the rear USB port one that is attached directly to the motherboard, or connected by wires?

What was the USB device you attached?

Do you know if that device was functional?


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#2
June 3, 2010 at 05:26:20
Was the rear USB port one that is attached directly to the motherboard, or connected by wires?
Directly into the motherboard
What was the USB device you attached?
Memory Stick
Do you know if that device was functional?
Worked and still works in other pc's

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#3
June 3, 2010 at 05:34:38
What is the make and model of your power supply?

What other USB devices were connected to the integral rear USB ports?


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Related Solutions

#4
June 3, 2010 at 05:43:19
What is the make and model of your power supply?
FSP Group INC - Model: FSP300-60GTM
What other USB devices were connected to the integral rear USB ports?
. USB Mouse
. IPOD Touch


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#5
June 3, 2010 at 05:53:59
"I have tried rewiring the inside of my pc".

What wiring did you change?

Did you return it to original configuration before trying a different PSU?

What would make you think the wiring was wrong if the computer had been working?

Sounds like a failed power supply.

Your power supply is a decent one but may not be sufficient for your hardware. Depends on what hardware is installed. Especially the graphics card.

Had you used the same rear USB port in the past?


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#6
June 3, 2010 at 05:57:09
I uplugged everything and plugged it back in. I have used a different PSU and have the same problem. I have been using my onboard graphics.

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#7
June 3, 2010 at 06:09:51
If the power supply did fail it may have also damaged the motherboard.

I assume you built this computer? A remote possibility is that a motherboard standoff was installed in the wrong position and the slight movement when plugging in the the USB device may have caused the back of the board to short out.

You could try removing the board and bench testing it.


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