Usb over current

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Nick C

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Jan 2, 2014
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Hi, I recently bought a new case for my computer. It is a Thermaltake Armor Revo Gene and My mother board comes up with that statement "Usb over current... Computer will shutdown after 15 seconds." I benchmarked it and worked fine outside the case but when i put it in, its there. I called ASUS about it and the guy said it has to be a grounding problem because of the benchmark. I added little black discs between the screws and the stand-offs and the problem still occurs. Can anybody help?

It is an Asus M5A78L-MLX Plus

I dont have a front panel USB. I do on my new case but it isnt plugged in.
 
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clutchc

clutchc

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First, remove any insulated washers you have between the motherboard and the standoffs. The standoffs are suppose to ground the MB. The washers are unneeded and may raise the MB too high for proper alignment with the I/O plate. Next check the rear USB ports at the I/O plate. A common mistake is to allow one of the grounding fingers on the I/O plate to accidentally sneak into one of the USB ports. I've done it myself.
 
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Nick C

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I took off the washers and i checked to I/O plate. Still saying the same thing. None of the fingers are in the usb port, but the plate is pushed out for some reason. Nothing is pushing it up either. Could it be the case? Also if the problem still persists. I'll buy new brass standoffs and screws. Im using the ones the case provided. Some people say it could be my power supply
 
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clutchc

clutchc

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Standoffs sometimes come in slightly different heights depending on the case manufacture. I would stay with the ones provided or be sure to get ones exactly the same height and thread size & length. Can you provide a pic of the I/O plate situation?

To eliminate the possibility that the problem may be the front USB ports, unplug them from the MB temporarily and see if the problem still exists. We need to find out if it is the USB2 or USB3 ports.
 
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Nick C

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I unplugged them and its still there. Its hard to get a picture but near the usb ports (Mobo doesnt have 3.0) its pushed out. When i push the I/O plate back in, it stays. The I/O plate is securely fastened in the case hole though.
 
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clutchc

clutchc

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Is this a new MB you just bought? or one you've had in service that you are moving to the new case?

I don't know why it should be pushed out unless the MB is not installed properly or one of the ports is not fitting into its recess good. Are you sure no metal tabs from the I/O plate is sticking into one of the rear ports? A strand of wire or metal maybe?

What happens when you leave the I/O plate off?
 
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Nick C

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I haven't tried with it off. The MB is the same one from the old case and nothing is in the rear ports. I'll check again. I took the I/O plate off and the problem is still there.
 
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clutchc

clutchc

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Let me get this straight.
1) When the MB is bread-boarded outside the case, no USB error.
2) When the MB is placed in the case, the USB error returns.
3) Removing the FP USB cable makes no difference.
4) Leaving the I/O plate off makes no difference.

Correct on all counts?
 
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Nick C

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Yes. Well when i benchmarked it, it didnt shut off after the time frame that it usually did, but i couldnt see if the error message was there. I'm going to see if my old case has the error. If not i will buy a new case and if the error continues ill just have to wait to buy a new MB.
 
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clutchc

clutchc

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When you say "benchmarked it", are you really meaning bread-boarded it?
(Set the MB on an insulated surface w/just CPU and cooler, 1 stk RAM in 1st slot, PSU, video connected to MB (if possible), keyboard. Momentarily short the 2 pins that the power button would plug into to start. Boot to BIOS and see if the error msg appears.)
 
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Nick C

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Jan 2, 2014
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Yes. My mom said she would help buy a new motherboard because of the problem and from everything I've read and heard from you, I've chosen that option. Thank you so much for trying to help. I really appreciate it.
 
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Nick C

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I checked with ASUS and the warranty is still there. I just wanted to see if i could do anything about it before I would send it in.
 
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