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Computer Displaying USB Power Overald then Shutting Down

616 Views 8 Replies 4 Participants Last post by managed, Jan 1, 2022

judesumner

Discussion Starter · Dec 29, 2021

Hi there
I’ve just built a new pc and tried Turning it on, but then my monitor displays a message stating that there is a usb power overload, then the pc shuts down. Nothing is plugged into the pc except the monitor so that rules out a faulty usb device. And the front usb connector isn’t plugged into the motherboard so that rules that out. Someone please try to diagnose the problem

Otherwise I will have to go to a pc shop

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phillpower2

· #2 · Dec 29, 2021

Hello judesumner,

Golden rule of system building is to assemble all of the parts outside the case first, that message could be being caused by a short for example.

See guide here

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judesumner

Discussion Starter · #3 · Dec 29, 2021

phillpower2 said:
Hello judesumner,

Golden rule of system building is to assemble all of the parts outside the case first, that message could be being caused by a short for example.

See guide here

Thanks for the reply, but what is a short ?

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phillpower2

· #4 · Dec 29, 2021

A short can be caused by two conductive surfaces coming into contact when they shouldn't, a bared wire on the case, a badly fitting I/O plate, a motherboard stand off in the wrong place, a badly fitted memory stick or add on card, too much thermal compound, a bent CPU pin, a connector hooked up incorrectly, a cracked soldered circuit, all are examples of what can cause a short, there are other things as well but I reckon that list is long enough.

You are welcome btw

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judesumner

Discussion Starter · #5 · Dec 29, 2021

phillpower2 said:
A short can be caused by two conductive surfaces coming into contact when they shouldn't, a bared wire on the case, a badly fitting I/O plate, a motherboard stand off in the wrong place, a badly fitted memory stick or add on card, too much thermal compound, a bent CPU pin, a connector hooked up incorrectly, a cracked soldered circuit, all are examples of what can cause a short, there are other things as well but I reckon that list is long enough.

You are welcome btw

Right ,
The IO plate seems fine, there's only 2 PSU connectors hooked up to the motherboard, it's a intel CPU so no pins, the wires are all fine, the memory stick is good. A bit too much thermal paste but surely that doesn't cause the pc to shut down ?

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phillpower2

· #6 · Dec 29, 2021 (Edited)

judesumner said:
A bit too much thermal paste but surely that doesn't cause the pc to shut down ?

It is a conductor so of course it can cause problems, hence the reason why there are application guides for applying thermal compound correctly, Intel instructions here Arctic Silver here

Make sure that you have a keyboard connected when you try and boot up, the power on self test most often fails if you don`t.

Please refer to the purposely written tutorial provided courtesy of crjdriver here

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crjdriver

· #7 · Dec 29, 2021

judesumner said:
intel CPU so no pins

Intels use pins however the pins are in the motherboard socket and not the processor. Just the opposite of AMDs.
Read the guide and do the out of case build. If you follow ALL of the steps, you will find the cause of your problem.
Next

I've just built a new pc

You need to post an exact parts list; ie exact motherboard, exact processor, exact pw supply, etc, etc. Do not post "500W pw supply" Post the exact brand and model# Do that for ALL of your parts.

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phillpower2

· #8 · Dec 29, 2021

crjdriver said:
Intels use pins however the pins are in the motherboard socket and not the processor.

Didn`t want to get into that

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managed

· #9 · Jan 1, 2022

Check that no part of the I/O board has gone inside a Usb connector, the I/O shields often have small bent bits that should only connect to the outside of the motherboard's connectors.

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