Is my motherboard fried?

July 17, 2018 at 12:27:33
Specs: iPhone , Intel core i7-6700 3.4ghz/ 16 gb ram
Screw fell onto my motherboard while replacing thermal paste. The pc was off but when the screw fell onto the motherboard, the pc turned on and the screw caused a component to spark. Now my pc won’t turn on

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#1
July 17, 2018 at 13:09:55
Why were you replacing the thermal paste? Did you work inside the case without unplugging the power cord? It looks like you're going to end up paying for your mistake. But 1st you're going to have to find out which component failed. It could be the board is fried or at least one of the chips on the board, but it could also be something else like the CPU. Or maybe the screw didn't damage anything & you simply applied the thermal paste incorrectly & that's why the system won't boot.

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#2
July 17, 2018 at 14:16:37
Thermal Paste
http://www.arcticsilver.com/
http://www.arcticsilver.com/methods...
http://www.dansdata.com/goop.htm

3 Troubleshooting Tips Guaranteed To Boot Your PC’s Motherboard
http://www.makeuseof.com/tag/3-trou...
The Basic troubleshooting guide is intended to provide you with a guide to problems that you may experience with the system
http://service.msicomputer.com/html...
How to Diagnose Motherboard or Processor Problems
http://smallbusiness.chron.com/diag...
Testing my computer motherboard and CPU for failures?
http://www.computerhope.com/issues/...
How to Troubleshoot for Motherboard Failures
http://www.wikihow.com/Troubleshoot...
Troubleshooting a Computer Motherboard
https://www.ifixit.com/Wiki/Trouble...

message edited by Johnw


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#3
July 17, 2018 at 20:52:05
My computer was constantly overheating when i played games like ark and rust, and I don’t have a bad graphics card, its a gtx 1070, so i cleaned all the dust out and it would still overheat, so my next option was the thermal paste, the paste that was already on wasnt covering much of the cpu so i wiped the cpu clean and when i went to close screw in the cpu’s casing the screw slipped and hit a component on the motherboard, turned the pc on, sparked, and then the pc shut off, i know I should’ve disconnected the power, that was my fault but i do know what component on the motherboard was damaged, i just don’t know if the rest of the motherboard is damaged

message edited by Hi-tech


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#4
July 18, 2018 at 05:00:03
I'd check the power supply first before declaring the board dead, but is the MB fried? I don't know; I can't see the board from here and it's a little outside of my reach. You'll have to look at it yourself.

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#5
July 18, 2018 at 06:04:38
Can you take a picture of the component that was bridged by the screw and a picture of the component that sparked?

are there any obvious signs of damage on the board? ie charred components etc?

When you press the power button what happens exactly? do you see any lights? do any of the fans attempt to spin?

I agree check the PSU first, you can usually turn on the PSU by bridging the green pin on the 20/24 socket with a black ground. If the PSU turns on then I would suspect the MB. a Picture would be useful.

Depends on the component you may be lucky, you can possibly replace the damaged component or a number of components along its path.

As Razor has said, its difficult as we cannot see your MB so would be good if you can tell us exactly what happens when press the power button and also take a few photos and upload them to a file sharing site.

Just for laughs please also check that you haven't disconnected the power button from the MB.


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#6
July 18, 2018 at 07:30:24
I'd be inclined to check the power supply fully; all voltage outputs... It may well be that one or more hath blown...

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#7
July 18, 2018 at 10:25:09
This is a stupid question, its my firat time using this site, I don’t see where i can attach any photos to my post

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#8
July 18, 2018 at 10:39:26
Re #7

Not at all stupid - we don't have that facility on here.

Use a free file uploading website. This one works well and is free without signing up:
http://www.fileconvoy.com/index.php

They will give you an address so just copy that on here and we can go and look at it.

Always pop back and let us know the outcome - thanks


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#9
July 18, 2018 at 11:23:28
http://www.fileconvoy.com/dfl.php?i...

The bottom rectangle of the two has some melt marks from either the screw or itself

message edited by Hi-tech


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#10
July 18, 2018 at 12:07:49
http://www.fileconvoy.com/dfl.php?i...

I don’t think my pc has a psu, it uses sort of like a dual laptop charger


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#11
July 18, 2018 at 12:50:42
Can you check the output of the mains/power adapter to see if it's delivering the volts out as spec'd on thehousing of the adapter?

message edited by trvlr


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#12
July 18, 2018 at 13:28:43
It appears you have an ASUS ROG G20: https://www.newegg.com/Product/Prod...

If the paste was originally installed by ASUS, it's doubtful it was done incorrectly. Paste doesn't go bad & does NOT need periodic replacement, regardless of what some knuckleheads in gaming forums might say. Once it's applied & applied correctly, it will last the life of the PC.

Your CPU uses the vertical line method of application so it should have looked something like this before the heatsink was reinstalled: http://bammbamm.org/Visual/EVGA/The... This will show you why a line is used: http://forum.corsair.com/v2/attachm...

If you applied the paste any differently than shown above, it may possibly prevent the system from powering up.

message edited by riider


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#13
July 18, 2018 at 14:34:11
useful and very sage info from riide re' thermal pssting... tak!

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#14
July 18, 2018 at 18:06:01
When you get arcs and sparks on a motherboard it mostly causes damage. However, as you've been re-applying paste it would be sensible to check that out before assuming motherboard failure.

EDIT:
Remember, it isn't just the damage you see that matters. Surging can also cause damage to chips in the same part of the circuit without showing any outward sign.

Always pop back and let us know the outcome - thanks

message edited by Derek


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#15
July 19, 2018 at 01:44:36
Those look like capacitors, very easy to replace but not so easy to identify what value they are. You could meter them out but if they arefaulty you will not get a reliable value, also while they are in circuit it isnt possible to meter them and get a reliable value. You can get an approximate value and go from there. Its littreally a 10 minute job to replace them.

The image with the blue lines, what was that illutrating? Sorry i couldnt figure it out.


Do you have a multimeter?


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#16
July 19, 2018 at 11:52:48
AlwaysWillingToLearn: The image with the blue lines, what was that illutrating?
Where the sparks were. (Caps are probably dead, so no valid measurements possible.)

If you do have a multimeter, I'd use it to measure the voltage at the barrel plugs. If it checks out, and the PC doesn't miraculously turn on if plugged in again, I'd consider the board dead.

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