PC Wont Start After Cleaning (have read guide)

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mrtissues

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Jul 23, 2012
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Hello,

I cleaned my PC last night and this morning tried to turn it on for the first time since. Unfortunately, the PC does not start at all. I have followed the guide here: http://www.tomshardware.com/forum/261145-31-read-posting-boot-problems and none of these steps have resolved the problem.

I have a Z77 Extreme 4 motherboard, and when trying to either hit the power button on my case, or the power button directly on the motherboard nothing at all will happen. No beeps, no lights, nothing at all. I tested the PSU and it is able to turn on so I know that is not the problem. The motherboard has a diagnostic LED and that does nothing also. It appears that the motherboard is just totally dead. Is there any reason to not think this?
 
Solution
M
Hi

Probably dead motherboard or the 12 volt atx cable near to cpu with 4 or 8 pins is loose or psu dead

Reset cmos jumper (see user guide for motherboard )

Paper clip test does not confirm psu is good only can confirm bad if it does not start up
( paper clip test is a no load test )

You need some spare parts
Starting with spare known good psu
And motherboard out of case, with out graphics card
A spare speaker of some sort and power push switch are very usefull

Regards
Mike Barnes
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M

mrtissues

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Jul 23, 2012
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Thank you for the reply. I meant to say that I had tried replacing all of the cables. I actually removed the power cable from the PSU to the motherboard in order to test the PSU using the paperclip between the green and black wires.
 
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Gravez98

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Dec 9, 2014
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Then perhaps it's not the wires. It could be that the Motherboard has actually died. I need you to tell me how old the system is, how you cleaned the system and anything else related.
 
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mrtissues

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Jul 23, 2012
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The system was built around the summer of 2012. To clean the computer I used a can of compressed air and had a vacuum that I used to suck dust from the air that came from the compressed air can. I think the vacuum is where I messed up.

The fact that there are no beeps, and no indications on the LED display on the mobo makes me thing it is 100% totally dead, would that ever not be the case?
 
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M

mbarnes86

Splendid
Sep 16, 2010
3,839
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26,965
Hi

Probably dead motherboard or the 12 volt atx cable near to cpu with 4 or 8 pins is loose or psu dead

Reset cmos jumper (see user guide for motherboard )

Paper clip test does not confirm psu is good only can confirm bad if it does not start up
( paper clip test is a no load test )

You need some spare parts
Starting with spare known good psu
And motherboard out of case, with out graphics card
A spare speaker of some sort and power push switch are very usefull

Regards
Mike Barnes
 
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Solution
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Gravez98

Reputable
Dec 9, 2014
22
0
4,510


Mhm... Well I often vacuum my PC case / PC Fans without any issues. It may be the compressed air. Often there's small liquid particles (often water) inside the can so when releasing air into the PC there's often water molecules there which could of harmed the PC. Also did you try to dispose any static built up on you. Was there any static shocks during the leaning. It could of gotten a static shock and therefore fried the PC. There's two possible things that could of happened.

A) Your motherboard is now fried due to static/ water molecules in the compressed air.

B) While cleaning the PC you must of triggered a PSU wire/ CPU wire. (This is the less likely explanation)
 
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M

mrtissues

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Jul 23, 2012
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THANK YOU THANK YOU. It ended up being the CMOS. I figured my CMOS battery was dead when I was reading the guide, so I pulled the battery. I guess that was not enough and I needed to find the reset pins bridge and move them to the 2-3 pins. As soon as I did that everything began booting as expected.

Apparently pulling the battery is not the same as changing the bridge's pins.
 
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