Desktop computer won't start up after cleaning

June 4, 2013 at 18:56:43
Specs: Windows 8
So today i decided to clean my computer after finishing up I went ahead and closed up my computer and it wouldn't start. I went in and found that my power switch wire to my motherboard was disconnected after putting it back in it started up i reconnected my side fans and as i was about to close my computer up it just shuts down and wont start back up. I don't understand whats wrong with it and i need some help figuring it out. i have an asus x79 motherboard and when my power supply is connected there is a green light on the top right hand corner signifying that there is power to the board yet it wont start

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#1
June 4, 2013 at 19:16:58
Please explain how you cleaned the computer. I suspect that if you ended up unplugging a power connector, you probably used a vacuum cleaner. If you did, it may not be good. Aside from the obvious issue of bumping things, pulling out connectors and possibly wires from connectors, there is the problem of Electro Static Discharge (ESD) to components which can be very bad.
Did you remove any components?
Did you remove your CPU's Heat Sink? If yes, did you remove all of the old thermal compound and replace it properly?
http://www.arcticsilver.com/methods...
Answer these questions, list all of your components, and examine your system inside carefully again with a strong light for anything loose, unplugged, or damaged.
Post results.

You have to be a little bit crazy to keep you from going insane.


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#2
June 5, 2013 at 14:12:44
Usually it is because you disturbed some connection or other. Check them all for tightness.

RAM can sometimes move on to a tarnished surface so clean the edge connectors with a pencil eraser and pop the sticks in and out a few times to clear any tarnish from the sockets too. Same applies to anything with edge connectors, including SATA HD power and signal connectors.

Always pop back and let us know the outcome - thanks


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#3
June 5, 2013 at 14:16:53
It's best to use purpose-made air blasters for cleaning a PC interior as they shift dirt and dust more effectively without you having to touch any components, and no risk of accidentally pulling off a connector.

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Related Solutions

#4
June 5, 2013 at 14:40:20
i mostly stuck to cleaning the fans... what caught me off guard was the fact that it was running fine initially after i reconnected the loose power switch wire.. but after 5 mins it just shut off and wouldn't start back up (still not starting) . The fact that it started up before means that it wasn't an ESD + i made sure i was grounded and i used a compressed air can to clean most of it off. i did not take off my RAM or my CPU water cooler. Im thinking that its a problem with the PSU but i still dont know

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#5
June 5, 2013 at 14:45:33
It is very easy to disturb a connection or for a cable to touch the RAM and cause the issues I described in #2. It could be just coincidence but most likely it is down to a component or connection being slightly disturbed. Maybe something was loose in the first place.

Always pop back and let us know the outcome - thanks


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#6
June 5, 2013 at 14:49:20
Ill look over all my connections and see if there is anything loose

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#7
June 5, 2013 at 15:00:10
I'm not to computer savvy but every thing looks like its in its proper place and all the connections btwn mobo/wires and wire/wire look fine and are connected very solid

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#8
June 5, 2013 at 16:35:04
I've been caught with the RAM edge connector issue many times when working on computers. I think you should do what I suggested in #2 before moving on to other possibilities as your problems arose so soon after the cleaning.

Always pop back and let us know the outcome - thanks


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#9
June 5, 2013 at 19:38:09
Ok Derek i cleaned the edge connectors and popped in and out my RAM a few times. Still no luck =/ I did the same with my SATA power still the same result

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#10
June 6, 2013 at 14:39:02
OK then "I think" we can assume this is pure coincidence but still probably a hardware fault. Sometimes tricky to prove from afar but first question "is the PSU fan running"?

Harping back to the cleanup - often there are groups of very small connecters all together in one lump, looking like a single plug. It is easy for one of those to go adrift (after all the wires off your fans clearly prove this sort of thing can happen). As per #1 have a darned good look at these in a strong light - it would be a shame to move to bigger things if something as simple as a little connector is causing this issue.

Always pop back and let us know the outcome - thanks


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#11
June 7, 2013 at 05:36:24
Once I came across a machine that was acting up and decided to blow everything out, including from both ends of the power supply. The problem might have been with the power supply, of might not, but after, the power supply was dead. It is possible that blowing out the power supply was the last straw, it might have gone very soon anyway, or it is possible that among the dust within, there was something conductive that finished of the power supply.
If you have a spare power supply, you might want to try swapping it out to see if that is the problem.

You have to be a little bit crazy to keep you from going insane.


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#12
June 7, 2013 at 19:10:47
yeah i looked at the PSU and i did have another, my bothers spare and we hooked it up and still nothing happened. like i click the button nothing happens no fans turn on or anything nothing boots. Could it be the hard drive? or is it the mobo =( ? and Derek I took another check on the wires and nothing is loose or unhooked, everything is where it needs to be

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#13
June 8, 2013 at 05:54:36
To see if it is the hard drive, unplug it and see if you can get a post screen or access your BIOS set up.
If you are getting nothing when you hit the power button, you may have pulled the wire out of the motherboard that connects to the front button on your case, or from the button itself at the front of the case.

You have to be a little bit crazy to keep you from going insane.


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