Computer turning on for a split second, then turning back off.

Sluggish

Reputable
Oct 18, 2014
2
0
4,510
Components:
Motherboard - ASUS P8Z77-V LX
CPU - i7-3770k
PSU - Corsair 750W (don't know exact model)
CPU Fan - Cooler Master V6 GT
Ram - I honestly don't even know, I am going to be upgrading once I figure this out.
GPU - nVidia GTX 660

So today, I decided I was going to clean my computer because of how dusty it was on the inside. So I used my air compressor to clean it, letting it go only to 50 PSI as that was the recommendation on this site by many people. After cleaning it, I brought it back into my room and plugged everything back in. When I went to turn it on, it turned on then instantly turned back off. So I checked all my connections in the back of my pc, and they were all connected, and the PSU switch was on. So I tried turning it back on, and I got the same thing. So I brought it down, and started looking the issue up online. I checked all my connections, reseated my CPU fan (also applied new thermal paste), and reseated my other components (not CPU). After doing all this, I plugged back in and still no luck, same issue was happening. Went to Best Buy to ask what could be wrong, and they insured me it was the RAM. So I went back home, tested all my RAM slots, and then tested each stick of RAM. Still no luck, same issue. I am wondering what else could be the issue of this, as everything was working fine this morning. The only thing I could think of is it being the CPU fan, as that rattled sometimes and I have had a lot of trouble with it in the past. But even with that unplugged, I am still getting my issue. If anyone could give me any sort of help, I would really appreciate it, as I do not want to go pay a hefty fee to Geek Squad just for them to tell me they don't know what is wrong. Thank you,
Josh
 

plaintuts

Admirable
You probably nudged most of the dust in all of your other components.

You'll need to disassemble the whole thing then check if the solders in the motherboard are not damaged, because 50psi in close proximity can peel them off.

Or pay the geek squad to fix it..
 

Sluggish

Reputable
Oct 18, 2014
2
0
4,510
In reply to you plaintuts, I was not using it in close proximity and I was only doing small bursts on fans and such. Not just spraying the motherboard, if that helps with your solution at all.