Compressed air sprayed a liquid into PSU! Troubleshooting, Please Help

SoogeSC

Reputable
Nov 25, 2015
2
0
4,510
Hi, While cleaning my PC I tilted my can of compressed air slightly too far and it sprayed a liquid into the power supply.

Ever since this happened, the PC will not boot. However it will still power on. All of the fans start spinning and the HDD LED turns on and starts flickering as usual, but there is no signal from the video card, or onboard video, and all of my peripherals appear non responsive (The LEDS on my mouse and keyboard never turn on).

The computer will also turn off and on repeatedly whenever I attempt to plug in a new device while it's powered on.

Unfortunately I can't tell whether or not it's booting into Windows because I have no video output.

I'm really just wondering if I could get some educated guesses as to which components I'll need to replace, I'm sure I'll need a new power supply but I can't figure out If I need to replace the motherboard and video card too. Any thoughts?

Solved: It ended up being the power supply, everything else worked once it was replaced.
 
Solution
No way to tell... All you can do is get a new psu and track issues from there... Most parts protect themselves pretty well but a short inside the psu can still be a problem. Just hook up a new supply and find out

Inachu

Honorable
Nov 1, 2012
141
1
10,710
I could be mistaken but I thought all air cans liquid would be neutral unless you bought them at a hardware store. All the air cans I bought at computers stores were neutral and would not harm any computer component even when turned on.

So hopefully you bought the right can of air made for a pc next time.

When unsure then never turn device on and take out of pc and let it sit in the sun to dry for many hours as long as possible.
 

rohitbaran

Distinguished
Well, all I can say is that even if it is water, you should wait out a couple days before you turn that thing on. See, water by iteslf is not dangerous to a pcb if the pcb is coated with a solder mark and all components on it are sealed. However, if you supply power to it, then you run the risk of short circuiting stuff. So, a way to avoid that is to let the water sry and then power it.