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Thread ID: 138569 2014-12-18 03:10:00 HELP! Salt like substance covering everything! Motherboard GPU etc PC builder (15482) Press F1
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1390479 2014-12-18 03:10:00 One day out of the blue my computer did not boot, upon inspection everything inside my computer was covered in this salt like crystallized substance.
It seems like the motherboard was short circuited from this as I found an area that was burnt out.

I have been to multiple computer shops but they have no idea of what it actually is.

I think the Graphics card may still have some life in it if it was cleaned properly, any suggestions? I have tried high pressure air to no avail.
6088
Thanks
PC builder (15482)
1390480 2014-12-18 03:31:00 First thought is something like capacitors or the internals of something have blown, but they normally don't shower their contents all over the board. Could also be corrosion just spreading, what started off as something small has been allowed to grow. if you look at it, its heavier around all the solder points. wainuitech (129)
1390481 2014-12-18 03:33:00 That looks like some sort of liquid has got in and then dried out leaving behind that residue.
For it to cover such a big area, is anything else inside the case covered in the same stuff?
CYaBro (73)
1390482 2014-12-18 03:33:00 Residue from something burning perhaps, or the insides of an exploded capacitor although that usually looks more like polystyrene.
If all else fails try good old water and possibly a soft brush. I once fixed a motherboard that had been subjected to cat pee with a garden hose (from wouldn't power up to fully functional). You may need to pull it apart partially though, depends on the design and how well it traps water etc.

Water will not usually actually damage electronic components provided they are dried off completely before any power is applied. It can take a week or longer in a dry environment though for it to leave every nook & cranny so don't rush anything. You want to avoid any harsh chemicals or solvents so water is probably safest.
Why it usually is bad to get something wet is because water with trace impurities in it conducts electricity so it goes places it's not supposed to and shorts things out.

For the motherboard I left it stood on edge in the hot water cupboard for a week then blew dry air over it for a half hour or so with a fan, never expected it to go again but with nothing to lose I figured why not. I also had to take to the RAM contacts with a toothbrush to remove some corrosion.
dugimodo (138)
1390483 2014-12-18 03:37:00 Are you willing to risk blowing a motherboard or Monitor by using that dodgy vid card ?

Could it be from a very damp house, alot of airborne moisture being sucked into the PC .
And rust or corrosion on anything in the PC,any copper parts gone green ?
1101 (13337)
1390484 2014-12-18 03:39:00 Another observation from the cat pee incident - the case had a side fan with a plastic tube directing air to the cpu. The offending (and offensive) liquid was sucked in by the case fan and distributed around the case by the CPU fan and was all over the place. Where it made contact with some metallic parts they had begun to corrode.

I don't know what happened in your case but the point of the story is if any liquid gets near a spinning fan it gets spread very well.
dugimodo (138)
1390485 2014-12-18 04:16:00 Abandon ship!!!!!!! Its the Dreaded Lurgi!!! PJ Poppa John (284)
1390486 2014-12-18 04:29:00 Thing is location of the computer was in a very sunny room on top of the desk no sign of dampness. PC builder (15482)
1390487 2014-12-18 04:35:00 That looks like some sort of liquid has got in and then dried out leaving behind that residue.
For it to cover such a big area, is anything else inside the case covered in the same stuff?

The motherboard was fully covered in this stuff. RAM and hard drives also had traces of it.
PC builder (15482)
1390488 2014-12-18 04:43:00 The motherboard was fully covered in this stuff. RAM and hard drives also had traces of it. By any chance is there any sort of aerosol spray ( flies etc) or scent spray etc ?

Sounds more then its been sucked in Via the intakes, possibly over time.
wainuitech (129)
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