What to look out for if water is in PSU

[HonestyLL]

I left my PC beside an open window when it rained (was rushing out of the house to help with an emergency). 

When I got back the side of my PC was really wet but after inspecting the internals, the side panel looked to take most of the water and the inside of the PC was dry. 

I immediately cut power to the power bar and dried the drenched table and everything connected. 
I didn't believe any water should have gotten into my system so after unplugging the system and throwing lots of silica packs into the system and blowdrying the PSU for a few minutes I powered it on for abit to see if there was anything off (this was because I thought everything was dry). After a minute or two, I began hearing a low humming sound I've never heard from my system before. 

I've since, shut down the system, took out the PSU unit and threw it in a bag with some silica packs. 

 

I am wondering how to figure out if my PSU has been water damaged. 
How long should I keep my PSU in the silica drying bag for, and what symptoms would appear if it was water damaged?

 

[rippy4500]

Probably a couple days but ive never used this method to dry electronics so idk.

 

One thing I do know for sure is keep it powered off until then, you risk doing further damage. Also attempt to dry any other components you think could have water inside, like IO on the motherboard.

 

Also move the pc to a safer location if possible so it doesnt happen again.

[Somerandomtechyboi]

Drying takes 2-4 days (i dunk boards in water as a last resort to fix em so thats how i know), but im not sure if silica packs do anything (prob not)

 

As long as its fully discharged there shouldnt be any damage

[HonestyLL]

4 minutes ago, rippy4500 said:

Probably a couple days but ive never used this method to dry electronics so idk.

 

One thing I do know for sure is keep it powered off until then, you risk doing further damage. Also attempt to dry any other components you think could have water inside, like IO on the motherboard.

 

Also move the pc to a safer location if possible so it doesnt happen again.

Sadly the lay out of my room doesnt allow for that. Im just going to never open the window again!!!

[jaslion]

6 hours ago, HonestyLL said:

Sadly the lay out of my room doesnt allow for that. Im just going to never open the window again!!!

Leave the system to dry for a couple days.

 

You can protect it by puttinf a small table, sheld,... whatever over it Just have a good gap for airflow.

 

-a fellow pc is at the window person thats gotten it wet many times

[Sarra]

Get a tub of RV desiccant, pop the top off it, get a plastic tub that has a gasket seal large enough for the PSU and the RV dry, toss 'em both in for a few days, and that'll dry it out 100%.

[Mick Naughty]

I tend to lay the parts in front of my space heater for a few hours. If it’s just water. If not I use alcohol to clean then dry it.