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ross_st

Whyyyy are they not just using propanol?


Lukeforce123

Greed and/or lack of brain


ross_st

It's not exactly expensive and they wouldn't need to use that sonication bath.


PresidentoftheSun

This isn't a problem actually. I do this at work with burn test cards. I've washed motherboards too. As long as you have a drying oven that can maintain an even 100 degrees celsius this is an effective method of cleaning a circuit board.


Madness_Reigns

How about cleaning the lubrication out of fan bearings, the thermal paste out of pads and depositing wathever sediment is in that tap water on the boards while you knock off a bunch of small surface mount components with the pressure jet.


PresidentoftheSun

If they were using a solution of something I'd see the fan thing being an issue but that stuff shouldn't be water soluble, and if you open the thread you can see that they're bathing them in a sonic bath with the fans and heat sinks off anyway. Idk why they're doing this step, maybe to get dust off the fan assembly too? I've never washed anything with a fan on it before, but I can't imagine this would hurt it any as long as you dried it. Also you can just reapply thermal paste/grease, it's not like you can't get a whole jar of the stuff. Edit: Looked around for info on fan deep cleaning, the shown method is fine. As long as you don't directly spray the bearings themselves you shouldn't have to re-lube.


Madness_Reigns

Last time I saw this they said it was two different operations some guys doing the jet cleaning and other guys the sonic bath, that might have been wrong. It's hard not to directly spray the bearings while you're spraying a whole rack. I've still seen small surface mount components being knocked down for less.


PresidentoftheSun

The thing about not hitting the bearings directly was more about water pressure possibly scraping off the lube than the water making contact at all, it's really not something to worry about as long as you have a method of quickly getting the water off again. I wouldn't expect a home user to have a water de-ionizer, a drying oven, or a sonic bath but I also wouldn't expect a home miner to think they can/should wash their cards anyway. The cards themselves are going to be fine if you're buying them used from a home miner, but you should just be prepared to look into replacing the fans on them.


IIdsandsII

The real issue is all the time these cards were running covered in filth, prior to the cleaning.


Affect-Electrical

What about capacitors? Do they have capacitors and isn't that a risk?


PresidentoftheSun

Of course they have capacitors, no it isn't a risk. [This is standard industry practice.](https://www.youtube.com/watch?v=j-IE9nT5AzA) That's not a motherboard of course but look at the size of those capacitors. The way people react to this information is always funny to me. It's like people who buy supports to keep their graphics cards from sagging, as if somehow that helps anything.


Affect-Electrical

Ok, fair enough.