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 No.1000179>>1000191 >>1000192 [Watch Thread][Show All Posts]

I want to open up my computers power supply to fix a loud fan that is on overdrive because a heat detection component in my cheap psu suffers electrical failure in temps below about 15C. How likely am i to die? What components retain power after being unplugged? My extent of info about psus is that some parts are made to retain power and grounding the entire unit will break it.

Will it be valuable experience to at least have an exploratory look around a psu or should i just buy another £30 pos?

I am not going to spend real money on a proper psu when my gaming rig is rated at about 300 watts and corsair units with the exact same wattage are nearly 3 times the price.

My room is very cold and my cheap power unit has lasted nearly 8 years with no problems until now, i get a bluescreen every now and again but all i have to do is heat my room up and the computer runs flawlessly.

I work for dodgy arabs fixing broken computer parts, soldering broken toshiba graphics cards back onto their copper ducting and replacing broken batteries and fuses is about the extent of my computer repair ability.

 No.1000183>>1000189

I am asking here because i go on tech forums like toms and newegg and all i see are people shilling power units under the pretense that it is dangerous to fix yourself. Is this true? One of the old arabs i would work with used to "repair" broken elements of psus by ripping disfunctional parts out using pliers, was this man retarded or is it actually that easy?

Bearing in mind i sm not retarded enough to work on a units without grounding myself and or unplugging it.


 No.1000189

>>1000183

>high voltage high current electronics

Everyone's a pussy. It's totally safe for people to have fun with their power units. Trust me, I'm an electrical scientist.


 No.1000191

>>1000179 (OP)

unless you have to pay for shipping, go ahead and fix that power supply


 No.1000192

>>1000179 (OP)

I've switched out a bad PSU fan before. Just don't touch the capacitors. Try not to touch anything really. You will want to have a blow dryer on cool to blow out all the dust. There was a tiny three prong connector on the fan with two wires. I had to unsolder the old fan and reuse the wires because the replacement fan had a different plastic connector. You'll want to measure it to be sure its the right size and google the info on the tiny sticker in the middle to locate a replacement. It wasn't a standard case fan size.


 No.1000199

Short your caps with a low resistance resistor (a few ohms). After that you're fine.


 No.1000259

pull the power cable while the computer is running, it'll also unload those primary caps pretty quick. If you are very worried, just wait a day or two. The chance of a residual charge left is very low.

Some of the cheap supplies layouts are pretty fucky. Be careful you don't short something, or damage a cable or stuff like that. Danger of fire because of a improperly put together power supply is quite real.




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