Question PSU slow fan, loud noise on start up

[Que159]

It always does this every time I turn my pc on, it started about a week ago. It becomes okay after 2-3 restarts.

Video

 

[Karadjgne]

Replace/rma the psu. It's not advised to tear it apart and replace the fan, but it's an option. Just get the right kind of fan, one that's close in specs or better to the original.

 

[Que159]

Any other temporary fix ?

 

[Karadjgne]

The voltages inside a psu are potentially lethal. Unless you are compenant to pull apart a psu and replace the fan, don't do it.

What's happening is dirt has gotten in the bearings or the 'grease' has gotten out or a combination of both leading to thicker than normal grease, which thins out with heat. 2-3 restarts is currently enough to have the fan create enough friction to 'melt' the grease and let the fan spin as it should.

Fan + friction = reduces lifespan. Friction creating heat = burned out motor/contacts = reduces lifespan.

There is no 'temporary' solution or fix, there's only the waiting period before the fan fails fully and the psu overheats and dies before you know it's happening because you are in mid game with headphones on or high rpm case/cpu/gpu fans drowning out the sudden stoppage and loss of minor fan noise from the psu.

The only thing you'll notice is a small flash of light, a funky smell from the pc and a glaring black screen. And, the power button does nothing.

Replace the psu or change the fan. Your choice, but better be done before the psu dies as there's always a chance it'll take out something else when it goes, and the cheaper quality the psu, the exponentially higher the chance.

 

[DSzymborski]

And while it's hard to say, from the cheapness of that grill, I imagine this is a fairly junky PSU anyway. They're never worth repairing.

 

[Que159]

The voltages inside a psu are potentially lethal. Unless you are compenant to pull apart a psu and replace the fan, don't do it.

What's happening is dirt has gotten in the bearings or the 'grease' has gotten out or a combination of both leading to thicker than normal grease, which thins out with heat. 2-3 restarts is currently enough to have the fan create enough friction to 'melt' the grease and let the fan spin as it should.

Fan + friction = reduces lifespan. Friction creating heat = burned out motor/contacts = reduces lifespan.

There is no 'temporary' solution or fix, there's only the waiting period before the fan fails fully and the psu overheats and dies before you know it's happening because you are in mid game with headphones on or high rpm case/cpu/gpu fans drowning out the sudden stoppage and loss of minor fan noise from the psu.

The only thing you'll notice is a small flash of light, a funky smell from the pc and a glaring black screen. And, the power button does nothing.

Replace the psu or change the fan. Your choice, but better be done before the psu dies as there's always a chance it'll take out something else when it goes, and the cheaper quality the psu, the exponentially higher the chance.

My case doesn't have a grill above, is it okay to buy a PSU with the big fan?

 

[Karadjgne]

The grill shown in the video isn't a grill, it's part of the case lol. That's the exhaust port. From the looks of it, it's a pre-built sff pc, mini-tower and the psu is most likely a TFX form factor, in which case you'll pretty much need an exact replacement.

For that, you'll need the exact brand and model/year of the pc.

 

[Que159]

The grill shown in the video isn't a grill, it's part of the case lol. That's the exhaust port. From the looks of it, it's a pre-built sff pc, mini-tower and the psu is most likely a TFX form factor, in which case you'll pretty much need an exact replacement.

For that, you'll need the exact brand and model/year of the pc.

Yes the psu came with the case other parts were picked. So to replace this I need the same psu? (I still think it will work with other psu tho, it has screws in it, its not sticked in the case)

 

[Que159]

Yes the psu came with the case other parts were picked. So to replace this I need the same psu? (I still think its will work with other psu tho, it has screws in it its not sticked in the case)

I might need to double check this..

 

[Mr. Smith]

It always does this every time I turn my pc on, it started about a week ago. It becomes okay after 2-3 restarts.

Video

Coil whining sound , change the unit.

 

[Que159]

Coil whining sound , change the unit.

I'm still asking the person from where I bought this case from if the psu is replaceable cuz the psu is already pre built.

 

[DSzymborski]

If you actually told us something about your PC, we might be able to help.

 

[Que159]

If you actually told us something about your PC, we might be able to help.

The problem is already identified actually, just gotta replace the psu or I might buy a new case and psu