Change psu fans

[Innocent159]

Hey the psu fan is on its last and I want to know if its possible to swap the fan? I don't know the brand of the psu. I have open it but i want to know if someone has tried swapping a psu fan.

80mm fan i think. Psu still works 100% just fan noise thats annoying

 

[mArTyN]

**be careful what you touch inside the psu** !!!

Have you tried oiling the fan bearings ?

 

[RamboOC]

Be vey carefull, try to discharge the capacitors as much as possible first.

The fan in you psu probably has a 3 pin connector

 

[Innocent159]

Be vey carefull, try to discharge the capacitors as much as possible first.

The fan in you psu probably has a 3 pin connector

cant i just unplug the fan?

**be careful what you touch inside the psu** !!!

Have you tried oiling the fan bearings ?

what kind of oil? the fan is lose? *update via smart tv

 

[RamboOC]

cant i just unplug the fan?

Yes, you can unplug the fan, its probably the standard case fan with 3 pin connector

 

[Wraith]

If your going to attempt this, I'd excersize extreme caution. Don't go grabbing or touching ANY contacts or capacitors also you'll tend to find PSU fans are of the 90mm flavour with a 2 or 3 pin standard connection. Always remember it's not the voltage that hurts it's the Amperage.

If your unsure don't attempt it.

 

[Innocent159]

If your going to attempt this, I'd excersize extreme caution. Don't go grabbing or touching ANY contacts or capacitors also you'll tend to find PSU fans are of the 90mm flavour with a 2 or 3 pin standard connection. Always remember it's not the voltage that hurts it's the Amperage.

If your unsure don't attempt it.

Okay thanks for the warning will open and have a look and don't worry I won't touch. Have been hurt=00=

 

[RamboOC]

If your going to attempt this, I'd excersize extreme caution. Don't go grabbing or touching ANY contacts or capacitors also you'll tend to find PSU fans are of the 90mm flavour with a 2 or 3 pin standard connection. Always remember it's not the voltage that hurts it's the Amperage.

If your unsure don't attempt it.

Not true - Skin resistance. I can have a power supply hat outputs 500a on the 12v rail, but it won't hurt me

But yes, take extreme caution opening the power supply, because if you end up touching the 230v/110v side of things, things can end badly, even if the psu is unplugged the caps may still be charged enough to cause serious harm

 

[mArTyN]

what kind of oil?

If you are going to try it, use a very light grade of oil......sewing machine oil is a good choice.

 

[Innocent159]

Not true - Skin resistance. I can have a power supply hat outputs 500a on the 12v rail, but it won't hurt me

But yes, take extreme caution opening the power supply, because if you end up touching the 230v/110v side of things, things can end badly, even if the psu is unplugged the caps may still be charged enough to cause serious harm

Thank u for your concern

If you are going to try it, use a very light grade of oil......sewing machine oil is a good choice.

Fish oil? Hair clipper oil?

 

[shambles1980]

hi.. unplug your power supply from the wall. then try to turn your pc on a few times. and for good measure let it sit in the pc for 5-10 mins without being plugged in at the wall..
this should help discharge the caps.

honestly you will know about it if they discharge in to you.

 

[Innocent159]

hi.. unplug your power supply from the wall. then try to turn your pc on a few times. and for good measure let it sit in the pc for 5-10 mins without being plugged in at the wall..
this should help discharge the caps.

honestly you will know about it if they discharge in to you.

Lets hope that won't happen. Thank you will do it next weekend

 

[YouWhat]

The fans are usually soldered direct to the board, but other than that it should be a straight swap as they are just standard fans inside them.

If you cant to be certain you have fully discharged the PSU, then grab a bit of wire and connect any of the 12V leads and touch the case with the other end while it is still plugged in but switched off, this will fully discharge it to ground and will not harm anything (except if it still live then it will trip any RCD breakers you have.

 

[Xrqute]

You'll feel 24V if your hands are sweaty or your skin is broken.

think of electricity like this.

Water flowing through a hose- (Current= Amp= I) (Voltage=Volts=V)

Think of I as the amount of water thats physically in the hose.

Think of V as the pressure/force pushing the water through the hose.

So current it essentially the amount of electricity and voltage is how hard its being pushed down the line.

 

[Dark NighT]

To be honest, unless there is a fan header i wouldnt bother trying to replace it and rather just buy a new psu, like the corsair RM series, those fans dont spin up when there is little to do, and even if they spin they are pretty quiet.

How old is that psu anyway, it has been a while since most mainstream supply's had a 80 or 90mm fan.

 

[Innocent159]

The fans are usually soldered direct to the board, but other than that it should be a straight swap as they are just standard fans inside them.

If you cant to be certain you have fully discharged the PSU, then grab a bit of wire and connect any of the 12V leads and touch the case with the other end while it is still plugged in but switched off, this will fully discharge it to ground and will not harm anything (except if it still live then it will trip any RCD breakers you have.

Thank you this is helpful. Lets hope I don't shock or break the psu

You'll feel 24V if your hands are sweaty or your skin is broken.

think of electricity like this.

Water flowing through a hose- (Current= Amp= I) (Voltage=Volts=V)

Think of I as the amount of water thats physically in the hose.

Think of V as the pressure/force pushing the water through the hose.

So current it essentially the amount of electricity and voltage is how hard its being pushed down the line.

You trying to scare me?

To be honest, unless there is a fan header i wouldnt bother trying to replace it and rather just buy a new psu, like the corsair RM series, those fans dont spin up when there is little to do, and even if they spin they are pretty quiet.

How old is that psu anyway, it has been a while since most mainstream supply's had a 80 or 90mm fan.

Uhm +-6years old. I'm buying a new pc that's why i am not keen on replacing the psu but maybe that's the best option

 

[RamboOC]

You trying to scare me?

No, He is trying to tell you that if you touch the 12v part (like i did mannnnny times) you wont feel anything no matter how many amps. you should start to feel something at 24v

Although You seriosly have to watch out and be cautious not to touch the 230v/110v part because it can seriously hurt you.

give me a sec i will shoot a photo of my psu i use as a lab psu

 

[Wraith]

You trying to scare me?

Nope, he was trying to explain Ohm's Law

 

[Xrqute]

Nope, he was trying to explain Ohm's Law

not really wrath. I was trying to explain in laymen terms what the difference between Current and Voltage is. ohms law doesn't really explain what they actually do within a circuit.

Ohm's law explains how they mathematically relate and given you know 2 of the values you can work out the third using ohms law.

I spent years studying this crap..... electrician by trade.

No, He is trying to tell you that if you touch the 12v part (like i did mannnnny times) you wont feel anything no matter how many amps. you should start to feel something at 24v

Although You seriosly have to watch out and be cautious not to touch the 230v/110v part because it can seriously hurt you.

give me a sec i will shoot a photo of my psu i use as a lab psu

All it takes its 0.33A directly across the heart to cause cardiac arrest if you have a weak ticker!

My advice. If you don't know what your playing with don't play with it.

or

alternatively use tools don't touch anything with your hands just to be on the safe side.

 

[RamboOC]

The psu that is apart in my photos actually has a soldered fan wires.

^^ qucik job without electrical tape and solder had to join some cables, don't copy me