_Dominiko_PL
TITS or gtfo.
+97|6788|Polish state of EU
My PSU has 120mm fan, what if i would like to replace it? Is it easy? Can i buy any 120mm 'chassis' fan and it will fit in PSU? Thx
CrazeD
Member
+368|6940|Maine

_Dominiko_PL wrote:

My PSU has 120mm fan, what if i would like to replace it? Is it easy?
It's fairly easy, as long as you know how to cut and splice wires.

_Dominiko_PL wrote:

Can i buy any 120mm 'chassis' fan and it will fit in PSU? Thx
Yes, any fan will work provided it has room. Some PSU's use skinny fans, so regular size fans won't fit. If your PSU uses a regular-depth fan, then yes any standard 120mm chassis fan will work. If it uses a skinny fan, you must buy a skinny fan.

Keep in mind though that the capacitors in a power supply can hold a very large charge for a long time while unplugged. Long time as in weeks, possibly months. Enough of a charge to potentially kill or injure you. You can drain the capacitors with a large resister (like one in a multimeter) or buy attaching a device that draws power, such as a fan or a lightbulb (note that you must hotwire it first (jump the green and black wire on the ATX connector).

It is entirely possible to replace a fan without ever getting zapped, however, don't touch the capacitors, the heatsink, or any circuits on the mainboard. Just words of caution, I've replaced tons of PSU fans without any incident.
jamiet757
Member
+138|6890
Be aware that if you open the PSU, you void any warranty that you may have on it.

CrazeD wrote:

Keep in mind though that the capacitors in a power supply can hold a very large charge for a long time while unplugged. Long time as in weeks, possibly months. Enough of a charge to potentially kill or injure you. You can drain the capacitors with a large resister (like one in a multimeter) or buy attaching a device that draws power, such as a fan or a lightbulb (note that you must hotwire it first (jump the green and black wire on the ATX connector).

It is entirely possible to replace a fan without ever getting zapped, however, don't touch the capacitors, the heatsink, or any circuits on the mainboard. Just words of caution, I've replaced tons of PSU fans without any incident.
I have never had any problems like this, after you unplug the PSU, wait for the motherboard light to go out.
_Dominiko_PL
TITS or gtfo.
+97|6788|Polish state of EU
OK, thx for answers
TheEternalPessimist
Wibble
+412|6887|Mhz

It's as simple as replacing any other fan usually, 80% of PSUs just have 3pin plug fans, pull one off put the other in done, worst case scenario it's soldered on, you can strip the current wire and attach the new fan there and put electrical tape or heatshrink round it or solder the new fan on the same way the current fan is.

As for the scaremongering about danger of death in PSUs, it's complete ass, yes things in there carry a huge charge but to actually get a shock from it you'd have to go around stabbing bits with a screwdriver with a metal handle and even then it's not guaranteed.
CrazeD
Member
+368|6940|Maine
Still possible, so thought I'd throw out the warning.

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