replacing PSU fan.

[Yamiyanazz]

Mine is too noisy, can I replace it and make my PSU quieter?

 

[JimmyG]

Yes you can, but it will void the warranty.

 

[Mico]

Yes, replacing the PSU fan is doable. Simply remove the old one, and attach the leads from the PSU board to the new fan. (You can probably do a 'SEARCH' and find a more in depth walkthrough.)
Happy modding =)

 

[dalilman52]

actually i would not recommend attaching the new fan to the circuit board on the psu

i say this because the voltage going to the fan is thermally-regulated and it isnt running at full speed all the time, if u want quiet, i would suggest the h1a panaflo at 32 dba and 39.6 cfm, thats a pretty good noise/cfm ratio IMO, let that panaflo run at full speed and directly connect it to a molex and NOT to the psu's circuit board, i would rather have it blowing at full speed than have it not adequately cooling ur psu

 

[docinthebox]

Hope this is not a stupid question. But how do you get the fan lead out of the PSU case to connect it to a molex, while simultaneously able to put the cover of the PSU case (and the screws) back?

 

[Yamiyanazz]

I would guess you would just bend the metal of the PSU....and I don't believe I have a warrenty anyhow. haha

 

[Mico]

Yeah...you could cut a hole somewhere, or enlarge the one that is already there.

 

[fhanderson]

If you can't snake the wires thru the wiring grommet, you can remove it, open it up, place your wires, and reassemble.

 

[k3nshin]

or you could make you own hole on the sid of the psu, or the back

 

[dalilman52]

i routed the wire thru the hole where are te other molexes ome from

 

[dorimon81]

I would be interested in removing my PSU fan because it's so noisy, but I got a couple of questions as well.

1) By me removing my old fan and putting in a new silent fan, all I would have to do is snip the 2 wires that are going to the fan that's there now and tape them up and connect another fan to a motherboard header or molex right?

2) Will it damage my PSU?

3) Does the PSU fan really have to be on all the time?

4) Can I just turn the fan up higher when my system gets hot?

I think those are all the questions.

Thanks in advance.

 

[CrashOveride]

1. Yes but if your new fan is too quite (low CFM) you may run into problems with cooling since most good PSUs have thermally controlled fans. And I wouldn't snip the wires, if you have a nice PSU you can pull out the connecter and figure out a way to use a 3 pin or just end up snipping and splicing. Just make sure your splicing goes well and it won't just up and stop working on you.

2. Not unless you mess up, but it will void the warentee.

3. With modern day, high quality PSUs powering high quality systems, yes. Unless you have a lot of air being pushed out of your case and no were else for it to go out... You don't need a ton of airflow really, PSUs can get hot and still work, however when they do get too hot their voltages start to get unstable and drop. Essentially, yes.

4. Ya, if you put a Potentiometer in there or hook the fan up to a Baybus of sorts.

 

[dorimon81]

How many CFM's should a typical PSU fan have? 25-30?

 

[CrashOveride]

That I dunno, you could find out yours by looking at the info on the fan and searching online for it htough.

 

[dalilman52]

the PC P&c 510 deluxe has around 45 cfm so that should be ur max cfm for the fan u want to buy

i would recommend the M1a 80 mm panaflo

 

[dorimon81]

My PSU is 32 CFM's, or so the maufacturer says, so if I were about 5 CFMs off from the original PSU fan, would it still work properly? Could I even do a 7 or 5 volt mod on it? I just don't want to screw my computer up for nothing.

 

[CrashOveride]

Ya, it should work fine. If I wanted to be sure I would get my voltages before, change or mod the fan and then get themafter, if they fluxuate a lot more or are lower then you should probably put the other one back.

 

[dorimon81]

Ok, guys thanks for the help. Just one more quick question. How long would it take to fry the PSU if it wasn't getting sufficient cooling? About half an hour?

 

[CrashOveride]

Um... my friend's PSU died and it ran for hours before he noticed instablity in his system, but it wasn't OCed either...

 

[dorimon81]

Nothing in my system is overclocked so would this mean I have a better chance of replacing the existing PSU fan with a new and silent PSU fan with less airflow?