Replacing PSU fans

no_1_dave · 13 May 2009 at 00:52

Here are some pics of the inside of the PSU (half way down):
http://www.pcper.com/article.php?aid=361&type=expert

Which 80mm fans would be best to sit in their instead?
The PSU hasnt arrived yet but later in the review it mentions they're loud!

Was looking at Noctua but they're quite a bit more then all the others... which are out of stock here.
Would Xilence be ok or would the small CFM be a bad idea for PSU fans?

I guess I would also need it to be 2pin not 3 unless I use a 2-Pin to 3-Pin Fan Adapter Cable

BarKeep · 13 May 2009 at 12:06

You will invalidate the warranty by removing the cover, let alone changing the fans.

If you want quiet why didn't you order a quiet PSU?

reflux · 13 May 2009 at 12:09

Yup, do you really want a voided warranty on the most important part in your system?

4T5 · 13 May 2009 at 12:10

As above, What the **** are you thinking ???
Just buy a Quiet PSU don't go messing with a Brand new Item/Warranty it's Madness, Especially with a PSU they should be Well left alone.

no_1_dave · 13 May 2009 at 14:08

It looks easy, just take the lid off, unscrew old fans, replace with quiet fans, put lid back on!
Got the psu on the mm at a good price, can't afford a 1000w silent psu.

Which fans would be best? One needs to be just 15mm deep.

Cristian · 13 May 2009 at 14:18

Be very careful what you touch, you can get some serious electric shocks.
even if you do it, be sure to check if the air is too hot under full load for the first 2 or 3 days. if it is, then you've got a problem.

Admiral Huddy · 13 May 2009 at 14:24

Sod invalidating the warranty - this is your life we are talking about here. Never touch the inside of a PSU without properly discharging with the correct equipment. They are FRPs. just buy another.

no_1_dave · 13 May 2009 at 14:35

I appreciate everyones concern but I don't feel I will be touching the inside of the psu, only sliding the old fans out and new fans in. I won't touch anything else! So in your opinion which new fans would be best?

AtaRo · 13 May 2009 at 14:36

Besides vioding the warranty PSU fans are chosen by manufacturers to move a certain amount of air inside the PSU to dissipate heat now if you change the fans with a quite one but is not able to do the requirement set by the manufacturer then your PSU might overheat or run outside of specs w/c is not good.

no_1_dave · 13 May 2009 at 14:51

Which is why I asked what the best fans would be as I need high cfm but don't want the noise.

Bradley8988 · 13 May 2009 at 15:18

Iv taken a fair few apart and never had a problem.

BarKeep · 13 May 2009 at 15:19

If you must continue, the best way is to read the details from the existing fans, Goggle to find the specs and then find the lowest noise fans that have the same or higher throughput.

Don't forget that PSU fan noise is also a function of load. i.e. If the PSU is heavily loaded and the fans are speed controlled according to temp. the fan speed and noise will increase.

Looking at your current spec. I can't think why you need a 1000 watt PSU, unless its just bragging points.

no_1_dave · 13 May 2009 at 15:26

Upgrading the rest of my pc.
Hmm, not much info exists aboutthe current fans.
I need good cfm and not a lot of noise, any ideas? One also needs to be only 15mm deep. I have found 2-3 pin adaptors for 99p.

Bradley8988 · 13 May 2009 at 15:29

I just stuck either a noctua or low yate loon and worked fine. Going to be replacing my silverstone psu fan with a cluster.

PhillyDee · 13 May 2009 at 15:43

You will also need to cut and rewire the fans. They tend not to be standard 3 pin connections.

spleenharvester · 13 May 2009 at 15:51

I highly advise you DO NOT do this, the charge they hold is enough to kill you...

no_1_dave · 13 May 2009 at 15:52

99p for a 2-3 pin fan adaptor.

no_1_dave · 13 May 2009 at 15:54

It's a new psu so shouldn't hold a charge plus I won't touch the inside apart from the plastic fan

spleenharvester · 13 May 2009 at 15:56

no_1_dave said:
It's a new psu so shouldn't hold a charge plus I won't touch the inside apart from the plastic fan

It may have been tested at some stage however.

Bradley8988 · 13 May 2009 at 16:02

They run the same pins to you just swap the connector from the old fan onto the new fan. Theres no reason to touch any of the parts inside other than the fan.