Quiet PSU - Advice Sought

robbo100

Well-known Member
Chaps and Chapesses,

I know this question will have been asked a million times before, but since there are always new models and changes in prices (special offers etc), I thought I would ask the question afresh.

I am currently using a cheapo PSU in my HTPC (in a Antec Fusion case), and it is far too noisy. I have not got much money to spend, but I want to upgrade my PSU and wanted some advice as to what is the best value for money vs quiteness. I.e. what do people recommend that I buy for around the £40 price point.


System Background

I have got a Scythe Scrunken Rev.B fitted to my AMD X2 265 (which is pretty silent and only kick in when my CPU gets hot) and my ATI5450 is passively cooled. Other than the case only has memory and a hard drive (so my power consumption is pretty low). Although I probably shouldn't, the case is run completely fan-less (other than when the Scrunken is on) and my temps seem fine.

Thanks

Robbo100
 

LJx

Well-known Member
You can get a Corsair CX430 for about 35 I think and it will be much quieter than a cheapo one like those that come free with cases. Thats the only one I have personal experience with that is under 40
 

robbo100

Well-known Member
Thanks LJx.

Any more suggestions? I don't mind going slightly above £40 if it means I can get something really really quiet.

Robbo100
 

AMc

Distinguished Member
I fitted a Be Quiet PSU which doesn't claim silence but certainly lives up to its name - you can just hear the fan with the case off and your ear up to it.

I can't hear it above the stock AMD CPU fan which I really should replace.
 

JohnyM

Novice Member
Hi I’d stay well clear of Corsairs lower end PSU’s. I had a CX430 in my main rig for a few months and although it was very quiet when it was on it squealed like hell when the system was either off or in standby…..very very annoying. I tried two and both were the same so it wasn’t just a one off.

Currently using an XFX Pro 550w and OCZ Fatal1ty 550w, the XFX is pretty quiet but the OCZ is silent. Both can be found for under £50.
 

teknokat

Novice Member
Seasonic PSU's always score well in the quiet stakes and having one in my machine I can highly recommend them for really low fan noise. Not sure how much they are these days tho as it's a few years since I built my machine
 

spacemanc

Active Member
Seasonic PSU's always score well in the quiet stakes and having one in my machine I can highly recommend them for really low fan noise. Not sure how much they are these days tho as it's a few years since I built my machine

I know that we always pay more in the UK, but these PSUs seem to be seriously cheaper in the US :mad:

Anyway I can recommend two PSUs - the cooler master 500w silent pro is outside your price range but, I'll mention it as it's great quality and is also modular.

I also have a Earth Watts 500w in an Antec Sonata case, which is "silent", 80+ and very well regarded. I've been running one almost 24/7 with pretty heavy use for 3+ years now without a problem. All of these Earth Watts PSU's seem worthy of a look:

earth watts 500w - Google Search

Again, outside your price range, and probably too much power, but these are great deals for an 80+ Gold:

600W be quiet! Efficient Power 80PLUS Gold ATX2.3 Power Supply - Aria PC

They were actually £49 a couple of days ago.
 

spacemanc

Active Member
As you know I'm in the process of building a PC with similar specs to yours, and I've also considered a system with an ATI 5450 - I remember reading a review of the 5450 where they said you need a 350w PSU - but the rest of their test system was a "normal" PC - so 350w should be plenty for you. That 400w Be Quiet! looks like pretty good value, but I'm also looking at these:

http://www.ebuyer.com/173800-be-qui...m-bn133?utm_source=google&utm_medium=products

http://www.scan.co.uk/products/400w...ce=google+shopping&utm_medium=google+shopping

http://www.awd-it.co.uk/xigmatek-400w-quiet-psu-power-supply-unit-nrp-pc402.html

http://www.ebuyer.com/173801-be-qui...m-bn134?utm_source=google&utm_medium=products

http://www.overclock3d.net/reviews/power_supply/be_quiet_350w_sfx_power_psu/4

http://www.ebuyer.com/269179-cougar...ar-a400?utm_source=google&utm_medium=products

http://www.dabs.com/products/zalman...le&utm_medium=product+search&utm_content=Q200

The 300w and 350w Be Quiets! look very interesting. Although they don't seem to be 80+ cert, this review seems to show they are around 85% efficient at around the power you would expect to be using:

http://www.overclock3d.net/reviews/power_supply/be_quiet_350w_sfx_power_psu/4

They're nice and cheap too.
 

an1m4l

Standard Member
Is vibration ever an issue with 'quiet' fans? I'm looking at fanless due to the lack of moving parts but I'm also considering quiet fanned units.
 

robbo100

Well-known Member
Noise is the byproduct of vibration, so if any item is quiet, then by definition it will be very low vibration.
 

bryanchicken

Novice Member
As you know I'm in the process of building a PC with similar specs to yours, and I've also considered a system with an ATI 5450 - I remember reading a review of the 5450 where they said you need a 350w PSU

I read the same thing when i was getting a 5450. However, i've since had it running in a system with a 220w psu and also using a 150W picopsu. No issues whatsoever.
The 5450 actually uses very little power. Not sure why they recommend such a beefy psu
 

spacemanc

Active Member
I read the same thing when i was getting a 5450. However, i've since had it running in a system with a 220w psu and also using a 150W picopsu. No issues whatsoever.
The 5450 actually uses very little power. Not sure why they recommend such a beefy psu

Yeah in the review, they actually said that the 5450 uses around 22w iirc, so my point was that 350w is more than enough. 300w would cover all systems I would have thought and thats what I've bought. 150w would be pushing it unless the whole system is very efficient, though I'm sure that yours is. As I understand it, PSU's are at their least efficient when under very heavy or very light load, and the 80+ certification only covers 20% - 80% load.
 

robbo100

Well-known Member
I have this psu

http://www.scan.co.uk/products/400w-...oogle+shopping

My Scythe shuriken cooler makes more noise.

David

I saw this post and thought I would see how much noise my Shuriken makes, and it is actually quite a lot. I have got some fans on another PC which have potentiometers connected to them and I have manually turned the fan speed down and it has improved quite a lot. I have now added a very slow running case fan (because my GPU was running just above 90 deg C, which is a little high for my liking (it is now back down at 75 deg C). Even with this case fan, the total noise is now lower (due to the reduction in Shuriken fan speed.

I would say that my PSU accounts for half the noise now, so changing the PSU would still be beneficial for sure!
 

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