Please recommend quiet PSU

[TemjinGold]

Edit: I also see that the 7950 product pages state a minimum of 500W PSU is required. Do I need to worry about this when considering the 450W Rosewill?

No.

 

[Deders]

The 7950 itself won't pull more than 200W, the 500W figure takes into account that not all psu's can actually supply what they advertise. the Rosewill should be fine.

 

[JEDIYoda]

PC Power & Cooling PSU are the quietest on the market......huh...speak louder what did you say????

 

[mikeymikec]

Seasonic's PSUs have been pushed way beyond my typical budget in the UK, so I'm using Antec HCGs. The 400 and 520 are as quiet as I've expected from using Corsair VX450Ws for a long time.

I can't make any comments for how powerful a PSU you need because the most powerful GPU I've used is a 5770 on my VX450W (so far, no probs).

 

[antef]

I got an X-460 for my living room PC a few months ago to replace my S12II-380 (was on sale for $125 I think). Depending on how quiet your other components are, it might be worth it, but I doubt your video card is going to be quiet enough unless you change out the stock cooler.

However, empirically, my S12II was easily the loudest component when loaded up to maybe 150W (Radeon 4830 + undervolted Q8200 + 4 HDDs while playing movies). It didn't sound annoying, but was easily heard over 2xNoctua S12B at 500rpm + 1x800rpm S-flex. The 4830 is passive (Accelero S1). It was probably partially due to being temperature sensitive, as my case runs slightly warm. However, the X-460 eliminates the noise issue and based on most reviews, it is very hardy so running at 20C vs 40C is unlikely to make much difference.

So, if you have a very quiet PC with good fans running <800rpm, your PSU might be the limiting noise contributor, in which case a silent one would perhaps lower the noise ceiling, particularly if you're in the power range; the X-460 has 2 6/8-pin PCI-E connectors meaning it can power pretty much any single card. I have never tried hybrid PSUs (my builds never need that much power), but I'd rather be guaranteed silence than relying on specific conditions for silence; it also reduces the moving parts in your PC by one that is not exactly easy to replace.

I came across the S12II 430B while browsing today. So it was really the loudest part in your system? I have 2 front 120mm fans running at ~600 RPM, a rear 120 running at probably <1000, and the stock CPU fan running at about 1400 I think. I'm wondering if the S12II would be any quieter than the Rosewill CAPSTONE 450. They are both the same price (non-modular) except the SeaSonic shipping costs $10. The modular Rosewill is currently out of stock.

 

[Valis]

How efficient are these silent PSUs at say sub 100 or around 50W? I have an under clocked A10-5800K that takes about 40-50W idle, but the old crappy PSU I am testing it with almost consumes 10-20W by itself. So I need something new and efficient. 140W to 250 or 300W max. Any ideas? 🙂