Any experience with Fanless Seasonic Platinum PSU?

alexb75

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Oct 12, 2004
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I am building a quiet system and using as quiet of components as possible. I mostly care about idle noise, and have found a great deal on Seasonic SS-520FL2 520W which is *fanless*!

Any issues with that PSU? It's Platinum, modular, and has enough power for me... would it cause any overheating issues if gaming?

System:
- i7-4790K OC to 4.2 GHz
- Asus Z97-Pro mobo
- Noctua NH-U12S
- Lian-Li PC-B12 silent chassis (2 * 140 front, 1 *120 rear)
- R9 270 DirectCU GPU
- 8GB DDR3-2133
- 2*3TB HDD + SSD

Thanks
 
Solution
Delivered 110% load at 43°C with 92.5% efficiency yes at 43C wtf
Superb ripple-suppression
Tight voltage-regulation
Highly efficient
Fanless
Japanese (electrolytic) caps are used everywhere
Fully modular
Seven-year warranty

the only negative are that it initiates a shutdown at very low temperatures. wow this unit is overly safe.

also not enough pcie connectors, ohh wait it is modular so you could order more cables if needed.

i am not a jealous person but this is a beautiful unit. truly a manufacturing marvel.

Ripple suppression is superb, even with the stress we applied to the PSU during testing. Seasonic has, once again, done an excellent job of assembling a ripple-proof platform that delivers ultra-clean outputs in every case...


750 is an overkill for what he is doing. the power supply he is looking at will work closer to its most efficient and is appropriate for his build


don't get me wrong i love xfx (they are seasonics afterall)
 


absolutely and I agree that there are great options for PSU with fans, hte review for his PSU are ridiculous really. it performs at 110% without issue, just another amazing product by seasonic.
 
Delivered 110% load at 43°C with 92.5% efficiency yes at 43C wtf
Superb ripple-suppression
Tight voltage-regulation
Highly efficient
Fanless
Japanese (electrolytic) caps are used everywhere
Fully modular
Seven-year warranty

the only negative are that it initiates a shutdown at very low temperatures. wow this unit is overly safe.

also not enough pcie connectors, ohh wait it is modular so you could order more cables if needed.

i am not a jealous person but this is a beautiful unit. truly a manufacturing marvel.

Ripple suppression is superb, even with the stress we applied to the PSU during testing. Seasonic has, once again, done an excellent job of assembling a ripple-proof platform that delivers ultra-clean outputs in every case. This means that your sensitive components will only be stressed minimally, which translates into a far more stable operation, even with heavily overlocked system components.

i could go on but it is all in that article.
 
Solution
Ok, maybe I am crazy, but what about Seasonic X-series X660 or X650 (not sure what's the diff between the two)? They run silent at low loads, and only turn the fan on when there's enough demand.

Would those give me more headroom being 650/660 watts? and just never worry about over-heating of fanless? Definitely not as efficient, but quite close, thoughts?

PS. I'd NEVER go dual-GPU, or am going to go crazy OC or anything like that, the only future mods would be two more DDR3 modules, another HDD, a Wifi AC card, and possibly the next gen Intel CPU, so not sure if I need 650+ watts ever?
 
http://www.hardocp.com/article/2011/03/23/seasonic_xseries_x660_power_supply_review/6

that 660 model is the fourth generation model and is a great unit also. you really will not go wrong with any of the seasonic models.

so with your overclock your system power usage excluding your card will be 150-200 max.

http://www.anandtech.com/show/8227/devils-canyon-review-intel-core-i7-4790k-and-i5-4690k/2

so this would give you a max gpu usage of 300-350 watts (no GPU uses more power than this). really that 500 watt is plenty of juice since the odds of you having everything maxed out at once is actually very difficult to do.

the last thing is that PSU perform more efficiently the closer they are to max power rating. if you go back and look at the reviews I posted you will see a power efficiency curve in there someplace.

i think the warranty is longer on the fanless one also