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PSU fan is the loudest component in my system when gaming!

post #1 of 6
Thread Starter 
Hello, I'm here regarding a psu i bought a few months back.
I'm using a XFX Proseries 850w, for supporting two r9 290's in the future, right now I'm just using one.

I do like the performance of this psu and it did a lot better than my previous corsair cx 600. However... The fan on the PSU is VERY loud when I put load on the system, primarly the GPU since an r9 290 will pull a little over 200w when gaming. I've checked every fan and I know it's the PSU as I can even hear it clearly, It's a lot louder than the rest of the system. I've also tried letting the PSU blowing air into the case instead of out. By mounting it differently.

I've mounted the psu in the bottom of my fractal design define R4 with the psu blowing air downwards. (out of the pc. Didn't know psu's blew air out of themselves instead of taking air in.)
So I need to know:

Is this just a bad fan or is it supposted to go this fast? I Know that psu's generally shouldn't be to loud, atleast not the loudest component in the system. I may consider replacing it since I want a quiet system.

Specs:
FX-8350 @4.75Ghz @1.45v
R9 290 windforce @1150mhz/1350mhz
GA-990FXA-UD3
Corsair CL9 1600mhz 8gb
XFX Proseries 850w bronze+ certified at 85%
CPU cooler: Corsair H80i

Need a lot of advice here! Thanks in advance!!
post #2 of 6
PSU fan speeds often spin very quickly when you surpass a certain power draw target. This is to keep the PSU under safe operating temperatures. Which means it's not speeding up due to the heat of the power supply. Only way to reduce the fan speed is to reduce power draw, or buy a larger capacity power supply.

A quick way to reduce power draw is by using an FPS limiter smile.gif Works perfectly on my system. I limit my fps to 85 in all games. Since then, my PSU has been silent in every game on the 290X crossfire / 3930K OC'ed system.
X79-GCN
(22 items)
 
  
CPUMotherboardGraphicsRAM
Intel 3930K 4.5GHz HT GIGABYTE GA-X79-UP4 AMD R9-290X GEil Evo Potenza DDR3 2400MHz CL10 (4x4GB) 
Hard DriveCoolingCoolingCooling
Samsung 840 Pro 120GB EK Supremacy (CPU) NF F12's P/P (360 Rad)  NF A14's (420 Rad)  
CoolingCoolingCoolingCooling
XSPC Chrome Compression Fittings EK RES X3 150 Primochill PremoFlex Advanced LRT Clear 1/2 ID EK-FC (R9 290X) 
CoolingCoolingCoolingOS
EK D5 Vario Top-X  Phobya G-Changer V2 360mm Phobya G-Changer V2 420mm Win 10 x64 Pro 
MonitorKeyboardPowerCase
BenQ XR3501 35" Curved Corsair Vengeance K90 Seasonic X-1250 Gold (v2) Corsair 900D 
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Logitech G400s Senn HD 598 
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X79-GCN
(22 items)
 
  
CPUMotherboardGraphicsRAM
Intel 3930K 4.5GHz HT GIGABYTE GA-X79-UP4 AMD R9-290X GEil Evo Potenza DDR3 2400MHz CL10 (4x4GB) 
Hard DriveCoolingCoolingCooling
Samsung 840 Pro 120GB EK Supremacy (CPU) NF F12's P/P (360 Rad)  NF A14's (420 Rad)  
CoolingCoolingCoolingCooling
XSPC Chrome Compression Fittings EK RES X3 150 Primochill PremoFlex Advanced LRT Clear 1/2 ID EK-FC (R9 290X) 
CoolingCoolingCoolingOS
EK D5 Vario Top-X  Phobya G-Changer V2 360mm Phobya G-Changer V2 420mm Win 10 x64 Pro 
MonitorKeyboardPowerCase
BenQ XR3501 35" Curved Corsair Vengeance K90 Seasonic X-1250 Gold (v2) Corsair 900D 
MouseAudio
Logitech G400s Senn HD 598 
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post #3 of 6
Ah the good Seasonic M12II a pretty good PSU even today but it was never really that quiet
Seravee
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Intel Core I7 6850K Gigabyte X99 Ultra Gaming EVGA GTX 1080 FTW2 Kingston HyperX DDR4 Savage 3000 MHz 
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Seravee
(27 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core I7 6850K Gigabyte X99 Ultra Gaming EVGA GTX 1080 FTW2 Kingston HyperX DDR4 Savage 3000 MHz 
Hard DriveHard DriveHard DriveHard Drive
Samsung 840 Evo WD Green WD60EZRX  WD Red WD80EFZX 8TB  Seagate Ironwolf Pro 10 TB 
Optical DriveCoolingCoolingOS
LG CH12NS30 x5 Noctua NF-A14 FLX Noctua NH-D15S Windows 7 64 Bit 
MonitorMonitorKeyboardPower
Asus PG279Q LG 49UH750V 4K LED TV Corsair Gaming Strafe RGB EVGA SuperNova G2 750 watt 
CaseMouseMouse PadAudio
Phanteks Enthoo Luxe Roccat Kone EMP Roccat Sense Metor Sennheiser HD 598 
AudioAudioAudioAudio
Onkyo TX NR646  Harman Kardon HKTS 60 Dali Opticon Vokal x2 Dali Opticon 2 
AudioOtherOther
x2 Dali Opticon 1 CableMod E series PSU cable set CableMod LED Strips 
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post #4 of 6
Thread Starter 
Odd, My fps in Battlefield 4 stays between 75-80fps with Directx yet the psu goes nuts! It's also pretty interesting that when i ran skyrim with about 50 hd mods the psu fan was very loud aswell.
post #5 of 6
PSUs don't blow air out of the fan (if the fan is on the long face and pointing down or up). The fan's intake. Exhaust is through the back area around the power switch and such.

Around or under half load, I don't think the power supply would be all that loud yet, not quiet but not very loud. These things get very loud near max load, but I don't think the fan curve would have them cranked that much with just a single R9 290 in a game. Maybe something's up with the thermistor.

Just to be sure, do you have the model with modular cables or not? It's more or less the same design inside regardless though.

I mean, it's 80 plus bronze and not noted for silence, but Kitguru's sample for the nonmodular version didn't have fan noise outside the norm, definitely not at the kinds of loads you're looking at:
http://www.kitguru.net/components/power-supplies/zardon/xfx-pro-series-850w-power-supply-review/5/

Of course, the absolute numbers don't mean much without knowing the limitations of the test gear and setup, distance, etc., but you can compare to the figures in their other reviews.
post #6 of 6
Thread Starter 
My psu does exhaust air. I didn't know it when I first installed it but it does exhaust air and does not take in air. As for the PSU being modular, it is semi-modular and I've used most of those cables.
So yeah, this is very odd, I don't see how it's supposted to cool itself by taking in air passivly.
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