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Noisy PSU

post #1 of 3
Thread Starter 
Hey, iv had my Coolermaster GX750 since christmas and its been brilliant for my system, only it gets extremely loud under load (either stress testing GPU or playing BC2 and other games)

The noise is unbearable and is louder than my GTX 460 SC EE (which are also extremely loud but thats not the problem)

I know its not anything else as i have turned the fan speeds down on everything in my case appart from the Powersupply's fan.

Have any of you that owns this power supply have problems like this?
|White Fury|
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|Scootaloo|
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The Workhorse
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|White Fury|
(27 items)
 
|Scootaloo|
(12 items)
 
The Workhorse
(7 items)
 
CPUMotherboardGraphicsRAM
Intel Core i7 3770k 4.5GHz [De-Lidded] MSI Z77A-G43 MSI GTX 780 Reference - Oooh soo sexy! 8GB G.Skill RipjawsX 
Hard DriveHard DriveHard DriveHard Drive
Samsung 840 Pro 128GB 2TB Seagate Barracuda 2TB Seagate Barracuda 640GB WD Blue 
Hard DriveOptical DriveCoolingOS
1.5TB WD Green Samsung DVD/RW Cogage Arrow [Lapped] Microsoft Windows 10 Pro 
MonitorMonitorKeyboardPower
Fujitsu SL3230t 1080p @75Hz Samsung UE32F5000 1920x1080 Saitek Eclipse Thermaltake Toughpower XT 675w 
CaseMouseMouse PadAudio
Coolermaster 690 II Black/White Advanced CM Storm Xornet Qsteel Asus Xonar DS 
AudioAudioAudioAudio
Quad 33 Pre-Amplifier (Pre-Production Unit) Quad 303 Power-Amplifier - 90 Watts RMS (Pre-Pr... Quad 303 Power-Amplifier - 90 Watts RMS (Post-P... Quad FM3 Tuner 
AudioAudioAudio
Mission 751 Bookshelf's Mission M73 Floor standing loudspeakers Mission 78as Dual 8" Active Sub Woofer - 250 watts 
CPUMotherboardGraphicsGraphics
Intel Q8400 MSI P45 Platinum EVGA GTX 750Ti MSI GTX 560Ti 
RAMHard DriveCoolingOS
6GB DDR 2 800MHz (Kingston Hyper X and Corsair ... Samsung 840 120GB Coolermaster Hyper 212 (Rev 1) Windows 10 Insider 
MonitorKeyboardPowerCase
Samsung 1080p TV Saitek Eclipse Coolermaster GX750 Coolermaster CM 690II Black 
CPUGraphicsRAMHard Drive
Intel Core i5 3230m 2.6GHz (3.2GHz Turbo) Nvidia GT 635m 2GB 8GB DDR3 1600MHz Samsung 840 120GB 
Optical DriveOSMonitor
Blu-Ray Reader / DVD RW Windows 8.1 15.6" 1366x768 
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post #2 of 3
Well for starters it's a mediocre 450W power supply with a crappy sleeve-bearing fan and shoddy build quality. Hadn't heard much about them being noisy, but if the fan or the fan controller are bad then certainly that's a possibility.

I'd RMA, sell the replacement, and buy a power supply that isn't trash.
post #3 of 3
I feel your pain, or well at least I used to until I upgraded my pain away in the form of a new case, new psu and noctua fans.

NZXT HALE90 650w PSU 16dB
Noctua NH-D14 cpu cooler 12dB
GTX470 VF3000F mod+ 2x Noctua NF-B9's 9dB
Coolermaster HAF 912 Plus + Noctua Fans 9dB

vs

Tagan 480w PSU 26dB
Zalman 9600-LED 35dB
GTX470 stock 50dB
Old Apen case from 1998 with 80mm fans 40dB


Seriously its no joke when I say I have my sanity back.
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B
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CPUMotherboardGraphicsRAM
Intel 2600K @ 1.24v @ 4.4Ghz Asus P8P67-EVO Nvidia GTX470 8GB G.Skill ECO DDR3-1600 
Hard DriveOptical DriveOSMonitor
ForceGT120GB + WD Greens HVD soon (2016) Windows 7 Home Premium Viewsonic 22" 1080p 2ms 
KeyboardPowerCaseMouse
Xarmor U9BL-S NZXT HALE90 80PG 650w Coolermaster HAF 912 Plus Razer Deathadder Respawn 
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