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Push/Pull problem

post #1 of 6
Thread Starter 
I just installed a push pull setup on my Megahalems using two 1900RPM Scythe S-Flex fans. The problem is that when the fans are running in push/pull the back one makes a high-pitched whine. I tried switching the fans positions (still whine), changing the fan clips (still whine) but when I pull the rear fan about a centimeter away from the edge of the Megahalems the whine goes away.

I guess my questions are:
1. Am I damaging the fan in any way? (there is not contact between blades and heatsink)
2. What is causing the whine?
3. What can I do to fix the whine?

Thanks for any input,
Argosy
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post #2 of 6
Probably vibration. Find some adhesive rubber strips at your local hardware store. Cooler Master is nice enough to provide those when you buy a Hyper 212.
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Ivy Bridge
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post #3 of 6
Fast air into small channel making a loud whine. Some times it happens.
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post #4 of 6
Thread Starter 
Quote:
Originally Posted by hellfire72 View Post
Probably vibration. Find some adhesive rubber strips at your local hardware store. Cooler Master is nice enough to provide those when you buy a Hyper 212.
I'll try that.
Thanks

That does not explain why I still get the whine if I hold the fan less than 1 cm away from the cooler though.
Edited by Argosy - 3/6/11 at 2:59pm
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t7 v2
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(13 items)
 
t7 v3
(15 items)
 
CPUMotherboardGraphicsRAM
1055T |3.96 GHz| MSI 790FX QuadroFX 540 8GB Gskill Sniper |1600 MHz| 
Hard DriveCoolingOSPower
Seagate Barracuda 250GB Xigmatek Thor's Hammer Ubuntu 11.10 Antec HGC 400W 
Case
Antec 100 
CPUMotherboardGraphicsRAM
i7 920 D0 |3.8 GHz| Foxconn BloodRage EVGA 9600GT 6 GB Corsair DDR3 |1604MHz| 
Hard DriveOptical DriveOSMonitor
1TB Caviar Black 24X Sony Optaric Windows 7 64 bit Acer LED 23" |1920x1080| 
KeyboardPowerCaseMouse
Razer Lycosa Antec HCG 400 Xigmatek Asgard Logitech G500 
Mouse Pad
SteelSeries 5L 
CPUGraphicsRAMHard Drive
Pentium 4 Dual Core 2.8 GHz GTX 480 3GB DDR2 533 2x 80 GB WD 
CoolingCoolingOSPower
Cooler Master Hyper 212+ Cooler Master Hyper 212+ Windows BVista 64-bit Corsair HX 850 
Case
Antec 1200 
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Reply
post #5 of 6
Depending on the fan, the Megahalems can moan. Lots of people have noted the moaning. I think it is worst with S-Flexes for some reason.

Try putting some foam in the cleft between the twin towers. Might help, might not.
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post #6 of 6
Thread Starter 
Quote:
Originally Posted by ehume View Post
Depending on the fan, the Megahalems can moan. Lots of people have noted the moaning. I think it is worst with S-Flexes for some reason.

Try putting some foam in the cleft between the twin towers. Might help, might not.
Thanks, I can try that, though I am kinda getting used to the noise now, oddly.
t7 v2
(14 items)
 
t7 v1
(13 items)
 
t7 v3
(15 items)
 
CPUMotherboardGraphicsRAM
1055T |3.96 GHz| MSI 790FX QuadroFX 540 8GB Gskill Sniper |1600 MHz| 
Hard DriveCoolingOSPower
Seagate Barracuda 250GB Xigmatek Thor's Hammer Ubuntu 11.10 Antec HGC 400W 
Case
Antec 100 
CPUMotherboardGraphicsRAM
i7 920 D0 |3.8 GHz| Foxconn BloodRage EVGA 9600GT 6 GB Corsair DDR3 |1604MHz| 
Hard DriveOptical DriveOSMonitor
1TB Caviar Black 24X Sony Optaric Windows 7 64 bit Acer LED 23" |1920x1080| 
KeyboardPowerCaseMouse
Razer Lycosa Antec HCG 400 Xigmatek Asgard Logitech G500 
Mouse Pad
SteelSeries 5L 
CPUGraphicsRAMHard Drive
Pentium 4 Dual Core 2.8 GHz GTX 480 3GB DDR2 533 2x 80 GB WD 
CoolingCoolingOSPower
Cooler Master Hyper 212+ Cooler Master Hyper 212+ Windows BVista 64-bit Corsair HX 850 
Case
Antec 1200 
  hide details  
Reply
t7 v2
(14 items)
 
t7 v1
(13 items)
 
t7 v3
(15 items)
 
CPUMotherboardGraphicsRAM
1055T |3.96 GHz| MSI 790FX QuadroFX 540 8GB Gskill Sniper |1600 MHz| 
Hard DriveCoolingOSPower
Seagate Barracuda 250GB Xigmatek Thor's Hammer Ubuntu 11.10 Antec HGC 400W 
Case
Antec 100 
CPUMotherboardGraphicsRAM
i7 920 D0 |3.8 GHz| Foxconn BloodRage EVGA 9600GT 6 GB Corsair DDR3 |1604MHz| 
Hard DriveOptical DriveOSMonitor
1TB Caviar Black 24X Sony Optaric Windows 7 64 bit Acer LED 23" |1920x1080| 
KeyboardPowerCaseMouse
Razer Lycosa Antec HCG 400 Xigmatek Asgard Logitech G500 
Mouse Pad
SteelSeries 5L 
CPUGraphicsRAMHard Drive
Pentium 4 Dual Core 2.8 GHz GTX 480 3GB DDR2 533 2x 80 GB WD 
CoolingCoolingOSPower
Cooler Master Hyper 212+ Cooler Master Hyper 212+ Windows BVista 64-bit Corsair HX 850 
Case
Antec 1200 
  hide details  
Reply
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