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New fan mod

post #1 of 9
Thread Starter 
I just added an 80mm fan to the top of my (generic) case, by cutting a hole with a dremel, and inserting a chrome fan plate, with the fan below that. It dropped my idle temps from 35C to 29C. (I haven't tried load yet.) The only problem is, this fan alone makes my PC more that twice as loud as it used to be - and I already used orthodontic rubber bands on the screws to dampen the vibrations. Is there any reason why it's so much louder?
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post #2 of 9
It's loud because it's a high rpm fan (duh?). If you want get a slower one or lower the voltage to the one you already have.
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Revodrive 3 x2 240GB, M500 960GB, 2x WD 1TB Rai... Noctua NH-D14 Windows 10 Apple Cinema 30" 1600p 
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i5 2500K Asus P8P67 EVO GTX 980 16GB DDR3 1866mhz 
Hard DriveCoolingOSMonitor
Revodrive 3 x2 240GB, M500 960GB, 2x WD 1TB Rai... Noctua NH-D14 Windows 10 Apple Cinema 30" 1600p 
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post #3 of 9
or buy a silent fan.
Immortal
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Immortal
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Hard DriveOptical DriveOSMonitor
1x 400GB Seagate 7200rpm/16mb cache Some super combo drive Windows XP Home/Ubuntu NEC MultiSync LCD1970GX 
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Logitech cordless 610w PCP&C silencer TTArmor w/side fan G7 
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post #4 of 9
Thread Starter 
I'm not quite that stupid, fishie . (or at least, I sure hope not ). What I forgot to mention was that
a.) this fan is identical to one that I have on the side of my case
and b.) It's not so loud when it's mounted in a different place.

Sorry about the confusion!
My System
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CPUMotherboardGraphicsRAM
Athlon X2 Black Edition I forget lol HD 4650 2GB Kingston 
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1x160GB, 1x250 3GB/s SATA Win XP Pro 17-inch piece of junk CRT FSP SAGA 450W 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Athlon X2 Black Edition I forget lol HD 4650 2GB Kingston 
Hard DriveOSMonitorPower
1x160GB, 1x250 3GB/s SATA Win XP Pro 17-inch piece of junk CRT FSP SAGA 450W 
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post #5 of 9
Quote:
Originally Posted by Gandalf
I'm not quite that stupid, fishie . (or at least, I sure hope not ). What I forgot to mention was that
a.) this fan is identical to one that I have on the side of my case
and b.) It's not so loud when it's mounted in a different place.

Sorry about the confusion!
is there anything blocking the airflow that isn't when it's mounted anywhere else?
Immortal
(13 items)
 
  
CPUMotherboardGraphicsRAM
E6600 44G 3.240GHz Asus P5B-deluxe eVGA 8800GT (650/950) 2GB PQIturbomem 667(800mhzballistix soon) 
Hard DriveOptical DriveOSMonitor
1x 400GB Seagate 7200rpm/16mb cache Some super combo drive Windows XP Home/Ubuntu NEC MultiSync LCD1970GX 
KeyboardPowerCaseMouse
Logitech cordless 610w PCP&C silencer TTArmor w/side fan G7 
Mouse Pad
Black IcematII 
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Immortal
(13 items)
 
  
CPUMotherboardGraphicsRAM
E6600 44G 3.240GHz Asus P5B-deluxe eVGA 8800GT (650/950) 2GB PQIturbomem 667(800mhzballistix soon) 
Hard DriveOptical DriveOSMonitor
1x 400GB Seagate 7200rpm/16mb cache Some super combo drive Windows XP Home/Ubuntu NEC MultiSync LCD1970GX 
KeyboardPowerCaseMouse
Logitech cordless 610w PCP&C silencer TTArmor w/side fan G7 
Mouse Pad
Black IcematII 
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post #6 of 9
What is this chrome fan plate you mentioned? Does it restrict airflow? I found that fan grills that restrict airflow often make a lot of noise.
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Hard DriveCoolingOSMonitor
Revodrive 3 x2 240GB, M500 960GB, 2x WD 1TB Rai... Noctua NH-D14 Windows 10 Apple Cinema 30" 1600p 
KeyboardPowerCaseMouse
Logitech Orion Spark Capstone 750w CM Storm Scout Logitech G700s 
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Main Rig
(14 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500K Asus P8P67 EVO GTX 980 16GB DDR3 1866mhz 
Hard DriveCoolingOSMonitor
Revodrive 3 x2 240GB, M500 960GB, 2x WD 1TB Rai... Noctua NH-D14 Windows 10 Apple Cinema 30" 1600p 
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Logitech Orion Spark Capstone 750w CM Storm Scout Logitech G700s 
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post #7 of 9
Nice drop in temp. As for the noise, is there space for a 120mm? You would be able to lower the RPM's while increasing the CFM.

Maybe try a fan controller on the 80. You could keep it low while surfing or working under less CPU demanding apps, then crank it up when gaming, encoding, benchmarking, etc...
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Black Widow Ult. Silverstone DA750 Lian Li T60 R.A.T. 7 
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post #8 of 9
Thread Starter 
I'd rather not put a 120 in, as it will take up space for the external PSU that I'm adding. That's a good point about the fan grill - it seems pretty flat and rough on the inside...do you think it would help if I sanded the inside, and rounded it off a bit?
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Athlon X2 Black Edition I forget lol HD 4650 2GB Kingston 
Hard DriveOSMonitorPower
1x160GB, 1x250 3GB/s SATA Win XP Pro 17-inch piece of junk CRT FSP SAGA 450W 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Athlon X2 Black Edition I forget lol HD 4650 2GB Kingston 
Hard DriveOSMonitorPower
1x160GB, 1x250 3GB/s SATA Win XP Pro 17-inch piece of junk CRT FSP SAGA 450W 
  hide details  
Reply
post #9 of 9
Just take it off, see if it makes a difference then sand it if it does.
    
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FX8320 Asus M5A78L-M/USB3 XFX AMD Radeon HD 7950 Graphics Card 3GB Corsair CMX8GX3M2A1333C9 XMS3 16GB (4x4GB) 
Hard DriveHard DriveCoolingOS
Samsung F3 1TB Hard Drive Crucial CT128M4SSD2 128GB SSD Coolermaster Hyper 212 EVO Windows 7 Professional  
MonitorMonitorPowerCase
Samsung SyncMaster BX2431 1080p PCBank PB2700 1440p IPS Be Quiet! Dark Power Pro 550W PSU  Xigmatek Giggas 
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CPUMotherboardGraphicsRAM
FX8320 Asus M5A78L-M/USB3 XFX AMD Radeon HD 7950 Graphics Card 3GB Corsair CMX8GX3M2A1333C9 XMS3 16GB (4x4GB) 
Hard DriveHard DriveCoolingOS
Samsung F3 1TB Hard Drive Crucial CT128M4SSD2 128GB SSD Coolermaster Hyper 212 EVO Windows 7 Professional  
MonitorMonitorPowerCase
Samsung SyncMaster BX2431 1080p PCBank PB2700 1440p IPS Be Quiet! Dark Power Pro 550W PSU  Xigmatek Giggas 
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