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Fan not spinning at full speed?

post #1 of 13
Thread Starter 
I have a 120mm fan which is connected to a 3 pin to 4 pin molex connector but it push only little bit of air .

Is the 3 pin to 3 pin molex connector that cause the fan not spinning at full speed? or should I get a better fan? My current fan is stock CM case fan.
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post #2 of 13
In my experience, most stock CM fans only run at a maximum of 1200 RPM and feel relatively weak - even when plugged directly into the PSU.

So, it may already be operating at its full speed.
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post #3 of 13
Model of fan?
I know ThermalRight did this with the TRUE120, the provided fan could barely keep it cooler than my stock cooler =_=
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post #4 of 13
Thread Starter 
The fan model is A12025-12CB-3BN-F1 which run at 1200 rpm, should I get another fan?
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post #5 of 13
1200 rpm is fairly slow for a 120mm fan. If you want to move more air, get a different one. Note that around 1600-1700 rpm the noise will likely get noticeable.
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post #6 of 13
For a case fan 1800 is around a good RPM. 2000+RPM if you have a fan controller
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post #7 of 13
Thread Starter 
OK I will go and look for some better fan.

BTW is CM blademaster only comes with 4 pin connector?
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post #8 of 13
Yeah only 4pin.
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post #9 of 13
I think it's all a matter of practicality. I mean, take my system for example: I have four 1200 RPM 120mm fans, and I have no heat problems. I have a front intake, top exhaust (to continue the airflow created by the Tuniq Tower), rear exhaust, and a side exhaust. However, the only reason why I have a top exhaust is because I found these really bright "Neon" Cooler Master fans that do a great job of lighting up the interior of my case. So I added one to the top for even more light.

In other words: do you actually need better airflow? I know I don't, and my system generates more heat than yours. You could probably even get away with just one 1200 RPM 120mm exhaust fan. I mean, how much heat does your system generate anyway? You have a 5670, a single-core CPU and not much else that generates heat. Compare that to mine!
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It's a computer!
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post #10 of 13
Thread Starter 
Quote:
Originally Posted by TwoCables View Post
I think it's all a matter of practicality. I mean, take my system for example: I have four 1200 RPM 120mm fans, and I have no heat problems. I have a front intake, top exhaust (to continue the airflow created by the Tuniq Tower), rear exhaust, and a side exhaust. However, the only reason why I have a top exhaust is because I found these really bright "Neon" Cooler Master fans that do a great job of lighting up the interior of my case. So I added one to the top for even more light.

In other words: do you actually need better airflow? I know I don't, and my system generates more heat than yours. You could probably even get away with just one 1200 RPM 120mm exhaust fan. I mean, how much heat does your system generate anyway? You have a 5670, a single-core CPU and not much else that generates heat. Compare that to mine!
My Athlon idle is about 47 C and after gaming about 55 (ambient 29C). I'm not sure if this temp is too hot...I think a better front intake fan should cool it down much more
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(16 items)
 
  
CPUMotherboardGraphicsRAM
AMD Athlon 64 3000+ Gigabyte GA-K8N51 Sapphire Radeon HD5670 1.85GB 
Hard DriveOptical DriveCoolingCooling
Western Digital WD5000AADS Samsung Super WriteMaster DVD Stock heatsink 2x Arctic F12, 1x Papst 120mm @ 5V 
OSMonitorKeyboardPower
Windows Vista Viewsonic 19" 1680x1050 Generic EnLight 350W 
CaseMouseMouse PadAudio
Cooler Master Elite 335 Microsoft SideWinder X5 Cloth Pad Creative Soundblaster VX 5.1 
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