Overclock.net › Forums › Cooling › Air Cooling › CFM or Static pressure for HEATSINKS
New Posts  All Forums:Forum Nav:

CFM or Static pressure for HEATSINKS

post #1 of 4
Thread Starter 
I would start a poll if I knew how, but im a forum newb - I would like to know what you guys think. For a heatsink, which is more important?? Fans with CFM or fans with static pressure? Thanks
Money Blackhole
(14 items)
 
  
CPUMotherboardGraphicsRAM
i5 3750k Asrock Z77 Extreme4 MSI GTX 680 Lightning G.Skill Ripjaws X 8GB 
Hard DriveCoolingOSMonitor
2 x Western Digital 500GB Caviar Black  Noctua NH-D15 Windows 7 64bit ASUS 24" VG248QE 
KeyboardPowerCaseMouse
Steelseries 6Gv2 Corsair HX 850 HAF X  Razer Deathadder / Naga 
Mouse Pad
Razer Goliahtus 
  hide details  
Reply
Money Blackhole
(14 items)
 
  
CPUMotherboardGraphicsRAM
i5 3750k Asrock Z77 Extreme4 MSI GTX 680 Lightning G.Skill Ripjaws X 8GB 
Hard DriveCoolingOSMonitor
2 x Western Digital 500GB Caviar Black  Noctua NH-D15 Windows 7 64bit ASUS 24" VG248QE 
KeyboardPowerCaseMouse
Steelseries 6Gv2 Corsair HX 850 HAF X  Razer Deathadder / Naga 
Mouse Pad
Razer Goliahtus 
  hide details  
Reply
post #2 of 4
It should depend on the heatsink (some have denser fan arrays than others). With my Venomous X, I tried a few fan configurations. My best results come from a 38mm Panaflo high static pressure fan. I tossed a medium speed Yate Loon on the pull side for a little extra support, but it's not really neccessary.
Gaming Monster
(21 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7-3930k ASUS Rampage IV Extreme EVGA GTX Titan SC 8GB G.SKILL Ripjaws X CL8 1600MHz 
Hard DriveHard DriveHard DriveHard Drive
256GB Samsung 840 Pro 128GB Crucial C300 SSD 60GB OCZ Vertex 3 SSD 1TB Samsung F3 
Hard DriveCoolingOSMonitor
6TB External RAID 0 EK Block, XSPC 3x120mm Radiator Windows 8 64-bit 34" LG 34UC87C-B 21:9 IPS LED Monitor 
MonitorKeyboardPowerCase
27" ASUS VG278H Filco Majestouch Tenkeyless Corsair AX750 Cooler Master HAF 932 
MouseMouse PadAudioAudio
Steelseries Sensei Steelseries 9HD Audio Technica ATH-AD700 Samson C01U Condenser Microphone 
  hide details  
Reply
Gaming Monster
(21 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7-3930k ASUS Rampage IV Extreme EVGA GTX Titan SC 8GB G.SKILL Ripjaws X CL8 1600MHz 
Hard DriveHard DriveHard DriveHard Drive
256GB Samsung 840 Pro 128GB Crucial C300 SSD 60GB OCZ Vertex 3 SSD 1TB Samsung F3 
Hard DriveCoolingOSMonitor
6TB External RAID 0 EK Block, XSPC 3x120mm Radiator Windows 8 64-bit 34" LG 34UC87C-B 21:9 IPS LED Monitor 
MonitorKeyboardPowerCase
27" ASUS VG278H Filco Majestouch Tenkeyless Corsair AX750 Cooler Master HAF 932 
MouseMouse PadAudioAudio
Steelseries Sensei Steelseries 9HD Audio Technica ATH-AD700 Samson C01U Condenser Microphone 
  hide details  
Reply
post #3 of 4
Check out this post: http://www.overclock.net/air-cooling/724577-well-dressed-megahalems-65-fans-112-a.html

In general, you want to lean more towards static pressure than CFM for a heatsink fan. The 38mm fans tend to have more static pressure and CFM than 25mm fans, but 38mm fans are generally louder.
Edited by Riou - 3/17/11 at 12:28pm
post #4 of 4
Static Pressure, Yate Loon's are known to have very high static pressure and good CFM, its obviously going to be a mixture, but I'd take higher static pressure over CFM (usually leads to lower db as well)
The Laptop
(6 items)
 
  
CPUGraphicsRAMHard Drive
Intel i7 2860QM AMD Radeon HD 6770M Corsair Vengence 1600MHz Samsung 840 Pro 256GB 
OSMonitor
Mac OS X 10.8 1680 x 1050 anti-glare high resolution  
  hide details  
Reply
The Laptop
(6 items)
 
  
CPUGraphicsRAMHard Drive
Intel i7 2860QM AMD Radeon HD 6770M Corsair Vengence 1600MHz Samsung 840 Pro 256GB 
OSMonitor
Mac OS X 10.8 1680 x 1050 anti-glare high resolution  
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Air Cooling
Overclock.net › Forums › Cooling › Air Cooling › CFM or Static pressure for HEATSINKS