Overclock.net › Forums › Cooling › Air Cooling › CPU fan PULL air vs PUSH air
New Posts  All Forums:Forum Nav:

CPU fan PULL air vs PUSH air

post #1 of 10
Thread Starter 
Hi guys, ive seen some OEM pc's with a pull fan instead of push fan, e.g. the new Alienware X51, XBOX 360, etc....
so is there an advantage to have the fan pulling air from the heatsink or something? doesnt make sense because the surrounding mosfets, VRM's wont recieve much airflow.
so can someone tell me why?
i've done test with my old rig's stock amd cooler and the temps seem to be higher when pulling air.
Vaporizer
(16 items)
 
  
CPUMotherboardGraphicsRAM
AMD Ryzen 5 1600X 3.9Ghz@1.265V Gigabyte AB350N-Gaming WiFi Sapphire RX Vega 64 G.Skill Flare X 3200MHz CL14 
Hard DriveHard DriveCoolingOS
Seagate 1TB 2.5" HDD ST1000DM035 Samsung 960 Evo 250GB Noctua NH-D9L Windows 10 Pro 
MonitorKeyboardPowerCase
Dell U2515H K70 Lux Cherry Brown Corsair SF600 NCASE M1 V5 Silver 
Mouse
Steelseries Kana V2 
  hide details  
Reply
Vaporizer
(16 items)
 
  
CPUMotherboardGraphicsRAM
AMD Ryzen 5 1600X 3.9Ghz@1.265V Gigabyte AB350N-Gaming WiFi Sapphire RX Vega 64 G.Skill Flare X 3200MHz CL14 
Hard DriveHard DriveCoolingOS
Seagate 1TB 2.5" HDD ST1000DM035 Samsung 960 Evo 250GB Noctua NH-D9L Windows 10 Pro 
MonitorKeyboardPowerCase
Dell U2515H K70 Lux Cherry Brown Corsair SF600 NCASE M1 V5 Silver 
Mouse
Steelseries Kana V2 
  hide details  
Reply
post #2 of 10
stock coolers only provide the minimum to cool down parts like mosfets and the cpu itself.
its pretty simple why they use such a method.
the stock heatsinks are lightweight and small, perfect for handling, shipping.
HAF silent-X
(18 items)
 
chargin ma lazor
(12 photos)
Nibble the World!
(1 photos)
CPUMotherboardGraphicsGraphics
Intel Xtreme QX9770 @4GHz Asus P5Q3 Deluxe Sapphire HD 6970 2GB cooled by Alpenföhn Peter 
GraphicsRAMHard DriveHard Drive
Sapphire HD 6950 @ 6970 [for sale] 16GB Geil Value Plus DDR3 @1600Mhz Corsair Force GT 240GB SSD SAMSUNG SpinPoint F3 7200 
CoolingOSMonitorPower
Thermalright Archon PP 2x TY-140 Win7 x64 Enterprise Sony 42" LED Backlight LCD TV 1080p HD+ Seasonic M12D 850W 80+ Gold 
CaseOther
Cooler Master HAF-X Scythe Kaze Master 
  hide details  
Reply
HAF silent-X
(18 items)
 
chargin ma lazor
(12 photos)
Nibble the World!
(1 photos)
CPUMotherboardGraphicsGraphics
Intel Xtreme QX9770 @4GHz Asus P5Q3 Deluxe Sapphire HD 6970 2GB cooled by Alpenföhn Peter 
GraphicsRAMHard DriveHard Drive
Sapphire HD 6950 @ 6970 [for sale] 16GB Geil Value Plus DDR3 @1600Mhz Corsair Force GT 240GB SSD SAMSUNG SpinPoint F3 7200 
CoolingOSMonitorPower
Thermalright Archon PP 2x TY-140 Win7 x64 Enterprise Sony 42" LED Backlight LCD TV 1080p HD+ Seasonic M12D 850W 80+ Gold 
CaseOther
Cooler Master HAF-X Scythe Kaze Master 
  hide details  
Reply
post #3 of 10
Thread Starter 
i mean that why do some OEM heatsinks have the PULLING air from the heatsink instead of BLOWING air onto the heatsink, im not talking about how small lighweight they are.redface.gif
Vaporizer
(16 items)
 
  
CPUMotherboardGraphicsRAM
AMD Ryzen 5 1600X 3.9Ghz@1.265V Gigabyte AB350N-Gaming WiFi Sapphire RX Vega 64 G.Skill Flare X 3200MHz CL14 
Hard DriveHard DriveCoolingOS
Seagate 1TB 2.5" HDD ST1000DM035 Samsung 960 Evo 250GB Noctua NH-D9L Windows 10 Pro 
MonitorKeyboardPowerCase
Dell U2515H K70 Lux Cherry Brown Corsair SF600 NCASE M1 V5 Silver 
Mouse
Steelseries Kana V2 
  hide details  
Reply
Vaporizer
(16 items)
 
  
CPUMotherboardGraphicsRAM
AMD Ryzen 5 1600X 3.9Ghz@1.265V Gigabyte AB350N-Gaming WiFi Sapphire RX Vega 64 G.Skill Flare X 3200MHz CL14 
Hard DriveHard DriveCoolingOS
Seagate 1TB 2.5" HDD ST1000DM035 Samsung 960 Evo 250GB Noctua NH-D9L Windows 10 Pro 
MonitorKeyboardPowerCase
Dell U2515H K70 Lux Cherry Brown Corsair SF600 NCASE M1 V5 Silver 
Mouse
Steelseries Kana V2 
  hide details  
Reply
post #4 of 10
i doubt that there is a reason why its pulling or pushing air
HAF silent-X
(18 items)
 
chargin ma lazor
(12 photos)
Nibble the World!
(1 photos)
CPUMotherboardGraphicsGraphics
Intel Xtreme QX9770 @4GHz Asus P5Q3 Deluxe Sapphire HD 6970 2GB cooled by Alpenföhn Peter 
GraphicsRAMHard DriveHard Drive
Sapphire HD 6950 @ 6970 [for sale] 16GB Geil Value Plus DDR3 @1600Mhz Corsair Force GT 240GB SSD SAMSUNG SpinPoint F3 7200 
CoolingOSMonitorPower
Thermalright Archon PP 2x TY-140 Win7 x64 Enterprise Sony 42" LED Backlight LCD TV 1080p HD+ Seasonic M12D 850W 80+ Gold 
CaseOther
Cooler Master HAF-X Scythe Kaze Master 
  hide details  
Reply
HAF silent-X
(18 items)
 
chargin ma lazor
(12 photos)
Nibble the World!
(1 photos)
CPUMotherboardGraphicsGraphics
Intel Xtreme QX9770 @4GHz Asus P5Q3 Deluxe Sapphire HD 6970 2GB cooled by Alpenföhn Peter 
GraphicsRAMHard DriveHard Drive
Sapphire HD 6950 @ 6970 [for sale] 16GB Geil Value Plus DDR3 @1600Mhz Corsair Force GT 240GB SSD SAMSUNG SpinPoint F3 7200 
CoolingOSMonitorPower
Thermalright Archon PP 2x TY-140 Win7 x64 Enterprise Sony 42" LED Backlight LCD TV 1080p HD+ Seasonic M12D 850W 80+ Gold 
CaseOther
Cooler Master HAF-X Scythe Kaze Master 
  hide details  
Reply
post #5 of 10
I think in both those cases they are meant to be more of an exhaust fan, not directly attached to the heatsink right?. Pushing air through the heatsink is way better for the obvious reason, not just pulling the hot air from the side.
Eff You Intel
(14 items)
 
FreeNAS
(9 items)
 
Beast
(14 items)
 
CPUMotherboardGraphicsRAM
AMD Ryzen 7 1700X AsRock X370 Taichi Sapphire R9 Fury Tri-X OC 32GB (2 x F4-3200C14D-16GFX) 
Hard DriveOptical DriveCoolingOS
Plextor M8Se(G) 1TB People still use these? lol Cryorig H7 Winblows 10 Professional X64 
MonitorKeyboardPowerCase
Pixio PX277 Logitech G510 Seasonic SS-860XP2 Fractal Design Define C TG 
MouseMouse Pad
Logitech G500 Xtrac Ripper 
CPUMotherboardGraphicsRAM
Intel Xeon E3-1245 v5 SuperMicro X11SSM-F-O C236 Integrated 2 x 16GB Kingston ValueRAM ECC KVR21E15D8/16 
Hard DriveCoolingOSPower
5 x 8TB Seagate IronWolf Pro in ZF2 Array CoolerMaster Hyper 212 Evo FreeNAS 11 EVGA SuperNOVA G2 550W Gold 
Case
Fractal Design Node 804 
CPUMotherboardGraphicsRAM
i7 4790k Asus Z97 Pro WIFI-AC Sapphire Nitro Radeon R9 Fury Tri-X OC+  G.Skill 4 x 8GB F3-2133C9D-16GXH 
Hard DriveOptical DriveCoolingOS
2 x Intel 730 480GB SSD in RAID 0 Asus DRW-24B1ST/BLK/B/AS Noctua NH-D15 Winblows 10 Pro x64 
MonitorKeyboardPowerCase
Pixio PX277 Logitech G510 Seasonic SS-660XP2 Fractal Design R4 Blackout 
MouseMouse Pad
Logitech G500 Xtrac Ripper 
  hide details  
Reply
Eff You Intel
(14 items)
 
FreeNAS
(9 items)
 
Beast
(14 items)
 
CPUMotherboardGraphicsRAM
AMD Ryzen 7 1700X AsRock X370 Taichi Sapphire R9 Fury Tri-X OC 32GB (2 x F4-3200C14D-16GFX) 
Hard DriveOptical DriveCoolingOS
Plextor M8Se(G) 1TB People still use these? lol Cryorig H7 Winblows 10 Professional X64 
MonitorKeyboardPowerCase
Pixio PX277 Logitech G510 Seasonic SS-860XP2 Fractal Design Define C TG 
MouseMouse Pad
Logitech G500 Xtrac Ripper 
CPUMotherboardGraphicsRAM
Intel Xeon E3-1245 v5 SuperMicro X11SSM-F-O C236 Integrated 2 x 16GB Kingston ValueRAM ECC KVR21E15D8/16 
Hard DriveCoolingOSPower
5 x 8TB Seagate IronWolf Pro in ZF2 Array CoolerMaster Hyper 212 Evo FreeNAS 11 EVGA SuperNOVA G2 550W Gold 
Case
Fractal Design Node 804 
CPUMotherboardGraphicsRAM
i7 4790k Asus Z97 Pro WIFI-AC Sapphire Nitro Radeon R9 Fury Tri-X OC+  G.Skill 4 x 8GB F3-2133C9D-16GXH 
Hard DriveOptical DriveCoolingOS
2 x Intel 730 480GB SSD in RAID 0 Asus DRW-24B1ST/BLK/B/AS Noctua NH-D15 Winblows 10 Pro x64 
MonitorKeyboardPowerCase
Pixio PX277 Logitech G510 Seasonic SS-660XP2 Fractal Design R4 Blackout 
MouseMouse Pad
Logitech G500 Xtrac Ripper 
  hide details  
Reply
post #6 of 10
Thread Starter 
338


see how the fan is pulling air from the cpu heatsink?

and @Dopamin3, the fan is attached to the H/S . smile.gif
Vaporizer
(16 items)
 
  
CPUMotherboardGraphicsRAM
AMD Ryzen 5 1600X 3.9Ghz@1.265V Gigabyte AB350N-Gaming WiFi Sapphire RX Vega 64 G.Skill Flare X 3200MHz CL14 
Hard DriveHard DriveCoolingOS
Seagate 1TB 2.5" HDD ST1000DM035 Samsung 960 Evo 250GB Noctua NH-D9L Windows 10 Pro 
MonitorKeyboardPowerCase
Dell U2515H K70 Lux Cherry Brown Corsair SF600 NCASE M1 V5 Silver 
Mouse
Steelseries Kana V2 
  hide details  
Reply
Vaporizer
(16 items)
 
  
CPUMotherboardGraphicsRAM
AMD Ryzen 5 1600X 3.9Ghz@1.265V Gigabyte AB350N-Gaming WiFi Sapphire RX Vega 64 G.Skill Flare X 3200MHz CL14 
Hard DriveHard DriveCoolingOS
Seagate 1TB 2.5" HDD ST1000DM035 Samsung 960 Evo 250GB Noctua NH-D9L Windows 10 Pro 
MonitorKeyboardPowerCase
Dell U2515H K70 Lux Cherry Brown Corsair SF600 NCASE M1 V5 Silver 
Mouse
Steelseries Kana V2 
  hide details  
Reply
post #7 of 10
Thread Starter 
also, this may be irrelevent, but can you see my rig details under my post, i can't see them.
Vaporizer
(16 items)
 
  
CPUMotherboardGraphicsRAM
AMD Ryzen 5 1600X 3.9Ghz@1.265V Gigabyte AB350N-Gaming WiFi Sapphire RX Vega 64 G.Skill Flare X 3200MHz CL14 
Hard DriveHard DriveCoolingOS
Seagate 1TB 2.5" HDD ST1000DM035 Samsung 960 Evo 250GB Noctua NH-D9L Windows 10 Pro 
MonitorKeyboardPowerCase
Dell U2515H K70 Lux Cherry Brown Corsair SF600 NCASE M1 V5 Silver 
Mouse
Steelseries Kana V2 
  hide details  
Reply
Vaporizer
(16 items)
 
  
CPUMotherboardGraphicsRAM
AMD Ryzen 5 1600X 3.9Ghz@1.265V Gigabyte AB350N-Gaming WiFi Sapphire RX Vega 64 G.Skill Flare X 3200MHz CL14 
Hard DriveHard DriveCoolingOS
Seagate 1TB 2.5" HDD ST1000DM035 Samsung 960 Evo 250GB Noctua NH-D9L Windows 10 Pro 
MonitorKeyboardPowerCase
Dell U2515H K70 Lux Cherry Brown Corsair SF600 NCASE M1 V5 Silver 
Mouse
Steelseries Kana V2 
  hide details  
Reply
post #8 of 10
cant see it either.
the picture would make sense IF the sidepanel had a honey mesh to exhaust the hot air.
HAF silent-X
(18 items)
 
chargin ma lazor
(12 photos)
Nibble the World!
(1 photos)
CPUMotherboardGraphicsGraphics
Intel Xtreme QX9770 @4GHz Asus P5Q3 Deluxe Sapphire HD 6970 2GB cooled by Alpenföhn Peter 
GraphicsRAMHard DriveHard Drive
Sapphire HD 6950 @ 6970 [for sale] 16GB Geil Value Plus DDR3 @1600Mhz Corsair Force GT 240GB SSD SAMSUNG SpinPoint F3 7200 
CoolingOSMonitorPower
Thermalright Archon PP 2x TY-140 Win7 x64 Enterprise Sony 42" LED Backlight LCD TV 1080p HD+ Seasonic M12D 850W 80+ Gold 
CaseOther
Cooler Master HAF-X Scythe Kaze Master 
  hide details  
Reply
HAF silent-X
(18 items)
 
chargin ma lazor
(12 photos)
Nibble the World!
(1 photos)
CPUMotherboardGraphicsGraphics
Intel Xtreme QX9770 @4GHz Asus P5Q3 Deluxe Sapphire HD 6970 2GB cooled by Alpenföhn Peter 
GraphicsRAMHard DriveHard Drive
Sapphire HD 6950 @ 6970 [for sale] 16GB Geil Value Plus DDR3 @1600Mhz Corsair Force GT 240GB SSD SAMSUNG SpinPoint F3 7200 
CoolingOSMonitorPower
Thermalright Archon PP 2x TY-140 Win7 x64 Enterprise Sony 42" LED Backlight LCD TV 1080p HD+ Seasonic M12D 850W 80+ Gold 
CaseOther
Cooler Master HAF-X Scythe Kaze Master 
  hide details  
Reply
post #9 of 10
Thread Starter 
do you know how to enable it???
Vaporizer
(16 items)
 
  
CPUMotherboardGraphicsRAM
AMD Ryzen 5 1600X 3.9Ghz@1.265V Gigabyte AB350N-Gaming WiFi Sapphire RX Vega 64 G.Skill Flare X 3200MHz CL14 
Hard DriveHard DriveCoolingOS
Seagate 1TB 2.5" HDD ST1000DM035 Samsung 960 Evo 250GB Noctua NH-D9L Windows 10 Pro 
MonitorKeyboardPowerCase
Dell U2515H K70 Lux Cherry Brown Corsair SF600 NCASE M1 V5 Silver 
Mouse
Steelseries Kana V2 
  hide details  
Reply
Vaporizer
(16 items)
 
  
CPUMotherboardGraphicsRAM
AMD Ryzen 5 1600X 3.9Ghz@1.265V Gigabyte AB350N-Gaming WiFi Sapphire RX Vega 64 G.Skill Flare X 3200MHz CL14 
Hard DriveHard DriveCoolingOS
Seagate 1TB 2.5" HDD ST1000DM035 Samsung 960 Evo 250GB Noctua NH-D9L Windows 10 Pro 
MonitorKeyboardPowerCase
Dell U2515H K70 Lux Cherry Brown Corsair SF600 NCASE M1 V5 Silver 
Mouse
Steelseries Kana V2 
  hide details  
Reply
post #10 of 10
it was enabled automatically after editing it
HAF silent-X
(18 items)
 
chargin ma lazor
(12 photos)
Nibble the World!
(1 photos)
CPUMotherboardGraphicsGraphics
Intel Xtreme QX9770 @4GHz Asus P5Q3 Deluxe Sapphire HD 6970 2GB cooled by Alpenföhn Peter 
GraphicsRAMHard DriveHard Drive
Sapphire HD 6950 @ 6970 [for sale] 16GB Geil Value Plus DDR3 @1600Mhz Corsair Force GT 240GB SSD SAMSUNG SpinPoint F3 7200 
CoolingOSMonitorPower
Thermalright Archon PP 2x TY-140 Win7 x64 Enterprise Sony 42" LED Backlight LCD TV 1080p HD+ Seasonic M12D 850W 80+ Gold 
CaseOther
Cooler Master HAF-X Scythe Kaze Master 
  hide details  
Reply
HAF silent-X
(18 items)
 
chargin ma lazor
(12 photos)
Nibble the World!
(1 photos)
CPUMotherboardGraphicsGraphics
Intel Xtreme QX9770 @4GHz Asus P5Q3 Deluxe Sapphire HD 6970 2GB cooled by Alpenföhn Peter 
GraphicsRAMHard DriveHard Drive
Sapphire HD 6950 @ 6970 [for sale] 16GB Geil Value Plus DDR3 @1600Mhz Corsair Force GT 240GB SSD SAMSUNG SpinPoint F3 7200 
CoolingOSMonitorPower
Thermalright Archon PP 2x TY-140 Win7 x64 Enterprise Sony 42" LED Backlight LCD TV 1080p HD+ Seasonic M12D 850W 80+ Gold 
CaseOther
Cooler Master HAF-X Scythe Kaze Master 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Air Cooling
Overclock.net › Forums › Cooling › Air Cooling › CPU fan PULL air vs PUSH air