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Fan Controller vs PWM Fans On MB

post #1 of 3
Thread Starter 
Hi there just getting ready to watercool my new x79 build and wondering what you guys think is better. Should I put all fans on a fan controller or get pwm fans and control from motherboard. My 2 MCP35X will be controlled by my motherboard also. Thanks
Main Beast
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CPUMotherboardGraphicsRAM
i7 3930K 4.5Ghz  Rampage IV Extreme  GTX 1080 FE 1080 SLI Almost 2Ghz Dominator Platinum 16GB 2133mhz  
Hard DriveOptical DriveCoolingOS
M4 256GBx2 Raid 0 + 4TB WD Black x2 Raid 0 LG Blu Ray Writer  Kraken X60 Windows 10 
MonitorKeyboardPowerCase
Asus ROG Swift PG278Q Logitech G810 Evga SuperNOVA 1500W NZXT Switch 810 
MouseMouse PadAudio
Logitech G900 Logitech G640 Sennheiser HD 700 
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Main Beast
(15 items)
 
  
CPUMotherboardGraphicsRAM
i7 3930K 4.5Ghz  Rampage IV Extreme  GTX 1080 FE 1080 SLI Almost 2Ghz Dominator Platinum 16GB 2133mhz  
Hard DriveOptical DriveCoolingOS
M4 256GBx2 Raid 0 + 4TB WD Black x2 Raid 0 LG Blu Ray Writer  Kraken X60 Windows 10 
MonitorKeyboardPowerCase
Asus ROG Swift PG278Q Logitech G810 Evga SuperNOVA 1500W NZXT Switch 810 
MouseMouse PadAudio
Logitech G900 Logitech G640 Sennheiser HD 700 
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post #2 of 3
If you control the fans from the motherboard they will speed up/slow down in relation to cpu temps, not water temps.

I doubt that a motherboard fan header could supply enough power to run one pump, much less two.

I think you're "over thinking" this. Just use a fan controller and you'll prretty soon learn what fan speeds to use for what you're currently doing.

In a Wcing set up it's always helpful to monitor water temps. That way you'll know how you WCing stuff is performing and the effect of any new WCing parts you install, and you will be installing new parts!
My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
FX6300 Black M5A99X EVO R2.0 Nvidia GTS450 Team Vulcan PC3 12800 
Hard DriveOptical DriveCoolingOS
Samsung 840 PRO Asus DRW-1608P (x2) Custom Water Cooling Win7 (Ult), Win 8.1 & Win Server 2012 R2 
MonitorKeyboardPowerCase
2 X Samsung 915N Ducky Shine III, Blue Cherry/Blue LEDs PCP&C 1kw Lian Li PC-71 (W/Window) 
MouseAudio
Logiteck G400s none 
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My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
FX6300 Black M5A99X EVO R2.0 Nvidia GTS450 Team Vulcan PC3 12800 
Hard DriveOptical DriveCoolingOS
Samsung 840 PRO Asus DRW-1608P (x2) Custom Water Cooling Win7 (Ult), Win 8.1 & Win Server 2012 R2 
MonitorKeyboardPowerCase
2 X Samsung 915N Ducky Shine III, Blue Cherry/Blue LEDs PCP&C 1kw Lian Li PC-71 (W/Window) 
MouseAudio
Logiteck G400s none 
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post #3 of 3
Your board seems to have headers for temperature sensors like my Rampage III Gene board. On that system Speedfan is reading a water temperature sensor connected to board header and then that value is used to control fan headers. If Speedfan already works with such a new board then you can use it to control pumps and fans.
Shinobi XL
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Cosmos 2
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Raven RV03
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CPUMotherboardGraphicsRAM
Intel Core i7-3770K Asrock Z77 OC Formula XFX Radeon HD 7870 XT Kingston HyperX Predator 2400 MHz 2*4 GB 
CoolingCoolingOSPower
EK Supreme HF EK-VGA Supreme HF Windows 7 Ultimate  Silverstone 1200W Strider Gold Evolution v2.0 
Case
Cooler Master Cosmos II 
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Shinobi XL
(11 items)
 
Cosmos 2
(9 items)
 
Raven RV03
(8 items)
 
CPUMotherboardGraphicsRAM
Intel Core i7-3770K Asrock Z77 OC Formula XFX Radeon HD 7870 XT Kingston HyperX Predator 2400 MHz 2*4 GB 
CoolingCoolingOSPower
EK Supreme HF EK-VGA Supreme HF Windows 7 Ultimate  Silverstone 1200W Strider Gold Evolution v2.0 
Case
Cooler Master Cosmos II 
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