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stupid question but, daisy chaining Fans to 4pin molex cable from PSU..?

post #1 of 3
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When you have like 8 things connected to the PSU cable for with molex 4 pin connectors, does it at any point overload that cable and begin diving out the power or just giving less power in general to the attached components?

Reason I ask is I had like 5 fans and etc... attached to one of the Molex periphreal cables coming out of my PSU and I wanted to make sure my fans connected are still going to run at MAX RPM despite 5 of them being connected to the same cable.

I didn't want the power being overdrawn and the fans running at lower RPMs though I don't know if that's possible.
post #2 of 3
Quote:
Originally Posted by XxAlbertoxX View Post

When you have like 8 things connected to the PSU cable for with molex 4 pin connectors, does it at any point overload that cable and begin diving out the power or just giving less power in general to the attached components?

Reason I ask is I had like 5 fans and etc... attached to one of the Molex periphreal cables coming out of my PSU and I wanted to make sure my fans connected are still going to run at MAX RPM despite 5 of them being connected to the same cable.

I didn't want the power being overdrawn and the fans running at lower RPMs though I don't know if that's possible.

 

They are rated for around 85 watts each. So if you are not overloading it, it should be fine.

 

The 5 fans should be getting the same amount of voltage off the molex and run at full RPM.

 

ケンジ
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ケンジ
(16 items)
 
  
CPUCPUMotherboardGraphics
i7-3960X i7-980X GA-X79-UD7 / GA-X58A-UD9 7970 + 465 
GraphicsRAMRAMHard Drive
2x 6990 + 580 16GB 2133 MHz 24GB 2000 MHz 120GB x 2 RAID0 
Hard DriveHard DriveCoolingCooling
120GB x 4 RAID0 Raptor 300GB x 2 RAID0 CPU-370 CPU-370 
CoolingCoolingOSPower
VID-AR699 EK FB X58A-UD9 Win 7 Ultimate x64 1500W / 1250W+1200W 
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post #3 of 3
depends on the PSU in question. if it's a single rail PSU, then you'd melt the cable before you overload the PSU:D

generally speaking, no. each fan usually draws less then 0.5 amp of power,(AP181 draws 0.45 amp) and 5 of them only add up to about 2.5 amps. even on a quad rail powersupply, each rail would generally supply at least 16 amps(as long as you have a quality powersupply)

now, if you go nuts and go buy some delta fans:D then you're on your own:D I've personally used 6 amp(72 watt) fans and they are LOUD!!!! biggrin.gif and delta make fans that go way above that:D
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