one cpu fan not working

[Summon3r]

Hi guys i just put together a new system, has an ASRock extreme3 mobo with a 3930k cpu. and using this for a cpu cooler http://

only one of the fans is turning and it looks like the other one is trying to get going. they are hooked up via the cable splitter connector that came with the cooler and hooked into the "cpu fan 1" 4 pin connector..... do i need a 4 to 3 pin adapter to connect to the "cpu fan 2" 3 pin connector?

 

[scout_03]

the cooler came with the needed 4 pins splitter did you try to interconnect the non working fan with the power cable of the fan that work to see if it will spin so you wont need another splitter .

 

[Summon3r]

yea i have both fans connect via the splitter as the instructions said to. when i switched the connection on the splitter the fan that did turn previously was then turning and the previously spinning one was not.... are these temperature controlled? its a brand new build and i had only turned it one for a max of 2-3 mins, got to the windows install (where u select your language) screen then i got a black screen saying "no display signal" :-/

 

[scout_03]

on the specs they could be temp monitored for the no display check your gpu .

 

[scout_03]

for the splitter try to use one fan with both parts splitter to see if they spin cable could be defective .

 

[Summon3r]

any easy way of checking my gpu? apart from putting a different one in?

 

[Summon3r]

ok just tested my splitter, the 3 pin connection in the splitter seems to not be working, though if i give the fan a little help getting started it will spin on the 3pin part of the splitter... both fans run well on the 4 pin side of the spliter.... would this be a faulty splitter?

 

[scout_03]

then that the way it work they are temp controlled and the 4 pins one work with pwm from the motherboard and if you stress system a bit both fan should come on .

 

[Summon3r]

thx scout, so i dont need to worry about it being faulty?

 

[scout_03]

not for now since it work with the 4 pins check your temp on load and give a look in the 2 fan should start to spin to cool cpu .