[SOLVED] Fan Splitter Not Letting System boot

[SavMoto]

Hello I bought a 4 pin Fan splitter on amazon its has a 4Pin Female that plugs in to the mother board and then a 4pin male and 2- 3pin male connections the problem I am have is that when I plug this splitter in my computer will not boot I unplug and just plug a fan into the fan header on the mother board the computer boots now my mother board doesn't have a 4 pin fans connector its a 3 pin but I don't think it would matter. and my mother board is a HP Odense I know its not that good but I should still be able to plug more than one fan into the fan header.

 

[Lutfij]

Yes it will matter. You're also going to have to pass on pics to the header you're trying to work with on the board, as well as the entire board. Are you trying to transplant an HP prebuilt system into a new case? Also pass on a link to the fan splitter.

 

[SavMoto]

Yes it will matter. You're also going to have to pass on pics to the header you're trying to work with on the board, as well as the entire board. Are you trying to transplant an HP prebuilt system into a new case? Also pass on a link to the fan splitter.

Yes this was a pre built that I bought and I did transfer into to a new case which is a corsair spec-05 and I also have a EVGA 600W power supply
Here is the Amazon link:
Amazon Spliter
HP prebuilt:
HP 750-114
Mother board Pic:

 

[Karadjgne]

What fans is the splitter powering, 3pin or 4pin. Or are you trying to power both kinds.

A 4 pin header is pwm (almost always). That's 12v, ground, tachometer, pwm signal. The 4 wires. That's the 4 wire side of the splitter. What a splitter does is fake a single fan when running multiple fans by only having 1 tachometer hooked up.

So the 4 wire fan needs to absolutely go to the 4 wire part of the splitter, that'll be The fan the header thinks its running. The other 3 wire connectors should go to any other pwm fan, they just don't have the tachometer hooked up.

If you tried running a 3wire DC fan on the 4wire part of the splitter, the cpu thinks it has no cooling because there's no pwm signal pathway, so can refuse to boot.

If you use 3 wire DC fans on the other leads, a 3wire DC fan has no pwm, so will always receive 12v and ground, no tach, so runs 100%, all the time.

DC 3 wire fans work by changing voltages for speed control, pwm 4pin fans work by an on/off pulse in the pwm wire, always at 12v.

Not really compatible and get any control