Is there something wrong with the way my fans run?

[thijdjo]

Hello experts!

I just finished building my pc and I haven't connected it to a monitor or anything I just powered it to see if everything would work. Suddenly I had a sort of disco in my case haha, awesome feeling. But then I noticed my CPU Cooler didnt work. I figured it had to do with the prebuilt fan hub on the backside of my case, Phanteks Enthoo Pro. It had a cable which said to motherboard CPU_Fan. So that's what I did, because of that I couldn't plug the cable which comes from my Hyper 212 EVO anywhere, so I just left it hanging in there. So in this situation all case fans were running but the 212 EVO wasn't. So I switched it around, plugged the cable from the 212 into the motherboard, pulling out the one connected to the fan hub. I powered it again, this time the CPU cooler worked, but the case fans didn't. I really don't know what to do now, can this be fixed with some sort of application by Phanteks which lets me control all fans in the case connected to the fan hub? Should I plug the cable from the fan hub or from the CPU Cooler into my motherboard? Or is there a way to plug both in somewhere? I couldn't find it myself. My motherboard is a Z170-A.

Thanks in advance!

 

[synphul]

You're effectively plugging in different things to the same 'outlet'. If the cpu fan (212 evo) isn't plugged in it won't work, no power. If you unplug the fan hub from the motherboard, unless you used the optional sata power connector to power it, again no power to the hub. The hub uses the included cable to attach to the cpu_fan header on the motherboard. Then you plug your cpu cooler fan from the 212 evo into the hub behind the motherboard tray. Power goes from the fan header on the motherboard to the hub, then from the hub to other fans - including the cpu cooler.

The cooler won't spin if it's not plugged into anything just like a lamp won't turn on if it's not plugged into a wall socket.

You should be able to control the hub via the bios fan control for the cpu fan since that's what the hub plugs into. It's not a smart fan controller, it just splits power from a source to other fans.

 

[Paperdoc]

Read my lengthy post here:

http://www.tomshardware.com/answers/id-2936677/cpu-fan-port-mobo-fan-cooler-hub-backside.html

for an explanation of how the Phanteks PWM Hub that comes with your Enthoo Pro case works.

Phanteks recommends that you plug the Hub's 4-pin female connector into the CPU_FAN port, and then plug the actual CPU cooler (your Hyper 212 EVO) into the Hub's Port #1 (white), and all your other fans into other Hub ports. This is simply to be SURE the Hub gets a PWM signal to use, as explained in my other post. The "problem" I see with this is that it puts all fans under a control system based on the temperature measured inside the CPU chip. My alternative suggestion detailed in that post is to connect only the Hyper 212 EVO unit to the CPU_FAN port, and connect the Hub's 4-pin connector to a mobo 4-pin SYS_FAN port. But then you MUST check to ensure that the mobo SYS_FAN port is really operating in PWM mode and providing the PWM signal to the Hub. My post details how to do that. If you do that and it works, all your case ventilation fans will be under a different control system based on temperature measured on the mobo, and not inside the CPU chip.

It is important the the Hub also needs its SATA connector plugged into a SATA power output connector from the PSU. That is where it gets the power for several fans, avoiding overloading a single mobo fan port.

It is VERY IMPORTANT that your CPU cooling system, the Hyper 212 EVO be plugged in properly and running. Running a system with NO CPU cooling could destroy the CPU chip! For that reason the mobo has a couple of safety checks in place, with the result that it simply will NOT start up if it cannot detect that the CPU cooling fan is turning. And the way it does that is to check the fan speed signal being sent back from the CPU cooler to the CPU_FAN port of the mobo. IF you hook up everything according to Phateks' recommendation, then you MUST ensure that your Hyper 212 EVO unit is connected to Hub Port #1 so its fan speed can be forwarded back to the CPU_FAN port.

 

[thijdjo]

Thanks so much guys! It worked! Only thing is I had to bend the fan hub 1 in order for it to reach the cable. The cable is very tight now but it is connected to first hub's fan port. And all my fans run at the same time. Is it a big deal to have the thing facing up instead of down in order to reach the cable?

 

[Paperdoc]

Glad you got it working. I'm not sure what "thing" you have "facing up".