PWM Fans

[Wasn't me]

Hey,

 

I was wondering how you connect more then one PWM fan to your motherboard.

I have a Asus Z87-Pro. It has 6 4-pin fan slots, but only the CPU connecter supports PWM mode.

But I would like to connect my PWM fans to the motherboard on such a way that they aren't volt regulated, but that they actually that advantage of the fact tbat they are PWM fans. I know of the existence of PWM splitters. But I keep on wondering: when I connect one of those to the CPU fan connecter on the motherboard,and then connect all of my fans to it, won't it treat all my fans like it is the CPU fan?

[Gofspar]

yep. they'll all recieve the same PWM signal. My advice would be to get some kind of independently controlled fan hub that uses PWM, probably mountes in a 5.25 inch bay at the front of the case. I've seen a few around.

 

your mobo should have more than just one PWM controlled hub. If it's got 4 pins it's PWM controlled

PWM fan controllers cost a fortune.

[Enderman]

yep. they'll all recieve the same PWM signal. My advice would be to get some kind of independently controlled fan hub that uses PWM, probably mountes in a 5.25 inch bay at the front of the case. I've seen a few around.

 

your mobo should have more than just one PWM controlled hub. If it's got 4 pins it's PWM controlled

no they dont

they are controlled by various temperature sensors on the motherboard

you can change the fan headers from DC to PWM control in the UEFI

and you can control the fan curve and what temperatures they respond to with fan xpert 2

[Wasn't me]

yep. they'll all recieve the same PWM signal. My advice would be to get some kind of independently controlled fan hub that uses PWM, probably mountes in a 5.25 inch bay at the front of the case. I've seen a few around.

 

your mobo should have more than just one PWM controlled hub. If it's got 4 pins it's PWM controlled

my case comes with: http://www.phanteks.com/PH-PWHUB.html

 

and the mobo has 2 PWM connecters( the other 4 pins are volt regualted): the CPU and the CPU OPT. Can I connect the fan hub with the CPU opt and then connect my fans to this fan hub. But the fan hub is 3 pin though.

[Wasn't me]

no they dont

they are controlled by various temperature sensors on the motherboard

you can change the fan headers from DC to PWM control in the UEFI

and you can control the fan curve and what temperatures they respond to with fan xpert 2

So although they are set as voltage regulated, I could change that in the bios to PWM regulated? or am I misunderstanding you?

[Enderman]

So although they are set as voltage regulated, I could change that in the bios to PWM regulated? or am I misunderstanding you?

im not sure about your UEFI since its older but mine has a 'q-fan' tab at the top that takes me to fan control and there I can switch between DC or PWM

look for something like that in yours

 

and why do you need PWM anyway? why do you want your fans to run at 20%?

[Wasn't me]

im not sure about your UEFI since its older but mine has a 'q-fan' tab at the top that takes me to fan control and there I can switch between DC or PWM

look for something like that in yours

 

and why do you need PWM anyway? why do you want your fans to run at 20%?

Well I upgraded my case. I wanted other fans because of esthetical reasons and because of the noise level. My brother still owned me a birthday gift so he wanted to pay them for me.

I gave him a link, but he ofcourse bought  PWM's. But now i have them, why not try and take advantage of them, or atleast that was my thought pattern. I'll look into the Q-fan thingy this a little later then. thanks for the tip.

 

edit: according to my manual it should be in there

http://imgur.com/q3RiHXq

[Ryoku]

Hey,

 

I was wondering how you connect more then one PWM fan to your motherboard.

I have a Asus Z87-Pro. It has 6 4-pin fan slots, but only the CPU connecter supports PWM mode.

But I would like to connect my PWM fans to the motherboard on such a way that they aren't volt regulated, but that they actually that advantage of the fact tbat they are PWM fans. I know of the existence of PWM splitters. But I keep on wondering: when I connect one of those to the CPU fan connecter on the motherboard,and then connect all of my fans to it, won't it treat all my fans like it is the CPU fan?

 

If your other headers don't support PWM, you can use splitters, but you'll need to find out How many amps the specific header can output. Then you need to calculate how many of your fans add up to that amount minus 10-20% for safety, never want to try and draw the absolute max off it.

[Enderman]

if they all come off of one header, they will all get the same PWM signal. That was the context

why would he plug all of the fans into a single header when there are plenty on the motherboard

[Wasn't me]

im not sure about your UEFI since its older but mine has a 'q-fan' tab at the top that takes me to fan control and there I can switch between DC or PWM

look for something like that in yours

 

and why do you need PWM anyway? why do you want your fans to run at 20%?

I can't chose between DC or PWM, just disable and enable ;(

[Enderman]

I can't chose between DC or PWM, just disable and enable ;(

hmmm

and there are no other settings in the UEFI to enable PWM?

 

have you tried connecting your fans to the headers anyway to see if they go below 40% with fan xpert?

there might be a setting in fan xpert 2 to enable PWM

idk because i use thermal radar, not fan xpert

[Wasn't me]

hmmm

and there are no other settings in the UEFI to enable PWM?

 

have you tried connecting your fans to the headers anyway to see if they go below 40% with fan xpert?

there might be a setting in fan xpert 2 to enable PWM

idk because i use thermal radar, not fan xpert

I can't find any, I can enable and disable PWM for my CPu fan but not the rest and i'll look into the fan xpert 2 thingy

 

Edit: I don't seem to have fan xpert 2 ...