Does the Gigabyte Z97 D3H support PWM?

[tacticalkali]

I'm planning on upgrading the fans in my PC to Corsair MLs as my find my current non PWM fans are too loud. I know the Gigabyte has a spare 4 pin slot for a rear fan, however I've had conflicting advice on whether it is actually PWM enabled or not. Can anyone confirm that a PWM fan will work in PWM mode?

 

Alternatively can I run a splitter from the CPU 4 pin and run a PWM fan and the CPU fan from there?

 

 

Thanks

[Jurrunio]

why are your 3pin fans too loud? Modern boards should be able to control fan speed with DC mode. Maybe there's no toggle on your board for 4pin headers, but what if you put that fan on a 3pin header?

[tacticalkali]

1 minute ago, Jurrunio said:

why are your 3pin fans too loud? Modern boards should be able to control fan speed with DC mode. Maybe there's no toggle on your board for 4pin headers, but what if you put that fan on a 3pin header?

There are no 3 pin headers.

 

It's not that loud but I'd like to have something close to silence. They're going at about 800-1000rpm. I've tried changing the fan settings in the BIOS to "silent" but they don't seem to do anything so maybe its just for pwm?

[Jurrunio]

5 minutes ago, tacticalkali said:

There are no 3 pin headers.

 

It's not that loud but I'd like to have something close to silence. They're going at about 800-1000rpm. I've tried changing the fan settings in the BIOS to "silent" but they don't seem to do anything so maybe its just for pwm?

can the 4pin headers switch between PWM and DC mode then?

[tacticalkali]

1 minute ago, Jurrunio said:

can the 4pin headers switch between PWM and DC mode then?

I'm not sure, the manual just says they are 4 pin, so you would assume yes because you can also run a 3 pin although I can't control 3 pin speed.

 

But people are saying PWM is only supported on all fans in the 100 series

[Jurrunio]

2 minutes ago, tacticalkali said:

I'm not sure, the manual just says they are 4 pin, so you would assume yes because you can also run a 3 pin although I can't control 3 pin speed.

 

But people are saying PWM is only supported on all fans in the 100 series

that's why I mention DC mode. PWM means controling fan speed with signal pulses (PWM pin gets voltage = off, no voltage = powered), DC means controlling fan speed with voltage (max speed with 12V, half speed with say 7V, etc)

[tacticalkali]

1 minute ago, Jurrunio said:

that's why I mention DC mode. PWM means controling fan speed with signal pulses (PWM pin gets voltage = off, no voltage = powered), DC means controlling fan speed with voltage (max speed with 12V, half speed with say 7V, etc)

If it is DC, is it even worth getting a new fan?

Could i use a splitter to run off the PWM enabled CPU fan header

[Jurrunio]

Just now, tacticalkali said:

If it is DC, is it even worth getting a new fan?

if you can use DC mode, then no.

 

Just now, tacticalkali said:

Could i use a splitter to run off the PWM enabled CPU fan header

Yes, it will then follow the same fan speed (in %) as the CPU cooling fan.

[tacticalkali]

Just now, Jurrunio said:

if you can use DC mode, then no.

 

Yes, it will then follow the same fan speed (in %) as the CPU cooling fan.

So no problems running off a splitter then because i've heard it doesn't always work 

[Jurrunio]

4 minutes ago, tacticalkali said:

So no problems running off a splitter then because i've heard it doesn't always work 

it doesn't work only when the splitter gives one fan 2 wires instead of 3. 

[tacticalkali]

9 hours ago, Jurrunio said:

it doesn't work only when the splitter gives one fan 2 wires instead of 3. 

Would this work?

https://www.amazon.co.uk/Splitter-Computer-Converter-Sleeved-Braided-Black/dp/B01N1Z3FYD/ref=sr_1_3?keywords=pc+fan+splitter&qid=1571639688&sr=8-3

[Jurrunio]

8 hours ago, tacticalkali said:

Would this work?

https://www.amazon.co.uk/Splitter-Computer-Converter-Sleeved-Braided-Black/dp/B01N1Z3FYD/ref=sr_1_3?keywords=pc+fan+splitter&qid=1571639688&sr=8-3

Yes