Feed PWM from GPU & Power From PSU To Case Fan Mounted On GPU

[bornlibra23]

Feed PWM from GPU & Power From PSU To Case Fan Mounted On GPU
I need to splice PWM signal from GPU & power from PSU to the case fans mounted on the graphics card. The original GPU fans have died & ordering from China is difficult & very expensive.

 

[TweaknFreak]

Every GPU has a temperature sensor. So you can attach fans to the heatsink on the GPU. Then using a PWM splitter, connect the 2 or 3 fans of the GPU to a single fan header on mobo. In Gigabyte Z699 BIOS, they let you control a fan speed based on various temp sensors present on your setup like processor, VRM, custom sensors etc. So you can map that header to the sensor of the GPU in there. I don't know if this is a feature available in other brands and chipsets but worth a shot if it is.

 

[bornlibra23]

No this isnt available on most motherboards. That why I am trying to get that info as a PWM signal directly from the GPU.

 

[TweaknFreak]

Oh, I see. Well good luck then.

Alternatively I think adding a fan controller and controlling them based on GPU temp might work.

 

[Harsh Todi]

you need CRJ 4 pin cable from GPU to any fans PWM, It can be controlled by GPU itself. Which GPU card you using?

 

[bornlibra23]

you need CRJ 4 pin cable from GPU to any fans PWM, It can be controlled by GPU itself. Which GPU card you using?

Zotac 980 Amp. Can you give me a link to the cable?

 

[Harsh Todi]

Here's the below link for your reference. You may search it in PC repair center or PC store , it may be there, It should be GPU 4pins connector ( small size than PWM fan connector)

Amazon.in

Yellow mark of GPU PWM on attached image. Hope you know how to dismantle it or technician may help if you find.

 

[vaibhavyagnik]

Just ziptie two fans on the heat sink and run them at full blast. It is not worth so much effort for such an old GPU

 

[bornlibra23]

I still need the card to run. Its all I have. Also I like to tinker.

 

[bornlibra23]

Here's the below link for your reference. You may search it in PC repair center or PC store , it may be there, It should be GPU 4pins connector ( small size than PWM fan connector)

Amazon.in

Yellow mark of GPU PWM on attached image. Hope you know how to dismantle it or technician may help if you find.

Thank you. I saw the cable on amazon. This is a splitter. I need the cable which splices the signals other way around. I will try to clobber something together.

 

[bornlibra23]

GPU PWM + PSU Power should go into the Fan.

 

[Mumbgamer]

You can try

GitHub - Rem0o/FanControl.Releases: This is the release repository for Fan Control, a highly customizable fan controlling software for Windows.

This is the release repository for Fan Control, a highly customizable fan controlling software for Windows. - Rem0o/FanControl.Releases

github.com

You can control chassis fan with gpu temps with this.
Zip tie case fans to the gpu and use the above software to control those fans

 

[bornlibra23]

Thank You. I will try this.