How to fix the buzzing from the EVGA Hybrid Kit.
EVGA Hybrid Kit
I own the EVGA GTX 1070 FTW edition card, but decided that I wanted to reduce noise and temperatures by opting to upgrade to the EVGA Hybrid Kit. While I was able to achieve much lower temperatures, almost cutting them in half, I did notice a loud buzzing noise coming from the pump. After doing some research online I found that it is quite a common occurrence when it comes to the EVGA Hybrid Kits, but there is a way to fix it.
The reason why there is a buzzing sound coming from the pump is that it is running at full speed of about 1800rpm. Unlike some other CPU pumps like the Corsair H100 v2 which can regulate the speed via power, the EVGA pump is not adjustable since it’s only a 2 pin cable. There are two ways that this can be fixed though, one that is easy and keeps the warranty in tact, while the other requires modding and voids the warranty. In this article I will go over the easy method.
For the easy method all you really need to do is to buy a 4 pin mini GPU to 4 pin fan header adapter. Then instead of using the splitter that is used to power the pump and the fan on the card, you’ll simply plug the pump fan in to the adapter and then in to a fan header on your motherboard and power the GPU fan as you normally would by plugging it directly in to the card.
Once the adapter is installed you will have to manually control the pump fan speed either via the BIOS settings on your motherboard or software. While Speedfan was once the recommended software for controlling fan speed I wasn’t able to have any success with it on the newer motherboards. In my BIOS there are some settings to adjust the fan speed via mode (Quiet/Normal/Performance) or through CPU temperature setting, but I didn’t like either option so I had to look elsewhere. I ended up finding a great application called Argus Monitor which not only allowed me to control the fan speed of the pump manually, but to also adjust the speed based on GPU temperature. What I decided as the final settings was to keep the pump speed at 50% (1400rpm), but have the radiator fan adjust based on a GPU temperature curve. You can find a screenshot below:
That’s all there is to it. With this simple adapter and with the Argus Monitor software you can reduce the speed of the EVGA Hybrid Kit pump which will virtually eliminate the buzzing sound.