Connect Two Fans To One Header

But make sure that fan controller can support the needed ampere to run all fans.

Connect two fans to one header.

Then they should run at the same rpm with the same voltage. Gelid solutions pwm y cable connect two pwm fans to one socket the pwm signal input from the mainboard is used to control a series of connected pwm fans for optimal performance in noise and cooling. It will be a mess. There is only one caveat.

It usually works to connect two fans to one header with a splitter cable. Each fan header is rated for up to 1 amp. That s true for either dc fans or pwm. Some high end boards will have one or mor 2a headers.

Use 83 of header rating to account for inrush current 1500 rpm fans. I had several fans from older computer builds so i hooked up 6 of them together all red bunched and all black bunched to make a bigger fan that i will us. 1250 rpm fans. Otherwise it can damage the fan controller.

Basically the block you attach to the cpu has a pump installed this pump head is powered by connecting the sata capable and there s also what looks like a 3 pin female that appears to connect to a fan header the pump is also connected to your motherboard by an internal usb connection the pump head also has two places where you can. Just connect one of the yellow ones. So again using that typical 140mm 1250 rpm fan 0 14 amps. Do not connect all 3 yellow to one input.

If the total current drawn by the two fans is less than that rating they can share the header but not if the total current exceeds 1 amp. Use 75 of header rating to account for inrush current.