Insufficient fan headers available.
Insufficient fan headers available.
Hey everyone, my mom's setup has one CPU fan header with 4 pins and a single chassis fan header that only has 3 pins. I just got an AIO and I'm unsure how to connect everything. Should I use a splitter on the CPU header and connect all the fans there, or is there another way?
The fan header on MOBO typically supports 1A (12V), which equals around 12W. Generally, a single fan consumes about 1.5 to 2W. When using a splitter with an external power source, you can connect as many fans as desired. If not, installing 3 to 5 fans should work fine. I’d recommend purchasing a few Arctic P12 PWM PST units (or P14 if space allows). These use just 1W each. They employ a PST technology that synchronously controls fan speed. You connect one unit to a header on the MOBO, and all fans receive the same signal. Although placement matters at longer distances, it’s usually manageable. These fans offer strong stability, reasonable pricing, a 10-year warranty, quiet operation, and high static pressure—ideal for AIO or radiator setups. If you’re working with what you have, a splitter is a smart choice. Be aware of the power draw of each fan and remember that one PWM connection on MOBO provides roughly 12W.
There are plenty of fans, that's no issue. I'm not very familiar with AIO. I don't really like LC, I prefer regular air and haven't had much experience with that before.
It doesn't necessarily mean all power comes from Molex connectors. The fan splitter could use different connector types depending on its design and requirements.