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Your motherboard should register this CPU_FAN header as the primary one for CPU cooling. What is CPU_FAN?Ī motherboard’s 4-pin CPU_FAN header is its primary header for plugging in your CPU cooler’s fan, and it’s usually located near the CPU socket. It’s usually only when you need to connect multiple CPU fans that you should consider using the CPU_OPT header. The long story short is that you must have a CPU fan plugged into the CPU_FAN header, otherwise your motherboard likely won’t register that there’s a CPU fan connected at all. It can be disheartening to install one of the best gaming CPUs and a third-party CPU cooler only to find that there are two places to plug in its fan and you have no idea which header to use.Ī CPU fan’s connector can be plugged into either the CPU_FAN or CPU_OPT header on your motherboard-but choose wisely, because having it plugged into the wrong one can lead to your system not booting and your BIOS throwing out errors. :skull: Delidded Crewman :skull:​ĬPU: Ryzen 2600x | Motherboard: ASUS Crosshair VII Hero | GPU: XFX Fury X | RAM: G.SKILL TridentZ Series 16GB (2 x 8GB) 288-Pin DDR4 SDRAM DDR4 3200 F4-3200C14D-16GTZSW | Hard Drive: SAMSUNG 970 PRO M.2 2280 512GB PCIe Gen3.Often the most difficult step when building or upgrading a gaming PC is connecting all the power cables. You should look into that for the long-term. Overall, it's best to pull control signals off the mother board and run fan splitters to pull power thru SATA type power cables directly from the peripheral ports on the PSU. Best case scenario would be a 4-wire PWM-controlled fan.

You might need to plug at least one radiator fan into into CPU FAN which should stop the error message for now. Most pumps are Pulse Width Modulation controlled (double check your pump manual), so select PWM mode of operation for the W_Pump+ If you plug in only the sata/molex cable, the pump will run a constant 100%. If the pump has 2 leads, connect the small 2-wire lead into the W_Pump connector and connect the other lead to a sata cable connector or molex connector off the PSU.

If you have only 1 lead from the pump, plug it into the W_Pump+ motherboard connector. Your pump may have 1 wire lead (4 wires in lead) or 2 leads (one small one with 2 wires and one with a larger connector with 2, 3 or 4 wires). From here, it looks like you should plug your pump into W_Pump+.