Water Pump Header (X370)

twf85 wrote: I initially plugged the water pump (Corsair H60) into the header labeled "CPU_OPT/W_PUMP", but I later read in the manual that header is "Chassis Optional/Water Pump Fan Connector". So I swapped the connectors around, placing the pump into "CPU_FAN1"/"CPU Fan Connector", and placed the cooler's fan into the other location. After looking in the BIOS, changing the "CPU_OPT/W_PUMP" to "Water Pump" mode changes the description above for that header to "Water Pump Speed". So which is it? Also, can anyone tell me if I should be selecting "DC" or "PWM" mode? Currently I have the H60 setup with two fans in Push/Pull, both currently designated "Water Pump" in the BIOS, with "DC" and "Full Speed" selected. The cooler is plugged into the CPU_FAN1 header, set to "Full Speed".

Labels for headers and connectors on a board use abbreviations. CPU_OPT is CPU Optional Fan, and W_PUMP is Water Pump. The manual is written by a native Chinese speaker in Taiwan, so it may not be grammatically perfect in every instance.

Since you can change the mode of that header's operation in the BIOS, from CPU Optional to Water Pump, that header is one or the other. The header behaves differently depending upon the setting.

An AIO cooler like the H60, which I have used in the past, has a three pin fan connector for the pump. Three pin connectors are always used with voltage/DC type fans or pumps, and are not PWM controlled. PWM control is always four pin.

Since the pumps of AIO coolers like this are rather weak, they should always be running at full speed to insure good circulation of the cooling liquid. A three pin fan header set to full speed will work with this pump, but I connected the pump directly to the PSU with a molex to three pin adapter.

Connecting a three pin fan or pump to a four pin PWM header in PWM mode, will always run the fan or pump at full speed.

PWM fans or PWM controlled pumps have four pin connectors, and while they can be controlled by the voltage/DC of a three pin header, the speed range of a four pin fan or pump will be less on a three pin header.

DC = three pin equivalent voltage control. PWM = four pin Pulse Width Modulation control, only for use with four pin fans or pumps.

If you want to run the fans on your H60 (stock fan? SOOO Loud! You use two fans, so who knows what they are) at full speed all the time, feel free to do that.

You CPU temperature seems high at idle. Do you have the appropriate AM4 mounting kit for your H60? Do the instructions say it is AM4 compatible?

I've seen Corsair offering AM4 mounting kits for some of their H series AIO coolers, but the H60 was not one of them. If you bought the H60 a while ago, I doubt it is truly AM4 compatible.

On my H105 I have my radiator fans hooked up to CPU_1 (with a Y splitter) and my pump hooked up to CPU_OPT/W_PUMP. I have CPU_OPT set to water pump and DC full speed just as you do and my fans set to a custom fan curve that drops to almost a complete stop below 30c and ramp up from 30c to max fan speed @65c. The silent setting also works fine. I am using a Z270 Gaming K6 and an i5 7600k clocked at 5ghz but the setup should be no different for you. I would ramp up to full fan speed at about 60c in your case as the H60 has a smaller radiator.