Author: parsec
Subject: Fatal1ty X99X Killer Motherboard Sensors
Posted: 10 Aug 2016 at 9:25am
I checked the specs for your Fractal Kelvin S36:
http://www.fractal-design.com/home/product/water-cooling/s36
The three fans are four pin PWM controlled fans, and the 3 into 1 fan cable makes perfect sense with those fans. This cable should be connected to the board's PWM controlled CPU_FAN1 header, with the three fans connected to this cable. They will all have their speed controlled by the mother board's fan control, which can be configured in the UEFI.
The pumps for this type of CPU cooler normally should run at full speed all the time. The manual does say that, but they also say that about the fans, which is usually not a good idea because of fan noise.
If you configure the fans to change their speed with the CPU temperature, if you connect the pump to the CPU_FAN2 connector, it will not run at full speed all the time. You can decide about the pump running at full speed or not. If you want the pump at full speed constantly, connect it to the Power Fan connector, which cannot be controlled by the mother board, by design. That connector is meant to be used with a fan or pump that should be run at full speed all the time.
You could connect the pump to one of the Chassis fan connectors, and configure it in the UEFI to run at several different speeds, depending upon the CPU temperature. That will be independent of the radiator fan speeds. You could configure the pump to run at say two speeds, low at CPU idle conditions, or full speed when the CPU is hotter than say 40C. You can experiment with the pump speed, using the CPU temperature you get as the deciding factor about running it at full speed all the time or not.
Subject: Fatal1ty X99X Killer Motherboard Sensors
Posted: 10 Aug 2016 at 9:25am
 DJViking wrote:I think I had it reversed. The CPU radiator pump had a 4pin power cable. That one I plugged into CPU_FAN1. The 3 radiator fans 3pin where attached to the CPU_FAN2. Edit: False alarm The pump is powered from a braided 3-Pin fan header cable |
I checked the specs for your Fractal Kelvin S36:
http://www.fractal-design.com/home/product/water-cooling/s36
The three fans are four pin PWM controlled fans, and the 3 into 1 fan cable makes perfect sense with those fans. This cable should be connected to the board's PWM controlled CPU_FAN1 header, with the three fans connected to this cable. They will all have their speed controlled by the mother board's fan control, which can be configured in the UEFI.
The pumps for this type of CPU cooler normally should run at full speed all the time. The manual does say that, but they also say that about the fans, which is usually not a good idea because of fan noise.
If you configure the fans to change their speed with the CPU temperature, if you connect the pump to the CPU_FAN2 connector, it will not run at full speed all the time. You can decide about the pump running at full speed or not. If you want the pump at full speed constantly, connect it to the Power Fan connector, which cannot be controlled by the mother board, by design. That connector is meant to be used with a fan or pump that should be run at full speed all the time.
You could connect the pump to one of the Chassis fan connectors, and configure it in the UEFI to run at several different speeds, depending upon the CPU temperature. That will be independent of the radiator fan speeds. You could configure the pump to run at say two speeds, low at CPU idle conditions, or full speed when the CPU is hotter than say 40C. You can experiment with the pump speed, using the CPU temperature you get as the deciding factor about running it at full speed all the time or not.