SINGULARITY COMPUTERS Wraith 2.0 Volta PowerBoard Manual page 14

UV On/Off Switch
This switch turns the built-in UV LEDs on the PowerBoard ON/OFF. It is a live switch, and the UV
lighting should immediately turn ON or OFF based on the position of the switch. There is no need
to reboot the system.
PWM/Fan Connectors
The PowerBoard acts as a powered PWM/Fan hub. A PWM source, like a motherboard CPU Fan
header, must be connected to the FAN-IN header on the PowerBoard. The PowerBoard shares this
PWM signal to all PWM outputs. What signal goes into the input will be the same control signal
sent to every fan connected to the PowerBoard. The PowerBoard does not show up as an
individual component in fan controlling software, but it can be controlled by controlling the
motherboard CPU Fan header, which will show up in software. The PowerBoard PWM headers are
powered by the power supply, so there is less strain on the motherboard. Only FAN-1-OUT-RPM
monitors the speed of a connected fan which is reported back to the motherboard. If no fan is
connected to this header, the motherboard will see zero RPM even if all other headers have fans
connected to them, so populate FAN-1-OUT-RPM first with a fan that You would like to monitor
the RPM of. The PWM headers are conveniently located where they are expected to be used, close
to radiator mounts.
Power, Reset, LED Header
Connect the motherboard front panel headers to this header to enable functionality of the touch
button on the back side of the PowerBoard, the POWER and RESET buttons on the front side and
the header for the front panel button on the case. Refer to the motherboard's manual for the
pinout of its front panel header:
Connect PWR_BTN (motherboard) with POWER SW cable to PWR (PowerBoard) Polarity matters,
although it varies by motherboard maker. If it is wired the wrong way then the system will
automatically turn ON and then OFF, repeatedly. It is the same behaviour from holding the power
button indefinitely. If this is the case, turn the power supply main switch to OFF and reverse the
connector polarity of the POWER SW cable either on the motherboard or on the PowerBoard side.
Connect RESET (motherboard) with RESET SW cable to RST (PowerBoard). +/- Polarity does not
matter.
Connect POWER_LED (motherboard) with POWER LED+/- cable to LED (PowerBoard) +/- Polarity
does not matter.
FRONT BUTTON HEADER: connect the main power button from the front panel here:
POWER SW cable to PWR (PowerBoard), polarity does not matter.
POWER LED+/- to LED (PowerBoard), polarity does not matter.
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