ASROCK TRX40 Taichi Manual page 19

ASRock Utility Control Switch
SW1 Utility control
On Disabled
Off Enabled
SW2 SW3
Off Off
On Off
Off On
On On
SW4: no function
Card Fan Switch
Use this switch to control the card fan speed.
Off: Full (The fan runs at full speed)
ON: Half (The fan runs at half speed, with a half voltage supply)
Graphics 12V Power Connector
This card provides a 6-pin graphics 12V power connector. Install the PSU's
power cable to this connector when more than two M.2 cards* are installed.
*Intel Optane SSD 900P or other M.2 card with higher power consumption
CARD number
CARD 1
CARD 2
CARD 3
CARD 4
TRX40 Taichi
15