Seasonic S12III-650 Guide De L'utilisateur page 12

b. For fanless power supplies, Sea Sonic recommends to mount fanless power supplies into
the computer case with their ventilation cover facing UPWARDS. However, there are extra
mounting-screw holes provided on the back of the power supply to allow for reverse
mounting, if necessary
2. Mainboard connection:
a. DO NOT force the connectors into place; the connectors are "keyed" so they can only fit one
way. Make sure the connectors lock in their place securely.
b. Connect the power supply end of the 24/20-Pin convertible connector to the appropriate
receptor on the power supply unit.
c. Connect the mainboard end of the 24/20-Pin convertible connector to the mainboard.
Depending on the mainboard, you may need to either attach or detach the 4-Pin module of
the 24/20-Pin connector.
d. Connect the + 12 V 4-Pin connector and the EPS + 12 V connector, if applicable.
e. If your system requires dual EPS + 12 V connectors, please connect the 8-Pin end of the
second CPU 8-Pin connector into the appropriate 8-Pin receptor on the power supply unit.
Then connect the mainboard end of this 8-Pin connector to the mainboard.
3. Peripheral components connection:
a. Connect one end of the peripheral cable to the power supply and the other end to the
component.
6