Toshiba Magnia 3310 - Manual (Page 105)

Installing and Removing Hardware
Memory module
87
12 Attach the exhaust fan unit so that the exhaust fan unit is
aligned with the two positioning pins on the enclosure, and
secure it with screws.
Be sure to turn the screws while holding the fan unit with your
hands to prevent the exhaust fan unit from falling.
Installing the exhaust fan unit
13 Attach the cable from the exhaust fan unit that you attached to
the motherboard.
Connect the standard exhaust fan module to FAN1 on the
motherboard.
Connect the redundant exhaust fan module to FAN1-R on the
motherboard.
Attaching the exhaust fan cables
positioning pins