Supermicro SuperServer 120U-TNR User Manual page 53

Installing a Full-Height Expansion Card
1. Power down the system as described in section 3.1 and remove the cover.
2. Pull out the bracket and sections of the chassis in the rear.
Figure 3-10. Riser Card Bracket and Expansion Slots
3. If necessary, attach the riser card to the riser card bracket using screws.
4. Insert the expansion card into a slot on the riser card while aligning the expansion card
backplate with the open slot in the rear of the chassis.
5. Re-install the riser card bracket, inserting the riser card into the motherboard expansion
slot while aligning the riser card bracket with the rear of the chassis.
6. For GPUs, if necessary, connect the GPU power cables to one of the 8-pin power
connectors on the motherboard.
Chapter 3: Maintenance and Component Installation
53