2. Remove all power:
a. Disconnect each power cord from the power source.
b. Disconnect each power cord from the server.
3. Disconnect all peripheral cables from the server.
4. Do one of the following:
If the server is in tower mode, place the server on a flat, level surface with the access panel facing up .
If the server is in rack mode, remove the server from the rack .
5. Remove the access panel.
6. If an expansion card with internal cables is installed on the riser, disconnect all cables from the expansion card.
7. If installed, remove the expansion card from the tertiary riser:
a. Loosen the stabilizer bracket captive screw (callout 1), and then pull the stabilizer bracket from the expansion card (callout 2).
b. Remove the expansion card from the tertiary riser.
8. If installed, remove the tertiary riser.