Compaq DESKPRO 2000 SERIES Maintenance & Service Manual page 135

To replace a memory module, follow these steps.
1. Perform preparation procedures described in Section 5.1.3.
2. Remove the system unit cover (Section 5.1.6).
3. Release the latches and rotate the module to a 45-degree position.
4. Lift the memory module out of the socket.
5. Replace the memory module as described in the in the preceding procedures.
Figure 5-19. Rotating the Memory Module Upright.
6. Replace the system unit cover.
5-22 Removal and Replacement Procedures