Dell R420 Server User Manual


 
CAUTION: To prevent damage to the memory-module socket during installation, apply pressure at both ends
of the memory module evenly. Do not apply pressure to the center of the memory module.
7. Press down on the memory module with your thumbs until the memory module snaps into place.
Figure 17. Installing The Memory Module
1. memory module
2. memory-module ejectors
3. memory-module socket alignment key
4. memory-module alignment key
NOTE: When the memory module is properly seated in the socket, the levers on the memory-module socket
align with the levers on the other identical sockets that have memory modules installed.
8. Repeat step 4 through step 7 of this procedure to install the remaining memory modules.
9. Replace the cooling shroud.
10. Close the system.
11. Reconnect the system to its electrical outlet and turn on the system, including any attached peripherals.
12. Press <F2> to enter the System Setup, and check the memory settings.
The system should have already changed the value to reflect the newly installed memory.
13. If the value is incorrect, one or more of the memory modules may not be installed properly. Repeat step 4 through
step 7 of this procedure, checking to ensure that the memory modules are firmly seated in their sockets.
14. Run the appropriate diagnostic test. For more information, see Using System Diagnostics.
Hard Drives
Depending on the configuration, your system supports one of the following:
Four hard-drive
systems
Up to four 3.5 inch cabled hard drives, or
Up to four 3.5 inch hot-swappable SAS, SATA, or Nearline SAS hard drives, or
Up to four 2.5 inch hot-swappable SAS, SATA, SAS SSD, SATA SSD, or Nearline SAS hard
drives
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