Dell PowerVault 725N (Rackmount NAS Appliance) - Manual (Page 38)

Installing Memory Modules
1. Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.
2. Remove the system cover. See " Removing the System Cover ."
3. Locate the memory module sockets in which you want to install or replace the memory module(s). See Figure 4 -3 .
4. Press the ejectors on the memory module socket down and out, as shown in Figure 4 -17 , to allow the memory module to be inserted into the socket.
5. Align the memory module's edge connector with the alignment keys of the memory module socket, and insert the memory module in the socket.
6. Press down on the memory module with your thumbs while pulling up on the ejectors with your index fingers to lock the memory module into the
socket.
When the memory module is properly seated in the socket, the ejectors on the memory module socket align with the ejectors on the other sockets that
have memory modules installed.
7. Repeat step 3 through step 6 of this procedure to install the remaining memory modules.
8. Replace the system cover, and then reconnect the system and peripherals to the power source and turn on the system.
9. (Optional) Press <F2> to enter the System Setup utility, and check the System Memory setting on the main setup screen.
The system should have already changed the value to reflect the newly-installed memory.
If the value is incorrect, one or more of the memory modules may not be installed properly.
10. Repeat step 1 through step 8 of this procedure, checking to ensure that the memory modules are firmly seated in their sockets.
11. Run the system memory test in the System Diagnostics. See " Running the System Diagnostics ."
Figure 4-17. Installing and Removing a Memory Module
Removing Memory Modules
NOTE: The memory modules must be PC-2100 compliant. For technical specifications on memory modules, see " Technical Specifications ."
NOTICE: When you turn off the system, press the power button for less than 2 seconds. If you press the power button for longer than 3 seconds, the
system will automatically rebuild the RAID arrays the next time the system is turned on. This could impact system performance for several hours.
NOTE: The memory module socket has two alignment keys that allow you to install the memory module in the socket in only one way.
NOTE: When you turn on the system, press the power button for less than two seconds. If you press the power button for longer than 3 seconds,
the NAS system shuts down.
CAUTION: See your System Information Guide for complete information about safety precautions, working inside the computer, and protecting
against electrostatic discharge.