Dell PowerVault 735N (Rackmount NAS Appliance) - Manual (Page 64)

Removing and Replacing Parts: Dell PowerVault 735N Systems Service Manual
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NOTE: The DIMMs must be rated to run at 133 MHz or faster.
DIMM Installation Guidelines
Starting with the socket nearest to the system board's back edge, the DIMM sockets are labeled "DIMM_A" through "DIMM_D" (see
Figure 24 ). When you install DIMMs, follow these guidelines:
Install a DIMM in socket DIMM_A before socket DIMM_B, socket DIMM_B before socket DIMM_C, and so on.
If you install different sizes of DIMMs, install them in order of descending capacity, beginning with the highest-capacity DIMM in socket
DIMM_A.
You do not need to install DIMMs in pairs.
Figure 24. DIMM Socket Locations
1 DIMM_D
2 DIMM_A
DIMM Installation
To install a DIMM, perform the following steps.
NOTICE: See " Protecting Against Electrostatic Discharge " for information on protecting the system from electrostatic discharge.
1. Turn off the system, including any attached peripherals, and disconnect the AC power cable from its power source.
2. Remove the front bezel .
3. Open the system doors .
4. Disconnect the AC power cable and all peripheral cables from the back panel of the system.
5. Locate the DIMM sockets in which you will install or replace DIMMs.
Figure 30 shows the relative location of the DIMM sockets on the system board. Figure 24 shows the labeling of the DIMM sockets.
6. Press down and outward on the ejectors on the DIMM socket, as shown in Figure 25 , to allow the DIMM to be inserted into the socket.
Figure 25. DIMM Installation
1 Alignment keys (2)
2 DIMM socket ejectors (2)
7. Align the DIMM's edge connector with the slot in the center of the DIMM socket, and insert the DIMM in the socket (see Figure 25 ).
The DIMM socket has two alignment keys that allow the DIMM to be installed in the socket in only one way.