Dell PowerVault 735N (Rackmount NAS Appliance) - Manual (Page 65)

Removing and Replacing Parts: Dell PowerVault 735N Systems Service Manual
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8. Press down on the DIMM with your thumbs while pulling up on the ejectors with your index fingers to lock the DIMM into the socket (see
Figure 25 ). When the DIMM is properly seated in the socket, the ejectors on the DIMM socket should align with the ejectors on the other
sockets with DIMMs installed.
9. Repeat steps 7 and 8 to install the remaining DIMMs.
DIMM Removal
To remove a DIMM, press down and outward on the ejectors on each end of the socket until the DIMM pops out of the socket (see Figure 26 ).
NOTES: This procedure assumes the power is off and you have access to the DIMM slots. See steps 1 through 6 of the DIMM
Installation procedure for these preliminary steps.
If you encounter difficulty in moving the ejector nearest to the chassis wall, press down on the opposite ejector and lift that end of the
DIMM slightly to free the DIMM from its socket.
Figure 26. DIMM Removal
1 Alignment keys (2)
2 DIMM socket ejectors (2)
Microprocessor
The microprocessor is contained within a single-edge contact (SEC) cartridge and heat sink assembly. The system board has two guide
bracket assemblies, which hold the SEC cartridge and heat sink assemblies. If your system has only one microprocessor, the secondary guide
bracket assembly connector must contain a terminator card. If your system has two microprocessors, the secondary microprocessor must
have the same operating frequency as the first. For example, if the system has a 866-MHz primary microprocessor, your secondary
microprocessor must also be a 866-MHz microprocessor.
Terminator Card Removal
To remove a terminator card, 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. Lift the terminator card up and out of the guide bracket assembly (see Figure 27 ).
Figure 27. Removing the Terminator Card
1 Terminator card
2 Tabs (2)
3 Guide bracket assembly
4 Socket