Dell PowerVault 735N (Rackmount NAS Appliance) - Manual (Page 67)

Removing and Replacing Parts: Dell PowerVault 735N Systems Service Manual
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Replacing the SEC Cartridge and Heat Sink Assembly
To install the replacement SEC cartridge and heat sink assembly, see Figure 28 and perform the following steps:
1. Remove the terminator card or old SEC cartridge from the guide bracket assembly.
2. Slide the SEC cartridge into the guide bracket assembly, and firmly seat the assembly until the tabs on the guide bracket assembly snap
into place over the ends of the heat sink (see Figure 28 ).
3. Close the system doors .
System Board
Figure 29. System Board Removal
1 System board
2 Thumbscrew
To remove the system board, perform the following steps.