DEC 3000 Model 400S Installation & Owner's Manual page 51

Part IV
Option Removal and Installation
Procedures
Part IV provides the module/subassembly removal and
installation procedures for the DEC 3000 Model 400S/600S/700S
AXP Rackmount Server.
Because the rackmount server has a different chassis for rack
mounting, the procedures differ from the desktop products and
should be performed by trained service personnel.
This part consists of Chapter 5, Removal and Installation
Procedures.