Compaq EXS Series - Manual (Page 45)

4-18 Removal & Replacement Procedures
4.11.3 Installing a PCI Expansion Board
1. Prepare the computer for disassembly (Section 4.2).
WARNING: Power is continuous to the system board and power supply even when the power
switch is turned off. To prevent damage to the unit, disconnect the power cord from the power
source or the unit before beginning disassembly procedures.
2. Lay the computer down on its large base for greater stability.
3. Remove the access panel (Section 4.5).
4. If you are installing an expansion board for the first time, remove the expansion slot
cover.