Compaq 247320-003 - Deskpro 4000 - 5166 Model 2500/CDS Reference Manual page 101

Your computer contains expansion slots, as follows:
PCI (Peripheral Component Interconnect) expansion slots
PCI/ISA shared expansion slot
ISA (Industry Standard Architecture) expansion slots
The graphics controller resides in either a PCI slot in the
expansion board cage, or in the AGP slot on the system
board.
To remove an expansion slot cover, follow these steps:
1. Remove the expansion board cage from the computer
chassis.
2. Locate the correct vacant slot in the expansion board cage.