Compaq 247320-003 - Deskpro 4000 - 5166 Model 2500/CDS Reference Manual page 133

The position of the expansion board cage in this
illustration is for demonstration purposes only. Be sure to
rest the expansion board cage upside down rather than on
either side of the cage.
Ref. Description
Smart Cover Lock
Power supply
Internal hard drive
Diskette drive or LS-120 Drive
Processor
Memory module (DIMM) sockets
System board
Embedded network interface controller
Embedded audio (CD-ROM drive models)
Accelerated Graphics Port (AGP) slot
Embedded Ultra-SCSI controller (Deskpro 6000 models)
Smart Cover Sensor
PCI graphics controller (Deskpro 4000 models)