Compaq Deskpro 4000 - Figure 2-7. System Architecture

Technical Reference Guide
Compaq Deskpro 4000 and 6000 Personal Computers
featuring the Pentium II Processor
First Edition – October 1997
2-9
[1] Only three PCI connectors on desktop.
Figure 2–7. System Architecture, Block diagram
Pentium II
Processor
440LX
(North
Bridge)
PIIX4
(South
Bridge)
32-Bit
PCI Bus 0
ISA Connectors
(
3
)
Pri.
IDE I/F
USB
I/F (2)
System
Memory
64-Bit
Mem. Bus
Power
Supply
BIOS ROM
and Buffers
Sec.
IDE I/F
Graphics
Cntlr. Card
Deskpro 6000 onlyDeskpro 4000 only
PCI Connector 1
PC 87307 I/O Controller
Diskette
I/F
Keyboard/
Mouse I/F
Serial
I/F
(
2
)
Parallel
I/F
IrDA
I/F
PCI Connectors 2-4
[
1
]
IDE
Hard Drive
Ultra SCSI
Hard Drive
Ultra SCSI
Controller
NIC
I/F
Audio
Subsystem
16-Bit ISA Bus
AGP Connector
64-Bit Host Bus
32-Bit
AGP Bus
Audio