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Technical Reference Guide www.hp.com 2-5
System Overview
Figure 2-2. HP Compaq dc7900 Business PC Architecture, Block diagram
Parallel I/F [2]
Intel
Processor
Q45
82801
GMCH
SDRAM
Cntlr
PCI Express
ICH10
SATA
SATA
USB
I/F
Ch A DDR2
SDRAM
Ch B DDR2
SDRAM
SIO Controller
Cntlr.
Switch
VGA
Hard Drive
USB 2.0
Serial I/F [2]
Diskette I/F [2]
Kybd-Mouse I/F
x16 slot (PEG) [2]
PCIe x1 slots [4]
SATA
AD1884A
Subsystem
PCI 2.3 slots [3]
Keyboard
NIC
I/F
Mouse
Diskette [2]
Audio I/F
LPC I/F
PCI Cntlr.
DMI
DMI
Power Supply
Notes:
[3] 0 slots in USDT, 1 or 2 slots in SFF, 3 slots in CMT
SATA
Devices
Graphics
Audio
[4] 1 MiniCard slot in USDT, 1 slot in SFF and CMT
Analog Mon.
Digital Mon.
DisplayPort
[2] SFF and CMT only
[5] 8 ports accessible externally, 2 ports accessible internally
800/1066/1333-MHz FSB
PCIe x4 (x16 conn.) [2]
Ports (10) [5]
[1] 2 SATA ports in USDT, 3 SATA ports in SFF, 4 SATA ports in CMT, and 1 eSATA port in SFF and CMT.
I/F [1]
SATA
SATA/eSATA
Additional