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