HP Compaq dc7900 USDT

Technical Reference Guide www.hp.com 2-3
System Overview
Table 2-1 shows the differences in features between the different PC series based on form factor:
NOTES:
[1] 2nd serial port requires optional cable/bracket assembly.
[2] PCIe Mini Card slot.
[3] Supports low-profile card in standard configuration. Not accessible if PCI riser card field option
is installed.
[4] Accepts low-profile PCIe card: height = 2.5 in., length = 6.6 in.
[5] Full-height PCI slots require installation of PCI riser card field option (full-height dimensions: height
= 4.2 in., length = 6.875 in).
Table 2-1
Feature Difference Matrix by Form Factor
USDT SFF CMT
Processor types supported Intel Celeron,
Pentium dual-core,
Core 2 Duo
Intel Celeron,
Pentium dual-core,
Core 2 Duo,
Core 2 Quad
Intel Celeron,
Pentium dual-core,
Core 2 Duo,
Core 2 Quad
Processor wattage (max) 65 W 95 W 95 W
Memory:
# & type of sockets
Maximum memory
2 SODIMM
8 GB
4 DIMM
16 G B
4 DIMM
16 G B
Serial ports 0 1 std., 1 opt. [1] 1 std., 1 opt. [1]
Parallel ports 0 optional optional
Drive bays:
Externally accessible
Internal
1
1
2
1
4
2
Drive types supported 1 HDD,
1 slimline ODD
2 HDDs,
1ODD,
RAID1
2 HDDs,
2 ODDs,
RAID1
PCIe slots:
x16 graphics (PCIe 2.0)
x1 connector
x4 (x16 connector)
0
1 [2]
1 [3, 4]
1 [3]
1 [3, 4]
1
1
1
PCI 2.3 32-bit 5-V slots 0 1 half-height
or
2 full-height [5]
3
full-height
Power Supply Unit:
Module type
power rating
external
13 5 - w a t t
internal
240-watt
internal
365-watt