HP dc7800 manual Feature Difference Matrix by Form Factor, Sodimm Dimm, 4GB 8GB

System Overview

Table 2-1 shows the differences in features between the different PC series based on form factor:

Table 2-1

Feature Difference Matrix by Form Factor

	USDT	SFF	CMT
Memory:
# & type of sockets	2 SODIMM	4 DIMM	4 DIMM
Maximum memory	4GB	8GB	8GB
Serial ports	0	1 std., 1 opt. [1]	1 std., 1 opt. [1]
Parallel ports	0	1	1
DVI-D graphics port	1	0	0
Drive bays:
Externally accessible	1	2	4
Internal	1	1	2
PCIe slots:
x16 graphics	0	1 [3] [4]	1 [5]
x1	1 [2]	2 [3]	2
PCI 2.3 32-bit 5-V slots	0	1 half-height	3
		or	full-height
		2 full-height [6]
Power Supply Unit:
Module type	external	internal	internal
Power rating	135-watt	240-watt	365-watt

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, reversed-layout ADD2/SDVO PCIe card: height = 2.5 in., length = 6.6 in.

[5]Accepts reversed layout ADD2/SDVO card: height = 4.2 in., length = 10.5 in.

[6]Full-height PCI slots require installation of PCI riser card field option (full-height dimensions: height = 4.2 in., length = 6.875 in).

Technical Reference Guide www.hp.com 2-3