Compaq dc7800 manual Dimm Size Slot Channel a Channel B, GB maximum, Memory Configurations

QuickSpecs

HP Compaq dc7800 Business PC

Standard Features and Configurable Components

DIMM Size				Slot
		Channel A				Channel B
	1 (black)		2 (white)		3 (white)		4 (white)
512-MB	512-MB
1-GB	1-GB
1-GB(dual-channel	512-MB				512-MB
symmetric)
2-GB(dual-channel	1-GB				1-GB
symmetric)
2-GB(dual-channel	512-MB		512-MB		512-MB		512-MB
symmetric)
4-GB(dual-channel	1-GB		1-GB		1-GB		1-GB
symmetric)
8-GB maximum	2-GB		2-GB		2-GB		2-GB
(dual-channel
symmetric)

*The Intel Q35 Express chipset includes a built-in Management Engine (ME), which allocates memory for manageability functions. Management Engine memory is shared with system memory. If the PC contains a single DIMM, 16 MB of memory is pre-allocated for it at system startup. If the PC contains two DIMMs, 32 MB of memory is pre-allocated. This memory is not made available to the operating system, just as pre-allocated video memory is not available.

Memory Configurations	USDT	SFF	CMT
– One of the following* 512-MB DDR2 Synch Dram PC2-6400 (800-MHz) Non ECC (1 x 512)	X	X	X
1-GB DDR2 Synch Dram PC2-6400 (800-MHz) Non ECC (1 x 1GB)	X	X	X
1-GB DDR2 Synch Dram PC2-6400 (800-MHz) Non ECC (2 x 512)	X	X	X
2-GB DDR2 Synch Dram PC2-6400 (800-MHz) Non ECC (1 x 2GB)	X	X	X
2-GB DDR2 Synch Dram PC2-6400 (800-MHz) Non ECC (2 x 1GB)	X	X	X
2-GB DDR2 Synch Dram PC2-6400 (800-MHz) Non ECC (4 x 512)		X	X
3-GB DDR2 Synch Dram PC2-6400 (800-MHz) Non ECC (3 x 1GB)		X	X
4-GB DDR2 Synch Dram PC2-6400 (800-MHz) Non ECC (4 x 1GB)		X	X
4-GB DDR2 Synch Dram PC2-6400 (800-MHz) Non ECC (2 x 2GB)	X	X	X
8-GB DDR2 Synch Dram PC2-6400 (800-MHz) Non ECC (4 x 2GB)		X	X
512-MB DDR2 Synch Dram PC2-5300 (667-MHz) Non ECC (1 x 512)	X	X	X
1-GB DDR2 Synch Dram PC2-5300 (667-MHz) Non ECC (1 x 1GB)	X	X	X
1-GB DDR2 Synch Dram PC2-5300 (667-MHz) Non ECC (2 x 512)	X	X	X
2-GB DDR2 Synch Dram PC2-5300 (667-MHz) Non ECC (1 x 2GB)	X	X	X
2-GB DDR2 Synch Dram PC2-5300 (667-MHz) Non ECC (2 x 1GB)	X	X	X
2-GB DDR2 Synch Dram PC2-5300 (667-MHz) Non ECC (4 x 512)		X	X
3-GB DDR2 Synch Dram PC2-5300 (667-MHz) Non ECC (3 x 1GB)		X	X
4-GB DDR2 Synch Dram PC2-5300 (667-MHz) Non ECC (4 x 1GB)		X	X
4-GB DDR2 Synch Dram PC2-5300 (667-MHz) Non ECC (2 x 2GB)	X	X	X
8-GB DDR2 Synch Dram PC2-5300 (667-Mhz) Non ECC (4 x 2GB)		X	X

* Ultra-slim Desktop uses SODIMM modules. Small Form Factor and Convertible Minitower use DIMM modules.

Expandability

USDT

SFF

CMT

DA - 12744 Worldwide QuickSpecs — Version 13 — 12.14.2007 Page 10