HP NC6400 manual Standard Memory, Optional Memory, Memory Upgrades

QuickSpecs

HP Compaq nc6400 Notebook PC

Memory

Support for up to 4096 MB* of 533- or 667-MHz DDR2 SDRAM

Two DIMM slots

DIMM sizes supported: 256 MB, 512 MB, 1024 MB, and 2048 MB

Standard Memory	256 MB (256 MB x 1)
	512 MB (512 MB x 1 or 256 MB x 2)
	1024 MB (1024 MB x 1 or 512 MB x 2)
	2048 MB (1024 MB x 2)
Optional Memory	Support for up to 4096 MB* of memory is available (with the installation of optional DDR2 SDRAM
Upgrades	memory kits). Both memory slots are user accessible. Please refer to the Hardware and Software Guide
	for installation procedures. Maximized dual-channel performance requires SODIMMs of the same size
	and speed in both memory slots.
Up to		Slot 1	Slot 2
768 MB		512 MB	256 MB
1024 MB		1024 MB	Empty
1024 MB		512 MB	512 MB
1280 MB		1024 MB	256 MB
1536 MB		1024 MB	512 MB
2048 MB		1024 MB	1024 MB
4096 MB*		2048 MB	2048 MB
	NOTE: This chart does not represent all possible memory configurations. Due to the non-industry
	standard nature of some third-party memory modules, we strongly recommend using only HP branded
	memory modules to ensure compatibility. If you mix memory speeds, the system will perform at the lower
	memory speed.
Memory Upgrades	256-MB 533-MHz DDR2 SDRAM		PE830A
	512-MB 533-MHz DDR2 SDRAM		PE831A
	1024-MB 533-MHz DDR2 SDRAM		PE832A
	512-MB 667-MHz DDR2 SDRAM		EM993AA
	1024-MB 667-MHz DDR2 SDRAM		EM994AA
	2048-MB 667-MHz DDR2 SDRAM		EM995AA

* Above 3-GB, all memory may not be available due to system resource requirements.

DA - 12446 Worldwide — Version 17 — August 10, 2007 Page 17