HP Compaq 6820s Quickspecs page 10

QuickSpecs
Memory
Up to 4096 MB of 667-MHz DDR2 SDRAM
Two DIMM slots
DIMM sizes supported: 512 MB, 1024 MB, and 2048 MB
Standard Memory
Optional Memory
Upgrades
Up to
1024 MB
1024 MB
1536 MB
2048 MB
4096 MB
Memory Upgrades
512 MB (512 MB x 1)
1024 MB (1024 MB x 1 or 512 MB x 2)
2048 MB (2048 MB x 1 or 1024 MB x 2)
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.
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. Full availability of 4 GB of memory requires Windows Vista Business 64-bit or Linux. With Windows
32-bit operating systems, the amount of usable memory is dependent upon your configuration, so that
above 3 GB all memory may not be available due to system resource requirements.
HP 1024-MB (DDR2 667 MHz) SODIMM
HP 2048-MB (DDR2 667 MHz) SODIMM
DA - 12768 Canada — Version 11 — May 8, 2008
Slot 1
1024 MB
512 MB
1024 MB
1024 MB
2048 MB
HP Compaq 6820s Notebook PC
Slot 2
Empty
512 MB
512 MB
1024 MB
2048 MB
EM994AA
EM995AA
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