HP Compaq dc7900 CMT User Manual

* The Intel Q45 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 SO-DIMM, 16 MB of memory is pre-
allocated for it at system startup. If the PC contains two SO-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.
Small Form Factor and Convertible Minitower
Small Form Factor and Convertible MinitowerSmall Form Factor and Convertible Minitower
Small Form Factor and Convertible Minitower
Maximum Memory
Maximum MemoryMaximum Memory
Maximum Memory * Supports up to 16 GB of DDR2 SYNCH DRAM using DIMM modules. Slot 1 is black and must
always be populated. Not all memory configurations possible are represented below.
NOTE:
NOTE:NOTE:
NOTE: For systems configured with more than 3 GB of memory and a 32-bit operating system, all
memory may not be available due to system resource requirements. Addressing memory above 4
GB requires a 64-bit operating system.
DIMM Size
DIMM SizeDIMM Size
DIMM Size Slot
SlotSlot
Slot
Channel A
Channel AChannel A
Channel A Channel B
Channel BChannel B
Channel B
1
11
1 (black) 2
22
2 (white) 3
33
3 (white) 4
44
4 (white)
512-MB
512-MB512-MB
512-MB 512-MB
1-GB
1-GB1-GB
1-GB 1-GB
2-GB
2-GB2-GB
2-GB (dual-channel
symmetric)
1-GB 1-GB
4-GB
4-GB4-GB
4-GB (dual-channel
symmetric)
1-GB 1-GB 1-GB 1-GB
8-GB
8-GB8-GB
8-GB (dual-channel
symmetric)
2-GB 2-GB 2-GB 2-GB
16-GB maximum
16-GB maximum16-GB maximum
16-GB maximum
(dual-channel symmetric)
4-GB 4-GB 4-GB 4-GB
* The Intel Q45 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.
USDT
USDTUSDT
USDT SFF
SFFSFF
SFF CMT
CMTCMT
CMT
Memory Configurations –
Memory Configurations –Memory Configurations –
Memory Configurations –
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
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
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
16-GB DDR2 Synch Dram PC2-6400 (800-Mhz) Non ECC (4 x 4GB) X X
QuickSpecs
HP Compaq dc7900 Business PC
HP Compaq dc7900 Business PCHP Compaq dc7900 Business PC
HP Compaq dc7900 Business PC
Standard Features and Configurable Components
DA - 13029 North America — Version 11 — February 9, 2009 Page 12

HP Compaq dc7900 CMT Specifications

General

Brand	HP
Model	Compaq dc7900 CMT
Category	Desktop
Language	English