Have the necessary Option ROM configuration.
Are pre-loaded and pre-installed with all required Intel software.
Include a preinstalled operating system that is mirrored mode out of the box.
Please refer to the HP White Paper titled "Advanced Host Controller Interface (AHCI) and
Redundant Array of Independent Disks (RAID) on HP Compaq dc7900 Business PCs" at
http://www.hp.com
for more information and instructions.
Ultra-slim Desktop
Maximum Memory
*
Supports up to 8 GB of DDR2 SYNCH DRAM using SO-DIMM modules. Slot 1 is black and must
always be populated. Not all memory configurations possible are represented below.
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.
SO-DIMM Size
Slot
Channel A Channel B
1
(black)
2
(white)
512-MB
512-MB
1-GB
1-GB
2-GB
(dual-channel symmetric)
1-GB 1-GB
4-GB
(dual channel symmetric)
2-GB 2-GB
8-GB maximum
(dual channel
symmetric)
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 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
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:
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
Slot
Channel A Channel B
1
(black)
2
(white)
3
(white)
4
(white)
512-MB
512-MB
1-GB
1-GB
2-GB
(dual-channel
symmetric)
1-GB
1-GB
4-GB
(dual-channel
symmetric)
1-GB 1-GB 1-GB 1-GB
8-GB
(dual-channel
symmetric)
2-GB 2-GB 2-GB 2-GB
16-GB maximum
(dual-channel
symmetric)
4-GB 4-GB 4-GB 4-GB
QuickSpecs
HP Compaq dc7900 Business PC
Standard Features and Configurable Components
DA - 13029 Worldwide QuickSpecs — Version 26 — 2/3/2010
Page 12
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