board.
HP recommends dual-channel symmetric configurations for maximum performance.
HP recommends dual-channel symmetric configurations for maximum performance.
HP recommends dual-channel symmetric configurations for maximum performance.
HP recommends dual-channel symmetric configurations for maximum performance.
For best performance, add the same amount of total memory to each channel and do not mix speeds.
For dual-channel symmetric performance, the total amount of memory in each channel must be equal. If
speeds are mixed, speed will default to the slowest DIMM.
RAID
RAID
RAID
RAID
Redundant Array of Independent Drives
Redundant Array of Independent Drives
Redundant Array of Independent Drives
Redundant Array of Independent Drives
Flexible implementation:
DriveLock is supported while in RAID mode. Users can manage DriveLock password from within
F10 Setup. Locked drives will be displayed as such in the RAID option ROM interface.
Hard drive information can be viewed within F10 Setup while in RAID mode. Previously, the hard
drives will not appear in Drive Configuration when switching to RAID mode.
DPS Self Test can be executed on physical hard drives while in RAID mode.
The RAID Setup Utility (accessed through CTRL-I) can be protected by the F10 Setup password.
NOTE:
NOTE:
NOTE:
NOTE: RAID 1 is the only RAID configuration that HP Compaq dc7900 Business PC products offer as
factory configurations. The pre-configured systems:
Are only available on the CMT and SFF form factors. The USDT does not support RAID as it does
not allow for more than one hard disk drive.
Are complete RAID systems and have both drives installed.
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
Ultra-slim Desktop
Ultra-slim Desktop
Ultra-slim Desktop
Maximum Memory
Maximum Memory
Maximum Memory
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:
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.
SO-DIMM Size
SO-DIMM Size
SO-DIMM Size
SO-DIMM Size
Slot
Slot
Slot
Slot
Channel A
Channel A
Channel A
Channel A
Channel B
Channel B
Channel B
Channel B
1
1
1
1 (black)
2
2
2
2 (white)
512-MB
512-MB
512-MB
512-MB
512-MB
1-GB
1-GB
1-GB
1-GB
1-GB
2-GB
2-GB
2-GB
2-GB (dual-channel symmetric)
1-GB
1-GB
4-GB
4-GB
4-GB
4-GB (dual channel symmetric)
2-GB
2-GB
8-GB maximum
8-GB maximum
8-GB maximum
8-GB maximum (dual channel symmetric)
4-GB
4-GB
QuickSpecs
HP Compaq dc7900 Business PC
HP Compaq dc7900 Business PC
HP Compaq dc7900 Business PC
HP Compaq dc7900 Business PC
Standard Features and Configurable Components
DA - 13029 North America — Version 11 — February 9, 2009
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