HP QUICKSPECS DC7900 User instructions

HP recommends
Windows Vista® Business
Ultra-slim Desktop
1. Rear I/O: (6) USB 2.0, (1) DisplayPort, (2) PS/2, (1) RJ-45, (1)
VGA port, (1) audio in, (1) audio out
6. (1) Optical disk drive (slimline)
2. (1) 2.5” internal hard disk drive bay 7. HP 2-button optical scroll mouse
3. Front I/O: (2) USB 2.0, headphone and microphone 8. HP keyboard
4. 135W 87% efficient external power adapter 9. HP Monitor (sold separately)
5. Tower stand (sold separately)
QuickSpecs
HP Compaq dc7900 Business PC
Overview
DA - 13029 Worldwide QuickSpecs — Version 24 — 10/30/2009 Page 1

Small Form Factor
1. HP Monitor (sold separately) 6. HP keyboard
2. Rear I/O: (6) USB 2.0, (1) serial port, (2) PS/2, (1) RJ-45,
(1) VGA port, (1) DisplayPort, (1) audio in, (1) audio out
Optional: 2
nd
serial port, (1) parallel port, (1) eSATA port
7. (1) 3.5-inch external drive bay supporting media card
reader, diskette drive, or secondary hard disk drive
3. (1) low profile PCI slot, (1) low profile PCI Express x1
slot, (2) low profile PCI Express x16 slots
( NOTE: 2
nd
x16 slot has x4 connectivity. )
8. (1) Optical disk drive
4. Front I/O: (2) USB 2.0, headphone and microphone 9. (1) 3.5-inch internal drive bay supporting primary hard
disk drive
5. HP 2-button optical scroll mouse 10. 240-watt standard efficiency power supply
Optional: 85% efficient energy saving power supply
QuickSpecs
HP Compaq dc7900 Business PC
Overview
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Convertible Minitower
1. (2) Optical disk drives
(2) 3.5” internal hard disk drive bays
6. Front I/O: (2) USB 2.0, headphone and microphone
2. 365-watt standard efficiency power supply, Active Power
Factor Correction (PFC)
Optional: 85% efficient energy saving power supply
7. (3) full-height PCI slots, (1) full-height PCI Express x1
slot, (2) full-height PCI Express x16 slots
( NOTE: 2
nd
x16 slot has x4 connectivity. )
3. (1) 5.25” removable media drive bay 8. HP 2-button optical scroll mouse
4. Rear I/O: (6) USB 2.0, (1) serial port, (2) PS/2, (1) RJ-45,
(1) VGA, (1) DisplayPort, (1) audio in, (1) audio out
Optional: 2
nd
serial port, (1) parallel port, (1) eSATA port
9. HP keyboard
5. Media card reader or Floppy disk drive 10. HP Monitor (sold separately)
QuickSpecs
HP Compaq dc7900 Business PC
Overview
DA - 13029 Worldwide QuickSpecs — Version 24 — 10/30/2009 Page 3

At A Glance
Designed for long-term deployment within commercial and institutional organizations
Guaranteed lengthy purchase lifecycles and image stability
Integrated dual independent monitor support via both a VGA and DisplayPort monitor interface
Optional 85% efficient power supplies
ENERGY STAR qualification for dc7900e models
Intel® Q45 Express chipset featuring Intel's Graphics Media Accelerator 4500
Software image fully compatible across all models and form factors
BIOS developed and engineered by HP for better security, manageability and software image stability
Created using industry leading Design for Environment standards
Supports industry standard management protocols including DASH, Intel Standard Manageability, and Intel Core 2
Processor with vPro Technology (on select models)
CMT and SFF models can be configured with multiple hard disk drives in a RAID array
Selected configurations with global availability easily set up and ordered through HP.com Business to Business portals
( http://h10019.www1.hp.com/business-site/index.html )
Tailored HP Factory Express deployment and lifecycle services available
( http://h71028.www7.hp.com/enterprise/cache/97688-0-0-225-121.aspx )
Protected by HP Services, including standard warranties up to 5-5-5 (terms and conditions vary by country; certain
restrictions and exclusions apply)
Tool-less serviceability features for easier upgrades and repairs
Choice of professional chassis form factors to accommodate the desired mix between expandability and size
* TPM module and cryptographic software disabled where use is restricted by law; for example, Russia and China.
QuickSpecs
HP Compaq dc7900 Business PC
Overview
DA - 13029 Worldwide QuickSpecs — Version 24 — 10/30/2009 Page 4

Model Key and Example
NOTE: This diagram is an example that illustrates how to read the model number. It is not intended to give every available
configuration choice specified in the body of this document and may include references to modules that are out of date and
no longer available.
QuickSpecs
HP Compaq dc7900 Business PC
Configurable Components - Select Models (localized by Regions)
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Operating System -
One of the following
Preinstalled Genuine Windows Vista Business 32 *
Genuine Windows Vista Business 64 *
Genuine Windows Vista Home Basic 32 *
Genuine Windows Vista Ultimate 32 *
Genuine Windows Vista Business with downgrade to Windows XP
Professional custom installed *+
FreeDOS †
Supported Genuine Windows XP Home Edition
Genuine Windows XP Professional
Certified SUSE Linux Enterprise Desktop
†
* Certain Windows Vista product features require advanced or additional hardware. See:
www.microsoft.com/windowsvista/getready/hardwarereqs.mspx and
www.microsoft.com/windowsvista/getready/capable.mspx for details. WindowsVista Upgrade
Advisor can help you determine which features of Windows Vista will run on your computer. To
download the tool, visit: www.windowsvista.com/upgradeadvisor .
+ Windows Vista Business disk may be included for future upgrade if desired. To qualify for this
downgrade an end user must be a business (including governmental or educational institutions)
and is expected to order at least 25 customer systems with the same custom image.
† The following features are not supported on Linux certified systems:
HP 22-in-1 Media Card Reader
HP 1.44-MB External USB Diskette Drive
TPM 1.2 Security Chip
Intel Pro 1000 PT PCIe x1 Gigabit NIC
Broadcom NetXtreme Gigabit Ethernet Plus PCIe NIC
HP 802.11b/g/n Wireless PCIe x1 Card (SFF and MT)
Intel WiFi Link 5100 a/b/g/n (USDT) Wireless NIC
Agere PCI 56K International SoftModem
LSI PCIe x1 56K International SoftModem
ATI Radeon 3470 256MB SH PCIe x16 graphics card
ATI Radeon HD 2400XT 256MB DH PCIe x16 graphics card
ATI Radeon HD 3650 512MB DH PCIe x16 graphics card
NVIDIA Quadro NVS 290 256MB dual head graphics adapter
HP USB Smartcard Keyboard
HP 2nd Serial Port
Parallel port adapter
eSATA port adapter
HP FireWire / IEEE 1394 PCI Card
Value-added Software
(included with all models;
not included with
FreeDOS)
HP ProtectTools Security Suite † HP Software Management Agent
HP Backup and Recovery Manager PDF Complete
HP Insight Diagnostics Computrace for Desktops (in the HP BIOS) *
† Not included on models configured with less than 1 GB system memory.
* Computrace agent is in HP BIOS. For tracking and tracing services, available in select countries,
separate software and purchase of a subscription is required.
QuickSpecs
HP Compaq dc7900 Business PC
Standard Features and Configurable Components
DA - 13029 Worldwide QuickSpecs — Version 24 — 10/30/2009 Page 6

Value-added Software
(included with select
models; not included with
FreeDOS)
Computer Setup Utility Microsoft Office 2007 Personal
McAfee Total Protection Anti-Virus †* Microsoft Office 2007 Professional
Sonic/Roxio Easy Media Creator 9
or
Roxio Business Creator 10
Microsoft Office 2007 Small Business
HP Power Manager v2.0 Microsoft Works 8.5
HP Total Care Advisor † Firefox-HP Virtual Browser
Microsoft Office 2007 Basic Corel WinDVD 8
† Not included on models configured with less than 1 GB system memory.
* 60 day trial period for McAfee Total Protection for Small Business software. Internet access
required to receive updates. First update included. Subscription required for updates thereafter.
HP Client Management
Solutions
(available for free
download from the Web
http://www.hp.com/go/
easydeploy )
HP Client Configuration Manager Basic Edition HP Out-of-Band Management Console
(for Intel management technology enabled
models)
HP Client Manager for Altiris Altiris Out-of-Band Management Solution (for
Intel AMT enabled models)
HP SoftPaq Download Manager HP Systems Software Manager
HP Client Catalog for Microsoft SMS
Value-added Services
and Features
HP Stable Platform Program Factory Express Deployment and Lifecycle
Services
Business-to-Business Portals Intel Standard Manageability
HP Global Series Services Intel Core 2 processor with vPro Technology
TPM 1.2 security module *
* TPM module disabled where use is restricted by law; for example, Russia.
Service and Support On-site Warranty and Service
1
: This three-year (3-3-3), limited warranty and service offering
delivers three years of parts, labor and on-site repair. Response time is next business-day
2
and
includes free telephone support
3
24 x 7. Global coverage
2
ensures that any product purchased in
one country and transferred to another non-restricted country will remain fully covered under the
original warranty and service offering. Some countries/regions do not offer one year onsite and
labor.
1
Terms and conditions may vary by country. Certain restrictions and exclusions apply.
2
On-site service may be provided pursuant to a service contract between HP and an authorized
HP third-party provider, and is not available in certain countries. Global service response times are
based on commercially reasonable best effort and may vary by country.
3
Technical telephone support applies only to HP-configured, HP and HP-qualified, third-party
hardware and software. Toll-free calling and 24 x 7 support may not be available in some
countries.
QuickSpecs
HP Compaq dc7900 Business PC
Standard Features and Configurable Components
DA - 13029 Worldwide QuickSpecs — Version 24 — 10/30/2009 Page 7

Ultra-slim Desktop Small Form Factor Convertible Minitower
Dimensions
Chassis Dimensions
(H x W x D)
2.60 x 9.90 x 10 in
(66.0 x 251.5 x 254 mm)
3.95 x 13.3 x 14.9 in
(100.3 x 337.8 x 378.5)
17.63 x 7.0 x 17.8 in
(447.8 x 177.8 x 452.12 mm)
Optional Tower Stand
Dimensions (H x W x D)
1.26 x 4.82 x 6.69 in
(32.0 x122.3 x 170.0 mm)
1.05 x 6.95 x 7.83 in
(26.75 x 176.46 x 198.87 mm)
N/A
System weight * 7.0 lb (3.18 kg) 18.75 lb (8.50 kg) 26.2 lb (11.89 kg)
System volume 4.21 liters 13 liters 36 liters
Shipping weight * 14.34 lb (6.52 kg) 26.10 lb (11.86 kg) 34.60 lb (15.72 kg)
Maximum supported
weight (desktop
orientation)
77.1 lb (35 kg) 77.1 lb (35 kg) 77.1 lb (35 kg)
Shipping box dimensions
(H x W x D)
8.60 x 15.68 x 19.68 in
(218.4 x 398.3 x 499.9 mm)
9.00 x 19.68 x 23.38 in
(228.6 x 499.9 x 593.85 mm)
24.25 x 12.33 x 22.13 in
(616.0 x 313.2 x 562.1 mm)
* Configured with 1 hard drive, 1 optical drive, no diskette drive, and no PCI card.
Ultra-slim Desktop Small Form Factor Convertible Minitower
Standard Efficiency
Power Supply
N/A 240W active PFC 365W active PFC
Energy Efficient Power
Supply
135W active PFC
87% efficient
240W active PFC
85% efficient
365W active PFC
85% efficient
External power supply
dimensions:
6.7 x 2.6 x 1.5 in
Total length of external power
supply and power cord:
12 feet 8 inches
Ports
USB 2.0 (8) Total
(2) front, (6) rear
Serial N/A (1) Standard
Optional 2
nd
port available
Parallel N/A Optional (1)
eSATA N/A Optional (1)
PS/2 (1) keyboard; (1) mouse
Video (1) VGA; (1) DisplayPort
DVI output available via ADD2 card or optional DisplayPort to DVI adapterr
Support for Multi-Monitor Integrated dual independent monitor support standard;
> 2 via ADD2 card or optional graphics cards
Audio Front – mic and headphone
Rear – input (supports microphone or line input), line out
NIC (RJ-45) Integrated Intel 82567LM GbE Network Connection
Slots
Type and quantity (1) mini PCI Express (1) PCI
(1) PCI Express x1
(2) PCI Express x16
(3) PCI
(1) PCI Express x1
(2) PCI Express x16
Slot specifications Accommodates low profile
cards only
Graphics slots support
35W cards
2
nd
PCIe x16 slot
functions electrically as a
x4
Accommodates full height
cards
1
st
graphics slot supports
75W card; 2
nd
graphics
slot support 35W card
2
nd
PCIe x16 slot
functions electrically as a
x4
QuickSpecs
HP Compaq dc7900 Business PC
Standard Features and Configurable Components
DA - 13029 Worldwide QuickSpecs — Version 24 — 10/30/2009 Page 8

USDT SFF CMT
Chipset Intel Q45 Express chipset featuring Intel GMA 4500 DirectX 10 graphics XXX
Processor and Speed *
One of the following
Intel Celeron Processors:
Intel Celeron 440 processor
2.0 GHz, 512 KB L2 cache, 800 MHz FSB
XXX
Intel Celeron 450 processor
2.2 GHz, 512 KB L2 cache, 800 MHz FSB
XXX
Intel Celeron Dual-Core Processors:
Intel Celeron dual-core E1200 processor
1.6 GHz, 512 KB L2 cache, 800 MHz FSB
XXX
Intel Celeron dual-core E1400 processor
2.0 GHz, 512 KB L2 cache, 800 MHz FSB
XXX
Intel Celeron dual-core E1500 processor
2.2 GHz, 512 KB L2 cache, 800 MHz FSB
XXX
Intel Celeron E1600 processor
2.4-GHz, 512K L2 cache, 800-MHz FSB
X X
Intel Pentium dual-core Processors:
Intel Pentium dual-core E2200 processor
2.2 GHz, 1 MB L2 cache, 800 MHz FSB
XXX
Intel Pentium dual-core E2220 processor
2.4 GHz, 1 MB L2 cache, 800 MHz FSB
XXX
Intel Pentium dual-core E5200 processor
2.5 GHz, 2 MB L2 cache, 800 MHz FSB
XXX
Intel Pentium dual-core E5300 processor
2.6 GHz, 2 MB L2 cache, 800 MHz FSB
XXX
Intel Pentium dual-core E5400 processor
2.70 GHz, 2 MB L2 cache, 800 MHz FSB
XXX
Intel Pentium E6300 Processor
2.80-GHz, 2MB L2 cache, 800-MHz FSB
X X
Intel Core 2 Duo Processors:
Intel Core 2 Duo E7200 processor
2.53 GHz, 3 MB L2 cache, 1066 MHz FSB
XXX
Intel Core 2 Duo E7300 processor
2.66 GHz, 3 MB L2 cache, 1066 MHz FSB
XXX
Intel Core 2 Duo E7400 processor
2.80 GHz, 3 MB L2 cache, 1066 MHz FSB
XXX
Intel Core 2 Duo E7500 Processor
2.93 GHz, 3 MB L2 cache, 1066 MHz FSB
XXX
Intel Core 2 Duo E7600 Processor
3.06-GHz, 3 MB L2 cache, 1066-MHz FSB
X X
Intel Core 2 Duo E8300 processor
2.83 GHz, 6 MB L2 cache, 1333 MHz FSB
XXX
Intel Core 2 Duo E8400 processor
3.0 GHz, 6 MB L2 cache, 1333 MHz FSB
Featuring Core 2 Processor with vPro Technology
XXX
Intel Core 2 Duo E8500 processor
3.16 GHz, 6 MB L2 cache, 1333 MHz FSB
Featuring Core 2 Processor with vPro Technology
XXX
Intel Core 2 Duo E8600 processor
3.33 GHz, 6 MB L2 cache, 1333 MHz FSB
Featuring Core 2 Processor with vPro Technology
XXX
Intel Core 2 Quad Processors:
QuickSpecs
HP Compaq dc7900 Business PC
Standard Features and Configurable Components
DA - 13029 Worldwide QuickSpecs — Version 24 — 10/30/2009 Page 9

Intel Core 2 Quad Q8200 processor
2.33 GHz, 4 MB L2 cache, 1333 MHz FSB
X X
Intel Core 2 Quad Q8300 processor
2.50 GHz, 4 MB L2 cache, 1333 MHz FSB
X X
Intel Core 2 Quad Q8400 Processor
2.66-GHz, 4 MB L2 cache, 1333-MHz FSB
Featuring Core 2 Processor with vPro Technology
X X
Intel Core 2 Quad Q9400 processor
2.66 GHz, 6 MB L2 cache, 1333 MHz FSB
Featuring Core 2 Processor with vPro Technology
X X
Intel Core 2 Quad Q9550 processor
2.83 GHz, 12 MB L2 cache, 1333 MHz FSB
Featuring Core 2 Processor with vPro Technology
X X
Intel Core 2 Quad Q9650 processor
3.0 GHz, 12 MB L2 cache, 1333 MHz FSB
Featuring Core 2 Processor with vPro Technology
X X
Intel Core 2 Processor
with vPro Technology
All dc7900 Series models featuring this technology include processors which
are part of the Intel 2008 Stable Image Platform Program (SIPP) designed to
ensure the stability promise inherent in the value proposition of the HP
Compaq dc7900 Series business desktop, thus making these model the most
stable, secure, and manageable platforms available to enterprises today.
The 2008 SIPP processors are:
Core 2 Duo E8400, E8500, E8600
Core 2 Quad Q9400, Q9550, Q9650
Intel's Core 2 Processor with vPro Technology suite of features includes:
Intel Active Management Technology
an advanced set of remote management features and functionality
which provides network administrators the latest and most effective
tools to remotely discover, heal, and protect networked client systems
regardless of the system's health or power state. Intel Active
Management Technology includes all features described as part of
Intel Standard Manageability plus the following advanced management
functions:
Fast Call for Help – a client inside or outside the firewall may
initiate a call for help via BIOS screen, periodic connections, or
alert triggered connection
Remote Scheduled Maintenance – pre-schedule when the PC
connects to the IT or service provider console for maintenance.
Remote PCs can get required patches, be inventoried, etc by
connecting to their IT console or Service Provider when it's
convenient
Remote Alerts – automatically alert IT or service provider if
issues arise
Access Monitor – Provides oversight into Intel® AMT actions to
support security requirements
Microsoft NAP Support
Allows Intel Active Management Technology to gain access to a
Microsoft NAP enabled 802.1x network OOB to enable OOB SW
updates, inventories, remote diagnostics, etc. NAP is a new platform
and solution that controls access to network resources based on a
client computer's identity and compliance with corporate governance
policy. NAP allows network administrators to define granular levels of
network access based on who a client is, the groups to which the client
XXX
QuickSpecs
HP Compaq dc7900 Business PC
Standard Features and Configurable Components
DA - 13029 Worldwide QuickSpecs — Version 24 — 10/30/2009 Page 10

belongs, and the degree to which that client is compliant with corporate
governance policy. If a client is not compliant, NAP provides a
mechanism to automatically bring the client back into compliance and
then dynamically increase its level of network access.
When a client attempts to access the network or communicate on the
network, it must present its system health state or proof of health
compliance. If a client cannot prove it is compliant with system health
requirements (for example, that it has the latest operating system and
antivirus updates installed), its access to the network or communication
on the network can be limited to a restricted network containing server
resources so that health compliance issues can be remedied. After the
updates are installed, the client requests access to the network or
attempts the communication again. If compliant, the client is granted
unlimited access to the network or the communication is allowed.
Memory DDR2 SYNCH DRAM NON-ECC MEMORY
Memory upgrades are accomplished by adding single or multiple DIMMs of the same or varied
sizes. This chart does not represent all possible memory configurations. The HP Compaq dc7900
business desktop supports non-ECC DDR2 PC2-5300 (667-MHz) and PC2-6400 (800-MHz)
memory.
CAUTION: You must shut down the computer and disconnect the power cord before adding or
removing memory modules. Regardless of the power-on state, voltage is always supplied to the
memory modules as long as the computer is plugged in to an active AC outlet. Adding or removing
memory modules while voltage is present may cause irreparable damage to the memory modules
or system board.
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 Redundant Array of Independent Drives
Fl exible 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: 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.
QuickSpecs
HP Compaq dc7900 Business PC
Standard Features and Configurable Components
DA - 13029 Worldwide QuickSpecs — Version 24 — 10/30/2009 Page 11

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
* 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.
QuickSpecs
HP Compaq dc7900 Business PC
Standard Features and Configurable Components
DA - 13029 Worldwide QuickSpecs — Version 24 — 10/30/2009 Page 12

USDT SFF CMT
Memory Configurations
– One of the following
512-MB DDR2 Synch Dram PC2-6400 (800-MHz) Non ECC (1 x 512) XXX
1-GB DDR2 Synch Dram PC2-6400 (800-MHz) Non ECC (1 x 1GB) XXX
2-GB DDR2 Synch Dram PC2-6400 (800-MHz) Non ECC (1 x 2GB) XXX
2-GB DDR2 Synch Dram PC2-6400 (800-MHz) Non ECC (2 x 1GB) XXX
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) XXX
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
Expandability USDT SFF CMT
PCI slots N/A (1) LP (2.5”), length (6.6”)
standard;
(2) FH (4.2”), length (6.875”) via
optional riser card.
NOTE: With optional riser card,
PCIe x1 and PCIe x16 slots are
not accessible.
(3) FH (4.2"), length (10.5”)
Max power per slot N/A 25W 25W
PCI Express x16 slot
(Also functions as
SDVO/ADD2 Slot)
N/A (2) LP (2.5”), length (6.6”) (2) FH (4.2”), full-length
Max power per slot N/A 35W 75W max if 1 16x slot,
35W each if both PCIe 16 slots
PCI Express x1 slot N/A (1) LP (2.5”), length (6.6”) (1) FH (4.2”), full-length
Max power per slot N/A 10W 10W
External Bays (1) Total (2) Total (4) Total
3.5” N/A (1)
unless used for a secondary
hard drive
(1)
5.25” N/A (1) 8.189” length (2) 8.189” length
(1) 5.71” length
Slimline 128w x 127d x 12.7h mm N/A N/A
Internal 2.5” HDD Bays (1) N/A N/A
Internal 3.5” HDD Bays N/A (1) for primary hard drive
NOTE: Secondary hard drive
can be installed in 3.5”
external bay if not used for
external device.
(2) dedicated for HDDs
NOTE: A third hard drive
can be installed in 3.5”
external bay if not used for
external device.
Hard Drive Controller
(PCI) Supported
Serial ATA
support for SATA 1.5-Gb/s and 3.0-Gb/s hard drives
Hard Drive and Optical
SATA Interfaces
Supported
(1) Serial ATA interface (3) Serial ATA interfaces
(1) Serial ATA for eSATA
(4) Serial ATA interfaces
(1) Serial ATA for eSATA
Host Controller for SATA Advanced Host Controller Interface (AHCI) Revision 1.2. The specification includes a description
of the hardware/software interface between system software and the host controller hardware.
QuickSpecs
HP Compaq dc7900 Business PC
Standard Features and Configurable Components
DA - 13029 Worldwide QuickSpecs — Version 24 — 10/30/2009 Page 13

Ultra-slim Desktop Small Form Factor Convertible Minitower
Storage - Drive Support
USDT SFF CMT
Slimline
Optical
Drives
2.5” Hard
Disk Drive
or Solid
State Drive
(right
angle, no
cable)
Diskette
Drive or
Media Card
Reader
5.25”
Optical
Drives
Hard Disk
Drives
Diskette
Drive or
Media Card
Reader *
5.25”
Optical
Drives
Hard Disk
Drives
Quantity
Supported
11112123
Position
Supported
, ,
†
, ,
Controller SATA SATA Diskette
Controller
or
USB
header on
PCA
SATA SATA Diskette
Controller
or
USB
header on
PCA
SATA SATA
* To have both a diskette drive and a media card reader in the Convertible Minitower, it is necessary to order it with a
diskette drive in position 4 and then purchase a media card reader as an after-market option kit (which contains a 5.25"
bracket) and install it in position 3.
†
Installing a 3.5-inch hard drive in position #2 (a 5.25-inch optical drive bay) requires the optional HP Optical Bay HDD
Mounting Bracket.
QuickSpecs
HP Compaq dc7900 Business PC
Standard Features and Configurable Components
DA - 13029 Worldwide QuickSpecs — Version 24 — 10/30/2009 Page 14

USDT SFF CMT
Hard Drives (SATA) 80 GB Hard Drive (2.5”)
8MB cache, 7200 RPM, 3.0 GB/s, NCQ, Smart IV
X
160 GB Hard Drive (2.5”)
8MB cache, 7200 RPM, 3.0 GB/s, NCQ, Smart IV
X
250 GB Hard Drive (2.5”)
8MB cache, 7200 RPM, 3.0 GB/s, NCQ, Smart IV
X
80 GB Hard Drive
8MB cache, 7,200 RPM, 3.0 GB/s, NCQ, Smart IV
X X
80 GB Hard Drive
16MB cache, 10,000 RPM, 3.0 GB/s, NCQ, Smart III
X X
80 GB Hard Drive (removable)
8MB cache, 7,200 RPM, 3.0 GB/s, NCQ, Smart IV
X X
160 GB Hard Drive
8MB cache, 7,200 RPM, 3.0 GB/s, NCQ, Smart IV
X X
160 GB Hard Drive
16MB cache, 10,000 RPM, 3.0 GB/s, NCQ, Smart III
X X
160 GB Hard Drive (removable)
8MB cache, 7,200 RPM, 3.0 GB/s, NCQ, Smart IV
X X
250 GB Hard Drive
8MB cache, 7,200 RPM, 3.0 GB/s, NCQ, Smart IV
X X
250 GB Hard Drive (removable)
8MB cache, 7,200 RPM, 3.0 GB/s, NCQ, Smart IV
X X
500 GB Hard Drive
16MB cache, 7,200 RPM, 3.0 GB/s, NCQ, Smart IV
X X
Removable Storage –
One or more of the
following depending on
form factor (see Storage
– Drive Support section
above)
Diskette Drives
1.44-MB Diskette Drive X X
5.25” Optical Drives (SATA)
DVD-ROM Drive X X
SuperMulti LightScribe DVD Writer Drive
1,2,3
X X
Slimline Optical Drives (SATA)
DVD-ROM Drive
1
X
SuperMulti LightScribe DVD Writer Drive
1,2,3
X
1
For playing DVDs, Corel WinDVD 8
2
For writing CDs, choice of Sonic/Roxio Easy Media Creator 9 or
Roxio Business Creator 10
3
For writing CDs and DVDs, video editing and authoring DVDs, choice of
Sonic/Roxio Easy Media Creator 9
or
Roxio Business Creator 10
Media Card Reader –
One of the following
HP 22-in-1 Media Card Reader X X
HP 22-in-1 Media Card Reader with 1394 port X X
QuickSpecs
HP Compaq dc7900 Business PC
Standard Features and Configurable Components
DA - 13029 Worldwide QuickSpecs — Version 24 — 10/30/2009 Page 15

Security TPM 1.2 TPM Security Chip * XXX
TPM Pre-Boot Authentication (via BIOS) XXX
Smartcard Pre-boot Authentication (via BIOS) XXX
Stringent Security ** (via BIOS) XXX
SATA port disablement (via BIOS) XXX
Drive Lock XXX
RAID configurations X X
HP ProtectTools Embedded Security Software XXX
Serial, Parallel, USB Enable/Disable (via BIOS) XXX
Optional USB Port Disable at factory (user configurable via BIOS) XXX
Removable Media Write/Boot Control XXX
Power-On Password (via BIOS) XXX
Setup Password (via BIOS) XXX
Solenoid Hood Lock / Sensor X X
HP Security Lock Kit XXX
Support for chassis padlocks and cable lock devices XXX
* TPM module disabled where use is restricted by law; for example, Russia.
** This setting is defaulted to disable, but when enabled, the PW jumper will
not clear the BIOS pre-boot authentication passwords.
NIC Intel 82567LM GbE Network Connection (integrated on system board) XXX
Intel Gigabit CT Desktop NIC * X X
Intel Pro 1000 PT PCIe Gigabit NIC * X X
NOTE: The integrated network connection is required to support the vPro
technology features.
* Available after initial product release; use of this network card disables the
vPro technology features.
Wireless HP 802.11 b/g/n PCIe x1 Wireless card X X
Intel WiFi Link 5100 a/b/g/n (USDT) Wireless NIC X
NOTE: These wireless network solutions disable the vPro technology
features.
Modem Agere 2006 PCI 56K International SoftModem X X
LSI PCIe x1 Hi-Speed 56K International SoftModem X X
Graphics Intel Graphics Media Accelerator 4500 (integrated on chipset) XXX
ATI Radeon 3470 256MB SH PCIe x16 graphics card X X
ATI Radeon HD 2400XT 256MB DH PCIe x16 graphics card X X
ATI Radeon HD 3650 512MB DH PCIe x16 graphics card X
ATI Radeon HD 4550 Dual Head PCIe x16 Graphics Card X X
NVIDIA Quadro NVS 290 256MB DH PCIe x16 graphics card X X
NVIDIA Quadro NVS 295 256MB Graphics Card X X
HP ADD2 SDVO PCIe DVI-D adapter X X
HP DisplayPort to VGA Adapter XXX
QuickSpecs
HP Compaq dc7900 Business PC
Standard Features and Configurable Components
DA - 13029 Worldwide QuickSpecs — Version 24 — 10/30/2009 Page 16

Audio Integrated HD audio with AD1884A codec (all ports are stereo) XXX
Microphone and Headphone front ports XXX
Line-out and Line-In rear ports * XXX
Multistreaming capable * XXX
Internal Speaker (standard) XXX
HP Thin USB Powered Speakers XXX
* Rear audio input ports are re-taskable as Line-in or Microphone-in. External
speakers must be powered externally. Multistreaming can be enabled in the
ADI control panel to allow independent audio streams to be sent to/from the
front and rear jacks. This allows for different audio applications to use
separate audio ports on the system. For example, the front jacks could be
used with a headset for a communications application while the rear jacks
are being used with external speakers and a multimedia application.
Input Devices Keyboard
HP PS/2 Standard Keyboard XXX
HP USB Standard Keyboard XXX
HP USB Smartcard Keyboard XXX
HP USB PS2 Washable Keyboard XXX
Mouse - One of the following
HP PS/2 2-button Optical Scroll Mouse XXX
HP USB 2-button Optical Scroll Mouse XXX
HP USB 2-Button Laser Scroll Mouse XXX
Miscellaneous HP FireWire (IEEE 1394) PCI Card X X
PCI riser card for SFF - adds 2 full-height PCI slots
NOTE: Low profile slots are unusable with riser card installed.
X
Serial port adapter X X
Parallel port adapter X X
eSATA port adapter X X
Tower stand X X
Configure dc7900 CMT in desktop orientation X
Rear Port Control Cover X
QuickSpecs
HP Compaq dc7900 Business PC
Standard Features and Configurable Components
DA - 13029 Worldwide QuickSpecs — Version 24 — 10/30/2009 Page 17

USDT SFF CMT After-Market
Options Part
Number
Communications Wireless
HP Wireless 802.11 b/g/n PCIe x1 X X FH971AA
NICs
Broadcom NetXtreme Gigabit Ethernet Plus PCIe NIC X X FS215AA
Intel Gigabit CT Desktop NIC X X FH969AA
Intel Pro 1000 PT PCIe Gigabit NIC * X X EH352AA
Modem
LSI PCIe x1 Hi-Speed 56K International SoftModem X X FH970AA
HP RJ11 Modem Adapter Kit X X DC131C#xxx
* available after initial product release
NOTE: The use of a PCI Express network card (wired or wireless) will disable
the vPro technology features.
Graphics Single head solutions
ATI Radeon 3470 256MB SH PCIe x16 X X FH972AA
Multi head solutions
ATI Radeon HD 2400XT 256MB DH PCIe x16 X X KD060AA
ATI Radeon HD 3650 512MB DH PCIe x16 X KS505AA
ATI Radeon HD 4550 Dual Head PCIe x16 Graphics Card X X AT042AA
NVIDIA Quadro NVS 290 256MB DH PCIe x16 X X KG748AA
NVIDIA Quadro NVS 295 256MB Graphics Card X X FY943AA
Hard Disk Drives Serial ATA Hard Drives
HP 80-GB SATA (NCQ/Smart IV) 3.0-Gb/s HDD X X PY276AA
HP 160-GB SATA (NCQ/Smart IV) 3.0-Gb/s HDD X X PY277AA
HP 250-GB SATA (NCQ/Smart IV) 3.0-Gb/s HDD X X PY278AA
HP 320-GB SATA (NCQ/Smart IV) 3.0-GB/s HDD X X FH963AA
HP 500-GB SATA (NCQ/Smart IV) 3.0-GB/s HDD X X KW347AA
HP eSATA Adapter X X FH966AA
HP Removable SATA Hard Drive Enclosure (Frame &
Carrier)
X X RY102AA
HP Removable SATA Hard Drive Enclosure (Carrier Only) X X RY103AA
HP Optical Bay HDD Mounting Bracket X NQ099AA
Input/Output Devices HP PS/2 Standard Keyboard XXX DT527A
HP USB Standard Keyboard XXX DT528A
HP USB Gray Keyboard XXX DT529A
HP USB PS2 Washable Keyboard XXX VF097AA#XXX
HP 2.4 GHz Wireless Keyboard and Mouse XXX NB896AA#xxx
HP PS/2 2-Button Optical Scroll Mouse XXX EY703AA
HP USB 2-Button Optical Scroll Mouse XXX DC172B
HP USB 2-Button Laser Mouse XXX GW405AA
QuickSpecs
HP Compaq dc7900 Business PC
After-Market Options (availability may vary by region)
DA - 13029 Worldwide QuickSpecs — Version 24 — 10/30/2009 Page 18

Memory (non-ECC) PC2-6400 (DDR2, 800 MHz) DIMM
HP 1 GB PC2-6400 (DDR2 800 MHz) DIMM X X AH058AA
HP 2 GB PC2-6400 (DDR2 800 MHz) DIMM X X AH060AA
HP 4 GB PC2-6400 (DDR2 800) DIMM X X FH977AA
PC2-6400 (DDR2, 800 MHz) SODIMM
HP 1 GB PC2-6400 (DDR2 800 MHz) SODIMM X GM254AA
HP 2 GB PC2-6400 (DDR2 800 MHz) SODIMM X GV576AA
HP 4 GB PC2-6400 (DDR2 800 MHz) SODIMM X FH978AA
Monitors All HP monitors are supported that accept a graphics output
provided by this PC. The LP3065 monitor can be supported
by installing a graphics card that supports a dual-link DVI-D
output.
Multimedia HP Thin USB Powered Speakers XXX KK912AA
Slimline Optical Drives DVD-ROM Drive
HP Slim 8X SATA DVD-ROM Drive X FH967AA
Combo Drive
HP Slim 24X SATA CD-RW/DVD-ROM Combo Drive X KV842AA
DVD Writer
HP Slim 8X SATA SuperMulti LightScribe Drive X KV843AA
Standard Optical
Drives
DVD-ROM Drive
HP SATA DVD-ROM Drive X X AH047AA
DVD Writer
HP SATA SuperMulti LightScribe DVD Writer Drive X X GF343AA
Removable Storage Diskette and Digital Drives
HP 1.44-MB External USB Diskette Drive XXX DC141B
HP 1.44-MB Standard Internal Diskette Drive X X AH053AA
Multimedia
HP 22-in-1 Media Card Reader X X FX273AA
HP 22-in-1 Media Card Reader with FireWire (IEEE 1394) X X KN518AA
Security Kensington Lock XXX PC766A
HP Business PC Security Lock XXX PV606AA
HP Rear Port Controller Cover (USDT) X GJ121AA
HP 2008 Wall Mount/Security Sleeve (SFF) X GF344AA
HP ProtectTools Version 4.0 (1 User) XXX FH974AA
HP USB Smartcard Keyboard XXX ED707AA
QuickSpecs
HP Compaq dc7900 Business PC
After-Market Options (availability may vary by region)
DA - 13029 Worldwide QuickSpecs — Version 24 — 10/30/2009 Page 19

Software HP Client Configuration Manager, Premium Edition XXX T3488AA
(use T3489AA
for 1000
licenses)
Altiris Client Management Suite Level 1
Includes:
Altiris Deployment Solution
Altiris Inventory Solution
Altiris Application Metering Solution
Altiris Carbon Copy Solution
Altiris Software Delivery Solution
Altiris Application Management Solution
Altiris Patch Management Solution
XXX DR605A
(use DR606A
for 1000+
licenses)
Brackets/Stands HP Compaq Integrated Work Center Stand X GN783AA
HP Tower Stand for USDT X GJ117AA
HP Tower Stand for SFF X GJ118AA
Miscellaneous
Accessories
HP Serial Port adapter kit X X PA716A
HP Parallel Port Adapter X X KD061AA
HP 5.25” Blank Bezel Kit (50 pack) X X DC177B
HP FireWire (IEEE 1394) PCI Card X X PA997A
Graphics – Cables HP DMS59 DVI Dual-head Connector Cable X X DL139A
HP DVI to DVI Cable X X DC198A
HP ADD2 SDVO DVI-D Adapter X X DY674A
HP DisplayPort to VGA Adapter XXX AS615AA
HP DisplayPort To DVI-D Adapter XXX FH973AA
QuickSpecs
HP Compaq dc7900 Business PC
After-Market Options (availability may vary by region)
DA - 13029 Worldwide QuickSpecs — Version 24 — 10/30/2009 Page 20