Shared System Memory:
Shared System Memory:Shared System Memory:
Shared System Memory:
Memory dynamically allocated for Graphics use
HW Video Decode
HW Video DecodeHW Video Decode
HW Video Decode
Hardware Accelerated decode for MPEG2 encrypted video; support for PAVP Lite
(default) and Heavy ( or Paranoid) modes
Maximum Color Depth
Maximum Color DepthMaximum Color Depth
Maximum Color Depth
32 bits/pixel
Maximum Vertical
Maximum VerticalMaximum Vertical
Maximum Vertical
Refresh Rate
Refresh RateRefresh Rate
Refresh Rate
85 Hz at up to 1920x1440, 75 Hz at 2048x1536. Varies with mode and
configuration. See table below.
Multi-display Support
Multi-display SupportMulti-display Support
Multi-display Support
Dual monitor support facilitated via one VGA port and one DisplayPort integrated on
the back plane of the system board and presented as part of the rear I/O set of
interfaces. DVI supported via optional HP DisplayPort to DVI-D adapter.
Graphics/Video API
Graphics/Video APIGraphics/Video API
Graphics/Video API
Support
SupportSupport
Support
Microsoft DirectX® 10, OpenGL® 1.5 (OpenGL® 2.0 available in a driver update)
Resolutions Supported
Resolutions SupportedResolutions Supported
Resolutions Supported
NOTE:
NOTE:NOTE:
NOTE:
Other resolutions may be available but are not recommended as the may not have been tested and qualified by HP.
Maximum Refresh Rate (Hz)
Maximum Refresh Rate (Hz)Maximum Refresh Rate (Hz)
Maximum Refresh Rate (Hz)
Resolution
ResolutionResolution
Resolution
Analog Connection
Analog ConnectionAnalog Connection
Analog Connection
Digital Connection
Digital ConnectionDigital Connection
Digital Connection
640x480
640x480640x480
640x480
85
8585
85 60
6060
60
800x600
800x600800x600
800x600
85
8585
85 60
6060
60
1024x768
1024x7681024x768
1024x768
85
8585
85 60
6060
60
1280x720
1280x7201280x720
1280x720
85
8585
85 60
6060
60
1280x1024
1280x10241280x1024
1280x1024
85
8585
85 60
6060
60
1440x900
1440x9001440x900
1440x900
75
7575
75 60
6060
60
1600x1200
1600x12001600x1200
1600x1200
85
8585
85 60
6060
60
1680x1050
1680x10501680x1050
1680x1050
75
7575
75 60
6060
60
1920x1080
1920x10801920x1080
1920x1080
85
8585
85
60-R
60-R60-R
60-R
1920x1200
1920x12001920x1200
1920x1200
85
8585
85
60-R
60-R60-R
60-R
1920x1440
1920x14401920x1440
1920x1440
85
8585
85
N/A
N/AN/A
N/A
2048x1536
2048x15362048x1536
2048x1536
75
7575
75
N/A
N/AN/A
N/A
2560x1600
2560x16002560x1600
2560x1600
N/A
N/AN/A
N/A
60
6060
60
*
* Only supported when using a DisplayPort connection
NOTE:
NOTE:NOTE:
NOTE:
60-R denotes reduced blanking timings are used on single-link DVI connections and may be used with other digital
connections
ATI Radeon HD 2400XT
ATI Radeon HD 2400XTATI Radeon HD 2400XT
ATI Radeon HD 2400XT
(256MB DH) PCIe
(256MB DH) PCIe(256MB DH) PCIe
(256MB DH) PCIe
Graphics Card
Graphics CardGraphics Card
Graphics Card
Bus type
Bus typeBus type
Bus type
PCI Express (x16 lanes)
Maximum vertical refresh rate
Maximum vertical refresh rateMaximum vertical refresh rate
Maximum vertical refresh rate
85 Hz
Display support
Display supportDisplay support
Display support
Integrated 400 MHz RAMDAC
Display max resolution
Display max resolutionDisplay max resolution
Display max resolution
1900 x 1200 digital, 2048 x 1536 analog
ATI Radeon HD 2400XT (256MB DH) PCIe Graphics Card display resolutions and refresh rates
ATI Radeon HD 2400XT (256MB DH) PCIe Graphics Card display resolutions and refresh ratesATI Radeon HD 2400XT (256MB DH) PCIe Graphics Card display resolutions and refresh rates
ATI Radeon HD 2400XT (256MB DH) PCIe Graphics Card display resolutions and refresh rates
NOTE:
NOTE:NOTE:
NOTE:
Other resolutions may be available but are not recommended as the may not have been tested and qualified by HP
QuickSpecs
HP Compaq dc7900 Business PC
HP Compaq dc7900 Business PCHP Compaq dc7900 Business PC
HP Compaq dc7900 Business PC
Technical Specifications - Graphics
DA - 13029 North America — Version 15 — March 30, 2009
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