Maximum Vertical
Refresh Rate
85 Hz at up to 1920x1440, 75 Hz at 2048x1536. Varies with mode and
configuration. See table below.
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
Support
Microsoft DirectX® 10, OpenGL® 1.5 (OpenGL® 2.0 available in a driver
update)
Resolutions Supported
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)
Resolution
Analog Connection
Digital Connection
640x480
85 60
800x600
85 60
1024x768
85 60
1280x720
85 60
1280x1024
85 60
1440x900
75 60
1600x1200
85 60
1680x1050
75 60
1920x1080
85
60-R
1920x1200
85
60-R
1920x1440
85
N/A
2048x1536
75
N/A
2560x1600
N/A
60
*
* Only supported when using a DisplayPort connection
NOTE:
60-R denotes reduced blanking timings are used on single-link DVI connections and may be used with other digital
connections
HP ADD2 SDVO PCIe
x16 DVI-D Adapter
Models
HP ADD2 SDVO DVI-D Out Adapter
Form Factor
Low-profile card
DVI-D Connector
Digital connection only
Dual Head Support
Yes, when used with the integrated VGA connector
Display Devices
Supported
HP L1740
HP L1940T
HP L2045W
HP LP1965
NOTE:
These graphics adapters offer optimal performance with any display that meets applicable
VESA standards.
Color Depth
All modes support 8-bpp, 16-bpp, and 24-bpp color depths
Host Interface
Connector
Mechanically compliant with PCI-E standard
Complies with the Intel ADD2 and Intel Serial Digital Video Output
(SDVO) specifications
Dot Clock
165 MHz maximum
Display Modes
Supports display modes that require up to 165-MHz bandwidth on the
link, as shown in the following table.
QuickSpecs
HP Compaq dc7900 Business PC
Technical Specifications - Graphics
DA - 13029 Worldwide QuickSpecs — Version 24 — 10/30/2009
Page 38
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