HP QUICKSPECS DC7900 - Manual (Page 38)

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