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HP Notebook PCs - Guide to Using 2010 Business Notebooks with External Displays

HP Notebook PCs offer a variety of combinations allowing multiple displays to be used. This document explains the options for the following notebook PCs.

EliteBook 2540p
EliteBook 2740p
EliteBook 8440p/w
EliteBook 8540p/w
EliteBook 8740w
ProBook 644Xb/645Xb/654Xb/655Xb

Information about connecting to external displays:

  • The EliteBook 2540p, 8440p/w, 8540p/w (with NVIDIA graphics), 8740w (with NVIDIA graphics), ProBook 644Xb/645Xb/654Xb/655Xb can output to a maximum of two displays in clone or extended mode via the built-in VGA and DisplayPort (DP) or via the VGA, DVI, and DP on the applicable docking station. The notebook screen is counted as one display so if it is used, only one external display can be used. If the notebook screen is not used, two external displays can be used.

  • The EliteBook 8540w (with ATI graphics) and the EliteBook 8740w (with ATI graphics) can output up to four external displays and the notebook screen to create a maximum of five displays. Limitations apply based on display connection type, docking, and Dreamcolor option.

  • The EliteBook 2740p can output up to a maximum of two displays in clone or extended mode via the VGA and DP ports on the Ultra-Slim Expansion Base (WA995AA). The notebook screen is counted as one display so if it is used, only one external display can be used. If the notebook screen is not used, two external displays can be used.

The HP USB Graphics Adapter (NL571AA) can be used to connect up to six additional external displays. Please note that the experience in this scenario can be varied, and does not match that of a docking station (auto adjust, discovery, etc).

NL571AA specs are as follows.

  • Video interface: VGA or DVI-I

  • Supported resolutions: Up to 1920 x 1080 (16x9 widescreen), 1680 x 1050 (16x10 widescreen) or 1600 x 1200 (traditional).

For HP LCD monitor information, click here to access the 2010 HP Business LCD Monitor Quick Reference Guide .

NOTE: LCD Monitor native resolution must be less than or equal to the resolution that the notebook can support through its VGA port or DisplayPort or via the DVI-D port on the Docking Station. Otherwise, the image on the monitor will not be optimal.

Display resolution specifications

The following tables show display resolutions specific to each notebook and docking station.

EliteBook 2540p / Docking Station (VU895AA – AMO or VU896AV#XXX - DIB)
Internal display native resolution
12.1-inch diagonal LED-backlit WXGA anti-glare (1280 x 800)
External maximum resolution via VGA on notebook or docking station
2048 x 1536 at 75Hz, and lower resolutions at up to 100Hz
External maximum resolution via DisplayPort on notebook or docking station
2560 x 1600, 30-bit color depth at 60Hz, and full HD (1920 x 1080) monitors, 24-bit color depth at 120Hz
External maximum resolution via DVI port on docking station only
No DVI port
EliteBook 2740p / Ultra-Slim Expansion Base (WA995AA)
Internal display native resolution
12.1-inch diagonal LED-backlit WXGA ultra wide viewing angle anti-glare (1280 x 800)
Digitizer only or Digitizer and Multi-touch
Optional Outdoor View*
External maximum resolution via VGA on notebook or docking station
2048 x 1536 at 75 Hz, and lower resolutions at up to 100 Hz
External maximum resolution via DisplayPort on notebook or docking station
No DisplayPort on notebook
2560 x 1600, 30-bit color depth at 60Hz, and full HD (1920 x 1080) monitors, 24-bit color depth at 120Hz
External maximum resolution via DVI port on docking station only
No DVI port
EliteBook 8440p/w / Docking Stations (see Docking Station compatibility )
Internal display native resolution
14.0-inch diagonal 16:9 LED-backlit HD anti-glare (1366 x 768 resolution)
14.0-inch diagonal 16:9 LED-backlit HD+ anti-glare (1600 x 900 resolution)
External maximum resolution via VGA on notebook or docking station
2048 x 1536 at 75 Hz, and lower resolutions at up to 100 Hz
External maximum resolution via DisplayPort on notebook or docking station
2560 x 1600, 30-bit color depth at 60 Hz, and full HD (1920 x 1080) monitors, 24-bit color depth at 120 Hz
External maximum resolution via DVI port on docking station only
DVI-D (single link) video signal available through DVI port in optional HP Docking Station (sold separately).
Supports resolutions up to 1600 x 1200 at both full and reduced blanking, and 1920 x 1200 at reduced blanking
EliteBook 8540p/w / Docking Stations (see Docking Station compatibility )
Internal display native resolution
15.6-inch diagonal 16:9 LED-backlit HD anti-glare (1366 x 768 resolution)
15.6-inch diagonal 16:9 LED-backlit HD+ anti-glare (1600 x 900 resolution)
15.6-inch diagonal 16:9 LED-backlit FHD anti-glare (1920 x 1080 resolution)
External maximum resolution via VGA on notebook or docking station
2048 x 1536 at 75 Hz, and lower resolutions at up to 100 Hz
External maximum resolution via DisplayPort on notebook or docking station
2560 x 1600, 30-bit color depth at 60 Hz, and full HD (1920 x 1080) monitors, 24-bit color depth at 120 Hz
External maximum resolution via DVI port on docking station only
DVI-D (single link) video signal available through DVI port in optional HP Docking Station (sold separately).
Supports resolutions up to 1600 x 1200 at both full and reduced blanking, and 1920 x 1200 at reduced blanking.
EliteBook 8740w / Docking Stations (see Docking Station compatibility )
Internal display native resolution
17.0-inch diagonal LED-backlit WXGA+ anti-glare (1440 x 900 resolution)
17.0-inch diagonal LED-backlit WSXGA+ wide-viewing angle anti-glare (1680 x 1050 resolution)
17.0-inch diagonal LED-backlit WUXGA wide-viewing angle anti-glare (1920x1200 resolution)
External maximum resolution via VGA on notebook or docking station
2048 x 1536 at 75 Hz, and lower resolutions at up to 100 Hz
External maximum resolution via DisplayPort on notebook or docking station
2560 x 1600, 30-bit color depth at 60 Hz, and full HD (1920 x 1080) monitors, 24-bit color depth at 120 Hz
External maximum resolution via DVI port on docking station only
DVI-D (single link) video signal available through DVI port in optional HP Docking Station (sold separately).
Supports resolutions up to 1600 x 1200 at both full and reduced blanking, and 1920 x 1200 at reduced blanking.
ProBook 644Xb/645Xb/654Xb/655Xb / Docking Stations (see Docking Station compatibility )
Internal display native resolution
HP ProBook 6440b/6450b:
14.0-inch diagonal LED-backlit HD anti-glare (1366 x 768 resolution)
14.0-inch diagonal LED-backlit HD BrightView (1366 x 768 resolution)
14.0-inch diagonal LED-backlit HD+ anti-glare (1600 x 900 resolution)
HP ProBook 6540b/6550b: 15.6-inch diagonal LED-backlit HD anti-glare (1366 x 768 resolution) 15.6-inch diagonal LED-backlit HD+ WVA anti-glare (1600 x 900 resolution)
External maximum resolution via VGA on notebook or docking station
2048 x 1536 at 75 Hz, and lower resolutions at up to 100 Hz
External maximum resolution via DisplayPort on notebook or docking station
2560 x 1600, 30-bit color depth at 60 Hz, and full HD (1920 x 1080) monitors, 24-bit color depth at 120 Hz
External maximum resolution via DVI port on docking station only
DVI-D (single link) video signal available through DVI port in optional HP Docking Station (sold separately).
Supports resolutions up to 1600 x 1200 at both full and reduced blanking, and 1920 x 1200 at reduced blanking.
NOTE: Resolutions are dependent upon monitor capability, resolution and color depth settings.

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Docking station compatibility

The following matrix identifies which docking stations are compatible with different models of HP EliteBooks and HP ProBooks.

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Docking station components

The following pictures identify the components of different docking stations.

HP 2540 Series Docking Station (VU895AA) Rear/Right-Side Components
HP 2740 Ultra-Slim Expansion Base (WA995AA) Rear/Right-Side Components
HP 90W Docking Station Rear Components
HP 230W Docking Station Rear Components
HP120W Advanced Docking Station Rear Components
HP 230W Advanced Docking Station Rear Components

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Types of adapters

The DVI-D port on the HP 90W Docking Station (VB041AA), HP 230W Docking Station (VB043AA), HP 120W Advanced Docking Station (NZ222AA) or HP 230W Advanced Docking Station (NZ223AA) is a single link DVI-D port even though it looks like a dual link DVI-D port. As such, it will only support resolutions up to 1920 x 1200 at reduced blanking. In order to use the 30” LP3065 or the ZR30w monitor, one needs to use the HP DisplayPort to Dual Link DVI-D Adapter (NR078AA) via the DP on the notebook (if there is one) or on the docking station.

Figure 1: DVI-I ports

Figure 2: DVI-D ports

The following table identifies different types of adapters.

DisplayPort to HDMI Adapter (BP937AA)
HP DisplayPort to DVI-D Adapter (FH973AA)
HP DisplayPort to VGA Adapter (AS615AA)
HP DisplayPort to Dual Link DVI-D Adapter (NR078AA)
HP USB Graphics Adapter (NL571AA)
HP DisplayPort Cable Kit (VN567AA)

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