HP Vectra VT 6/xxx HP Vectra XU 6/xxx and VT 6/xxx PCs - Technical Reference M - Page 25

Interface Boards And Mass-storage, Drives

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3 INTERFACE BOARDS AND MASS-STORAGE DRIVES This chapter describes the video, disk and network devices which are supplied with the PC. These include the Matrox MGA Millennium video controller board, and the HP PCI Integrated 10/100 VG Interface. It also includes the hard disk drives, flexible disk drives and CD-ROM drives that are supplied with the PC. Matrox MGA Millennium Video Controller Board All models are supplied with a Matrox MGA Millennium PCI video controller on a board fitted in a PCI accessory slot. This controller has an MGA-2064W processor, 2 MB video memory installed on the board, a VESA feature connector, and a socket for either a video memory upgrade module or an MPEG upgrade module. The possible upgrades for this socket are the following: Add on module 2 MB video memory module 6 MB video memory module MPEG module HP Part Number D3557A not available not available Matrox Part Number MGA-MIL/MOD2 MGA-MIL/MOD6 MGA-MIL/Media-XL The video RAM (also known as window RAM, or WRAM) is a local block of RAM for holding two major data structures: the double buffer (to hold one frame steady on the screen whilst the next one is being processed), and the Z-buffer (for storing depth information for each pixel). It is dual ported, so that it can be inputting and outputting simultaneously. The controller uses the PCI bus for data transfers between the processor and the video subsystem, and has the following features: • 100% compatible with IBM® VGA display standard • 64-bit video memory access • Hardware acceleration of graphical user interface (GUI) operations • Support for up to 8 MB Video RAM (Window RAM) at 60 ns • Graphics resolutions of up to 1600 5 1200 • Integrated 24-bit, 175 MHz RAMDAC • Pixel clock maximum frequency of 135 MHz • Green PC power saving features • Standard and Enhanced Video Graphics Array (VGA) modes • DDC 2B compliant. Drivers are not integrated into any of the operating systems, so HP-provided drivers must be installed. AVAILABLE VIDEO RESOLUTIONS If you attempt to set the resolution or number of colors higher than is supported by the installed video memory, the screen refresh rate is lowered automatically, and image flicker becomes more noticeable. If the resolution/ refresh-rate combination is set higher than the display can support, you risk damaging the display.

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3
INTERFACE BOARDS AND MASS-STORAGE
DRIVES
This chapter describes the video, disk and network devices which are supplied with the PC. These
include the Matrox MGA Millennium video
controller board, and the HP PCI Integrated 10/100 VG Interface. It also includes the hard disk
drives, flexible disk drives and CD-ROM drives that are supplied with the PC.
Matrox MGA Millennium Video Controller Board
All models are supplied with a Matrox MGA Millennium PCI video controller on a board fitted in a
PCI accessory slot. This controller has an MGA-2064W processor, 2 MB video memory installed
on the board, a VESA feature connector, and a socket for either a video memory upgrade module
or an MPEG upgrade module. The possible upgrades for this socket are the following:
Add on module
HP Part Number
Matrox Part Number
2 MB video memory module
D3557A
MGA-MIL/MOD2
6 MB video memory module
not available
MGA-MIL/MOD6
MPEG module
not available
MGA-MIL/Media-XL
The video RAM (also known as window RAM, or WRAM) is a local block of RAM for holding two
major data structures: the double buffer (to hold one frame steady on the screen whilst the next
one is being processed), and the Z-buffer (for storing depth information for each pixel). It is dual
ported, so that it can be inputting and outputting simultaneously.
The controller uses the PCI bus for data transfers between the processor and the video
subsystem, and has the following features:
•
100% compatible with IBM
® VGA display standard
•
64-bit video memory access
•
Hardware acceleration of graphical user interface (GUI) operations
•
Support for up to 8 MB Video RAM (Window RAM) at 60 ns
•
Graphics resolutions of up to 1600 5 1200
•
Integrated 24-bit, 175 MHz RAMDAC
•
Pixel clock maximum frequency of 135 MHz
•
Green PC power saving features
•
Standard and Enhanced Video Graphics Array (VGA) modes
•
DDC 2B compliant.
Drivers are not integrated into any of the operating systems, so HP-provided drivers must be
installed.
AVAILABLE VIDEO RESOLUTIONS
If you attempt to set the resolution or number of colors higher than is supported by the installed
video memory, the screen refresh rate is lowered automatically, and image flicker becomes more
noticeable. If the resolution/ refresh-rate combination is set higher than the display can support,
you risk damaging the display.