Information Required by Technical Support |
If you contact Matrox technical support, the following information may be
required to help us provide you with a quick response:
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Matrox product model number, base address mapping, board revision, BIOS
revision. |
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computer model, bus type, processor, memory, motherboard, chipset, and
system BIOS. |
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a list of the other boards and peripherals installed in the system. |
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brand and model of monitor if the problem is video-related. |
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operating system (DOS, OS/2, or Windows NT) type and version. |
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contents of your autoexec.bat and config.sys files. |
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for Windows problems, the contents of win.ini and system.ini files. |
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note which resolution, pixel depth and MGA features were being used when
the problem occured. |
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state the application name and version number. |
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describe the steps known to cause the problem so we can reproduce it. |
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Matrox Product Technical Specifications |
The following information is to help you with hardware installation
problems. Matrox products are memory-mapped. They only use I/O addresses when
running in VGA or VESA modes. These are the standard VGA I/O addresses.
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Matrox on PCI Bus (Millennium, Impression Plus, Impression Lite,
Impression, Ultima Plus, Ultima):
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RAM Address: Auto-configured by system BIOS. The MGA Millennium uses a 16
Kbyte window and an 8 Mbyte window mapped above 1 Mbyte. Other Matrox products
on PCI bus only use the 16 Kbyte window.
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Matrox products on VL, AT and MCA bus (Impression Plus, Impression Lite,
Impression, Ultima Plus, Ultima):
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RAM Address: Requires 16 Kbyte window from 1 of 7 user-configurable base
addresses - AC00, C800, CC00, D000, D400, D800, and DC00. Default is AC00.
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Integrated VGA controller: |
Each Matrox graphics accelerator has an integrated VGA controller used for
booting the computer and running VGA and VESA compatible programs. The Matrox
Millennium is a 32 bit VGA while other MGAs use an 8 bit VGA core. They use the
following addresses:
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IO address: 3B4, 3B5, 3BA, 3C0-3CF, 3D4, 3D5, 3DA, 3DE, 3DF RAM address:
A000-BFFF, ROM address: C000-C7FF, Interrupt: 9
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Note 1: MGA VL bus products operate reliably with a bus frequency less than
or equal to 33 Mhz. Note 2: MGA AT bus products can be set to 8 or 16 bit
operation and should be the same as other adapters with RAM or ROM mapped into
the range from C000-DFFF. Note 3: Do not use the AC00 address running
OS/2 with MGA VL, AT and MCA products. Note 4: The VGA on Ultima and
Ultima Plus for PCI and VL models uses all IO addresses from 3B0 to 3BF which
conflicts with the third parallel port on many systems
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