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Inside Multimedia 1995 April
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ati
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mach64
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readme
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1994-08-26
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***********************************************************************
Windows NT Device Drivers Version 1.39 August18, 1994
***********************************************************************
READ THIS FILE COMPLETELY BEFORE ATTEMPTING TO USE THIS PRODUCT !
*****************************
Contents
1.0 Introduction
1.1 Supported Resolutions
2.0 Installation Notes for Windows NT
2.1 Uninstalling the Windows NT drivers
3.0 Known Problems
4.0 Reporting Problems
*****************************
1.0 Introduction
The Graphics device drivers supplied here are for the Microsoft Retail
Release of the Windows NT operating system.
The drivers will substitute 640x480 by 256 colors if the mode selected is
NOT supported by the mach64 graphics hardware.
*****************************
1.1 Supported Resolutions.
256 colors 65000 colors 16.7 million TRUE color
Resolutions 8 bpp 16 bpp 24 bpp 32bpp *
640 x 480 2/4MB 2/4MB 2/4MB 2/4MB
800 x 600 2/4MB 2/4MB 4MB 2/4MB
1024 x 768 2/4MB 2/4MB 4MB 4MB
1280 x 1024 2/4MB 4MB 4MB N/A
2/4MB - Supported on 2 or 4 Megabyte mach64 VLB and PCI products
4MB - ONLY supported on 4 Megabyte mach64 VLB and PCI products
N/A - Not Supported
The current release of the Windows NT driver supports the following
resolutions on ISA mach64 products:
256 colors 65000 colors 16.7 million TRUE color
Resolutions 8 bpp 16 bpp 24 bpp 32bpp *
640x480 2/4MB 2/4MB 2/4MB 2/4MB
800x600 2/4MB 2/4MB 4MB N/A
1024x768 2/4MB 2/4MB 4MB N/A
1280x1024 N/A N/A N/A N/A
2/4MB - Supported on 2 or 4 Megabyte mach64 ISA products
4MB - Only supported on 4 Megabyte mach64 ISA products
N/A - Not Supported
* Note: TRUE color, provides 16.7 million colors using a 32 bpp data
format. TRUE color provides higher performance but uses more
graphic memory.
** Note: Not all color depths are supported at all refresh rates.
****************************
2.0 Installation Notes for Windows NT
This driver package containing:
- ATI.SYS (ATI Graphics miniport driver)
- ATI.DLL (ATI Graphics display driver)
- OEMSETUP.INF (setup files used by Windows NT Setup program)
- TXTSETUP.OEM
- ATI_VID
- This README file
Windows NT drivers are included on Disk #3 of this package. They are
located in the \NT sub-directory.
Procedure:
1. Run the Windows NT Setup program located in the Program Manager, Main
group.
2. Select Change System settings, from the Options pulldown menu.
3. Select Other, from the display options.
4. NT will prompt you for the correct path, enter A:\NT, where A: is
the drive containing the mach64 Disk #3.
5. A list of all Graphics Accelerator drivers will appears, select
the resolution and color depth desired.
6. Restart Windows NT. Windows NT will start up using the mach64 drivers.
Note: If you select a color depth or resolution, not supported by your
card, NT will substitute 640x480, 256 color for the display.
2.1 Uninstalling the Windows NT drivers
How to uninstall the mach64 Windows Device Driver. There are TWO ways to
do this without re-installing Windows NT.
ONE method is:
CD \winnt\system32\drivers
ren ATI.sys ATI.ati
Windows NT looks for ATI.SYS drivers at boot time, if it cannot find
it, it cannot use it.
SECOND method is:
While running Windows NT, execute the Win NT Setup program.
Select a NON mach64 driver (try VGA compatible)
*****************************
3.0 Known Problems
This driver does not currently support 1280x1024 on ISA mach64 product.
This driver does not currently support 24 bpp at resolutions greater than
640x480 on ISA mach64 product.
Some applications do not handle 24bpp and 32bpp properly resulting in the
colors not looking right.
What to do if ACCELERATOR not found message appears:
Is there another adapter card in the system that CONFLICTS with I/O
locations in the 350-35F hex range? Relocate the I/O to 300 to 31F range.
Attempting to run the mach64 Install program under NT will report
"Mach64 Adapter not detected.". The install program must be run from DOS.
1280x1024 is not currently supported on non-linear aperture configurations
24 BPP is not currently supported on non-linear aperture configurations at
resolutions greater than 640x480.
*****************************
4.0 Reporting Problems
If you experience any difficulties, open the file REPORT.TXT and complete
the Problem Report form.