Microsoft KB Archive/142642

= Windows NT 4.0 Readme.wri File (Part 3 of 5) =

Article ID: 142642

Article Last Modified on 10/31/2006

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APPLIES TO


 * Microsoft Windows NT Server 4.0 Standard Edition
 * Microsoft Windows NT Workstation 4.0 Developer Edition

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This article was previously published under Q142642



This article contains a copy of the information in the Readme.wri file included in Windows NT version 4.0. Setup copies this file to the System32 folder.

Hardware Notes
NOTE: Be sure to check that all equipment (including video cards, networking cards, monitors, CPUs, hard drives, and CD-ROM drives) is listed on the Windows NT version 4.0 Hardware Compatibility List, included with this product.

If you are using a system or equipment that is not included on the hardware compatibility list, and experience problems, please file a report by using the \Probrep.txt file on the Windows NT version 4.0 compact disc.  is either X86, MIPS, ALPHA, or PPC, depending on your computer's platform. The Probrep.txt file is also installed in the %systemroot%\system32 folder.

ATAPI and PCI
ATAPI.SYS now controls all IDE devices in a PCI machine. If you have a computer that uses IDE hard disks, has a PCI bus, and are upgrading from Windows NT version 3.51 to Windows NT version 4.0, you may receive a message when the system is booting stating that a driver has failed to start. In Event Viewer, you will see that the ATDISK driver failed to start. To disable the driver and associated box, double-click the Devices icon in Control Panel, and then disable the ATDISK driver.

Caching Disk Controllers and Drives
Windows NT supports caching disk controllers and drives only if one of the following is true:


 * The controller has a driver that specifically supports caching. (Several of these exist: DPT and IBM SCSI Caching Adapter.)
 * Write-through is active (i.e., write caching is disabled) by setting it either manually or by default when the computer starts.
 * The entire cache option is off, by setting it either manually or by default when the computer starts.

Using a caching controller or drive in other situations risks loss of data if the computer is rebooted or if a power failure occurs before the cache has flushed itself. You can minimize risk by waiting at least one minute (less if you know the maximum time the cache waits before flushing itself) after all system activity stops before rebooting. The disk activity light is a good indicator of how write caching is being done on your system. This applies to the initial Windows NT installation as well as to shutdown. Note that unexpected power failure at any time can potentially corrupt data on the disk, possibly to the extent that the disk becomes unreadable. Making the delay time that write data is cached before being flushed to disk as small as possible reduces this risk.

Certain applications are data-sensitive and require that write-through be active. Examples of this are SQL Server-based applications and NTFS partitions.

CD-ROM Changers

 * Some IDE/ATAPI CD-ROM Changers may take an excessive amount of time to read all of their compact discs. This may be especially apparent while using Windows NT Explorer, or using an Open dialog box (accessed from the File menu) from certain applications. Some ATAPI CD-ROM changers cannot report their media change status properly so the system software must read the discs directly to verify media changes.
 * While attempting to access a compact disc in an IDE/ATAPI CD-ROM Changer, the system may indicate the device is not ready. If this occurs, press the Retry button several times. The compact disc should become available after several retries.
 * Accessing multiple compact discs simultaneously in a CD-Changer device is not recommended. The application may hang or you may experience performance loss accessing data.
 * Attaching CD-Changers, CD-ROMs, and Removable Media SCSI devices requires system reboot for these devices to be detected by system.

Removable Media
IDE removable media cannot be ejected by using some external utilities. Re- inserting or swapping the media can cause system to crash.

Eject all removable media using only the Explorer. Ejecting media by other means, such as eject switch on the drive, can cause data inconsistency when viewing media information.

Data on write protected NTFS media cannot be seen.

Compaq LS-120
When formatting a 1.44 MB floppy disk in a Compaq LS-120 drive, the progress indicator in the dialog box lags behind the formatting activity. After a minute or so, the progress indicator advances quickly and the format completes successfully.

Creative Labs Sound Blaster on RISC Platforms
If you are running Windows NT on a RISC platform with a Creative Labs Sound Blaster adapter card, you may experience problems (such as loss of sound) if you click Settings ,and then click Cancel in the property dialog box of the sound card. To avoid this, click OK instead of Cancel.

To restore sound:


 * 1) Double-click the Multimedia icon in Control Panel
 * 2) Click the Devices tab.
 * 3) Click Audio Devices, and select Audio for Creative Labs Sound Blaster.
 * 4) Click Remove and then shut down and restart the computer.
 * 5) Double-click the Multimedia icon in Control Panel.
 * 6) Click the Devices tab and then click Add
 * 7) Select the Creative Labs Sound Blaster driver, verify the settings, and then click OK.
 * 8) Restart your system.

Device Driver Load Order
Third-party modifications to the load order of device drivers are not preserved on a system upgrade. If a device (such as an optical disk) is not operating correctly after a system upgrade, you may be required to reinstall the driver.

DPT Configuration Tool for MIPS and PowerPC Machines
On DPT's PCI bus adapters, the DPT Configuration tool is built into the adapter's firmware and on x86 processor-based computers, is accessible by pressing CTRL-D during boot. This toolcontrols the adapter's I/O address, parity, PCI transfer/burst, SCSI ID, termination, termination power, and several other adapter options.

To configure DPT's PCI bus adapters when installed in either a MIPS or a PowerPC RISC processor-based computer, DPT has placed these functions in special versions of their Storage Manager tool software. To obtain this software, it may be downloaded through DPT's BBS number or their Internet FTP Site.

BBS procedure:


 * 1) Dial in at (407) 831-6432 or (407) 830-1070
 * 2) Select: (F)ile directories
 * 3) Select file to download:

MIPSMGR.ZIP for MIPS

MGRNTPPC.zip for PowerPC

FTP server procedure:


 * 1) Go to: FTP.DPT.COM
 * 2) Then go to:

PUB/TECHSUP/WINDOWS_NT/MIPS for MIPS

PUB/TECHSUP/WINDOWS_NT/PPC for PowerPC
 * 1) Downloads the file:

MIPSMGR.zip for MIPS

NTMGRPPC.zip for PowerPC

If there are any problems downloading these tools, please contact DPT at (407)830-5522.

El Torito (no emulation) Bootable CD-ROM Format
If your computer's BIOS does not support the El Torito (no emulation) bootable CD-ROM format, you might get an error when you boot up your machine with the Windows NT compact disc inserted in the CD drive. To work around this problem, remove the CD-ROM from the drive and reboot the machine.

ESDI Disk Drives with More Than 1024 Cylinders
In some cases, on disk drives with more than 1024 cylinders, Windows NT installation proceeds normally until the first startup from the hard drive where Windows NT is installed. The Windows NT Boot Loader will load various files and then produce a Fatal System Error: 0x0000006b with the message that Phase 1 Process Initialization Failed. Following this message will be some type of hexadecimal dump, and the system will be locked up. If you experience this difficulty, the following information can help.

Microsoft has tested the ESDI controllers listed in README.WRI by using a hard drive with a capacity exceeding 516 MB (MB=1,048,576 bytes) formatted. The MS-DOS limit of 1024 cylinders creates a situation where special BIOS mapping on the controller is used to change the geometry of the drive. ESDI drives can be prepared with various values of sectors per track (spt) such as 53 or 63 spt geometry during a low-level format, as shown in the following example:


 * 1024 cylinders x 15 heads x 53 spt x 512 bytes per sector = 398 MB formatted capacity

-or-
 * 1024 cylinders x 15 heads x 63 spt x 512 bytes per sector = 472 MB formatted capacity

Using 63 spt yields 74 MB more space. Windows NT is perfectly compatible with either geometry and, depending on the drive or controller, can access the cylinders beyond 1024. This space can be partitioned and formatted (but not accessed) by MS-DOS. However, some controllers can successfully remap the remaining cylinders beyond 1024 so that either MS-DOS or Windows NT can use the entire capacity. For example:

  1632 cylinders x 15 heads x 53 spt x 512 bytes per sector = 634 MB   formatted capacity

External Cache Option
If you have a system without any external cache on the system board but the option is turned on in CMOS, Windows NT may not restart when you click Start, click Shutdown, click Restart the computer, and then click Yes. If this problem occurs, turn off the external cache option in your CMOS configuration program.

IDE Devices in Control Panel SCSI Devices
On PCI bus computers and computers with ATAPI (IDE) CD-ROM, tape, or removable disk drives, you see either some or all of the IDE devices on your computer in the SCSI Devices option in Control Panel.

Intel EtherExpress 16 LAN Adapter
In some cases, selecting Early in the I/O Channel Ready box prevents the network adapter card from functioning correctly. The card must then be reconfigured with the Intel SoftSet tool. If you are unsure whether your system can take advantage of this network setting, consult your hardware vendor.

Interrupt Conflicts
A common problem in a computer with several supported devices is conflicting interrupts, I/O ports, or memory usage. Where possible, such cases are identified in this document. However, if one of the supported devices does not seem to work, it might be due to the particular hardware configuration. For more specific information, see your hardware manual or contact your system manufacturer.

Installing Mwave Drivers for the IBM Thinkpad
The Microsoft Windows NT version 4.0 compact disc contains Mwave audio and FAX modem drivers for Mwave-based IBM Thinkpad systems. However, the Windows NT version 4.0 Setup program does not install the drivers by default. To install the Mwave drivers on your Mwave-based Thinkpad system, see the procedures that follow.

This version of the Mwave driver supports audio playback. There are known problems with recording audio data. Recording controls are not functional using Volume Control (accessed by clicking Start, pointing to Programs, Accessories, and then Multimedia) and recording using either the built-in or external microphone does not operate properly.

NOTE: Please consult the release notes (README.TXT) for Mwave audio and FAX modem drivers before installation. This file is located on the Windows NT version 4.0 compact disc in the \DRVLIB\MWAVE\THINKPAD\DISK1 directory. It is important that you print and read this information before you install the Mwave drivers.

To install Mwave driver for audio and FAX modem:


 * 1) Insert the Windows NT compact disc in the CD-ROM drive.
 * 2) Click Start and then click Run.
 * 3) Type :\DRVLIB\MWAVE\THINKPAD\DISK1\SETUP and then click OK.
 * 4) Follow the on-screen instructions.
 * 5) When prompted, click Restart Now to reboot your computer.

After restarting Windows NT, install the MIDI wave-table data to enable Mwave to play MIDI files:


 * 1) Click Start and then click Run.
 * 2) Type :\DRVLIB\MWAVE\MIDISAMP\SETUP and then click OK.
 * 3) Follow the on-screen instructions.
 * 4) When prompted, click Restart Now to reboot your computer.
 * 5) After restarting Windows NT, follow the instructions in the README.TXT file to configure your Mwave modem. If you do not configure your modem using these instructions, it is likely the modem will not function properly under Windows NT.

Installing IBM Thinkpad Utilities for Windows NT
In addition to the Windows NT 4.0 compact disc, you may need the IBM Thinkpad Utilities diskette for Windows NT. If you want to view or change your hardware configuration settings, you can obtain the IBM Thinkpad Utilities diskette from one of the following locations. These changes are referred to in README.TXT in the \DRVLIB\MWAVE\THINKPAD\DISK1 directory.

On the Internet:

http://www.pc.ibm.com/support/tps/winnt.html

ftp://ftp.pc.ibm.com/pub/mobiles

On CompuServe: GO Thinkpad

On PC Co. BBS: 919-517-0001, area 37

To install the IBM Thinkpad Utilities for Windows NT, follow the installation instructions described in the README.TXT file included on the IBM Thinkpad Utilities diskette.

PCMCIA Cards
PCMCIA cards are supported in Windows NT version 4.0. For a list of supported cards and a list of compatible notebook computers, see the Hardware Compatibility List.

When using PCMCIA devices, such as modems and network cards on a computer running Windows NT Workstation, power management features on the computer system should be turned off. Consult the manufacturer's system manual for procedures to disable power management.

PCMCIA SCSI Cards
On PCMCIA SCSI cards at least one of the devices on the SCSI bus needs to supply termination power for proper operation.

PCMCIA Notes
If the PCMCIA controller was not present when you installed Windows NT, use the Devices icon in Control Panel to change the startup type to Manual. Double-click Devices, and select Pcmcia. Click Startup and then click Manual.

PCMCIA Atdisk and drive letters
In some instances the driver letter for the PCMCIA harddisk can become C:. If this is causing you problems, change the drive letter assignment using Disk Administrator.

Interrupt Conflicts
If you have an IRQ conflict, the information that follows includes a few workarounds.

NOTE: PCMCIA net device resources can be changed by using the PC Card or Network icon in Control Panel.

For modems, try disabling one of the COM ports in you systems BIOS. This will make PCMCIA enable the PCMCIA modem at a different IRQ.

If you have Windows NT installed on a laptop and need to install the Elnk3 or Ne2000 driver and your system does not have a CD-ROM drive or is not connected to a network, you can access the drivers by copying the Elnk3.sys or Ne2000.sys driver to the root of C:. When prompted for the path to the driver, type in "C:\".

PCI Notebook Computers and PCMCIA Hard Disks
If you have a notebook computer that uses a PCI bus (Compaq Elite 5x00 or HP Omnibook 5000), you will need to disable Atapi.sys to run PCMCIA hard disks in your system. This can be done by changing the boot setting for ATAPI in the Devices icon in Control Panel and restarting the system. To allow IDE CD-ROM drives to work properly, enable Atapi.sys. To allow the PCMCIA hard disks to work properly, disable Atapi.sys.

Plug and Play ISA Device Installation and PNPISA.SYS
Installation of Plug and Play ISA (PnP ISA) devices under Windows NT version 4.0 requires an enabler driver that recognizes how to locate and configure those devices. The driver, PNPISA.SYS, is in the \Drvlib folder on the Windows NT version 4.0 compact disc. For information about how to install the enabler, see "Installing PNPISA.SYS if not Enabled" later in this document.

The enabler does not contain complete Windows 95 Plug and Play support. For example, the enabler does not dynamically allocate resources for PnP ISA devices. It does, however, enable a user interface (UI) that allows you to manually select system resources that do not conflict with other devices in the system.

PnP ISA Enabler, Present on Shipped Computers
Some computer manufacturers who provide PnP ISA devices with their products enable PNPISA.SYS at the factory. In this case, the devices that came installed in the computer may be configured by the manufacturer. If new PnP ISA devices are added later, you can configure the new devices when the New Hardware Found dialog box appears.

Installing PNPISA.SYS if not Enabled

 * 1) Insert the Windows NT version 4.0 compact disc into the CD-ROM drive.
 * 2) In the Windows NT Explorer, switch to the CD-ROM drive.
 * 3) Go to the \DRVLIB\PNPISA\ directory (where is either "X86", "MIPS", "ALPHA", or "PPC", depending on your computer's platform).
 * 4) Right-click PNPISA.INF, and click Install. If Hide file extensions for known file types (accessed by clicking Options on the View menu) is selected, the filename is displayed as PNPISA.
 * 5) When prompted, restart your computer.

Disabling PNPISA.SYS

 * 1) Double-click the Devices icon in Control Panel.
 * 2) Select PnP ISA Enabler Driver and click Startup.
 * 3) Click Disabled and then click OK.

Installing PnP ISA Devices
When the system boots with the enabler driver (PNPISA.SYS) installed, the enabler locates all PnP ISA devices in the computer and enables those devices for which you have selected resources. Any new devices are recognized, so that drivers for the devices can be installed when you log onto the computer as a user with administrative privilege. At logon, Windows NT displays a New Hardware Found dialog box for each new device it locates.

NOTE: Some PnP ISA cards contain multiple functions. In this case, a dialog box will be displayed for each function on the card.

If Windows NT does not have a driver that is an exact match for a device, a dialog box containing the following options is displayed:

 Windows NT default driver:

If Windows NT has a driver that is compatible with your device, this selection will be enabled. If you do not have a vendor-supplied driver for the device, and this option is available, you should select it. Driver from disk provided by hardware manufacturer:

If you have a disk that contains a driver for your device, select this option. Insert the disk in the drive and a list of the drivers on the disk is displayed. Select the model that matches your device to install it. In general, the driver disk you supply must contain support for Windows NT (a disk for Windows 95 only will not work). However, in the case of PnP ISA modems, Windows 95 driver disks can be used. However, certain functions, such as VoiceView, will not work.  Do not install a driver (Windows NT will not prompt you again):

Select this option only if you do not have a driver for the device. This keeps Windows NT from displaying the New Hardware Found dialog box for the device in the future.

  ************************************************************************ WARNING: If you select this option, you will not be able to install the device at a later time, unless you perform the following procedure:

1. Shut down Windows NT. 2. Remove the card from the computer. 3. Restart Windows NT. Windows NT detects that the card has been removed from the machine, and removes the entry for the card from the registry. 4. Shut down Windows NT. 5. Reinsert the card. 6. Restart the computer. When you log on, the New Hardware Found dialog box is displayed for the device. ************************************************************************                    Select from a list of alternate drivers:

If you do not have an INF file for the device, and if the Windows NT default driver option is not enabled, you can use this option to attempt to locate a compatible device in the list of devices supported by Windows NT. After you click Select from a list of alternate drivers, a list of device types is displayed. Select the type that corresponds to your device, and then click OK.

If you are not sure about the device type, click Other devices to display a list of all supported devices.

The Select From A List Of Alternate Drivers option is particularly useful for PnP ISA modems. Even if you do not have an INF that matches your particular modem, you can select a generic modem (for example "Standard 28800 bps Modem"), and you will be able to use the device.

Configuring PnP ISA Devices
After selecting the device that you want to install (or after automatic selection, if Windows NT has an exact match), you may be presented with additional dialog boxes requesting configuration information for the device. The following examples illustrate the type of user input typically required.


 * PnP ISA modems and PnP ISA serial port devices:

Both of these devices are configured using the Advanced Port Settings dialog box. Use this dialog box to select the interrupt request and input/output range resources for the underlying serial port, and configure the COM port number and FIFO settings. After the devices are installed, Advanced Port Settings can be accessed using the Ports icon in Control Panel. Select the COM port, click Settings, and then click Advanced.
 * PnP ISA multimedia cards:

For these devices, each different multimedia device can present a different dialog box. For example, the Creative Labs SoundBlaster16 driver displays a property page with only a General tab. (Other multimedia device property pages could have additional tabs on them.) When you click Settings, you can select an interrupt, input/output ranges, and direct memory access (DMA) channels. To access the property page for any multimedia device, double-click the Multimedia icon in Control Panel. Click the Devices tab, and then select the PnP ISA device in the Multimedia devices box. Click Properties and then click Settings.

For more information about installing a Creative Labs SoundBlaster16 Plug and Play driver, see the DRVLIB\AUDIO\SBPNP\README.TXT file.

Removing PnP ISA Devices
To remove a PnP ISA device, you must use one of the Control Panel icons. For example, to remove a PnP ISA modem or serial port, use the Ports icon in Control Panel. To remove a multimedia PnP ISA device, use the Multimedia icon in Control Panel.

PnP ISA SCSI
A Plug and Play SCSI adapter that has been installed during Windows NT Setup will be redetected after Plug and Play ISA enabler is installed on the system. When the New Hardware Found dialog box is displayed, you are prompted to either keep the existing driver or install a new driver by specifying a driver location. Click Yes to keep the existing driver.

All Plug and Play ISA SCSI adapters should be set to run in Legacy mode. For example, Adaptec AHA152x ISA Plug and Play adapters can be set to Legacy mode by performing the following:


 * 1) Select a resource setting that is not already in use using DIP switches on the adapter. Do not select "inactive".
 * 2) Press Ctrl-A to start the SCSI Setup Utility after the banner appears.
 * 3) Turn off PnP mode.

For more information about the Plug and Play ISA enabler, see "Plug and Play ISA Device Installation and PNPISA.SYS" earlier in this document.

ROM Shadowing on Multiprocessor Systems
If you encounter persistent installation problems on multiprocessor systems, try installing with ROM shadowing disabled.

Running Windows NT version 4.0 on PCI Bus Systems
To run Windows NT version 4.0 on a PCI bus system, you may need to enable the interrupts via the CMOS screen or by switching jumpers on the motherboard. Refer to system documentation to determine how to enable interrupts for your system.

Windows NT SCSI Driver Changes
With the release of Windows NT version 4.0, the drivers for certain SCSI adapters have been moved from the base operating system to the Windows NT Driver Library (\DRVLIB) included on the Windows NT version 4.0 compact disc. Check the following list to determine if any of your adapters are affected by this change. If your computer has an adapter that appears on this list, you must create a driver disk before installing Windows NT version 4.0. Use this disk to install the appropriate driver(s) during Setup, or keep the disk handy and install the driver by using Control Panel once Setup is complete.

The following drivers have been moved:

  always.sys dtc329x.sys t128.syst13b.sys tmv1.sys ultra124.sys wd33c93.sys

The following adapters are affected by this change:

<pre class="fixed_text">  SCSI ADAPTERS:    Always IN-2000

Data Technology Corp. 3290 Maynard 16-bit SCSI Adapter MediaVision Pro Audio Spectrum-16 Trantor T-128 Trantor T-130B

DISK CONTROLLERS: UltraStor 124f EISA Disk Array Controller

Please see the Windows NT Hardware Compatibility List for additional information on these storage adapters.

To create a driver disk for drivers that have been moved to the Driver

Library

 * 1) Create a blank formatted 3.5-inch disk.
 * 2) Copy all files from the following directory to the blank disk:

\drvlib\storage\retired\<CPU_TYPE>

where CPU_TYPE is X86 if you are using a machine with an x86-based processor; MIPS if your computer uses a MIPS RISC processor; or ALPHA if your computer uses a Digital Alpha processor. For enabler drivers, copy the files from the \Drvlib\storage\fenb directory.
 * 1) Write "Drivers disk" on the disk.

To install drivers from the driver disk during Windows NT version 4.0 Setup

 * 1) Start Windows NT Setup. During the course of Setup, a message appears stating "Setup has recognized the following mass storage devices in your computer."
 * 2) When prompted, press S to skip detection, then press S again to display a list of supported SCSI host adapters.
 * 3) Select Other from the bottom of the list.
 * 4) Insert the disk labled "Drivers Disk" when you are prompted to do so, and select your host adapter from this list.

Windows NT will now recognize any devices attached to this adapter. Repeat this step for each host adapter not already recognized by Windows NT Setup.

To install drivers when Setup recognizes one of the supported SCSI host

adapters without making the devices attached to it available for use

 * 1) Restart Windows NT Setup.
 * 2) When Windows NT Setup displays the message "Setup is inspecting your computer's hardware configuration...," press F6. This prevents Windows NT Setup from performing disk controller detection and allows you to install the driver from the "Drivers Disk" you created. Note that all SCSI adapters will have to be installed manually.
 * 3) When Windows NT Setup displays the message "Setup could not determine the type of one or more mass storage devices installed in your system, or you have chosen to manually specify an adapter," press S to display a list of supported SCSI host adapters.
 * 4) Select Other from the bottom of the list.
 * 5) Insert the "Drivers Disk" when prompted to do so, and select your host adapter from this list. Note that in some cases, Windows NT Setup will repeatedly prompt you to swap disks.

Windows NT will now recognize any devices attached to this adapter. Repeat this step for each host adapter not already recognized by Windows NT Setup.

To install drivers from your driver disk after running Windows NT version

4.0 Setup

 * 1) After installing the properly configured adapter in your machine, start Windows NT version 4.0 as you normally would.
 * 2) Click Start, point to Settings, click Control Panel, and then double- click SCSI Adapters.
 * 3) Click the Drivers tab, and then click Add.
 * 4) Click Have Disk, insert your "Drivers Disk" into Drive A: and then click OK.
 * 5) Select the driver from the list and click OK. Click Continue to load the driver.
 * 6) Click Restart the computer to shutdown and restart your computer.

SCSI Device Interrogation Tool (SCSItool)
SCSItool detects SCSI adapters and the devices connected to the adapters. SCSItool helps Microsoft Answer Point and Enterprise Customer Unit (Product Support) personnel identify installed SCSI devices for diagnostic purposes when a system does not start or becomes unstable. SCSItool must be run using a SCSItool boot floppy disk.

The following adapters are supported:

<pre class="fixed_text">  Adaptec PCI, ISA, and EISA BusLogic PCI, EISA, and ISA

System Requirements
12MB RAM

486 processor

VGA monitor

3.5 inch 1.44 MB drive

To create a SCSItool disk
Run Makedisk.bat from the \support\scsitool folder on the Windows NT Workstation or Windows NT Server compact disc.

Makedisk.bat creates a bootable floppy disk that you can use to start your computer and automatically run the diagnostic tool.

To start SCSItool
Insert the SCSItool disk in drive A and then restart the system.

SCSItool will do the following:
 * Create a 4MB RAM drive
 * Detect the RAM drive letter
 * Copy Scsizip.exe to the RAM drive
 * Self-extract Scsizip.exe.
 * Start Scsi.exe
 * Log adapters and devices data into a log file called Scsi.txt Video Notes

Cirrus Logic
Some computers with the Cirrus 543x video chipset may experience problems when attempting to restart. When restart is selected, the system may freeze when attempting to reset the Cirrus video. This is not detrimental to the system. Simply restart the computer using the reset button or power off the computer.

Direct Draw
The version of Direct Draw provided with this release of Windows NT is fully compatible with the version released on Windows 95 in the DirectX 2 release. The only difference between these two versions is that the Windows NT version does not support ModeX low resolution modes.

Low resolution modes
The Tseng ET6000 supports display modes which are lower resolution than 640x480. No other driver currently supports low resolution modes and this version of Direct Draw does not support ModeX modes. Applications that require low resolution modes will not run on non-ET6000 systems.

DXSetup
The dxsetup program used by DirectX 1 games to install the DirectX components on Windows 95 does not work properly on Windows NT. Applications that use this setup program will not install correctly on Windows NT. The dxsetup program supplied with the DirectX 2 SDK will work correctly on Windows NT.

Video cards with hardware acceleration
The following video cards have drivers which contain DirectDraw support in this release. Systems with video cards other than the ones on this list are still able to run DirectDraw applications but no hardware acceleration is provided. <pre class="fixed_text">  x86 ATI Mach64, Mach32 S3 Trio64V+, Trio64V2 S3 868, 968 Matrox Millennium Tseng ET6000 Mips S3 868, 968, Trio64V+ (some Mips machines either does not support these     cards, or will not DirectDraw accelerated)

PPC S3 868, 968, Trio64V+ Matrox Millennium (the Millennium doesn't work in some IBM PPC machines) Alpha Matrox Millennium

S3
Some computers using the S3 chipsets will not display 1152x864 resolutions. These machines do not support the S3 1152 BIOS Standard. Set the resolution to another mode.

Due to differences in BIOS mode tables, some S3 cards will not correctly set the proper refresh rate. Contact your video card manufacturer for an updated driver.

S15
The S15 video card does not display colors correctly on the IBM P70, the IBM 21P, and the Iiyama monitors. There are two models of the P70. The P70 which displays colors incorrectly has a switch on the back labeled "normal" and "adjust". The switch is typically in the "normal" position. Switching it to the "adjust" position will resolve the color problem. The color problem does not appear in the model of the P70 that does not have the normal/adjust switch.

There is no known workaround for the IBM 21P and Iiyama monitors.

Matrox
Video cards with the Matrox Atlas chipset may show text corruption during interlaced modes.

Compaq Q-Vision 2000 and Matrox Impression Lite Rev E boards are affected. Set the refresh rate in Control Panel, Display to a non-interlaced setting. Some systems with a Matrox Impression Plus 4MB video card in high resolution modes may show a cursor 'ghost' (a copy of the mouse pointer an inch away from the usual pointer).

The Matrox driver conflicts with some Token ring cards in Compaq computers. The conflict causes the network card to fail at startup. Contact Compaq for an updated driver.

VDM (Virtual DOS Machine)
Some CGA (color graphics adapter) and EGA (enhanced graphics adapter) MS- DOS applications may experience palette corruption after several successive screen switches.

Weitek
Video cards with the Weitek P9100 video chipset may display offset or changing colors. These color palette changes occur when the video color depth is set to 256 colors (8 bit). To resolve this, set color depth higher than 256 colors (16, 24 or 32 bit).

Additional query words: read-me

Keywords: KB142642

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