Ziatech Corporation ZT 6631 Instructions for use

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CompactPCI
®
ÛZIATECH
Hardware User Manual
ZT 6631
ZT 6631
CompactPCI®Super VGA Interface
CompactPCI®Super VGA Interface
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CONTENTS
MANUAL ORGANIZATION.....................................................................................................................5
1. INTRODUCTION .................................................................................................................................7
FEATURES.................................................................................................................................7
2. GETTING STARTED...........................................................................................................................8
UNPACKING...............................................................................................................................8
SYSTEM REQUIREMENTS........................................................................................................8
SYSTEM RECOMMENDATIONS................................................................................................9
ANALOG VIDEO INTERFACE........................................................................................9
FEATURE CONNECTOR...............................................................................................9
HARDWARE INSTALLATION ...................................................................................................10
JUMPERS....................................................................................................................10
SOFTWARE INSTALLATION....................................................................................................10
DOS DRIVERS AND UTILITIES ...................................................................................11
WINDOWS DRIVERS AND UTILITIES .........................................................................11
3. FUNCTIONAL BLOCKS....................................................................................................................12
CPU INTERFACE.....................................................................................................................12
VGA CONTROLLER.................................................................................................................13
VIDEO MEMORY......................................................................................................................13
OUTPUT CONNECTORS .........................................................................................................14
OPTIONAL FEATURE CONNECTOR...........................................................................14
VIDEO OUTPUT CONNECTOR ...................................................................................14
4. SOFTWARE......................................................................................................................................15
VIDEO BIOS.............................................................................................................................15
DRIVER AND UTILITY INSTALLATION....................................................................................15
5. UTILITY SOFTWARE........................................................................................................................16
CLMODE ..................................................................................................................................16
USING CLMODE'S MENU-DRIVEN INTERFACE.........................................................16
CHOOSING THE MONITOR BRAND/MODEL..............................................................17
RETRIEVING THE CURRENT VGA CONTROLLER STATUS......................................19
EXITING THE CLMODE...............................................................................................19
USING CLMODE'S COMMAND LINE OPTIONS ..........................................................20
TSRFONT DRIVER...................................................................................................................22
6. DISPLAY DRIVERS ..........................................................................................................................23
7. AUTODESK - ADI 4.2 DISPLAY DRIVERS.......................................................................................24
AUTODESK - ADI 4.2 FEATURES............................................................................................25
AUTODESK - ADI 4.2 REQUIREMENTS...................................................................................25
AUTODESK - ADI 4.2 INSTALLATION......................................................................................25
TO CONFIGURE AUTOCAD 12 ...................................................................................26
TO CONFIGURE AUTOCAD 11/386.............................................................................26
TURBODLDCLASSIC
CONFIGURATION.....................................................................26
VERIFYING YOUR TURBODLDCLASSIC INSTALLATION.......................................................31
RECONFIGURING TURBODLDCLASSIC.................................................................................31
AUTOCAD RELEASE 12..............................................................................................31
AUTOCAD RELEASE 11..............................................................................................32
CONFIGURING AN AUTOCAD 11 ENVIRONMENT .................................................................32
CONFIGURING AUTOSHADE..................................................................................................33
CONFIGURING 3D STUDIO RELEASE 1.X AND 2.X................................................................34
CONFIGURING 3D STUDIO V3.X.............................................................................................35
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Contents
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CONFIGURING AVE RENDER.................................................................................................36
AVE RENDER FIRST TIME CONFIGURATION............................................................36
AVE RENDER RECONFIGURATION ...........................................................................37
CHANGING COLORS...............................................................................................................38
TURBODLDCLASSIC COMMANDS..........................................................................................40
MEMORY USAGE AND LISTS..................................................................................................45
HOW MUCH MEMORY? ..............................................................................................45
KEEPING THE DISPLAY LIST SMALL.........................................................................45
READ THE AUTOCAD MANUALS................................................................................46
TIPS AND TRICKS.......................................................................................................46
UPGRADING FROM OLDER PANACEA DLD DRIVERS..............................................46
MANEUVERING THROUGH AUTOCAD ......................................................................46
COMMAND SUMMARY................................................................................................49
8. LOTUS 1-2-3 DISPLAY DRIVERS.....................................................................................................50
LOTUS 1-2-3 V2.X....................................................................................................................50
LOTUS 1-2-3 V3.X....................................................................................................................51
9. MICROSOFT WORD DISPLAY DRIVERS.........................................................................................52
INSTALLING WORD DISPLAY DRIVERS.................................................................................52
10. WORDPERFECT DISPLAY DRIVERS ............................................................................................53
WORDPERFECT 6.0................................................................................................................53
WORDPERFECT 5.1................................................................................................................53
INSTALLING WORDPERFECT 5.1 TEXT DRIVER.......................................................53
INSTALLING WORDPERFECT 5.1 GRAPHICS DRIVER .............................................54
11. WORDSTAR DISPLAY DRIVERS...................................................................................................55
12. MICROSOFT WINDOWS 3.1...........................................................................................................56
WINDOWS 3.1 INSTALLATION................................................................................................56
USING INSTALL...........................................................................................................56
WINMODE................................................................................................................................57
USING WINMODE........................................................................................................58
RECONFIGURING WINDOWS 3.1 ...........................................................................................60
POWER MANAGEMENT SCREEN SAVER..............................................................................61
SPECIAL CONSIDERATIONS......................................................................................62
USING THE SCREEN SAVER......................................................................................62
THE ENERGY STAR PROGRAM.................................................................................63
VESA VBE/PM .............................................................................................................64
A. SPECIFICATIONS............................................................................................................................65
ELECTRICAL SPECIFICATIONS..............................................................................................65
ENVIRONMENTAL SPECIFICATIONS .....................................................................................65
MECHANICAL SPECIFICATIONS.............................................................................................65
BOARD DIMENSIONS AND WEIGHT ..........................................................................65
CONNECTORS............................................................................................................66
B. VIDEO MODES.................................................................................................................................70
STANDARD MODES.................................................................................................................70
EXTENDED MODES.................................................................................................................72
C. AGENCY APPROVALS....................................................................................................................76
CE CERTIFICATION.................................................................................................................76
D. CUSTOMER SUPPORT....................................................................................................................77
TECHNICAL/SALES ASSISTANCE...........................................................................................77
RELIABILITY.............................................................................................................................77
RETURNING FOR SERVICE....................................................................................................77
ZIATECH WARRANTY..............................................................................................................78
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Contents
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TRADEMARKS.........................................................................................................................78
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MANUAL ORGANIZATION
This manual describes the operation and use of the ZT 6631 CompactPCI®Super VGA
Interface.
Chapter 1, "Introduction," offers an introduction to the ZT 6631 CompactPCI Super
VGA Interface. It includes a product definition and a listing of product features.
Chapter 2, "Getting Started," summarizes the information you need to get your
ZT 6631 operational. This includes system requirements, recommendations, and
hardware/software installation. You should read this chapter in its entirety before you
use the adapter.
Chapter 3, "Functional Blocks," presents a functional block diagram and a detailed
description of each block of the ZT 6631.
Chapter 4, "Software," provides information about the video BIOS and installation
instructions for the drivers and utilities included with the ZT 6631.
Chapter 5, "Utility Software," provides detailed instructions for using the CLMode and
TSRFONT utilities included with the ZT 6631.
Chapter 6, "Display Drivers," introduces the Autodesk - ADI 4.2, Lotus 123 v2.x, Lotus
123 v3.x, Microsoft Word (DOS), WordPerfect 5.1, 6.0, and WordStar display drivers
included with the ZT 6631.
Chapter 7, "AutoDesk - ADI 4.2 Display Drivers," provides detailed instructions for
installing and configuring the Autodesk - ADI 4.2 TurboDLD Classic display list driver
included with the ZT 6631.
Chapter 8, "Lotus 1-2-3 Display Drivers," provides detailed instructions for installing
the separate display drivers for Lotus 1-2-3 versions 2.x and 3.x included with the
ZT 6631.
Chapter 9, "Microsoft Word Display Drivers," provides detailed instructions for
installing the high resolution Microsoft Word 5.0 display driver included with the
ZT 6631.
Chapter 10, "WordPerfect Display Drivers," provides detailed instructions for
installing the WordPerfect 5.0 text driver and the WordPerfect 6.0 graphics driver
included with the ZT 6631.
Chapter 11, "WordStar Display Drivers," provides detailed instructions for installing
the WordStar high resolution text driver included with the ZT 6631.
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Manual Organization
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Chapter 12, "Microsoft Windows 3.1," includes Windows 3.1 driver installation,
reconfiguring Windows 3.1, and Display Power Manager for Windows 3.1, a mechanism
to control the amount of power used by a computer's monitor.
Appendix A, "Specifications," contains the electrical, mechanical, and environmental
specifications for the ZT 6631.
Appendix B, "Video Modes," provides a guide to the modes available with the ZT 6631
to help you choose a monitor compatible with your application.
Appendix C, "Agency Approvals," presents agency approval and certification
information for the ZT 6631 CompactPCI Super VGA Interface.
Appendix D, "Customer Support," offers technical support information and instructions
for returning the ZT 6631 if service is necessary.
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1. INTRODUCTION
The ZT 6631 is a Super VGA PCI interface for the ZT 6500 Single Board Computer with
Pentium®processor. The ZT 6631 utilizes the Peripheral Component Interconnect (PCI)
bus to give exceptional video performance. The PCI bus supports 32 bits of data and
runs at speeds up to 33 MHz giving it a theoretical bandwidth of 132 Mbytes/s.
The ZT 6631 is based on a 64 bit GUI VGA controller which incorporates a Bit Block
Transfer (BitBLT) engine and a 24-bit true-color DAC. The ZT 6631 can support display
resolutions up to 1280 x 1024 and color modes with up to 16.8 million colors. The
ZT 6631 can be ordered with up to 4 Mbytes of video DRAM allowing it to support
display resolutions up to 1280 x 1024 x 64K colors.
FEATURES
•IBM VGA compatible
•32-bit, 33 MHz high performance PCI bus interface
•VGA and VESA®compatible BIOS
•Hardware BitBLT for Microsoft Windows™ and other GUIs
•Supports up to 4 Mbytes of video memory - 2 Mbytes standard
•24-bit true-color DAC supports up to 16.8 million colors
•Optional Feature connector
•Multimedia support - overlay, color keying, Genlock
•1280 x 1024 x 64K colors, interlaced
•1024 x 768 x 64K colors, non-interlaced
•800 x 600 x 16M colors, non-interlaced
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2. GETTING STARTED
This chapter summarizes the steps required to get the ZT 6631 running. Read this
chapter in its entirety before you use the board.
UNPACKING
Please check the shipping carton for damage. If the shipping carton and contents are
damaged, notify the carrier and Ziatech for an insurance settlement. Retain the shipping
carton and packing material for inspection by the carrier. Save the anti-static bag for
storing or returning the ZT 6631.
Do not return any product to Ziatech without a Return Material Authorization (RMA)
Number. See Appendix D, "Customer Support", for an explanation of the procedure for
obtaining an RMA number from Ziatech.
Caution: Like all equipment utilizing MOS devices, the ZT 6631 must
be protected from static discharge. Never remove any of the socketed
parts except at a static-free workstation. Use the anti-static bag shipped
with the ZT 6631 to handle the board.
SYSTEM REQUIREMENTS
The ZT 6631 Super VGA CompactPCI™ Board is designed to work with the ZT 6500
Single Board Computer with Pentium®processor or other CPUs that adhere to the
CompactPCI specification.
The ZT 6631 requires +5 VDC ± 5% @ 0.840 A maximum and 0.640 A typical. The
ambient temperature must be maintained between 0º and +65º Celsius to avoid
improper operation and possible damage. The relative humidity should be less than
95%, non-condensing.
The I/O and memory map for the ZT 6631 varies according to the video mode. For the
safest operation, allowing all modes to be used, I/O ports 100h through 104h, 46E8h,
and 3B0h through 3DFh, as well as memory addresses A0000h through BFFFFh,
should be reserved. The C0000h through C7FFFh range should also be reserved for
the video BIOS.
If linear addressing is used, the 16 Mbyte range from 41000000h to 41FFFFFFh should
be reserved (1 Gbyte + 16 Mbyte to 1 Gbyte + 32 Mbyte). For proper operation of the
ZT 6631 in a Ziatech DOS system, be sure to use Ziatech Industrial BIOS Version 4.3
or later.
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2. Getting Started
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SYSTEM RECOMMENDATIONS
Connecting to the analog CRT interface and the optional Feature connector are
discussed in the following topics.
Analog Video Interface
The ZT 6631 must be used with an analog monitor. If your monitor is capable of both
digital and analog modes, be sure it is set to analog.
Ziatech has tested the ZT 6631 video board with the NEC Multi-Sync (VGA compatible)
family of monitors, the Amdek 310A monochrome monitor, the IBM PS/2®monitor, the
Smartron SC-431 VGA monitor, and the Mitsubishi HL7955 high resolution, multiscan,
19-inch VGA monitor. We recommend that you use one of these displays with the
ZT 6631, although any IBM compatible display should work.
Discussion of monitor timing specifications for supporting various display modes is
provided in Appendix B, "Video Modes."
The ZT 6631 can be used in a wide variety of video applications. There are several
considerations, however, that you must take into account when setting up a video
system to ensure the best quality display. Such factors as environment, noise from
surrounding equipment, video mode, distance from video source, and cabling all come
into play.
The analog video signals are comprised of a horizontal and vertical sync and three color
signals (red, green, and blue). The signals are driven by a RAMDAC which is used to
convert the digital video data to analog signals. The RAMDAC's analog outputs have an
impedance of 75 ohms. Ideally, the connecting cable to this output should have an
impedance of 75 ohms. Flat cable, which is often more convenient to use, has an
impedance of approximately 100 ohms.
A flat cable connection does cause some mismatch but does not noticeably degrade the
quality of the video display over medium length runs. Ziatech has successfully run
analog video over 15 feet in graphics mode with standard 28 gauge unshielded flat
cable with no noticeable degradation to the display. The preferred method, however, is
to switch from flat cable to 75 ohm cable and install it as close to the output connector
as possible.
Feature Connector
The ZT 6631 has a Feature connector that can be used for video overlay applications or
to drive flat panel displays that use a Feature connector interface (such as Planar
EL640.480-A). The Feature connector uses a 26-pin, double row, 0.050 inch spaced
connector. The connector is located above the VGA connector.
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2. Getting Started
 10
The Feature connector signals come directly from the VGA controller and consist of the
same signals that are fed to the RAMDAC for producing the analog display. This data is
fed at the pixel clock rate of the VGA controller. Depending on the graphics mode used,
this can range from 12 to 28 MHz for standard VGA modes and up to 108 MHz for
higher resolution SVGA modes. The Feature connector's useable upper limit is
approximately 40 MHz, which corresponds to a maximum resolution of 800 x 600.
Because the Feature data can be at such a high clock rate, you must be careful when
cabling to the connector. As with any high speed data cable, pay careful attention to
noise reduction. Standard 28 gauge unshielded flat cable will work fine for short
distances but at longer lengths noise will begin to degrade the system and cause pixel
streaking. Shielded cable can be used for applications that require longer distances.
HARDWARE INSTALLATION
The ZT 6631 is designed to plug into a CompactPCI card cage. Steps for installing the
ZT 6631 board are as follows:
1. Turn off the power to the CompactPCI card cage.
2. Place the ZT 6631 into the card cage.
3. Push down on the ZT 6631 until the connectors seat.
4. Connect the monitor to the 15-pin D VGA connector found on the ZT 6631.
5. Power up the system.
Jumpers
Since the ZT 6631 uses the PCI bus, which has been designed to support automatic
configuration, there are no jumper options for the board.
SOFTWARE INSTALLATION
The standard VGA modes work fine for most applications; however, you may install
additional drivers and utilities to increase the performance and resolution of specific
software packages such as Microsoft Windows®3.x and IBM OS/2™.
Several disks containing drivers and utilities are included with the ZT 6631. Installation
programs are provided on each disk to facilitate the easy installation of these drivers
and utilities. The installation programs are self contained and guide the user through the
installation procedure.
It is important to note that some display drivers need to have the associated vendor's
application program already installed on the system prior to loading the ZT 6631 display
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2. Getting Started
 11
drivers. In other cases, the loading of the display driver may be an integral part of the
vendor's product installation process.
DOS Drivers and Utilities
Run the installation utility for the "DOS Drivers and Utilities disk (disk 1)" by first
inserting the disk into the A: drive and then typing:
A:[Enter]
INSTALL[Enter]
Follow the instructions on the screen to install the listed display drivers. You may press
[Esc] at any time to abort the installation process and go back to DOS. Selected drivers
are simply copied to the specified disk and directory. See Chapter 4, "Software," for
additional installation details.
Windows Drivers and Utilities
To run the installation program, start Windows 3.1. Insert the disk labeled "Windows 3.1
Display Drivers and Utilities" into your floppy disk drive. From the Windows Program
Manager, select Run from the File menu. Type the letter of the floppy drive that the
driver disk is in, followed by the word install . For instance, if the driver disk is in drive A:,
type:
A:\INSTALL.EXE
Click on the OK button. Follow the on-screen directions to complete the installation. See
Chapter 4, "Software," for additional installation details.
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3. FUNCTIONAL BLOCKS
The following section gives a detailed description of the hardware components found on
the ZT 6631. A block diagram of the ZT 6631 is shown below.
Interface
Super VGA Controller
Video Memory
(2-4 Mbyte)
Feature
Connector
Interface
Video
Output
ZT 6631
CompactPCI
®
Functional Block Diagram
CPU INTERFACE
The ZT 6631 connects to the host CPU through a CompactPCI card cage. The interface
consists of a 32-bit data/address bus and various control signals for PCI transfers.
The ZT 6631 supports bus speeds up to 33 MHz, giving a theoretical bandwidth of
132 Mbytes per second. The PCI bus allows the ZT 6631 to support the most
demanding graphic applications while not removing bandwidth from the backplane bus.
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3. Functional Blocks
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The connector pinout adheres to the CompactPCI standard. For more information on
the CompactPCI standard contact Ziatech at http://www.ziatech.com.
VGA CONTROLLER
The ZT 6631 is based on the Cirrus Logic 5434 VGA controller. This controller is a
highly integrated 64-bit GUI engine, optimized for handling graphic-intensive
environments such as Windows and OS2. The controller uses a 64-bit data path to the
video memory, allowing it to surpass many VRAM based controllers in performance. In
addition, the 5434 contains several other performance enhancers such as a BitBLT
accelerator, linear addressing, hardware cursor, color expansion and memory mapped
I/O.
The 5434 is hardware register compatible with the IBM VGA standard and can support
resolutions up to 1280 x 1024. The 5434 contains an integrated 24-bit RAMDAC,
allowing the display of 16.8 million colors.
The 5434 supports the use of an on-board EEPROM to save monitor setting. This
allows the user to set up the ZT 6631 for the best refresh rates and video modes for a
particular monitor. The utility CLMODE.EXE supplied on the DOS drivers and utilities
disk can be used to save these settings to EEPROM. See Chapter 5 for more
information on using the CLMODE.EXE utility.
Please note that once these settings are saved to EEPROM, the ZT 6631 always
powers up using these modes and refresh rates. Make sure to reset the ZT 6631 to the
default values (all modes using 60 Hz refresh rates) before switching to a different
monitor that might not be able to handle the previous modes and refresh rates.
VIDEO MEMORY
The ZT 6631 can be ordered with up to 4 Mbytes of high speed 80 ns fast page mode
DRAM, allowing it to support high resolution color graphics modes such as 1280 x 1024
x 64K colors. The memory is organized as eight 256K x 16-bit DRAMs. The Cirrus Logic
5434 controls accesses to the display memory and arbitrates between the display
refresh requirements and CPU accesses. The address space occupied by the video
memory depends on the video mode selected. The "Display Memory Address Map"
table summarizes the address space for various video modes.
In order to allow for all possible modes of operation, memory address space from
A0000 to C7FFFh should be reserved for the display memory and video BIOS. If certain
video modes, such as monochrome text, are not used, it is possible to use the memory
address space corresponding to the unused mode.
The Cirrus Logic drivers for Windows (supplied on the Drivers and Utilities disks) use
linear addressing to increase performance. Linear addressing allows the controller to
see a contiguous area of memory instead of 64 K pages as with the standard VGA
implementation. The ZT 6631's linear addressing region is mapped in the upper
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3. Functional Blocks
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memory space at 41000000h to 41FFFFFFh (1 Gbyte + 16 Mbytes to 1 Gbyte +
32 Mbytes). Be sure to reserve this memory space for the ZT 6631 when using these
drivers.
Appendix B, "Video Modes," contains specifications on the various video modes
supported by the 5434 and the memory requirements for each mode.
Display Memory Address Map
MEMORY MAP
Video Mode A0000- B0000- B8000- Upper Memory
AFFFFh B7FFFh BFFFFh 1GB + 16MB to
1GB + 32MB
Color Text Modes X
Mono Text Modes X
VGA Graphics X
Extended VGA Graphics X X X X
OUTPUT CONNECTORS
The ZT 6631 features two output connectors:
•Optional Feature connector
•Video Output connector
Optional Feature Connector
A Feature Connector (J5) is available for video overlay applications or for driving flat
panel displays that use a Feature connector interface. The Feature connector uses a
26-pin, double row, 0.050 inch spaced header and is located on the ZT 6631 front
panel.
See Appendix A, "Specifications," for detailed pinouts of all of the connectors and a list
of connector and cable suppliers.
Video Output Connector
The ZT 6631 contains a standard 15-pin D VGA connector (J4), located on the ZT 6631
front panel. See Appendix A, "Specifications," for detailed pinouts of all of the
connectors and a list of connector and cable suppliers.
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 15
4. SOFTWARE
Software for the ZT 6631 consists of the video BIOS, utilities for performing various
video control functions, and drivers for specific applications. This chapter provides
information about the video BIOS and installation instructions for the drivers and utilities.
The following chapters provide detailed instructions for using the various drivers and
utilities included with the ZT 6631. Because the drivers and utilities are continually
updated and added to, be sure to read the README.DOC file on your disks for the
latest information and instructions.
VIDEO BIOS
The video BIOS provides for low-level control of the VGA controller. It is used to
interpret higher-level commands and transform them into register-level instructions that
the VGA controller can understand. The ZT 6631's BIOS is fully IBM VGA and VESA
compatible. The BIOS is contained in a 32K EEPROM located on the ZT 6631. It is
automatically installed during system initialization and is mapped to the standard 0C000
to 0C7FFh VGA BIOS memory space.
DRIVER AND UTILITY INSTALLATION
Three software disks are included with your ZT 6631. These disks contain the following:
Disk 1: DOS drivers and utilities
Disk 2: Windows 3.X drivers and utilities
Disk 3: Windows 3.X drivers and utilities
Installation utilities have been provided on each disk to facilitate smooth installation.
It is important to note that some display drivers need to have the associated vendor's
application program already installed on the system prior to loading the display drivers.
In other cases, loading the display driver may be an integral part of the vendor's product
installation process.
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 16
5. UTILITY SOFTWARE
The ZT 6631 comes with a set of utilities that allow you to take full advantage of the
VGA controller's capabilities. These utilities include functions such as setting the
ZT 6631 in various display resolutions. Below is a list of the utilities included with the
ZT 6631 and a brief description of their function.
CLMODE: A DOS program for configuring the video modes supported by the ZT 6631
TSRFONT: A TSR program that makes a full 8x14 size character set available to
programs that bypass the BIOS and draw characters directly on the screen.
WINMODE: A Windows utility that allows the user to change screen resolution and
number of colors from within Windows. Information on this utility can be found in the
"WinMode" topic of Chapter 12.
CLMODE
The CLMode utility allows the user to define the type of monitor attached, and set the
video modes supported by the ZT 6631.
Using CLMode's Menu-Driven Interface
Change to the directory that contains the CLMode utility. At the DOS prompt type:
CLMODE[Enter]
The main set-up window consists of a number of buttons. Each button represents a
different option or menu. The underlined letter of a button name specifies the hot key
combination for that item. Press [Alt] and the underlined letter keys simultaneously to
select an option. Note that to use a mouse pointer for button selection, a mouse driver
must be installed prior to running the CLMode utility.
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5. Utility Software
 17
CLMode Setup Window
Choosing the Monitor Brand/Model
Selecting the proper monitor brand/model allows the ZT 6631 to display the highest
quality output of which it is capable with the attached monitor. The monitor model
determines the video modes that are available to your system. It also determines the
vertical refresh rates available. Generally, the higher the refresh, the better the screen
looks. From the main setup window:
1. Select the Undo button at any time to void the operation.
2. Select the Monitor Brand text box. Use the up/down arrows to select your monitor
brand. If your monitor brand is not shown then select "other brand."
3. Select the Monitor Model text box. Use the up/down arrows to select your monitor
model. If your model is not shown, then select "other model."
4. Customize the monitor timings by setting the desired refresh rate for each resolution:
a. Consult the manual for your monitor to determine the correct rate for each
resolution.
b. Select the Monitor Refresh Rate text box for each resolution and use the
up/down arrows to set the correct rate.
6. When all of the settings are correct†, select the Exit button.
†Before saving the new monitor type, you may view each of the new video timings and check that they
are compatible with your monitor (see the "Video Modes Preview" and "Centering Adjust" topics).
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Video Modes Preview
You can preview each of the video timings set in the CLMode main setup window to
check that they are compatible with your monitor.
1. Select the Preview button on the main setup window to display the Video Modes
Preview window.
2. Display each test screen from this window.
3. After each test screen is displayed, press [Enter] or the left mouse button to see
the next video mode.
4. If there is a problem, press [Esc] or the right mouse button to return to the Preview
window.
Try slower settings for any resolutions that did not work and verify your choices again.
Centering Adjust
Centering is available while in the Video Modes Preview window (only for extended
Graphics modes 58h and greater). You can use the Right/Left/Up/Down arrow keys to
adjust your screen accordingly.
The screen adjustments have predefined limits, and in some cases the limit for the right
side adjustment for some modes will have already been reached when entering the
Preview mode. In that case, no right side adjustment is allowed.
Once a mode is adjusted, the new values for horizontal and/or vertical positioning are
saved within CLMode. When exiting from CLMode, you are prompted on whether you
want to save these new parameters to TSR (CENTER.COM). If you choose to do this,
the values to be used for the adjusted modes are stored in CENTER.COM on exit.
CENTER.COM can then be loaded outside of CLMode. Once this is accomplished, all
the modes that you have adjusted are the active modes set when that mode request is
made.
To unload CENTER.COM, you must change the Monitor Type currently set in CLMode.
This will unload CENTER.COM and uninstall all centering adjustments previously
redefined. To save new centering adjustments for a different monitor type, repeat the
above procedure. Your new adjustments are written into CENTER.COM over the
previously defined adjustments.
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An additional adjustment for monitor SYNC POLARITY is also available while centering
is active. To adjust the polarity of the current mode, simply press the PgUp or PgDn
keys (while in Preview) to cycle through the available options (Vertical Sync Polarity/
Horizontal Sync Polarity):
+/+, +/-, -/+, -/-
Note: Centering will not be allowed if CENTER.COM is loaded. You must unload
CENTER.COM before attempting to save new adjustments.
Limitations: You may only adjust and save 16 modes at a time to CENTER.COM.
Retrieving the Current VGA Controller Status
The information in the main CLMode window displays the VGA controller type, the BIOS
version number and the amount of video memory present.
Exiting the CLMode
To exit CLMode at any time, press the [Alt] and [F4] keys simultaneously, or click the
left mouse button on the system button of the main window (such as the top left corner
button of the window, shown as a bar), or select the Exit button. When the CLMode
utility exits, the current video mode, monitor type, and VGA refresh rate are displayed.
When CLMODE is exited, the settings are saved to the on-board EEPROM. These
settings are automatically loaded by the video BIOS the next time the board is powered
up. Note that CLMODE does not show the EEPROM present until it has been initialized.
The presence of the EEPROM can be confirmed in the System Information Box of the
main CLMode window.
Since the settings are saved to EEPROM, the ZT 6631 always powers up using these
modes and refresh rates. Make sure to reset the ZT 6631 to the default values (all
modes using 60 Hz refresh rates) before switching to a different monitor that might not
be able to handle the previous modes and refresh rates.
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