This readme file contains the installation procedures for Tyan's S1342,
S1345, and S1346 controllers. Please read the followings very carefully, and
follow the correct procedures to install the 32bit VL-IDE miniport driver for
Windows 95.



=============================== Features ===================================

* This is a 32 Bit miniport driver which supports IDE HD and Atapi CD-ROM
  in just one driver.

* The driver supports up to 4 CHS HD, 4 LBA(Enhanced IDE), and 4 Atapi IDE CD-ROM.

* This driver corrects the problem for the Western Digital and Maxtor HD,
  where the Standard IDE/ESDI driver from Microsoft can not find those HD
  if they are not on primary IDE channel.

* The driver will identify the hard drive and the CD-ROM with the correct
  manufacturer and model number information. Where as the one from MS will
  only identify the HD type.


=========== How to install the 32bit IDE miniport driver? ==================

1. After unziping the TYN95.zip file, please copy all the files to a
   blank diskette. Copy S134X95.SYS to C: Drive and add the statement

   device=c:\s134x95.sys #

          (Notice that # is the wait state of your VL local bus. Please use
          1 for high performance system, 2 for VL bus speed = 33Mhz, 5 for VL
          bus =50Mhz, and 7 for default.)

   in your config.sys file. This the real mode driver which will turn on all
   the enhanced features for IDE chip. The # is the wait state for the
   system. The valid numbers are 1 to 7 for 1 being the fastest and 7 being
   the slowest. Follow the steps below to install the 32 bit protected
   miniport IDE driver.


2. Restart Windows 95. By this time, the system should have 1 or 2 "Standard IDE/ESDI
   hard disk controller" installed under Win95. Please Remove those drivers
   first. Double click My_Computer->Control_Panel->System. Then choose the
   Device Manager folder and go down to the Hard Disk Controller section.
   Click on the + sign so that you will see 1 or 2 "Standard IDE/ESDI" driver
   for your hard drive. Remove ALL the "Standard IDE/ESDI Hard Disk Controller"
   Do not restart yet.

3. After removing all the "Standard IDE/ESDI" drivers, close the SYSTEM
   windows and double click on the "Add New Hardware" icons.
   Select "NO" when asked if you want Windows to search for your new hardware.
   Click NEXT to continue, then double click the "Hard Disk Controllers"
   selection and then click on "Have Disk..." bottom.

4. Insert the disk that you've just made to Drive A: and click OK to continue.
   You will see "Tyan S134X VL-IDE Controller" being hi-lighted. At this
   point, click NEXT to continue the installation then click OK to copy
   the file. ***If you have any device hook up to the 2nd IDE channel, please
   repeat step 3 and 4 again to add another driver; otherwise, continue.***

   **During this time, if your have IDE CD-ROM hooked up to the controller,
   then the mouse pointer will pause for a short period of time. Please do
   not panic, this is when the new device driver is trying to identify your
   CD-ROM and HD in your system. Some CD-ROMs respond very slow so that we
   have to stop all your windows activities to correctly identify the IDE
   CD-ROM.***

5. After copy the file, Windows will ask you to restart or say there is a
   conflict somewhere, but don't restart. Instead, double click SYSTEM in
   the Control Panel again and pick the Device Manager folder. Go down to
   the Hard Disk Controller section and select the 1st "Tyan S134X VL-IDE
   Controller". Click on the "Properties" bottom then select the "Resources"
   folder. Click on the "Set Configuration Manually" bottom and change the
   "Setting based on" to "Basic Configuration 0". Click OK to save the change.
   Choose the 2nd Tyan S134X VL-IDE controller if you have one, then do the
   same thing except this time pick setting based on to "Basic Configuration
   1"

*6. Step 5 is very important. The first Tyan S134X VL-IDE Controller must use
*   the addresses 1F0-1F7, 3F6-3F7, and IRQ 14 and the 2nd Tyan S134X VL-IDE
*   controller must use addresses 170-177, 376-377, and IRQ 15. Otherwise,
*   your system can not shut down properly, restart correctly, or restart
*   to MD-DOS mode. This is not caused by the driver but rather it's a bug
*   in Win95. If you reverse the order for the "standard ide/edsi" driver,
*   you will get the same result as well. So please, make sure you don't
*   reverse the order of the driver. Also, you must remove all other IDE HD
*   drivers before adding this driver; otherwise, Win95 can not properly
*   register this driver correctly.

7. Restart the computer by choosing Start->Shut Down->Restrat the Computer.

8. After restarting, you can check to see if the driver is correctly loaded.
   Check the Performance folder in the SYSTEM icon and make sure you are
   using 32 bit file system and 32 bit Virtual Memory for max. performance.
   Or you can check the Hard Disk Controller in the Device Manger folder and
   make sure the miniport driver is loaded. Or you can check the Disk Drives
   in the Device Manager folder to see if the driver identify each hard drive
   correctly with the correct HD manufacturer and HD model number.



=========================== Important Notes ===============================

1. Please make sure that the 1st Tyan S134x VL-IDE controller uses the
   addresses 1F0-7, 3F6-7, and IRQ 14 and the 2nd Tyan S134X VL-IDE controller
   uses the addresses 170-7, 376-7, and IRQ 15. Otherwise, your system can not
   be shut down correctly and you can not even boot to MS-DOS mode from
   Win95. Please refers back to step 5 of the installation procedure.

2. If you have slow machine, ie below 486/66Mhz, then you probably will notice
   a pause during Windows 95 startup. Don't worry, this is caused by the
   S134X.mpd miniport driver identifying all your devices on both IDE channel.
   Sometimes during the adding of this driver, the mouse will stop. When this
   happen, please wait a while because the driver is trying to identify all
   your HD and IDE CD-ROM in your system. Please turn off the power and try
   to install the driver again if you can not move the mouse after 3 minutes.

3. Some IDE CD-ROMs behave strangely as a master when a HD is attached as a
   slave. If you get the message of Windows protection Fault, then please hook
   up the CD-ROM as a slave and the HD as a master instead.

4. To increase the performance, always separate the CD-ROM from the HD. For
   example, if you have 1 or 2 HD and 1 IDE CD-ROM, put the HD on the primary IDE
   channel and the CD-ROM on the 2nd IDE channel. If you have 3 HD and 1 CD-ROM,
   put the fastest HD on the primary channel and put the slowest HD as a
   master on the channel and the CD-ROM as a slave on the 2nd channel.



==============================Report Problem ==============================
This miniport driver has been tested with the following devices.

ATAPI IDE CD-ROM:
        Sony 2X
        Mitsumi 2X
        Toshiba 4X

Hard Disk:
        Conner  200MB
        Conner  1.2BG
        Fujitsu 1GB
        Quantum 270MB
        Quantum 345MB
        Quantum 540Mb
        Quantum 730Mb
        Quantum 1GB
        Seagate 540MB
        Western Digital 1GB


If you have any problem with this device driver, please e-mail to
                        bugs@tyan.com
But please, read the important notes from above before you identify new
problems.


PS. Check out our WWW site at http://www.tyan.com for any update.







