ULTRASTOR ULTRA 12F24 User manual

ULTRASTOR CORPORATION
ULTRA 12F24
ESDI CONTROLLER
INSTALLATION MANUAL
REVISION A
4.1.92

ULTRASTOR CORPORATION
ULTRA 12F24 ESDI CONTROLLER
Table of Contents
1.0 Introd ction
2.0 Feat res
3.0 Hardware Installation
3.1 ESDI Drive Jumper Configuration
3.2 Controller Jumper Configuration
3.3 Cable Connection and System Integration
4.0 Software Installation
4.1 ow evel Format Using Onboard Utility
4.1.1 UltraStor BIOS Setup Menu
4.1.2 Hard Disk Drive Preparation Menu
4.2 Disk Partitioning and High evel Format
4.3 Novell and COMPSURF
5.0 Tro ble Shooting G ide
Appendix A Mapping Options For Drives Under Various Operating
Systems
Appendix B Installing the 3rd Floppy Drive
Appendix C Co-Residence Installation
Appendix D Novell NetWare 386 Disk Duplexing
Appendix E SCO UNIX Installation Guide for Two Controllers
Appendix F Breaking the 528MB OS/2 imitation and Duplexing under
OS/2 AN Manager
Appendix G Other Application Notes Available
Appendix Reference I
Appendix Reference II
1.0 Introd ction
This manual explains how to install the U TRA 12F24 ESDI (Enhanced Small
Device Interface) and floppy disk controller. While emphasis is placed on PC's
running MS-DOS, the requirements for other operating systems are noted and
references given to application notes (some of which are included in this document).
Please read this document before you install the controller; you may find references
to application notes which will facilitate or simplify your particular installation. In
Reference Man al Page 1

general, if you are installing in a standard AT class machine operating under MS-DOS
with one U TRA 12F24 controller that has two ESDI drives and up to three floppy
drives, the information contained in this document will be sufficient for a successful
installation.
UltraStor’s family of disk controllers are designed to break the present system
bottleneck. . .its I/O throughput. The U TRA family of disk controllers provides the
ultimate in speed and features ideally suited to meet the needs of the high capacity,
high performance market. These many advanced features are designed to support a
broad range of applications, cost effectively and with ease of use.
The U TRA 12F24 is a member of this performance oriented, highly featured
U TRA family of caching disk controllers. With 32KB of track caching, it is
completely AT register and BIOS compatible. It supports two high transfer rate ESDI
drives, both of which can have different transfer rates of up to 24Mbits per second
and supports 1:1 interleaving on the fastest of AT buses available (16MHz). It
supports the largest selection of hard drives in the market today. The U TRA 12F24
also supports any mix (5.25" and 3.5") of up to three floppy disk drives or floppy-
tapes. (See Appendix B, Installing the 3rd Floppy Drive.) In addition to the special
support to break the 1024 cylinder and the 528MB partition limits of DOS and OS/2,
the U TRA family of caching controllers will also co-reside with any other controller
under DOS as well as another U TRA controller to support dual channels and/or
duplexing/mirroring in popular network operating systems.
2.0 Feat res
AT Register And BIOS Compatible
ULTRA Performance Provided By:
* 24Mbits per second ESDI support.
* On-board look ahead 32KBytes caching.
* 1:1 interleave capability even with 24Mbits per second ESDI drive.
* Automatic optimization head skew.
* Screen Edit programmable interleave factor.
* Automatic optimization cylinder skew.
* 16MHz I/O bus speed support.
* 24MHz internal processor speed to minimize firmware overhead.
* Optional spare sectoring allows defect-free continuous reading and writing.
S pports >1024 Cylinder Drives
S pports >528MByte Drives as a Single Vol me
17, 32, and 63 Sector Mapping
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Co-Resident with Another Controller in the System
S pports Any Combination of Three Floppy Drives (3.5" or 5.25") or Two
Floppy Drives Pl s One Floppy Tape
Uniq e S pport Of D plexing and Mirroring Under Novell and OS/2 LAN
Manager
Preserves Drive Man fact rer’s Defect Lists
Screen Edit Men s for Easy Installation
DOS, Xenix, UNIX, Novell, OS/2 Compatible
S pports Any Mix of 10, 15, 20, 22 or 24MHz ESDI Drive
J mper Disabling of On-board Floppy Controller
A tomatic Drive Preparation for Ease of Installation
S pports Fo r ESDI Drives Under UNIX/Novell or OS/2 (With Two Controllers)
for D al Channel Operation
Attaches ESDI Drives to the IBM PS/2 Model 30/286
56 Bit ECC Ens res Data Integrity
3.0 Hardware Installation
Hard Drives: 1 or 2 hard sector ESDI hard drives of any speed with the
manufacturer's instructions for setting jumpers.
Floppy Disk Drives: Up to 3 floppy drives of any size with data rates from 125Kb/s
to 500Kb/s with the manufacturer's instructions for setting jumpers.
Floppy Disk Cable: Standard twisted floppy control ribbon cable (34 wire, #10-#16
in twist) or a special cable for 3 floppies, (See Appendix B, Installing the 3rd Floppy
Drive).
Comp ter: A PC with a 16-bit AT(ISA) or 32 bit EISA bus slot. The PC's power
supply must be able to deliver adequate power and, if it does not have enough drive
power cables, you may need one or more Y-power cables.
Mechanical: You will need one or more screwdrivers or nut drivers to open the PC
case and install the drives and controller board. A small pair of pliers or tweezers may
be useful to change jumper settings.
Software: A bootable MS- DOS diskette that also contains the DEBUG, FDISK, and
FORMAT external command files.
Before you begin the installation you will need to know how many heads, cylinders,
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and sectors per track of each hard disk drive. You need to know only the total
formatted capacity for each floppy disk drive.
The controller exchanges information with the PC through a range of memory
addresses and through some "input/output ports." If the U TRA 12F24 is going to be
the system's only disk controller, the default values for these numbers will probably
work just fine. If you wish to install it in addition to another controller, you will have
to know the memory and port addresses that other controller uses and perhaps those
used by other options installed in your PC; please refer to Appendix C, Co-Residence
Installation.
Finally, you will have to know which operating system your PC will be using (PC-
DOS or MS-DOS, OS/2, UNIX, or Novell) and which version of that operating
system.
The U TRA family of caching controllers support many different operating systems
and networks. Installation instructions for several of them are included in this
document; In addition, UltraStor has several additional application notes available
upon request (See Appendix G).
There are three steps in the hardware installation prior to inserting the U TRA 12F24
into a system I/O slot:
1. Verify the ESDI drive jumper configuration.
2. Verify the controller jumper configuration.
3. Connect all the necessary cables.
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CAUTION
Please take proper electrostatic discharge precaution
when handling the board. Handle the product by
the ends of the board.

3.1 ESDI Drive Config ration
The ESDI drive should be configured as follows:
a. Verify and set the drive select jumper on the drive as follows:
1. If a straight 34 pin control cable is used, jumper the first drive as drive
select 1, and jumper the second drive as drive select 2.
2. If a twisted 34 pin control cable is used, jumper the first drive as drive
select 2, and jumper the second drive also as drive select 2.
Note: A twisted 34 pin control cable is a 34 pin flat ribbon
cable which has wires 25 through 29 twisted at one end of
the cable.
b. Install the drive termination resistors only on the drive that is at the end of
the control cable.
c. Set the jumper to spin up the drive motor upon system power up rather
than upon an ESDI spin-up command; generally the drive will come from
the factory set to spin up upon power up.
d. Set the drive jumper for hard sector mode. This is essential if the drive is to
function properly with your high performance U TRA controller.
e. Set the desired sectors per track jumper. For 10MHz ESDI drives it is
normally 36 sectors or below, for 15 MHz ESDI drives, 54 sectors or
below per track depending on the drive. Make sure you select an option
which uses 512 byte sectors.
3.2 Controller J mper Config ration
Refer to Figure 1.0 for the board layout showing jumper locations on the board.
Table 1.0 shows default factory jumper settings, and Table 2.0 shows controller
jumper definitions.
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Figure 1.0 - ULTRA 12F24 BOARD LAYOUT
TABLE 1.0
DEFAULT JUMPER SETTINGS
JUMPER FUNCTION U TRA 12F24
Cache Enable JP4 No Jumper
BIOS Address (C800:0) JP10 5-6
Floppy Configuration JP11 No Jumper
Hard Disk Primary Address JP12 No Jumper
Enable Floppy Controller JP17 Jumper
IRQ14/15 Select JP20 2-3
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···· :::::::::: :::::::::: ::::::::::::::::: :::::::::::::::::
::::
···
::
U16RAM
JP20
1 1 1
J3 J4 J5 J1
J6
JP4
11
1
1
1
2
22
4
3
3
JP12
JP11
JP10
Ultra 12F24
:
JP1
::::::

TABLE 2.0
JUMPER DEFINITION
JUMPER NUMBER DESCRIPTION
JP4 1-2 Reserved
3-4 IN: Cache Disabled
OUT: Cache Enabled
JP10 BIOS Address Setting:
1-2 3-4 5-6 BIOS Address
----- ----- ----- -------------------------
OUT OUT OUT Disable BIOS
OUT OUT IN C800:0
OUT IN OUT CC00:0
OUT IN IN D000:0
IN OUT OUT D400:0
IN OUT IN D800:0
IN IN OUT DC00:0
IN IN IN Disable BIOS
NOTE: Primary port address must use C800, D000, or D800. Secondary port
address must use CC00, D400, or DC00. JP12 selects primary or secondary port.
JP11 Configure floppy controller
1-2 IN: Support a third floppy drive with a single twisted
cable. The drive should be jumpered as DS4.
OUT: Support a third floppy drive with a double twisted
cable. The drive should be jumpered as DS2,
(Assuming drive select begins with DS1 not DS0).
3-4 IN: Drive 1 is configured for 3.5" PS/2 type or equiva-
lent floppy drive. (PS/2 type has a different pin 2
polarity definition than the AT type floppy drive).
OUT: Drive 1 is configured for AT type floppy
drive (Either 3.5" or 5.25").
5-6 IN: Drive 0 is configured for 3.5" PS/2 type or
equivalent floppy drive.
OUT: Drive 0 is configured for AT type floppy
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drive (Either 3.5" or 5.25").
7-8 IN: Floppy secondary port address is 370-377
OUT: Floppy primary port address is 3F0-3F7.
9-10 IN: Dual speed floppy drive support.
OUT: Single speed floppy drive.
11-12 IN: Precompensation is fixed at 125ns for all data rates.
OUT: Precompensation varies according to floppy
data rates; 250, 300, and 500KHz data rates have
250ns, 208ns, and 125ns precompensation each.
JP12 IN: Hard disk secondary I/O port address is 170-77
OUT: Hard disk primary I/O port address is 1F0-1F7
JP17 IN: Enable floppy controller.
OUT: Disable floppy controller.
JP20 1-2 IRQ15 select
2-3: IRQ14 select
3.3 Cable Connection And System Integration
After the controller and the drives are properly configured, connect all the necessary
cables according to the following steps with the system powered off:
a. Connect the drive power to the system power supply.
b. Connect the 34 pin daisy chained flat cable from the drive to J5 connector
on the controller. The twisted end of the cable is connected to the first
drive. Make sure pin 1 of the cable is connected to pin 1 of the drive and
controller connectors.
c. Connect the 20 pin flat ribbon cable from the first drive to the J4 connector
on the controller. Connect another 20 pin flat cable from the second drive
to J3 connector on the cable.
d. Connect the 34 pin daisy chained floppy flat cable to the J1 connector on
the controller. Connect the floppy drive power cable to the system power
supply.
e. Connect the drive activity ED cable from the system panel to the J6
connector on the controller board.
f. Remove the bracket from an empty expansion slot and use the bracket
screw in step g.
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g. Insert the controller card into any AT slot in the system and secure the
board with a bracket screw.
4.0 Software Installation
There are three steps for software installation:
1. ow evel format using the U TRA 12F24 on-board BIOS utility.
2. Disk Partitioning using the FDISK command under DOS.
3. High evel format or surface scanning using the operating system’s
format command.
After following the hardware installation according to the above instructions, the
following steps need to be taken before the low level format:
a. Turn on the system power and boot up DOS on floppy drive "A" (Floppy
drive "A" should contain DOS system diskette to boot.). SETUP programs
and AT ADVANCED DIAGNOSTIC programs are not required to add the
ESDI drive to the system CMOS RAM. However, in system setup, make
sure that the hard drive is specified as "installed". (Type 1 can be used.)
b. oad DEBUG program (or SID for DR DOS) from floppy drive "A" by
typing:
DEBUG
after the DOS prompt "A" sign.
c. Once in the DEBUG program, following the prompt "-" sign, type the
appropriate BIOS address to which the board is jumpered.
EXAMPLE:
g=C800:5 (if the board is jumpered to C800:0) OR
g=CC00:5 (if the board is jumpered to CC00:0)
d. The UltraStor "Utility Main Menu" will appear on the screen (See Figure
2.0). In order to do the low level format, the drive parameters need to be set
up first. The main menu allows users to enter both the "Drive Parameter
Set Up Menu" and the "Drive Preparation Menu".
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4.1 Low Level Format Using ULTRA 12F24 Onboard Utility.
4.1.1 UltraStor BIOS Set p Men .
Before the low level format is executed, set up the drive parameters. Select the
"Drive Parameter Setup" option from the main menu (Figure 2.0); the on-board
utility will go into "UltraStor BIOS Setup Menu", as shown in Figure 3.0.
The on-board utility will read the drive parameters from the attached ESDI drive(s)
and put the values into the appropriate field on the screen. Thus, the user does not
need to investigate and input these values manually.
Users can select from the "One Spare Sector/Track" option, the "Sector Mapping"
option, or the "Track Mapping" option for each drive independently. "32 or 63"
sector mapping is used for accessing drives that have more than 1024 cylinders. "17"
sector mapping is used for running any software that uses fixed 17 sectors per track.
The track mapping option is used for drives greater than 528MBytes under DOS.
All the options are independent of each other, thus providing a maximum number of
combinations.
Please refer to Appendix A, Mapping Options for Drives Under Various Operating
Systems, to set up mapping options for various drives' geometry and capacity under
different operating systems.
When all the appropriate options have been entered, press F10 to save then F5 to
confirm execution. The utility will update the system CMOS RAM with the correct
number of hard disk drives and save the mapping option to the hard disk, then boot
up again under DOS. (Refer to Section 5.0 if drive parameter is incorrect.)
FIGURE 2.0
Use Up/Down Arrow keys to select, Enter key to execute,
and ESC key to exit.
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ULTRASTOR UTILITY MAIN MENU
Version 2.02
1. Drive Parameter Setup
2. Drive Preparation

FIGURE 3.0
Use the ARROW KEYS to change fields, the SPACE BAR
to select options, the ESC key to exit and F10 to save.
UltraStor BIOS Set p Men
The drive parameters are obtained by inquiring the ESDI drive. Each drive can be
configured to have a different Sector Mapping or Track Mapping than the other.
One Space Sector/Track:
NO: No spare sector per track is allocated. All sectors are used for data.
YES: Drive is formatted to have a spare sector per track. The controller will
automatically relocate a bad sector on that track to a spare sector. Thus,
creating a defect-free drive (for drive with only one defect per track).
NOTE: ow level format is required if this option is changed.
Sector Mapping:
NO: No Sector Mapping will be performed. The disk's physical parameters will
be used.
17: 17 Sector Mapping will be performed. This is used to run any software
which fixes the sectors per track to 17.
32: 32 Sector Mapping will be performed. This option is an alternative to the
63 Sectors Mapping in the event that the application software cannot
function with a large sector per track number (e.g. PC-DOS version 3.2
with a drive having more than 1024 cylinders).
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Drive 0 Parameters
Type ESDI
Cylinder 1457
Head 16
Sector 57
Precomp 65535
Landing Zone 1457
One Spare Sector/Trk NO
Sector Mapping NO
Track Mapping NO
1024 Cyl Tr ncation NO
ULTRASTOR BIOS SETUP MENU
Drive 1 Parameters
Type NONE
Cylinder 0
Head 0
Sector 0
Precomp 0
Landing Zone 0
One Spare Sector/Trk NO
Sector Mapping NO
Track Mapping NO
1024 Cyl Tr ncation NO

63: 63 Sector Mapping will be performed. This option is used when the drive
has over 1024 cylinders and less than 528MB capacity. This option allows
users to get around the 1024 cylinder AT system BIOS limitation and
utilize the full capacity of the drive (up to 528 MBytes). This option must
be turned on for any drive with more than 63 sectors per track.
Track Mapping:
NO: No Track Mapping will be performed.
≤1.2GB: Track Mapping is performed to overcome the AT interface limitation under
DOS of 528MB and the drive connected is above 528MB and under
1.2GB. With this option, the user will be able to use drives that are greater
than 528MB without any third party software. This cannot be used under
Novell, or Unix/Xenix operating systems. UltraStor provides a device
driver for OS/2 (See Appendix F).
>1.2GB: Track Mapping is performed to overcome the AT interface limitation under
DOS of 528MB and when the connected drive is over 1.2GB. With this
option, the user will be able to use drives that are greater than 528MB
without any third party software. This cannot be used under Novell, OS/2,
or Unix/Xenix operating systems.
1024 Cyl Tr ncation:
NO: 1024 Cylinder Truncation will not be performed.
YES: Cylinder number will be truncated to 1024 to allow operating systems that
cannot use Track Mapping to overcome the 1024 cylinder limitation. This
is used in OS/2 applications to achieve a maximum of 528MB drive
capacity. UltraStor's OS/2 device driver (available through distributors) will
be needed to achieve more than 528MB disk capacity.
4.1.2 Hard Disk Drive Preparation Men
Once the drive parameters have been set up according to the instructions in Section
4.1.1 above, the drive is ready to be low level formatted according to the following
procedure:
a. After system bootup is complete from drive "A" (DOS System disk is in
drive A), load DEBUG program (or SID for DR DOS) from floppy drive
"A" by typing:
DEBUG after the DOS prompt "A" sign
b. Once in the DEBUG program, following the prompt "-" sign, type the
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appropriate BIOS address to which the board is jumpered.
EXAMPLE
g=C800:5 (if the board is jumpered to C800:0) OR
g=CC00:5 (if the board is jumpered to CC00:0)
c. The UltraStor "Utility Main Menu" will appear on the screen (See Figure
2.0).
d. Select the "Drive Preparation" option by using the up/down arrow keys and
press "Enter".
e. The "Hard Disk Drive Preparation Menu" will appear on the screen (as
shown in Figure 4.0).
f. Select the drive number to be low level formatted by using the arrow keys
and the SPACE BAR. Users can also change the default value on interleave
setup, head skew, and cylinder skew, before executing the low level format
g. For most users, go to the AUTOFORMAT field to low level format the
specified drive. Users can choose either the "Brief AutoFormat" or the
"Extended Auto Format". The "Extended AutoFormat" will take longer to
prepare the drive.
h. For the advanced user or for certain applications, users can choose to
bypass the AutoFormat and go to the disk controller commands for defect
management and low level formatting (See Figure 4.0 for the option and
command explanation).
i. After the message "Format Complete", hit ESC key twice to get out of the
low-level format utility.
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FIGURE 4.0
Use ARROW KEYS to change fields, SPACE BAR to select
options, ESC key to exit, RETURN key to execute, and F1
to pause or continue
Hard Disk Drive Preparation Men
Drive: Choose Drive 0 or Drive 1 to be prepared
Interleave: Interleave can be programmed from 0 to 9.
NOTE: Interleave 0 and 1 both provide 1:1 interleaving.
HdSkew: Head skew can be programmed from 0 to 25. Head skew 0 means no head
skew will be performed. The default value shown is calculated and maximized
according to the ESDI drive connected.
CylSkew: Cylinder skew can be programmed from 0 to 25. Cylinder skew 0 means
no cylinder skew will be performed. The default value shown is calculated and
maximized according to the ESDI drives connected.
A toFormat: This option will perform automatic format procedure on the drive.
Four options are provided: "Brief", "Extended", "Brief-N", and "Extended-N"
formatting.
Brief: Selecting the Brief AutoFormat will instruct the controller to do the
following steps automatically:
* Retrieve the drive defect list from the ESDI drive.
* ow evel format the entire drive.
* Format the factory defects as bad sectors.
* Verify the entire drive and record any additional grown bad spots.
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DEFECT LIST
HD/CYL/SC/BFI/LEN HD/CYL/SC/BFI/LEN HD/CYL/SC/BFI/LEN
Drive Cylinder Head Sector Precomp Landing Zone Capacity(MB)
0 1457 16 57 NONE 1457 679.4
HARD DISK DRIVE PREPARATION MENU
Drive Interleave HdSkew CylSkew A toFormat Defect List Primitives
0 1 2 16 Brief Retrieve Verify

* Store the grown defect list discovered during drive verification.
* Format the grown defects as bad sectors.
Extended: The Extended version of AutoFormat will use the write and verify
command instead of the verify command, as in the Brief AutoFormat. The rest
of the sequence and the commands are the same as in the Brief AutoFormat.
Because the controller will write a few different patterns to the drive and verify
each pattern, the Extended AutoFormat will take much longer to prepare the
drive.
Brief-N: This option will perform all the steps as in "Brief" but will also
perform the following:
* Scan the entire disk and create the defect list structure compatible with
Novell.
Extended-N: This option will perform all the steps as in "Extended" but will
also perform the following:
* Scan the entire disk and create the defect list structure compatible with
Novell.
Defect List: The user can manipulate the defect list manually, if so desired. The
defect list field allows the user to retrieve the defect list from the ESDI drive, add a
defect entry, delete a grown defect entry, store the manually entered grown defect list
to the drive, and clear the screen.
Note: If a defect location +/- 15 bits around it falls between 2
sectors, BOTH sectors will be marked as bad. Thus, it is possible
for the controller to report more defect sectors than the number of
defects shown on the drive, even with no grown defects found.
This extra precaution is designed to provide a more reliable
defect free drive.
Retrieve: Retrieve the factory defect list and the grown defect list (if any)
from the drive.
Add Entry: Add more defects to the original list.
Del Entry: Delete a grown defect list entry. Users cannot delete the original
factory defect list. Only the grown defect list can be deleted.
Store: Store the defect list shown on the screen to the drive.
ClrEntries: Clear defect entries on the screen
Primitives: This option allows the user to get into the low level functions.
Format: ow level format of the entire disk.
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Wrt & Vrfy: Write and verify command. Controller will write a few data
patterns to the drive and verify each pattern.
Verify: The controller will verify the data integrity of the drive.
LockDefect: ock defect command will take the defect list information on the
screen and map out those defects from the drive. They are formatted as bad
sectors.
Scan-N: This option will scan the entire disk and create the defect list structure
compatible with Novell.
4.2 Disk Partitioning and High Level Format
After the drive has been successfully low level formatted, the operating system needs
to be installed. For most users, run the FDISK program first; then run the FORMAT
program under DOS. DOS 3.3 and below have a partitioning limit of 32MBytes per
drive partition. Using third party disk partitioning software will overcome this
limitation. Consult your DOS manual for installing the operating system.
4.3 Novell and COMPSURF
A feature to speed up and ease Novell COMPSURF installation is provided. This
UltraStor feature enables the user to perform Novell COMPSURF in minutes rather
than hours. After the disk has been prepared using the "-N" options (in the
AutoFormat or Primitive field), run COMPSURF and answer the questions as
described below:
Format the Disk No
Maintain the Current Media Defect ist Yes
Number of Sequential Passes 1
Number of I/O Random Test "Enter" To Use Default
Are the Parameters Correct Yes
After COMPSURF has initialized track 0, the user may press Alt + F10 to terminate
the lengthy scanning process. Continue by executing Netgen to install Novell.
For additional details on Novell Installation, please refer to the Appendix Section of
this installation guide.
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5.0 Tro ble Shooting G ide
The following are the most often encountered problems and solutions that may be
helpful in solving your problems. Please check them before calling your vendor for
technical assistance.
Wrong Drive Parameters
If parameters for the attaches drive(s) in Drive Parameter Setup Menu are shown as
„None 0 0 0 0 0“ upon entering the menu:
1. Check cable connections (refer to Section 3.3)
2. Check drive select jumper on the hard drive (refer to Section 3.1.a)
3. Check to see if the hard drive is set for "motor spin" at power up (Section
3.1.c).
4. If the above settings are correct, replace cables with a new set of cables,
(both the 34 pin and the 20 pin cable).
3rd Floppy Drive Installation (For DOS Only)
Contact your vendor for the UltraStor 3rd floppy device driver "EXFDRV.SYS" and
see Appendix B, Installing the 3rd Floppy Drive.
Tape Back p Unit Installation
Please see Appendix B, Installing the 3rd Floppy Drive.
Add-On Card Conflict with ULTRA 12F24
If a conflict exists with other add-on cards (video cards, network cards, or another
hard disk controller) and the U TRA 12F24, the symptoms are:
1. System "hangs" upon power up, or;
2. Debug cannot access U TRA 12F24 BIOS utility:
- Try to determine which cards have the conflict by the process of
elimination. eave the cards that have the conflict and the video card in
the system only.
- Then see sections "Debug Hangs" and "Video Conflict" for solutions.
Deb g Hangs
- Try to get a different controller BIOS address. On jumper JP10, choose
any of C800, D000, D800 for primary controller, any of CC00, D400,
DC00 for the secondary controller.
- Also see "Add-on Card Conflict" and "Video Conflict".
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Video Card Conflict
- If using a different BIOS address (see Debug Hangs) does not solve the
problem, try turning the VGA memory access to 8 bit mode.
- Contact your vendor for technical assistance.
Slow in Formatting OR Every Sector is Reported as Bad D ring Verify
- Check to see that drive is set to hard sector mode.
- Check to see that the drive’s "sector per track" is set properly (Section
3.1.e).
Don’t Achieve Capacity Under DOS
Check to see if the correct mapping option is selected according to the drive
geometry and size. (See Appendix A, "Mapping Options for Drives Under Various
Operating Systems".) If incorrect mapping options are chosen (backup data from hard
disk, if necessary), delete all partitions that are already defined, then select and save
the correct mapping options in the Parameter Setup Menu. Using FDISK, redo the
drive partition and high level format.
Don’t Achieve F ll Capacity Under OS/2 1.1, 1.2 for Drives Greater than
528MB
To obtain the maximum drive capacity (528MB) that OS/2 1.1, 1.2 can support,
select 63 sector mapping and 1024 Truncation mapping options for a drive that is
greater than 528MB. (See Appendix A, Mapping Options for Drives Under Various
Operating Systems, for other drive sizes.)
To achieve drive capacity above 528MB, please refer to Appendix F.
Hints Regarding DiskManager and SpeedStor
* Running SpeedStor - use default parameter, reported from System INT 13
"Read Drive Parameter" by running SSTOR/NOTYPE. Install SpeedStor
Device Driver by running ADDEVICE/NOTYPE
* Running DiskManager - use Manual Mode by DM/M
* Do NOT perform low level format for either DiskManager or SpeedStor.
Operating System or System BIOS Error Messages
* "Hard Disk Failure" - this message is displayed if the drive is unformatted.
* "Shadow RAM error at 3E00" - try different BIOS address at D000, D800,
(See Deb g Hangs).
* "Error accessing Hard Disk Controller" during NOVE or UNIX
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