Page 1

356/357
803860X
Mainboard
User's Manual
I
4860LC
Page 2

The information presented in this publication has been
carefully checked for reliability; however, no responsibility
is assumed for inaccuracies. Specifications are subject to
change without notice.
Trademarks
IBM, PC, PC/AT and OS/2 are registered trademarks of
International Business Machines Corporation.
Cyrix is a registered trademark of Cyrix Corporation.
AMI
IS
a registered trademark of American Megatrends
Inc.
MR BIOS
Inc.
IS
a registered trademark of Microid Research
Page 3

ii
Contents
Chapter
Chapter 2: Hardware Configuration 3
Jumper Switch Settings 11
1:
Introduction
Key Features 1
Power Precautions 3
356 ISA Mainboard Component Locations 4
357 ISA Mainboard Component Locations 5
Connectors 6
Memory Installation 14
iii
Security Setup 34
First-Aid Setup 35
Speed Setup 36
1
Cache Setup 37
Shadow RAM Setup 38
Chipset Setup 39
Appendix A: AMI BIOS Hard Disk Types 40
Appendix B: AMI BIOS Error Codes 42
BEEP ERROR CODES 43
ERROR MESSAGES 44
HARD DISK UTIUTY ERROR MESSAGES .47
Appendix C: MR BIOS Fixed Disk Table 59
Chapter 3: BIOS Setup 15
AMI BIOS Setup 16
Main Menu Options 17
STANDARDCMO ETUP 17
ADVANCED CMOS ETUP 19
AUTO CONFIGURATION WITH BIOS DEFAULTS 24
AUTO CONFIGURATION WITH POWER-ON
DEFAULTS 24
CHANGE PASSWORD 25
AUTO DETECT HARD DISK 25
HARD DISK UTIUTY 26
MR BIOS 27
Summary Screen 27
ClockSetup 29
Keyboard Setup 30
FloppySetup 31
Fixed Disk Setup 32
Boot Sequence Setup 33
Appendix D: MR BIOS Error Codes 51
Diagnostic Port 80H POST-CODES 51
BEEP CODES and MESSAGES 53
Appendix E: Technical Reference 57
I/O Address Map .57
Interrupt Controllers 58
Page 4

he 356/357 ISA mainboard is a high-performance
main board based on an 80386/486DLC microprocessor,
T
and the MXIC chip. The main board offers a high degree of
flexibility in configuration and is fully IBM PC/AT
compatible.
Key Features
The advanced features of the 356/357 ISA main board
include:
1
Chapter 1
Introduction
• Support for the following CPUs:
80386 DX running at 33/40 MHz
486DLC running at 25/33/40 MHz (356 ISA
main board only)
• Built-in cache controller and cache memory that
supports:
- Built-in 8K two-way Associate or Direct-map cache
- Hidden DRAM refresh to boost system performance
- Fast Gate A20 to optimize OS/2 operations
- Shadow RAM for BIOS and Video ROM
Page 5

2
Sophisticated Page DRAM controller that supports:
•
Chapter 1
3
- Two banks of CPU speed DRAM with memory size
up to 32 MB
- Mixable 256K x 9, 1M x 9, 4M x 9 modules
- 256KB or 384KB(A to F segment of first 1 MB
relocation to the top of DRAM memory
Seven 16-bit I/O slots and one 8-bit I/O slot. (356 ISA
•
main board)
Six 16-bit I/O slots. (357 ISA mainboard)
•
4 layer PCB with dimensions of 22cm x 22cm. (356
•
ISA main board)
4 layer PCB with dimensions of 22cm x 17cm. (357
•
ISA main board)
Chapter 2
Hardware Configuration
efore you install the 356/357 ISA main board into the
system chassis, you may find it convenient to first
B
configure the mainboard's hardware. This chapter describes
how to install a math coprocessor and memory modules,
and where to attach components.
Power Precautions
Before you begin configuration, make sure you are working
with an unplugged main board. ,Many components are
powered by low-voltage current, but there still may be a
dangerous electric current coming from the leads and
power supply. You should take the following precautions:
• Turn off the mainboard, and unplug the power cord
before you begin
• Unplug all cables that connect the mainboard to any
external devices.
Page 6

4
Chapter 2
Hardware Configuration
5
356
~
ISA Mainboard Component Locations
J~
1,-__ 8_7_42__
,--
,-- ,--
48
•....
'--
'--
- -
3167/387DX
\S7DlC)
r::IJ
04
Turbo
LEO
3
1 1
all
a:aD
JP5
Keylock Speaker Reset Turbo
Figure
5
J7
-
CX486DLC
CPU
1
4
mIl r::IJ
J6 J5
2-1.
3561SA Mainboard Component Locations
(PQFP)
r::IJ
J4
Switch
80386
CPU
[MXB3C30·1 rXBm061
J2
19100000010000001
1 12
J3 JP2
§:
Bank 1
J1
357
r-:-:
ISA Mainboard Component Locations
Jp
=-::4"8r-r=1:::r-_8=7~4_2=__=_=
---'=;---r-~I;::::=B=' o=s=;r:II=JB:=;oo::::;--l=o~o~
(MXB3C3061
80386DX
'--
-
'--
-
CPU
(PQFP)
,
Qr:;l
-
04r::IJ
r::IJ mIl
J5 J4 J6 J7
Reset Turbo Speaker Keylock
Switch
Figure
'---
4 1 5
2-2~
3571SA Mainboard Component Locations
uLJ
J2
1 12
Bank 1
Page 7

6
Chapter 2
Connectors
Attach system components and case devices to the main board
via the main board connectors. A description of each
connector and its connector pins follows. See Figure 2-1 or
Figure 2-2 for the location of the connectors on the
main board.
Note: Before making connections to the board, make sure that power to the
system is turned off.
D4 - Turbo LED
D4 connects to the Turbo LED.
Hardware Configuration 7
J1 - Power Supply Connector
The power supply connector uses two six-pin male header
connectors. Plug the dual connectors from the power directly
onto the board connectors.
Pin Description Pin
1
2
3
4
5
6
Power Good
+5V DC
+12V DC
-12V DC
Ground 11
Ground
10
12 +5V DC
7
8 Ground
9
Description
Ground
-5V DC
+5V DC
+5V DC
Pin Description
1
2
VCC
Turbo LED
J2-Keyboard Connector
A standard five-pin female DIN keyboard connector is
located at the rear of the board J2.
Pin Description
1 Clock
2 Data
3
4
5 +5V
N.C.
Ground
Page 8

8
13 -
External Battery
Chapter 2
Hardware Configuration
14 -
Turbo Switch
9
The 356/357 ISA main board has a battery on-board;
however, you can also attach an external battery to connector
J3.
Pin Description
1
Power
N.C.
2
3
Ground
4
Ground
Notes:
1.
For the 357 mainboard, the factory default setting has
a jumper cap on pins 2 and 3 for an installed
rechargeable battery. When you install an external
battery, remove this jumper cap and then plug the
external battery connector in J3. Disconnect the
Internal battery with a soldering iron.
2. For the 357 mainboard, discharge CMOS memory by
taking the connector cable off of pins 2 and 3, and
attaching it to pins 3 and 4.
3. For the 356 mainboard the CMOS discharge function
is controlled by jumper JP2. See jumper JP2 on page
J4 connects to the Turbo Switch, which is used to select the
main board's clock speed.
Pin
1
2
15 -
Reset Switch Connector
Attach the Reset switch cable to this connector.
Pin
1
2
Description
Turbo Switch
GND
Description
Ground
Reset
Page 9

10
J6 - Speaker Connector
Attach the system speaker to connector J6.
Pin Description
1 Speaker
2
3 GND
4
NC
VCC
Chapter 2
Hardware Configuration
Jumper Switch Settings
You can configure hardware options by setting jumper
switches on the main board. See Figure 2-1 or Figure 2-2 for
jumper locations.
Set a jumper switch as follows:
• Short
a jumper by. placing the plastic jumper cap over
two pins of the jumper.
11
J7 - Keylock
J7 is a keylock connector that enables and. disables the
keyboard and the Power-LED on the case.
&
Power LED Connector
Pin
1
2
3
4
5
Description
LED Power
NC
Ground
Keyboard Inhibit
Ground
• Open
Note: When you open thejumper, attach the plastic jumper cap to one of the
pins so you won't lose it.
the pins of a jumper by removing the jumper cap.
Symbols:
For setting 3-pin jumpers, the symbols below are used:
Pins 1 and 2 are Shorted with a jumper cap.
.1-1
123
Pins 2 and 3 are Shorted with a jumper cap.
For setting 2-pin jumpers, the following symbols are used:
The jumper is Shorted when the jumper cap
is placed over the two pins of the jumper.
The jumper is Open when the jumper cap is
removed from the jumper.
Page 10

12
Chapter 2
Hardware Configuration
13
JP2 - Battery Charge/Discharge Selector (356 only)
Set jP2, to charge/discharge the Internal/External battery.
You can use this jumper to discharge the main board's
CMOS memory. The factory default setting has a jumper cap
on pins 1 and 2 for the
battery. Set the jumper as below.
Description
Charge
Discharge
JP4 - Mono/Color Selector
Set the jumper, jP4, to configure the main board for either a
color display card or a monochrome display card. Set the
jumper as below.
Charge
state of Internal/External
JP2
~lllllllil-1
123
1·11111111Iil~
1 2 3
JP5 - CPU Type Selectors (356 Only)
Set jP5 to configure the main board to recognize the type of
CPU installed.
CPU Type
386DX
486DLC
JP5
~llllrlll·1
1 2 3
1-lllll
1 2 3
Display Adapter
Color Display
Mono Display
JP4
Page 11

14
Chapter 2
15
Memory Installation
The main board lets you add system memory via SIMM
sockets on the main board. On-board memory is iocated in
two banks: Bank 0 and Bank 1. Four SIMM sockets are
provided in each bank. You can install either a 256K, 1M,
or 4M SIMM in each socket. Note that all SIMM modules in
a bank must be the same capacity.
The main board supports the following configurations:
Memory Size
1 MB
2 MB
4 MB 1M
5 MB
8 MB
16 MB
20 MB
32 MB
Bank 0
256K
256K
256K 1M
1M
4M
1M 4M
4M 4M
Bank 1
-
256K
-
1M
-
Chapter 3
BIOS Setup
his chapter explains how to configure the mainboard's
BIOS setup program. The mainboard has either the
T
AMI
chapter, or the
part of this chapter.
After you have configured the main board, and have
BIOS, which
assembled the components, you can turn on the completed
system. At this point, run the software setup to ensure that
the system information is correct.
The software setup of the system board is achieved through
Basic Input-Output System (BIOS) programming. You use the
BIOS setup program to tell the operating system what type of
devices are connected to your system board.
The system setup is also called CMOS setup. Normally, you
need to run system setup if either the hardware is not
identical with information contained in the CMOS RAM,
or if the CMOS RAM has lost power.
IS
described in the first part of this
MR
BIOS, which is explained in the latter
Page 12

16
Chapter 3
AMI BIOS Setup
17
AMI BIOS Setup
The setup program provided with the 356/357 ISA
main board is the AMI BIOS from American Megatrends
Inc. Enter the AMI Setup program's Main Menu as follows:
1.
Turn on or reboot the system. After a series of
diagnostic checks, the following message appears:
"Hit <DEL> if you want to run SETUP"
Press the <DEL> key to enter the AMI BIOS setup
2.
program and the following screen appears:
AUTO CONFIGURATION WITH BIOS DEFAULTS
AUTO CONFIGURATION WITH POWER-ON DEFAULTS
3. Choose an option and press <Enter>. Modify the
system parameters to reflect the options installed in
the system. (See the following sections for more
information.)
STANDARD CMOS SETUP
ADVANCED CMOS SETUP
CHANGE PASSWORD
AUTO DETECT HARD DISK
HARD DISK UTILITY
WRITE TO CMOS AND EXIT
DO NOT WRITE TO CMOS AND EXIT
Main Menu Options
The Main Menu options of the AMI BIOS are as below.
STANDARD CMOS SETUP
Run the Standard CMOS Setup as follows.
1.
Choose "STANDARD CMOS SETUP" from the Main
Menu and a screen with a list of items appears.
BIOS SETUP
1991 American Megatrends
(C)
(mn/date/year),Tue,
Date
(hour/min/sec),12,24,38
Time
disk C, type
Hard
disk D, type
Hard
Floppy
drive A:
Floppy
drive B:
Primary
Keyboard
IESC,Exit.j.-+i.-,Select
Month
Date
Year
display
,
Jan,
,
01,
,
1901, 1902, ...2099
,
Not
,
Not Installed
,
Not
,
Not Installed
,
Not Installed
,
Not Installed
Feb, ..... Dee
02, 03, ...31
F2/F3,Color
PROGRAM-STANDARD CMOS SETUP
Aug
15 1992
Installed
Installed
Inc. ,
Cyln
PU/ PD, Modify
Head WPcom LZone See Size
Rights
All
Base memory
Ext.
Sun Mon Tue Wed Thu
30 31 1
6
13 14 15
20 21
27 28 29 30 31 1 2
3
Reserved
size
memory
size,3072 KB
2 3 4 5
7
8 9 10
16 17 18 19
22 23 24 25 26
4
6 7 8 9
5
,
640 KB
Fri
11
Sat
12
4.
Press <ESC> at anytime to return to the Main Menu.
5.
In the Main Menu, choose "WRITE TO CMOS AND
EXIT" to save your changes and reboot the system.
Choosing "DO NOT WRITE TO CMOS AND EXIT"
ignores your changes and exits the program.
Use the arrow keys to move between items and to
2.
select values. Modify the selected fields using the
PgUp/PgDn keys. Some fields let you enter numeric
values directly.
Page 13

18
Chapter 3
AMI BIOS Setup
19
Date (mn/date/year)
Time (hour:min:sec)
Hard disk C&D
Type the curren t date
Type the current time
Choose from the standard hard disk
types 1 to 46. See Appendix A. Type 47
is user definable. If a hard disk is not
installed choose "Not installed."
Floppy drive A&B
Choose
360KB 5 1/4"
1.2MB 5 1/4"
720KB 3 1/~'"
1.44MB 3 1/2"
2.88MB 3 1/2"or
Not installed
Primary display
Choose
Monochrome,
Color 40x25,
VGA/PGA/EGA,
Color 80x25, or
Not installed
Keyboard
Choose Installed or Not installed
3. After you have finished with the Standard CMOS Setup
program, press the <ESC> key. The following appears:
ADVANCED CMOS SETUP
Run the Advanced CMOS Setup as follows.
1. Choose "ADVANCED CMOS SETUP" from the Main
Menu and a screen with a list of items appears.
BIOS SETUP PROGRAM - ADVANCED CMOS SETUP
1991 American Megatrends
(C)
Typematie Rate Programrnlng:Disabled
Typematie Rate Delay
Typematie Rate (Chars/See):15
Above 1 MB Memory Test
Memory Test Tick Sound
<DEL> Message Display
Hit
Hard Disk Type 47 RAM Area
For <FI> If Any Error
Wait
System Boot Up Num Lock
Numeric
Weitek Processor
Floppy Drive Seek At
system Boot Up Sequence
cyr Ix
Video
Processor Test
External Cache Memory
Internal Cache
Fast Gate A20 Option
Password Checking Option
ROM Shadow
ESC: Exit
I
F5: Old Values F6: BIOS Setup Defaults F7:Power-On Defaults
COOO,
't <- .j.
(msec)
:
500
:
Disabled
Enabled
:
Enabled
:
0:300
:
:'Enabled
:
On
Enabled
:
:
Absent
Boot
Enabled
:
:
A:, C:
Enabled
:
Enabled
:
Enabled
:
Setup
:
Enabled
32K:
--> :
Sel <CTRL>PU /PD: Modify Fl: Help F2 /F3 :Color
Inc ..
Adaptor ROM Shadow C800, 32K:
Adaptor ROM Shadow DODO, 32K:
Adaptor ROM Shadow D800, 32K:
Adaptor ROM Shadow EOOO, 32K:
Adaptor ROM Shadow E800, 32K:
System ROM Shadow FOOO, 64K: Enabled
Two Way or Direct Map
Hidden Refresh
Rights Reserved
All
Disabled
Disabled
Disabled
Disabled
Disabled
:
Two way
:
Enabled
I
"Write to CMOS and Exit (Y/N)?"
4.
Typing "N" and <Enter> returns you to the Main
Menu. Typing "Y" and <Enter> saves the system
parameters and the system reboots.
Use the arrow keys to move between items and to
2.
select values. Modify the selected fields using the
PgUp/PgDn keys. An explanation of <F> keys follows:
<Fl>:
"Help" gives options available for each item.
<F21'3>: Change color
<F5> : Get the old values. The user started the
current session with these values.
Page 14

20
Chapter 3
AMI
BIOS Setup
21
<F6>:
<F7>:
A short description of the screen items .follows:
Typematic Rate
Programming
Typematic Rate
Delay
Typematic Rate
Above 1 MB
Memory Test
Memory Test
Tick Sound
Hit <DEL>
Message Display
Hard Disk Type
47 Data Area
Load all options in the Advanced CMOS
Setup / Advanced Chipset Setup with the
BIOS Setup default values.
Load all options in the Advanced CMOS
Setup / Advanced Chipset Setup with the
Power-On default values.
Choose Enabled or Disabled. Enable this
option to adjust the keystroke repeat rate.
Choose how long after you press a key that a
character begins repeating.
Choose the rate a character keeps repeating.
Choose Enabled or Disabled. Enable this
option to invoke the POST memory routines
on the RAM above 1MB. Disable and BIOS
only checks the first 1MB of RAM.
Choose Enabled or Disabled. Enable this
option to turn on the "ticking" sound during
the memory test.
Choose Enabled or Disabled. Disable this
option to prevent "Hit <DEL>... " message
from appearing when system boots-up.
Data for user-definable disk types are stored
at 0:300 lower system RAM. If software
problems occur with this location, setting
option "DOS 1 KB" relocates the data to the
upper DOS shell.
Wait for FI if any
Error
System Boot Up
Num Lock
Numeric
Processor Test
Weitek
Processor
Floppy Drive
Seek at Boot
System Boot Up
Sequence
External Cache
Memory
Choose Enabled or Disabled. Enable this
option to display "Press <Fl> to continue"
when a POST non-fatal error occurs. Disable
this message to eliminate the need for a
response to a non-fatal error message.
Choose On or Off. On puts numeric keypad
in Num Lock mode at boot-up. Off puts this
keypad in arrow key mode at boot-up.
Choose Enabled or Disabled. If you insert an
80387DX or 87DLC math coprocessor, you
must choose "Enabled." If you do not insert
an 80387DX or 87DLC math coprocessor,
choose "Disabled." The default setting is
"Enabled. "
Choose Present or Absent. If you insert a
Weitek math coprocessor, you must choose
"Present." If you do not insert a Weitek
math coprocessor, choose "Absent." The
default setting is "Absent."
Choose Enabled or Disabled. "Disabled"
provides a fast boot and reduces the
possibility of damage to the heads.
The default setting first attempts to boot from
drive A: and then from hard disk C:. You
can reverse this sequence with "C: A:", but
then drive A: cannot boot directly.
Choose Enabled or Disabled. This option lets
you enable the 8K cache memory inside the
MXIC chipset. For better performance, make
sure you always choose "Enabled."
Page 15

22
Chapter 3
AMI BIOS Setup
23
Cyrix Internal
Cache
Fast Gate A20
Option
Password
Checking Option
II
I
III
Choose Enabled or Disabled. If you use
Cyrix 486DLC CPU, you must choose
"Enabled." If you use an 80386DX CPU, you
must choose "Disabled."
Choose Enabled or Disabled. This item lets
you use the GA20 from the chipset or the
keyboard controller (8742).
Choose Disabled, Setup, or Always. Use this
feature to prevent unauthorized system boot-
up or unauthorized use of BIOS Setup.
"Disabled "- (Default) Password prompt
does not appear when re-
booting the system.
"Always"-
"Setup"-
Each time the system boots
the password prompt appears.
Password prom pt only
appears if you attempt to
enter the Setup program.
a
Two Way or
Direct Map
Hidden Refresh
3.
After you have finished with the Advance CMOS Setup
program, press the <ESC> key and then follow screen
instructions to save or disregard your settings.
The internal 8K cache can operate under
either "Two Way Associate" or "Direct map"
cache methods. The default setting is "Two
Way" for better performance.
Choose Enabled or Disabled. Enable this
option to speed performance, for the CPU
does not often halt during the refresh cycle.
Video or Adaptor
ROM Shadow ROM to faster RAM. BIOS can then execute
System ROM If enabled and BIOS is present in
Shadow
ROM shadow copies BIOS code from slower
from RAM. These 32K segments can be
shadowed from ROM to 'RAM. BIOS is
shadowed in a 32K segment if it is enabled
and it has BIOS present.
this
segment, then system BIOS (64K) is
shadowed.
Page 16

24
Chapter 3
AMI BIOS Setup
25
suto
sino
CONFIGURATION WITH BIOS DEFAULTS
This Main Menu item loads the default system values for the
386DX/486DLC CPU. If the CMOS is corrupted the defaults
are loaded automatically. Choose this item and the
following message appears:
"Load BIOS Setup Default Values from ROM Table (Y/N)? N"
To use the BIOS defaults, change the prompt to "Y" and
press <Enter>. The following message appears:
"Default values loaded. Press any key to con tinue."
CONFIGURATION WITH POWER-ON DEFAULTS
Use this option as a diagnostic aid if your system behaves
erratically. Choose this item and the following message
appears:
"Load Power-On Default Values (Y/N)? N"
To use the Power-On defaults, change the prompt to "Y"and
press <Enter>. The following message appears:
CHANGE PASSWORD
This Main Menu item lets you configure the system so that a
password is required every time the system boots or an
attempt is made to enter the Setup program. The password
cannot be longer than 8 characters.
To use this option, check that the "Password Checking
Option" in the Advanced CMOS Setup is enabled.
Important: Keep a safe record of the new password. If you
forget or lose the password, the only way to access the system
is to discharge CMOS memory using connector J3 on the
357 ISA main board, or jumper JP2 on the 356 ISA
main board , and then using the default password <AMI>.
suto
WARNING:
DETECT HARD DISK
Do not use this
function.
"Default values loaded. Press any key to continue."
Page 17

26
Chapter 3
MR BIOS Setup
27
HARD DISK UTIliTY
This Main Menu item gives you three options for analyzing
and formatting a hard disk. The three options are:
• Hard Disk Format - performs a "low level" format of
the hard disk. Check with the hard drive
manufacturer to see if this option is required.
Auto Interleave - determines optimum interleave
•
factor before formatting the hard disk.
Media Analysis - analyzes each track of the hard drive .
•
Marks unusable tracks as "bad" to prevent future data
storage on those tracks.
WARNING!
Performing anyone of these options destroys all data
on the hard disk. You must back-up the hard disk
before performing any of these tests.
MR BIOS
When the setup program provided with the 486 ISA
mainboard is the MR BIOS from Microid Research, Enter
the Setup program as follows:
Summary
1.
MR BIOS (tm) Copyright (c) 1992, Microid Research Inc. Ver, V1.40-MXIC30
~ Clock Keyboard Floppy Fixed-Disk Boot-Seq More--->
CPU Type 386DX
CPU Rev 0308
CPU MHz 40
Math Uni t n/a
RAM Cache 8K
Shadow RAM ........•..... Enable
Memory-Base 640K
Memory-Extended 3200K
Memory-System 256K
Memory-Total 4096K
COM1 3F81 LPT1 378
COM2 2F8 LPT2 n/ a
COM3 n/a LPT3 n za
COM4 n/a LPT4 n/a
FlO to Record and Exit ~ to Select Horne End +-t-+Moves Cursor
Screen
Boot the system, and press <Esc> during the memory
test,
or
press cCtr l+Alt+Esc> anytime while the
computer is running. The Summary screen appears:
Floppy 0 1.2M[5.25]
Floppy 1 1.4M[3.5]
Floppy 2 None
Floppy 3 None
Fixed 80 121. 4M [47]
Fixed 81 _ None
Boot Sequence A, 1st
Anti-Virus Disable
Security .: ..........•... Disable
Keyboard PC/AT
NurnLock Off
Typemat ic 30. 0
Video-Primary V/EGA-Color
Video-Secondary n/a
2. The Summary screen is for viewing only. Nothing can
be changed here. To make configuration changes or
explore other Setup Utility screens, press the <Right
Arrow> key to move the cursor rightward on the
menu-line.
3. To exit Setup and boot the computer press <FIO>. All
configuration changes are recorded into CMOS
memory. To
bail-out
without storing any changes, (1)
press <Ctrl+Alt+Del>, or (2) turn off the computer.
Page 18

28
Chapter 3
MR
BIOS Setup
29
The following is a description of each field found on the
Summary Screen.
CPU Type
CPU MHz
CPU Rev
Math Unit
RAM Cache
Shadow RAM
Memory Base
Memory Extended
Memory System
Memory Total
COM1 (2,3,4)
LPT1 (2,3,4)
Floppy 0 (1,2,3)
Fixed 80 and 81
Boot Sequence
Anti-Virus
Security
Keyboard
Numlock
The system's CPU type.
Fastest operating frequency of the computer.
Model and revision code of the CPU
Type of numeric coprocessor.
Configured state of the cache at boot time.
Indicates if any Shadow RAM is enabled.
Amount of Base Memoty in working order.
Amount of Extended Memory in working order.
Amount of memory for system use.
Total amount of memory in system.
I/O addresses of serial ports in working order.
I/O addresses of parallel ports in working
order.
Floppy drives configured in system.
Size and Type set for fixed disk drives C: and D:
1st choice from which operating system boots.
State of the Anti-Virus feature that write protects
the Boot-Sector of the fixed disk.
State of the Password Security feature.
Type of keyboard identified during boot-up.
State of Numlock key at boot-up.
Dock Setup
The system board contains a battery powered Real time
Clock (RTC) that maintains the time and date when the
computer is shut off.
MR BIOS (tm) Copyright (c) 1992, Microid Research Inc. Ver, V1.40-MXIC30
summary_ Keyboard
Floppy
Fixed-Disk
Boot-Seq More--->
I
\
FlO
to Record
Display Format
Display Format
Time hh rrnmisst........
Date mm/dd/yyyy
Daylight
and Exit
Choose United States or International format for
displaying clock settings.
Time
Date
Daylight Savings
Use the cursor to set the time.
Use the cursor to set the date.
Enable this option to automatically adjust the
computer to daylight savings time' twice a year.
.......
........
Savings
.J
..........
to Select Home
United States
11045,00 P
02/20/1993
-
Enable
End
+-.j.~
Moves
Cursor
Typematic
Keyboard character repeat rate
10
characters per
second.
Video Primary Video Display Adapter in use when control is
passed to an Operating System at boot-time.
Video Secondary Indicates the presence of a second Video Adapter.
Page 19

30
Chapter 3
MR
BIOS Setup
31
Keyboard Setup
Power up settings for the NumLock key and keyboard
Typematic functions are set in this screen.
MR BIOS (tm)
Summary
FlO
Powerup NumLock
Typematic Repeat
Rate
Delay Before Repeat Choose a delay that lets you release a key
copyright (c) 1992, Microid Research Inc_ Ver: Vl_40-MXIC30
Boot-Seq
Disable
cps
30.0
sec
0.50
End t-.J.-t Moves Cursor
to
Clock
Powerup NumLock
Typematio Repeat
Delay
Record
IIII!II
Before
and Exit
Floppy
Repeat
..J
to
Fixed-Disk
................
..'......
Rate
..
.........
Select
Home
Choose Off for cursor con trol or On for
numeric entry.
Choose the rate a key repeats after holding it
down.
before it begins to repeat.
More-
->
F1QjJfrY
Setup
Configure the system for up to four diskette drives.
MR BIOS (tm) Copyright (c) 1992, Microid Research Inc_ Ver: Vl_40-MXIC30
Summary Clock Keyboard
Fixed-Disk Boot-Seq More--->
-
I
FI0 to Record and
Floppy 0 (1,2,3) Specify each drive from the following list:
Step Rate
Exit
360K 5.25-inch low density
720K 3.5-inch low density
1.2M 5.25-inch high density
l.4M 3.5-inch high density
2.8M 3.5-inch extra density
Choose a track-to-track speed of the recording
heads - Fast for improved performance on
modern equipment, - Slow for backward
compatibility with original PC standards.
Drive Configuration
Floppy
Floppy 0
Floppy
Floppy
Floppy
Step-Rate
.........
.........
1
..............
2
..............
3
.............
..J
to Select Home End
5_25
3_5·
I
L2M
L4M
None
None
Fast
t-.J.-t Moves
Cursor
Page 20

32
Chapter 3
MR BIOS Setup
33
Fixed Disk Setup
This screen provides two utilities: the Drive Definition
utility and the Low-Level Format utility.
MR BIOS (tm) copyright (c) 1992, Microid Research Inc. Ver, V1.40-MXIC30
Summary Clock Keyboard Floppy ~ Boot-Seq More--->
I
I
Fixed Disk 80 (C,)
Size ....•.. 42.5M
Type 17
Cylinders 977
Heads 5
Precomp 300
Landing 977
Sectors 17
Translate No
Anti-Virus Yes
FI0 to Record and ExitJto Select Home End +-l~Moves Cursor
Fixed Disk 80 (C:)
Fixed Disk 81 (D:)
(Low Level) Format
Drive (C/D)
Start Cyl
Final Cyl ~
Interleave
Ready (y
In) ....
Specify the parameters for each drive. Refer to
the documentation furnished with the drive.
See Appendix D for drive types with built-in
parameter table. Drive types
manually enter custom parameters to describe
any drive you may have now or in the
Low-Level Format
Warning: This utility can erase "the entire
contents of your fixed disk. This procedure is
usually performed in the factory and you
generally need not be concerned with it. Unless
you are absolutely certain that your fixed disk
lacks this format, you should never use this
utility.
Fixed Disk 81 (D,)
Size None
Type None
*
Cylinders nla
Heads nla
Precomp nla
*
Landing nla
Sectors nla
Translate ..... nla
46
&
47 let you
futu~e.
Boot Sequence Setup
This screen provides three system startup functions: Boot
Sequence, Memory Priming, and Cold-Boot Delay.
MR BIOS (tm) Copyright (c) 1992, Microid Research Inc. Ver, Vl.40-MXIC30
Summary Clock Keyboard Floppy Fixed-Disk __ More--->
I
FIO to Record and ExitJto Select Home End +-l~ Moves Cursor
Boot Sequence Specify the order your disk drives are accessed
Memory Priming
Cold-Boot Delay
Boot Sequence C, 1st, A, 2nd
Memory Priming Full Test
Cold-Boot Delay 3 Sec
Cold-Boot ~ey Sequence
J
ESC Boot to Setup Utility
Warm-Boot Key Sequence
CTRL ALT DEL Standard Warm Restart
CTRL ALT
CTRL ALT ESC Boot to Setup Utility
J
Boot to Screen Prompt
Boot to Screen Prompt
when loading the Operating System.
Specify the memory test that executes during
power-up, either normal or fast mode. The Full
Test should normally be selected.
Provides additional power-up time required by
some slow mechanical devices. Unless you have
this type of problem, disable the delay by
selecting None.
Page 21

34
Chapter 3
MR
BIOS Setup
35
Security Setup
This utility lets you: arm security and establish a password,
Disarm Security (eliminate password), change the Security
option, and change the password.
MR BIOS (cm) copyright (c) 1992, Microid Research Inc. Ver: V1.40-MXIC30
More_
<-
Record and Exit
to
F10
Setup Only
Power-up /Setup
End
Shadow
f-t-+ Moves
First-Aid
Security
Speed
................ Disable
Select
J
to
Cache
Home
Prevents unauthorized access to the Setup Utility.
Access to other Setup menus is denied unless a
valid Security code is entered at this prompt.
Restricts Setup utility access as well as
unauthorized entry to the computer after power-
up. Access is denied unless a valid Security code
is entered at this prompt.
Chipset
Cursor
First-Aid Setup
The options in this screen enhance or correct the operation
of certain software applications.
MR BIOS (tm) Copyright (c) 1992, Microid Research Inc. Ver: V1.40-MXIC30
<-
-More securityM.·R' Speed
Certain PC design advances may reveal/cause difficulties with existingl
software. These special options may correct/enhance system operation.
I
Novell Keyboard Management No
Prevent Math Unit Access No
F10 to Record and ExitJto Select Home End f-t-+Moves CUrsor
Novell Keyboard
Management
If the keyboard is sluggish while using a Novell
product, set this field to a non-zero value from 1
Cache
to 30. Use the smallest' number that results
satisfactory performance. Otherwise select No.
Prevent Math Unit
Access
Set this field to the default value No. Note that if
you choose Yes, you must not use a math
coprocessor.
Shadow Chipset
I
10
Page 22

36
Chapter 3
MR
BIOS Setup
37
Speed Setup
Configure the operating speed of the CPU with this screen.
Your selection is put into effect each time the system boots.
copyright (c) 1992 Microid Research Inc- Ver, V1.40-MXIC30
<-
-More
FlO
m
to
High
Low
Security
First-Aid
Cache
Shadow
•••
.-
....
Hot-Key
.....
.,.
Select
-.-
Sequence
High Speed
,
system Speed
Runtime
CTRL ALT -
CTRL ALT +
Record and Exit
.J
to
This maximizes system performance, and is the
usual choice.
This reduces performance to simulate original
slower PCs.
High
.....
Low speed
End ~.j.~Moves
Home
MR BIOS (t )
Chipset
Cursor
»)
Cache Setup
This screen lets you enable/disable your system's cache.
MR BIOS (tm) Copyright (c) 1992. Microid Research Inc Ver- VI 40-MXIC30
Note:
<---More
FI0 to
Security
Record and
First-Aid
System
Cache
Cache Size
Runtime Hot-Key Sequence
CTRL ALT SHIFT
CTRL
ALT SHIFT
Exit
The values shoum above are default values.
System Cache Choose Enable or Disable to enable/disable
the chipset's internal cache controller. In
general, you should use the default value
Enable.
Cache Size The BIOS automatically detects cache size.
Speed
...............
.
....................
.....
-
......
+
.J
Select
to
BBI
Enable
8K
Disable Cache
Enable
Cache
Home End
~.j.~Moves
Shadow Chipset
Cursor
Note:
You can change system speed during normal run time
<Ctrl+Alt+Plus>
for High speed, or
<Ctrl+Alt+Minus>
speed.
fly
pressing
for Low
)
Page 23

38
Chapter 3
~R
BIOS Setup
39
Shadow RAM Setup
Shadow RAM copies ROM into faster main memory. BIOS
and VGA adapter ROM demonstrates significant
performance gains when shadowed. Note that unshadowed
segments display
MR BIOS (tm) Copyright (c) 1992, Microid Research Inc. Ver, Vl.40-MXIC30
<---More
Shadow-RAM
Shadow-RAM
*"*Best
.
Default
FlO
FOOOsystem
Security
Disabled, Vacant
Enabled,
Performance is
SYSTEM
FOOO
·
EOOO ADAPTER
·
WOO ADAPTER
·
ADAPTER
DBOO
·
0400 ADAPTER
·
ADAPTER
0000
·
CCOO ADAPTER
·
CBOO ADAPTER
·
VIDEO
C400
·
VIDEO
COOO
·
to Record
The system BIOS occupies this 64K segment. For
best results always enable WP-Shadow.
CSOO-EOOO
Adapter
COOO&C400
Video
If present, adapter ROMs for non-video devices
are present in these segments.
Video Adapter ROMs usually occupy both of these
16K segments. Enable for best performance.
Vacant
First-Aid Speed Cache
usually obtained by Shadowing indicated
.............
...............
•••••• 0 ••••••••
............... .Vacant
...............
...............
...............
...............
..............
..............
and
ExitJto
if no Adapter ROM is present.
Found
No ROM
=
Read-Write WP=Write-Protect
RW
=
WP-Shadow
WP-Shadow
WP-Shadow
Select Home
Vacant
Vacant
Vacant
Vacant
Vacant
Vacant
ROM In
End
.EllUl
FOOO VMB User Info
I
BIOS FC02-FFFF
UTILS
POST F74C-FB54
SETUP FlC6-F74B
AVAIL,
I
+-.j.~Moves
Chipset
ROM is Present
=
FB55-FCOI
FOOO-FB54
Cursor
ROM"s**
Otipset Setup
Technical core-logic functions of the mainboard's chipset
ma~~ged .here. Adjust these settings I are
famlhar With the mainboard's chi on y if you are
h .
t ese Items at their default settings.
MR BIOS (tm) Copyright (c) 1992 M'
<-
-More
Security
First-Aid
1cr01d
Speed
Research
Cache
rpser,
Inc.
Otherwise, leave
Ver,
Vl.40-MXIC30
Shadow
-.
MEMORY
TIMING
Memory
Refresh
Refresh
AT-BUS
AT-Bus
AT-Bus
Type
Peri~d"""" .
Method
TIMING
Clock
Waits
...........
..........
..........
..............
·
I
·
·
·
·
I
FlO
to
Record
and
Exit
J
to
Select
~portant:
IthISrecobmmended that you always use the %efault ::;::l~
s own a ove.
For the 356/357 main board to0erate
Home
.....
-"
-
End
..
.
Hidden
B.O
Normal
BO
nS
15
nS
MHz
+-HMoves
Cursor
FOOOUMB
User Info
This provides a view-only summary of the Upper
Memory Block space. You need to furnish this
information to your Memory Manager software
to create a UMB in the FOOOBIOS region.
Page 24

40
Appendix A
AMI BIOS Hard
The AMI BIOS supports the following hard disk types.
Type
Cylinders Heads WPrec LZone
1 306 4 128 305 17
2
3 615 6
4
5
6 615 4
7 462 8 256
8
9 900 15
10 820 3
11 855
12
13
14
16 612 4 0 663
17 977 5
18
19 1024 7 512
20
615 4 300 615 17 20
940
940
733
855 7 65535 855 17
306
733 7 65535 733 17 43
977 7
733 5
Disk Types
Sect
300
8
6 512
5
5
8 128 319
512
65535
65535 733 17 30
65535 901 17
65535 820 17 20
65535
300 977 17
65535 977 17
300
615
940
940 17
615 17 20
511
855 17 35
1023
732
17
17
17 31
17
17
17
17 30
Capacity (MB)
10
31
62
47
112
50
20
20
41
57
60
Hard disk Types
41
Type
29
30
31
32
33
}I
)
34
35
36
37
38
39
40
41
42
43
44
45
46
21
22
23
24
25
26
27
28
Cylinders
733
733
306
925
925
754
754
699
823
918
lO24
1024
1024
612
1024
1024
615
987
987
820
977
981
830
830
917
000
Heads
10
11
15
5
2
9
8
8
3
7
6
5
5
7
10
15
00
5
4
7
9
7
11
7
7
7
WPrec
300
300
0
0
65535
754
65535
756
65535
918
65535
65535
1024
128
65535
512
128
987
987
820
977
981
512
65535
65535
000
LZone
336
925
925
754
754
699
823
918
1024
1024
1024
612
1024
1024
128
128
987
820
977
981
830
830
918
000
732
733
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
Sect
17
17
17
17
17
17
17
17
17
Capacity (MB)
43
30
lO
54
69
44
69
41
68
53
94
128
43
10
77
68
41
25
57
41
41
41
48
69
114
152
Page 25

42
AMI BIOS
Error Codes
43
Appendix B
AMI BIOS Error Codes
This appendix describes the AMI BIOS POST Error Codes.
Every time you power on the system, the POST (Power On
Self Test) diagnostic routines check to make sure your system
is running properly. During boot-up, the POST communicate
errors to you as either a series of beeps, or as messages on
the display screen.
Fatal errors do not let the system complete boot-up, and are
usually signaled as a series of beeps, since your display may
not come on. Non-fatal errors allow boot-up to continue, and
error messages appear on the screen.
BEEP ERROR CODES
These codes are emitted as a series of audible beeps.
Error Codes, except for number 8, are fatal errors. If your
system does not boot-up and starts beeping, write down the
number of beeps you hear and consult an authorized repair
person.
Beep Error Codes and their meanings
Number of
Beeps
1
2
3
)
,
4
5
6
7
8
9
10
Refresh Failure
Parity Error
Base 64 KB Memory Failure
Timer Not Operational
Processor Error
8042 - Gate A20 Failure
Processor Exception Interrupt Error
Display Memory Read/Write Error
ROM Checksum Error
CMOS Shutdown Register Read/Write Error
Error Message
follow:
Ail
Beep
Page 26

44
Appendix B
AMI BIOS
Error Codes
45
ERROR MESSAGES
Non-fatal Error Messages usually appear on the screen as
follows:
ERROR Message Line I
ERROR Message Line 2
Press <FI> to RESUME
.After you no e . A list of Error
allow the system to proceed WIth boot-up.
Messages follows:
Message
CH-2 Timer Error
INTR #1 Error
INTR #2 Error
CMOS Battery State Low
CMOS Checksum Failure
CMOS System Options
Not Set
CMOS Display Type
Mismatch
Display Switch Not
Proper
t the Error Message, then press the <Fl> key to
Action
Consult an authorized repair person
Consult an authorized repair person
Consult an authorized repair person
Replace the battery
Run the BIOS SETUP program
Run the BIOS SETUP program
Run the BIOS SETUP program
Properly set the video switch on the
main board to monochrome or color
Message
Keyboard Is
Locked ... Unlock It
Keyboard Error
~/Interface Error
CMOS Memory Size
Mismatch
FDD Controller Failure
HDD Controller Failure
) C: Drive Error
D: Drive Error
C: Drive Failure
D: Drive Failure
CMOS Time&Date Not
Set
Cache Memory Bad, Do
Not Enable Cache!
Action
Unlock the keyboard lock to
continue boot-up
Make Sure you have the AMI
keyboard BIOS installed, or set the
Standard CMOS Setup's "Keyboard"
option to "Not Installed."
Consult an authorized repair person
Run the BIOS SETUP program
Check all connections after the
system is powered off
Check all connections after the
system is powered off
Check Standard CMOS Setup to see if
correct hard disk is. selected
Check Standard CMOS Setup to see if
correct hard disk is selected
Consult an authorized repair person
Consult an authorized repair person
Check Standard CMOS Setup to see if
correct date and time are selected
Consult an authorized repair person
8042 Gate-A20 Error
))
Address Line Short!
Replace the 8042 chip
Consult an authorized repair person
Page 27

46
Appendix B
AMI BIOS
Error Codes
47
Message
DMA#2 Error
DMA #1 Error
DMA Error
No ROM BASIC
Diskette Boot Failure
Invalid Boot Diskette
On Board Parity Error
Off Board Parity Error
Parity Error
????
Action
Consult an authorized repair person
Consult an authorized repair person
Consult an authorized repair person
Consult-:ln authorized repair person
Use another boot disk
Use another boot disk
Use memory diagnostic software,
such as AMIDIAG, to find and
correct memory problems.
Use memory diagnostic software,
such as AMIDIAG, to find and
correct memory problems.
Use memory diagnostic software,
such as AMIDIAG, to find and
correct memory problems.
HARD DISK UTILITY ERROR MESSAGES
The following error messages may appear during the Hard
Disk Utility routines of the BIOS Setup program. The first
four messages may appear during initialization; the rest
may appear during operations.
Message
No Hard Disk Installed
FATAL ERROR Bad Hard
Disk
Hard Disk Controller
Failure
C: (D:) Hard Disk Failure
Undefined Error -
Command Aborted
Address Mark Not Found
Requested Sector Not
Found
Check if hard disk is on the system
Check all cables and power
connections
Check that the controller is properly
inserted in the BUS slot
Check all cables and power
connections
Consult an authorized repair person
Consult an authorized repair person
Consult an authorized repair person
Action
Reset Failed
Drive Parameter Activity
Failed
Bad Sector Flag Detected
Bad ECC on Disk Read
Consult an authorized repair person
Check to see if the proper drive type
is selected in the Standard CMOS
Setup
Consult an authorized repair person
Consult an authorized repair person
))
Page 28

48
Appendix B '
49
Message
ECC Corrected Data Error
Controller Has Failed
Seek Operation Failed
Attachment Failed to
Respond
Drive Not Ready
Write Fault on Selected
Drive
Action
Consult an authorized repair person
Consult an authorized repair person
Consult an authorized repair person
Consult an authorized repair person
Consult an authorized repair person
Consult an authorized repair person
Appendix
MR
Type
1
2
3 32.1 615 6
4 65.5
5
6
7 32.2 462
)
}
8
9 117.5 900
10
11 37.2 855
12 52.1 855 7
13
14 44.7 733 7
15
16
17
The
Capacity
MR BIOS
BIOS
(MB)
10.7 306
21.4
49.1 940
21.4
31.9
21.4
21.3
0.0 0 0
21.3
42.5 977
Fixed Disk Table
supports the following
Cylinders Heads WPrec
615 4 300 615 17
940
615 4
733 5
820 3
306
612 4 0 663 17
C
fixed
disk types.
LZone
4 128
300
8 512
6 512
None
8 256
None
15
None
None
5
None
None
8 128 319
None
None
5 300 977 17
305
615
940
940 17
615 17
511
733 17
901 17
820 17
855 17
855 17
733 17
Sect
17
17
17
17
17
0 0
18 59.5 977 7
19
20
62.4
31.9
1024 7
733
None
512
5
300
977 17
1023 17
732 17
Page 29

50
Appendix C
51
Type
21
22
23
24
25
26
27
28
29
30
31
Capacity (MB)
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
Cylinders
44.7
21.9
10.7
42.9
72.5
104.9
44.6
71.3
71.6
159.8
98.0
133.7
44.6
10.7
80.2
71.3
42.8
71.6
42.2
42.8
42.5
42.7
71.6
72.2
119.7
User programmable
User programmable
733
733
306
805
925
776
1024
1024
823
1224
1024
1024
1024
612
1024
1024
615
823
809
820
977
981
823
830
917
Heads
7
5
4
4
9
8
5
8
10
15
11
15
5
2
9
8
8
10
6
6
5
5
7
10
15
WPrec
300
300
0
None
None
None
512
None
None
None
None
None
None
128
None
None
None
None
512
128
256
128
512
None
None
LZone
732
733
336
805
925
776
1024
1023
823
1223
823
1024
1024
612
1024
1024
615
823
809
820
977
981
823
830
917
Sect
17
17
17
26
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
Appendix
MR
This appendix describes the MR BIOS Error Codes.
Diagnostic Port SOH POST-CODES
OO/OOH
01/01H
02/02H
03/03H
04/04H
05/05H
06/06H
07/07H
08/08H
09/09H
10/0AH
ll/OBH
12/0CH
13/0DH
14/0EH
15/0m
19/13H
16/10H
17/11H
18/12H
Cold Boot Commences (Not seen with warm-boot).
Hook 00. OEM specific, typically resets chipset to default.
Disable critical I/O: 6845s, 8237s, 7675, and parity latches.
BIOS checksum test.
Page register test. (Ports 81-8F).
8042 (Keyboard Controller) Self test.
Gang Port Init: 8237
m/s.
HOOK 01. OEM specific, typically disables cache, shadow.
Refresh toggle test (PORTB).
Pattern test master/slave 8237s, eight 16-bit regs each.
Base 64K memory test.
Pattern test master/slave 8259 mask regs.
8259 / IRQ test, purge powerup ints.
8254 channel-O test and initialization
8254 channel-2 toggle test, test speaker circuitry.
RTC tests/inits: Init REG-B, write/readback NVRAM,
test.
HOOK 02. OEM specific, select 8MHz bus.
Video initialization
CMOs Checksum test.
Signon msg. Accepts KB BAT, perform 1st try KB init, cold-
boot delay.
BIOS Error
mz's,
8254 ch2/1, RTC REG F/A, 8259
D
Codes
PIE
Page 30

Appendix
D
MR BIOS
Error Codes
53
52
20/14H
21/15H
22/16H
23/17H
24/18H
25/19H
26/1AH
27/1BH
28/1CH
I
i \
29/1DH
30/1EH
31/1FH
32/20H
33/21H
34/22H
35/23H
36/24H
40/28H
37/25H
38/26H
39/27H
41/29H
42/2AH
43/2BH
\
44/2CH
45/2DH
46/2EH
47/2FH
Size/Test base memory (low 64K already done)
Perform 2nd try KB init, if necessary.
HOOK 03. OEM specific. Size/Test cache.
Test A20 gate, off then on.
Size/Test extended memory.
HOOK 04 and Size/Test system memory ("special" OEM
memory).
Test RTC Update-In-Progress- and validate time.
Serial port determination, off-board/ on-board.
Parallel port determination, off-board/ on-board.
Coprocessor determination/initialization
Floppy controller test/determination, cmos validation.
Fixed Disk con troller test/determination, cmos validation.
Rigorous CMOS parameter validation display other config.
changes
Front-Panel lock check, wait for user to acknowledge
errors.
Set NumLock, Password Security Trap, dispatch to Setup-
Utility.
HOOK
Set typematic rate.
HOOK 06. OEM
turbo.
Floppy subsystem initialization.
Fixed subsystem initialization.
ACK errors, set primary adapter video mode.
Disable A20-gate, set low stack, install C800-0EOOOROMs.
ACK errors, set video mode, set DOS time variables from
RTC.
os.
OEM specific.
specific,
Enable parity checking and NMI.
Install EOOOROM.
ACK errors.
HOOK 07. OEM specifIc. Log-in EMS (if built-in).
Pass control to INT19 (boot disk).
typically enables shadow, cache,
BEEP CODES and MESSAGES
Beep Codes - L=low tone and H - high to)Jne
Port 80H Beep Code
03/03H
04/04H
OS/OSH
07/07H LH-HHL
08/08H
08/08H
10/0AH
10/0AH
10/0AH
10/0AH
10/0AH
10/0AH
10/0AH
11/0BH
11/0BH
12/OCH
12/OCH
12/OCH
12/0CH
LH-LLL ROM-BIOS Checksum Failure
LH-HLL DMA Page Register Failure
LH-LHL Keyboard Controller Self test Failure
LH-LLH
LH-HLH
LH-LLLL Memory Bank 0 Pattern Test Failure
LH-HLLL
LH-LHLL Memory Bank 0 Parity Error
LH-HHLL
LH-LLHL Memory Bank 0 Address Bus Failure
LH-HLHL
LH-LHHL
LH-HHHL Master 82S9 (Port 21) Failure
LH-LLLH Slave 8259 (Port 21) Failure
LH-HLLH Master 8259 (Port 20) Interrupt Address
LH-LHLH Slave 8259 (Port 20) Interrupt Address
LH-HHLH
LH-LLHH
Error Message
Memory Refresh Circuitry Failure
Master (16 bit) DMA Controller Failure
Slave (8 bit) DMA Controller Failure
Memory Bank 0 Parity Circuit Failure
Memory Bank 0 Data Bus Failure
Memory Bank 0 Block Access Read Failure
~~mory Bank 0 Block Access Read/Write
Failure
Error
Error
8259 (Port 20/ AO) Interrupt Address Error
Master 8259 (Port 20) Stuck Interrupt Error -
Page 31

54
Appendix D
MR BIOS
Error Codes
55
Port SOH
12/0CH
12/0CH
13/0DH
14/0EH
14/0EH
15/0FH
15/0FH
16/10H
17/11H
17/11H
18/12H
20/14H
24/18H
25/19H
20/14H
24/18H
25/19H
Beep Code
LH-HLHH
LH-LHHH
LH-HHHH
LH-ILLLH
LH-HLLLH
LH-LHLLH
LH-HHLLH
LH-LLHLH
(None)
(None)
LH-HLHLH
LH-LHHLH
LH-HHHLH
Error Message
Slave 8259 (Port 20) Stuck Interrupt Error
System Timer 8254 CHO/IRQO Interrupt
Failure
8254 Channel 0 (System Timer) Failure
8254 Channel 2 (Speaker) Failure
8254 OUT2 (Speaker Detect) Failure
CMOS RAM Read/Write Test Failure
RTC Periodic Interrupt/IRQ8 Failure
Video ROM Checksum Failure at Address
xxxx
Mono
Mono Card Memory Address Line Error at
Address xxxx
Card
Memory Error At Address xxxx
Color Graphics Card Memory Error at
Address xxxx
Color Graphics Card Address Line Error at
Address xxxx
Real Time Clock (RTC) battery is
Discharged
Battery Backed Memory (CMOS) is Corrupt
Keyboard Controller Failure
Memory Parity Error
I/O Channel Error
Port SOH
20/14H
24/18H
25/19H
18/12H
21/15H
23/17H
23/17H
23/17H
26/1AH
26/1AH
30/1EH
31/1FH
Beep Code
(None)
(None)
LH-LLLHH
LH-HLLHH
(None)
LH-LHLHH
(None)
(None)
(None)
Error Message
RAM Pattern Test Failed at xxxx
Parity Circuit Failure in Bank xxxx
Data Bus Test Failed: Address xxxx
Address Line Test Failed at xxxx
Block Access Read Failure at Address xxxx
Block Access Read/Write Failure: Address
xxxx
Banks Decode to Same Location: xxxx and
yyyy
Keyboard Error - Stuck Key
Keyboard Failure or no Keyboard Present
A20 Test Failure Due to 8042 Timeout
A20 Gate Stuck in Disabled State (A20 0)
A20 Gate Stuck in Asserted State (A20
Follows CPU)
Real Time Clock (RTC) is Not Updating
Real Time Clock (RTC) Settings are
Invalid
Diskette CMOS Configuration is Invalid
Diskette Controller Failure
Diskette Drive A: Failure
Diskette Drive B: Failure
Fixed Disk CMOS Configuration is Invalid
Fixed Disk C: (80) Failure
Fixed Disk D: (81) Failure
Please Wait for Fixed Disk to Spin Up
Page 32

56
Port SOH
32/20H
33/21H
41/29H
Beep Code
(None)
(None)
(None)
Appendix D
Error Message
Fixed Disk Configuration Change
Diskette Configuration Change
Serial Port Configuration Change
Parallel Port Conflguration Change
Video Configuration Change
Memory Configuration Change .
Numeric Coprocessor ConflguratlOn
Change
System Key is in Locked position - Turn
Key to Unlocked position
Adapter ROM Checksum Failure at
Address xxxx
Appendix E
Technical Reference
This appendix offers technical information relevant to the
356/357 ISA mainboard.
110Address Map
The I/O Address Map is a map of the mainboard's memory.
Address
00-IF DMA Controller #1, DMA, 8237A-5, 8-bit devices
20-3F
40-5F
60,64 Keyboard Controller (8742)
61
70, 71 Clock/calendar (146818)
Programmable Interrupt Controller #1, 8259A PIC
Timer/Counter (8254)
On-board testing registers
57
Device
70 bit 7 NMI Mask
78
80-9F
AO-BF
CO-DF DMA Controller #2, DMA, 8237A-5, 16-bit pieces
FO
Fl
F8-FF Math coprocessor
On-board test stimulus register
DMA Page Register (74LS612)
Programmable Interrupt Controller #2, 8259A PIC
Clears the busy signal of the math coprocessor
Reset the math coprocessor
Page 33

58
Interrupt Controllers
The interrupt lines are shown in the table below:
Appendix E
Priority
Source
0 Time channel 0 Master PIC, Interrupt 0
1 Keyboard
Slave PIC Master PIC, Interrupt 2
2
3 Clock/ calendar,
8-bit slot, IRQ9
4
5
9
10
11
12
13
14
16-bit slot, IRQI0
16-bit slot, IRQll
6
Ifi-bit slot, IRQ12
7
8 Math
IRQ13
16-bit slot, IRQ14
16-bit slot, IRQ15
8-bit slot, IRQ3, serial port
8-bit slot, IRQ4, serial port
8-bit slot, IRQ5, printer port Master PIC, Interrupt 5
8-bit slot, IRQ6, Flexible disk
port
Controller
IRQ8 ..
coprocessor error,
Destination
Master PIC, Interrupt 1
Slave PIC, Interrupt 0
Slave PIC, Interrupt 1
Slave PIC, Interrupt 2
Slave PIC, Interrupt 3
Slave PIC, Interrupt 4
Slave PIC, Interrupt 5
Slave PIC, Interrupt 6
Slave PIC, Interrupt 7
Master PIC, Interrupt 3
Master PIC, Interrupt 4
Master PIC, Interrupt 6
15
8-bit slot, IRQ3, printer port
Master PIC, Interrupt 7
Page 34