USER’S
MANUAL
PC-420 EMBEDDED CPU CARD
OPERATION MANUAL
COPYRIGHT NOTICE
This operation manual is meant to assist both Embedded Computer manufacturers and end users in installing and setting up the system. The information contained in this document is subject to change without any notice.
This manual is copyrighted 1995. You may not reproduce or transmit in any
form or by any means, electronic or mechanical, including photo-copying and
recording.
ACKNOWLEDGEMENTS
All trademarks and registered trademarks mentioned herein are the property of
their respective owners.
Copyright Notice
Contents
TABLE OF CONTENTS
CHAPTER 1 INTRODUCTION
1-1 About This Manual .............................................. 1-2
1-2 System Specification ............................................. 1-3
1-3 Safety Precautions ..….......................................... 1-6
CHAPTER 2 HARDWARE CONFIGURATION
2-1 Jumper & Connector Quick Reference Table ........ 2-2
2-2 Component Locations ......................................… 2-3
2-3 How to Set Jumpers ............................................. 2-4
2-4 Hard Disk Driver LED ......................................... 2-6
2-5 Turbo LED ......................................................… 2-6
2-6 CPU Clock Selection ........................................... 2-6
2-7 COM2 For RS-232/422/485 Selection ..............… 2-7
2-8 Reset Connector .............................................…. 2-8
2-9 Power LED & KeyLock Connector ..................... 2-8
2-10 CPU Voltage Selection ...................................... 2-8
2-11 Green Function Switch Connector .................…. 2-9
2-12 Cache Size Selection ......................................... 2-9
2-13 CPU Type Selection .......................................... 2-10
2-14 Hard Disk Drive Connector ............................... 2-12
2-15 Floppy Disk Drive Connector ............................ 2-13
2-16 Printer Connector ............................................... 2-14
2-17 External Speaker Connector ............................... 2-15
2-18 COM1 Connector .............................................. 2-15
2-19 COM2 Connector .............................................. 2-16
2-20 Keyboard Connector .......................................... 2-16
2-21 External Keyboard Connector ............................ 2-17
2-22 Power Connector ..........................................…. 2-17
2-23 Memory Installing ...........…............................... 2-18
CHAPTER 3 WATCHDOG TIMER CONFIGURATION
3-1 Watchdog Timer ................................................. 3-2
Contents
CHAPTER 4 GREEN PC FUNCTION
4-1 Power Saving Block Diagram .............................. 4-2
4-2 CPU Doze Mode ................................................. 4-2
4-3 System Standby Mode ......................................... 4-2
4-4 System Suspend Mode ........................................ 4-3
CHAPTER 5 AWARD BIOS SETUP
5-1 Introduction ........................................................ 5-2
5-2 Entering Setup ..................................................... 5-3
5-3 The Standard CMOS Setup Menu ....................... 5-4
5-4 The BIOS Features Setup .................................... 5-8
5-5 Chipset Feature Setup .......................................... 5-11
5-6 Power Management Setup ................................... 5-12
5-7 Load BIOS Defaults ............................................ 5-14
5-8 Load Setup Defaults ...................................…….. 5-14
5-9 Password Setting ............................................…. 5-15
5-10 IDE HDD Auto Detection ................................. 5-16
5-11 Save Setup ........................................................ 5-19
APPENDIX A EXPANSION BUS
PC-104 Connector Pin Assignment ................................. A-2
ISA Bus Pin Assignment ...........................................….. A-3
APPENDIX B TECHNICAL SUMMARY
Interrupt Map ................................................................. B-2
RTC & CMOS RAM Map .............................................. B-3
Timer & DMA Channels Map ........................................ B-4
I/O & Memory Map ....................................................... B-5
APPENDIX C TROUBLE SHOOTING
Trouble Shooting for Error Messages ............................. C-2
Trouble Shooting for POST Code ................................. C-5
Contents
INTRODUCTION
This chapter gives you the information for PC-420. It also outlines
the System specification.
Sections include:
z About This Manual
z System Specifications
z Safety precautions
Experienced users can skip to chapter 2 on page 2-1
for Quick Start.
CHAPTER
1
Page:1-1
Chapter 1 Introduction
1-1. ABOUT THIS MANUAL
Thank you for purchasing our PC-420 Embedded CPU Card, PC / AT
compatible. The PC-420 provides faster processing speed, greater expandibility and can handle more task than before. This manual is designed to assist
you how to install and set up the system. It contents five chapters. The user can
apply this manual for configuration according to the following chapters :
Chapter 1 Introduction
This chapter introduces you the background of this manual, and the specification for this system. Final in this chapter will indicate you how to avoid the
damages for this Embedded CPU Card.
Chapter 2 Hardware Configuration
This chapter outlines the components locations and their functions. In the end
of this chapter, you will know how to set jumper and how to configure this
card to meet your own needs.
Chapter 3 Watchdog-Timer Configuration
Helpful informations that inform you the proper installation of the Watchdogtimer.
Chapter 4 Green PC Function
This chapter explain the Green PC functions concisely.
Chapter 5 Award BIOS Setup
This chapter indicate you how to set up the BIOS configurations.
Appendix A Expansion Bus
This Appendix introduce you the expansion bus for PC-104 and ISA BUS
Appendix B Technical Summary
This section gives you the information about the Technical maps.
Appendix C Trouble Shooting
This section outlines the errors and offer you the methods to solve the
problems.
Page: 1-2
PC-420 USER‘S MANUAL
1-2. SYSTEM SPECIFICATION
zzzz
CPU :
Intel, AMD, Cyrix, Ti, SGS, UMC
486SX / DX / DX2 / DX4 / OVER DRIVER / 5x86.
168pin PGA socket.
25 / 33 / 40 / 50 / 66 / 80 / 100 / 120 / 133MHz clock generator.
3.3V / 5V voltage regulator.
zzzz
MEMORY :
Up to 64MB DRAM.
Two 72pin SIMM socket on board.
zzzz
CACHE :
L1 Cache (depended on CPU type).
L2 Cache 128K / 256K / 512K.
zzzz
REAL-TIME CLOCK / CALENDAR :
CMOS data back up from BIOS set or BIOS default.
Dallas DS 12887 Real Time Clock.
Guaranty battery 10 years.
zzzz
BIOS :
Award, Flash BIOS for plug & play functi on.
Easy update 128KB flash EEPROM.
Support Green Function .
Support S/IO Setup.
zzzz
KEYBOARD CONNECTOR :
PC/AT type mini DIN connector.
Support PC/AT, PS/2 Keyboard .
5 pin External keyboard connector.
zzzz
BUS SUPPORT :
External ISA BUS.
Internal PCI Bus, for IDE.
PC-104 BUS.
Chapter 1 Introduction
PC-420 USER‘S MANUAL
Page: 1-3
Chapter 1 Introduction
zzzz
WATCHDOG :
I / O port 443H to open watchdog.
I / O port 441H to close watchdog.
Time-out timing select 0 / 2 / 4 / 6 / 8 / 10 / 12 / 14 / 16 / 18 / 20 / 22 / 24 / 26 /
28 / 30 sec +/- 25%.
zzzz
IDE INTERFACE :
One IDE port, Support up to two Enhanced IDE devices.
zzzz
FLOPPY DISK DRIVER INTERFACE :
Support up to two Floppy Disk Drivers, 3.5" and 5.25" (360K / 720K / 1.2M /
1.44M / 2.88M).
zzzz
SERIAL PORT :
Two high speed 16550 Compatible UARTs with Send / Receive 16 Byte
FIFOs.
MIDI Compatible.
Programmable Band Rate Generator.
zzzz
PARALLEL PORT :
SPP, ECP, EPP Function.
Bi-direction parallel port.
zzzz
GREEN FUNCTION :
Software support by BIOS setup.
Hardware support by switch control.
zzzz
LED INDICATOR :
System power.
Hard Disk access.
Turbo and green function mode.
zzzz
PC-104 BUS EXPANSION & SPEED :
ISA 8MHz
PC-104 8MHz
PCI Bus 33MHz
zzzz
DMA CONTROLLER :
82C37 x 2
Page: 1-4
PC-420 USER‘S MANUAL
zzzz
DMA CHANNELS :
7
zzzz
INTERRUPT CONTROLLERS :
82C59 x 2
zzzz
INTERRUPT LEVELS :
15
zzzz
STORAGE TEMPERATURE :
-40 to 80°C.
zzzz
OPERATING TEMPERATURE :
0 to 60°C.
zzzz
SYSTEM POWER REQUIREMENT :
DC Voltage: +5V, mini mum +4.75V, maximum 5.25V.
DC Ampere: 5A.
DC Voltage: +12V, minimum +11.4V, maximum 12.6V.
DC Ampere: 500mA.
zzzz
BOARD DIMENSION :
7.2"(L) x 4.8"(W) ( 185mm x 122mm )
zzzz
BOARD WEIGHT :
0.24 Kg.
Chapter 1 Introduction
PC-420 USER‘S MANUAL
Page: 1-5
Chapter 1 Introduction
1-3. SAFETY PRECAUTIONS
Follow the messages below to avoid your systems from damage:
1. Avoid your system from static electric on all occasions.
2. Keep away from the electric shock, don't touch any components of this card
when the card is on. And always disconnect power from your system when
you work off.
3. Disconnect the power when you change any configurations. Because when
you connect a jumper or install any cards, the sudden of power may damage
the electric components.
Page: 1-6
PC-420 USER‘S MANUAL
HARDWARE
CONFIGURATION
** QUICK START **
Helpful informations detail you the jumper & connector settings, and
components locations.
Sections include:
z Jumper & Connector Quick Reference Table
z Components Locations
z Configuration and jumper settings
z Connector Pin Assignments
CHAPTER
2
Page 2-1
Chapter 2 Hardware Configuration
2-1 JUMPER & CONNECTOR QUICK REFERENCE TABLE
Hard Disk Driver LED Connector ......................... JP1
Turbo LED Connector ........................................... JP2
CPU Clock selection .............................................. JP4 /
1-6
RS232/422/485 (COM2) Selection ........................ JP4 / 7-12, JP5
Reset Connector ..................................................... JP6
Power LED and Keylock Connector ..................... JP7
CPU Voltage Selection .......................................... JP8
Green Function Switch Connector ......................... JP10
Cache Size Selection .............................................. JP11
CPU Type Selection .............................................. JP9
Hard Disk Connector ............................................. HDD
Floppy Disk Connector .......................................... FDD
Printer Connector ................................................... PRT
External Speaker Connector .................................. SPK
COM1 Connector ................................................... COM1
COM2 Connector ................................................... COM2
Keyboard Connector .............................................. DIN
External Keyboard Connector ............................... EXKB
PC/104 Connector .................................................. 104AB
PC/104 Connector .................................................. 104CD
Power Connector ................................................... PWR
Page: 2-2
PC-420 USER‘S MANUAL
2-2 COMPONENT LOCATIONS
Chapter 2 Hardware Configuration
PC-420 Connector ,Jumper and Component locations
PC-420 USER‘S MANUAL
Page: 2-3
Chapter 2 Hardware Configuration
2-3 HOW TO SET JUMPERS
You can configure your board by setting jumpers. A jumper consists of two or
three metal pins with a plastic base mounted on the card, and a small plastic
“cap”( with a metal contact inside) to connect the pins. So you can set up your
hardware confi guration by “op en” or “close” the pins.
The jumper can be combined into sets which called jumper blocks. When the
jumpers are all in the block, you have to put them together to set up the
hardware configuration. The figure below shows how this loo ks.
JUMPERS AND CAPS
If a jumper has three pins, for examples, labelled PIN1, PIN2, and PIN3. You can
connect PIN1 & PIN2 to create one setting and shorting. You can either connect PIN2
& PIN3 to create another setting. The same jumper diagrams are applied all through
this manual. The figure below shows what the manual diagrams look and what they
represent.
Page: 2-4
PC-420 USER‘S MANUAL
JUMPER DIAGRAMS
Chapter 2 Hardware Configuration
JUMPER SETTINGS
PC-420 USER‘S MANUAL
Page: 2-5
Chapter 2 Hardware Configuration
2-4 HARD DISK DRIVE LED
Hard Disk Driver LED Connector
JP1 :
The pin assignments are as follow :
PIN ASSIGNMENT
1 HDD Active Signal
2 Vcc
2-5 TURBO LED
Turbo LED Connector
JP2 :
The pin assignments are as follow :
PIN ASSIGNMENT
1 Turbo Signal
2 Vcc
2-6 CPU CLOCK SELECTION
JP4 1-2,3-4,5-6 :
The jumper settings are as follow :
CPU
CLOCK
1-2 3-4 5-6
25 MHz
33 MHz
Closed
40 MHz
Closed
*** Manufactory default --- 33MHz
Page: 2-6
CPU Clock Selection
(JP4 / 7-8,9-10,11-12 for COM 1,COM 2 IRQ selection)
JUMPER SETTING
Open
Closed
Open
Open
Open
Open
Open
SX-25, DX/2-50,
DX4/-75
SX-33, DX-33,
DX/2-66,DX/4-100
AMD5x86-133,
Cyrix5x86-100
SX-40, DX-40,
DX/2-80
Cyrix5x86-120
CPU TYPE
JUMPER
ILLUSTRATION
PC-420 USER‘S MANUAL
Chapter 2 Hardware Configuration
2-7 COM2 FOR RS-232/422/485 SELECTION
JP4/7-8, 9-10, 11-12 & JP5 :
COM1 fixed for RS-232 function only
COM2 selectable for RS-232 or 422, 485 function
The jumper settings are as follow :
COM 2
Function
RS-232
JP5
Jumper
setting
(pin closed)
JP5
Jumper
illustration
JP4
Jumper
Setting
(pin closed)
JP4
Jumper
illustration
*** Manufactory default --- RS-232.
RS-232/422/485 Selection
3-4
RS-422
1-2
3-5
7-8
9-10
11-12
13-14
7-8
9-10
11-12
RS-485
1-2
3-5
6-8
9-10
11-12
13-14
15-16
17-18
7-8
9-10
11-12
PC-420 USER‘S MANUAL
Page: 2-7
Chapter 2 Hardware Configuration
2-8 RESET CONNECTOR
Reset Connector
JP6 :
The pin assignments are as follow :
PIN ASSIGNMENT
1 Reset
2 Ground
2-9 POWER LED & KEYLOCK CONNECTOR
Power LED & Keylock Connector
JP7 :
The pin assignments are as follow :
PIN ASSIGNMENT
1 Power LED
2 NC
3 Ground
4 Keyboard INT
5 Ground
2-10 CPU VOLTAGE SELECTION
CPU Voltage Selection
JP8 :
The jumper settings are as follow :
CPU
VOLTAGE
3.3V
5V
*** Manufactory default --- 3.3V
Page: 2-8
JUMPER SETTING
1-2 2-3
Open
Closed
Closed
Open
JUMPER
ILLUSTRATION
PC-420 USER‘S MANUAL
Chapter 2 Hardware Configuration
2-11 GREEN FUNCTION SWITCH CONNECTOR
Green Function Co nnector
JP10 :
When you touch the switch first time, it works into green mode, the second
time is back to standard mode. The pin assignments are as follow:
PIN ASSIGNMENT
1 Green Signal
2 Ground
2-12 CACHE SIZE SELECTION
Cache Size Selection
JP11 :
The jumper settings are as follow :
Cache Size
128K
Jumper Setting
1-2 3-4
Open
Open
Jumper illustration
256K
512K
Open
Closed
*** Manufactory default --- 256K Cache.
PC-420 USER‘S MANUAL
Closed
Closed
Page: 2-9
Chapter 2 Hardware Configuration
2-13 CPU TYPE SELECTION
CPU Type Selection
JP9 :
The jumper settings are as follow :
CPU
Type
Jumper
setting
(pin closed)
Jumper
illustration
Intel
SX
5-6
11-12
13-15
14-16
19-20
22-24
Intel
DX\DX2
DX4
5-6
11-12
13-15
14-16
19-21
22-24
25-26
DX\DX4
AMD
4-6
9-11
15-16
19-21
22-24
25-26
AMD
DX2
4-6
9-11
15-16
17-18
19-21
22-24
25-26
AMD
Write Back
1-3
5-6
8-10
11-12
13-15
14-16
19-21
23-24
25-26
Page: 2-10
PC-420 USER‘S MANUAL
CPU
Type
Jumper
setting
(pin closed)
Jumper
illustration
Intel
P24D
OverDrive
1-3
5-6
8-10
11-12
13-15
14-16
19-21
23-24
25-26
WriteBack
Intel
DX2
AMD
5x86
1-3
5-6
7-9
8-10
11-12
13-15
14-16
19-21
23-24
25-26
*** Manufactory default --- Intel DX\DX2\DX4
Chapter 2 Hardware Configuration
Cyrix
DX\DX2
DX4
1-2
6-8
9-10
11-13
14-16
15-17
19-21
22-24
25-26
Cyrix
5x86\
100\12
1-3
5-6
8-10
11-12
15-17
14-16
19-21
23-24
25-26
Cyrix
5x86
0
133
1-3
5-6
7-9
8-10
11-12
15-17
14-16
19-21
23-24
25-26
PC-420 USER‘S MANUAL
Page: 2-11
Chapter 2 Hardware Configuration
2-14 HARD DISK DRIVE CONNECTOR
Hard Disk Connector
HDD :
The HDD disk pin assignments are as follow :
PIN ASSIGNMENT PIN ASSIGNMENT
1 REST 2 GND
3 D7 4 D8
5 D6 6 D9
7 D5 8 D10
9 D4 10 D11
11 D3 12 D12
13 D2 14 D13
15 D1 16 D14
17 D0 18 D15
19 GND 20 NC
21 NC 22 GND
23 IOW 24 GND
25 IOR 26 GND
27 IORDY 28 NC
29 NC 30 GND
31 IRQ14 32 IO16
33 A1 34 NC
35 A0 36 A2
37 CS1 38 CS2
39 HDLED 40 GND
Page: 2-12
PC-420 USER‘S MANUAL
Chapter 2 Hardware Configuration
2-15 FLOPPY DISK DRIVE CONNECTOR
Floppy Disk Drive Connector
FDD :
You can use a 34-pin daisy-chain cable to connect a two-FDDs. On one end of
this cable is a 34-pin flat cable to attach the FDD on the board, the other side
is to attach two FDDs.
The pin assignments are as follow :
PIN ASSIGNMENT PIN ASSIGNMENT
1 GND 2 RPM
3 GND 4 NC
5 GND 6 RATE0
7 GND 8 INDEX
9 GND 10 MTR0
11 GND 12 DRV1
13 GND 14 DRV0
15 GND 16 MTR1
17 GND 18 DIR
19 GND 20 STEP
21 GND 22 WDATA
23 GND 24 WGATE
25 GND 26 TRK0
27 GND 28 WRPTR
29 GND 30 RDATA
31 GND 32 SEL
33 GND 34 DSKCHG
PC-420 USER‘S MANUAL
Page: 2-13
Chapter 2 Hardware Configuration
2-16 PRINTER CONNECTOR
Printer Connector
PRT :
As to link the Printer to the card, you need a cable to connect both DB25
connector and parallel port. The pin assignments are as follow :
PIN ASSIGNMENT PIN ASSIGNMENT
1 STB 14 AUTFE
2 P0 15 ERROR
3 P1 16 INIT
4 P2 17 SLCTIN
5 P3 18 GND
6 P4 19 GND
7 P5 20 GND
8 P6 21 GND
9 P7 22 GND
10 ACK 23 GND
11 BUSY 24 GND
12 PE 25 GND
13 SLCT 26 NC
Page: 2-14
PC-420 USER‘S MANUAL
Chapter 2 Hardware Configuration
2-17 EXTERNAL SPEAKER CONNECTOR
external speaker connector
SPK :
The SPK pin assignment are as follow:
PIN ASSIGNMENT
1 SPK Signal
2 NC
3 GND
4 +5V
2-18 COM1 CONNECTOR
COM1 :
The COM1 Connector assignments are as follow :
COM1 Connector, DB9 male connector
PIN ASSIGNMENT
1 DCD
2 RX
3 TX
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI
PC-420 USER‘S MANUAL
Page: 2-15
Chapter 2 Hardware Configuration
2-19 COM2 CONNECTOR
COM2 :
COM2 Connector
The COM2 Connector assignments are as follow :
PIN ASSIGNMENT
RS-232 RS-422 RS-485
1 DCD TX- DATA2 RX TX+ DATA+
3 TX RX+ NC
4 DTR RX- NC
5 GND GND GND
6 DSR RTS- NC
7 RTS RTS+ NC
8 CTS CTS+ NC
9 RI CTS- NC
2-20 KEYBOARD CONNECTOR
Keyboard Connector
DIN :
The DIN connector assignments are as follow :
PIN ASSIGNMENT
Page: 2-16
1 KBDATA
2 NC
3 GND
4 VCC
5 KBCLK
6 NC
PC-420 USER‘S MANUAL
Chapter 2 Hardware Configuration
2-21 EXTERNAL KEYBOARD CONNECTOR
EXTB :
External Keyboard Connector
The pin assignments are as follow :
PIN ASSIGNMENT
1 KBCLK
2 KBDATA
3 NC
4 GND
5 VCC
2-22 POWER CONNECTOR
Power Connector
PWR :
The pin assignments are as follow :
PIN ASSIGNMENT
1 NC
2 +5V
3 +12V
4 -12V
5 GND
6 GND
PC-420 USER‘S MANUAL
Page: 2-17
Chapter 2 Hardware Configuration
2-23 MEMORY INSTALLING
The PC-420 CPU Card can support 4 DRAM banks ,bank 0 and bank 4 in two
pcs 72 pin SIMM sockets on board.
Note:
SIMM 1,2 for single & double Bank DRAM module
(72pin x 36bit x 2)
DRAM BANK CONFIGURATION
SIMM 1
BANK 0,1
SIMM 2
BANK 2,3
1M 1M
1M 1M 2M
2M 2M
1M 2M 3M
2M 2M 4M
4M 4M
1M 4M 5M
2M 4M 6M
4M 4M 8M
8M 8M
2M 8M 10M
4M 8M 12M
8M 8M 16M
4M 16M 20M
8M 16M 24M
16M 16M 32M
32M 32M
4M 32M 36M
8M 32M 40M
16M 32M 48M
32M 32M 64M
TOTAL
MEMORY
Page: 2-18
PC-420 USER‘S MANUAL
WATCHDOG
TIMER
CHAPTER
3
CONFIGURATION
This chapter inform you the watchdog timer concisely.It shows you
how to configure the watchdog-timer function.
Sections include:
z Watchdog Timer Configuration
Page: 3-1
Chapter 3 Watchdog Timer Configuration
3-1. WATCHDOG TIMER CONFIGURATION
The watchdog timer can reset the system automatically. It is defined at I/O port
. When you want to enable the watchdog timer, please write I/O port
443H
, then the system will reset itself. When you want to disable the function,
443H
write I/O port
function.
The PC-420 watchdog function, You must write your program so when it write
I/O port address 443 for enable watchdog and write I/O port address 043 for
disable watchdog. The timer's intervals have a tolerance of 25% so you should
program an instruction that will refresh the timer about every second.
The following program shows you how to program the watch timer in your
program.
Watchdog enable program:
MOV AX, 000FH (choose the value you need, start from 0)
MOV DX, 443H
OUT DX, AX
Watchdog disable program:
MOV AX, 000FH (ignore this value)
MOV DX, 441H
OUT DX, AX
The watchdog Timer control table as follow:
Level Value Time/sec Level Value Time/sec
1 F 0 9 7 16
2 E 2 10 6 18
3 D 4 11 5 20
4 C 6 12 4 22
5 B 8 13 3 24
6 A 10 14 2 26
7 9 12 15 1 28
8 8 14 16 0 30
, the system will run the command to stop the Watchdog
441H
Page:3-2
PC-420 USER‘S MANUAL
CHAPTER
GREEN PC
FUNCTION
This chapter gives you the concise information for Green PC Function.
Sections include:
z Power Saving Block Diagram
z CPU Doze Mode
z System STANDBY Mode
z System SUSPEND Mode
4
Page: 4-1
Chapter 4 Green PC Function
4-1. POWER SAVING BLOCK DIAGRAM
4-2. CPU DOZE MODE
1. After out of the timer, CPU clock is slow down to 8MHz.
2. Sound 1 beep.
3. Flash LED to indicate power saving status.
4. Monitor Activity, according to the setting of Advanced Setup.
5. Any activity occurs, system will exit from Doze mode to On mode.
4-3. SYSTEM STANDBY MODE
1. After out of the timer, CPU clock is slow down to 8MHz.
2. Sound 2 beeps.
3. Flash LED to indicate power saving status.
4. Level 1 cache are disabled.
5. VGA monitor displays blank screen.
6. Fixed disk driver motor will be spin off.
7. Any activity occurs, system will exit from Standby mode to On mode.
Page: 4-2
PC-420 USER‘S MANUAL
4-4. SYSTEM SUSPEND MODE
1. After out of the timer, CPU clock is slow down to 8MHz, if you use Intel Sseries or Cyrix (SMI) CPU, then CPU clock will be stopped.
2. Sound 3 beeps.
3. Flash LED to indicate power saving status.
4. Level 2 cache are disabled.
5. VGA monitor displays blank screen.
6. Fixed disk driver motor will be spin off.
7. Monitor activity according to the setting of Advanced Setup.
8. When system in Suspend mode, only Keyboard / Mouse / Alarm resume can
wakeup system.
Chapter 4 Green PC Function
PC-420 USER‘S MANUAL
Page: 4-3
Chapter 4 Green PC Function
Page: 4-4
PC-420 USER‘S MANUAL
AWARD
BIOS SETUP
This chapter states out how to set up the Award BIOS.
Sections include:
z Introduction
z Entering Setup
z The Award BIOS Setup
z The Standard CMOS Setup
z The BIOS Features Setup
z The Chipset Features Setup
z Power Management Setup
z Load BIOS defaults
z IDE HDD Auto Detection
z Save Setup
CHAPTER
5
Page: 5-1
Chapter 5 Award BIOS Setup
5-1. INTRODUCTION
This chapter will show you the function of a BIOS in managing the features
of your system. The PC-420 Embedded Card is equipped with the BIOS for
system chipset from Award Software Inc. This page briefly explains the
function of a BIOS in managing the special features of your system. The
following pages describe how to use the BIOS for system chipset Setup
menu.
Your application programs (such as word processing, spreadsheets, and
games) rely on an operating system such as DOS or OS/2 to manage such
things as keyboard, monitor, disk drives, and memory.
The operating system relies on a BIOS (Basic Input and Output system), a
program stored on a ROM (Read-only Memory) chip, to initialize and
configure your computer's hardware. As the interface between the hardware
and the operating system, the BIOS enables you to make basic changes to
your system's hardware without having to write a new operating system.
The following diagram illustrates the interlocking relationships between the
system hardware, BIOS, operating system, and application program:
Page: 5-2
PC-420 USER‘S MANUAL
Chapter 5 Award BIOS Setup
5-2. ENTERING SETUP
Power on the computer and press < Del > immediately will allow you to
enter Setup. The other way to enter Setup is to power on the computer, when
the below message appears briefly at the bottom of the screen during the
POST (Power On Self Test), press < Del > key or simultaneously press
<Ctrl>, < Alt >, and < Esc > keys.
TO ENTER SETUP BEFORE BOOT PRESS <CTRL-ALT-ESC> OR <DEL> KEY
As long as this message is present on the screen you may press the <Del> key
(the one that shares the decimal point at bottom of the number keypad) to
access the setup program. In a moment, the main menu of the Award SETUP
program will appear on the screen:
ROM / PCI / ISA BIOS (2A4KDPA)
CMOS SETUP UTILITY
AWARD SOFT WARE, INC
STANDARD CMOS SETUP
BIOS FEATURES SETUP
CHIPSET FEATURES SETUP
POWER MANAGEMENT SETUP
LOAD BIOS DEFAULTS
LOAD SETUP DEFAULTS
Esc : Quit
F10 : Save & Exit Setup (Shift)F2 : Change Color
Time, Date, Hard Disk Type.........
Setup program initial screen
PASSWORD SETTING
IDE HDD AUTO DETECTION
SAVE & EXIT SETUP
EXIT WITHOUT SAVING
↑↓→←
:SELECT ITEM
PC-420 USER‘S MANUAL
Page: 5-3
Chapter 5 Award BIOS Setup
You may use the cursor up/down keys to highlight the individual menu
items. As you highlight each item, a brief description of that item's function
appears in the lower window. If you have a color monitor you can use the
Shift F2 keys to scroll through the various co l or combinations available.
5-3. THE STANDARD CMOS SETUP MENU
Highlight STANDARD CMOS SETUP and press < ENTER > and the
screen shown as below :
ROM PCI / ISA BIOS (2A4XDP6A)
STANDARD CMOS SETUP
AWARD SOFT WARE, INC.
Date (mm:dd:yy) : Wed, Jan, 12, 1994
Time (hh:mm:ss) : 18 : 24 : 14
CYLS. HEADS PRECOMP LANDZONE SECTORS MODE
Drive C : Auto ( 0Mb) 0 0 0 0 0 Auto
Drive D : Auto ( 0Mb) 0 0 0 0 0 Auto
Drive A : 1.2M , 5.25 in.
Drive B : 1.4M , 3.5 in.
Video : EGA/VGA
Halt On: All Errors
Esc : Quit
:Select Item Pu/Pd/+/- : Modify
↑↓→←
F1 : Help (Shift) F2 : Change Color
CMOS setup screen
In the above table the base memo ry size and the extended memory size are
displayed. This is automatically read from your systems, and you do not
need to set these parameters. The screen shows a calendar. The week display
will depend on the date set in your system clock and the flashing indicating
the current date. Since you have not yet set the time and date, the date
displayed is probably incorrect. Information on each item is
Base Memory: 640K
Extended Memory: 15360K
Other Memory: 384K
----------------------------------Total Memory: 16384K
Page: 5-4
PC-420 USER‘S MANUAL
Chapter 5 Award BIOS Setup
Date:
< Month >, < Date > and <Year >. Ranges for each value are in the CMOS
Setup Screen, and the week-day will skip automatically.
Time:
< Hour >, < Minute >, and < Second >. Uses 24 hour clock format, i.e., for
PM numbers, add 12 to the hour. For examples, 4: 30P.M. You should enter
the time as 16:30:00.
Drive C type / Drive D type:
The categories identify the types of hard disk drive C or drive D that have
been installed in the computer. There are 45 predefined types and 2 user
definable types are for Normal BIOS. Type 1 or Type 45 are predefined.
Type User is user-definable.
Primary Master/Primary Slave/Secondary Master/Secondary Slave :
The categories identify the types of 2 channels that have been installed in
the computer. There are 45 predefined types and 4 user definable types are
for Enhanced IDE BIOS. Type 1 to Type 45 are predefined. Type User is
user-definable.
Press PgUp / <+> or PgDn / <-> to select a numbered hard disk type or type
the number and press < Enter >. Note that the specifications of your drive
must match with the drive table. The hard disk will not work properly if you
enter improper information for this category. If your hard disk drive type is
not matched or listed, you can use Type User to define your own drive type
manually.
If you select Type User, related information is asked to be entered to the
following items. Enter the information directly from the keyboard and press
< Enter >. This information should be provided in the docu-mentation from
your hard disk vendor or the system manufacturer.
If the controller of HDD interface is ESDI, the selection shall be
"Type 1".
If the controller of HDD interface is SCSI, the selection shall be "None"
If the controller of HDD interface is CD-ROM, the selection shall be
"None"
PC-420 USER‘S MANUAL
Page: 5-5
Chapter 5 Award BIOS Setup
TYPE:
This is the number designation for a drive with certain identification
parameters.
CYLS.:
This is the number of cylinders found in the specified drive type.
HEADS:
This is the number of heads found in the specified drive type.
WPCOM:
WPcom is the read delay circuitry which takes into account the timing
differences between the inner and outer edges of the surface of the disk
platter. The number designates the starting cylinder of the signal.
LZONE:
Lzone is the landing zone of the heads. This number determines the cylinder
location where the heads will normally park when the system is shut down.
SIZE (CAPACITY):
This is the formatted capacity of the drive based on the following formula:
(# of heads) X (# of cylinders) X (# of sets) X ( 512bytes/sects)
DRIVE A AND DRIVE B:
The option are 360KB 5.25in, 1.2KB 5.25in, 720KB 3.5in, 1.44MB 3.5in,
2.88MB 3.5in and None. Not Installed could be used as an option for
diskless workstations.
VIDEO:
Options are Monochrome, Color 40, VGA/EGA, Color 80.
Page: 5-6
PC-420 USER‘S MANUAL
HARD DISK ATTRIBUTES:
Type Cylinders Heads V-P comp LZone Sect Capacity
1 306 4 128 305 17 10
2 615 4 300 615 17 20
3 615 6 300 615 17 30
4 940 8 512 940 17 62
5 940 6 512 940 17 46
6 615 4 65535 615 17 20
7 642 8 256 511 17 30
8 733 5 65535 733 17 30
9 900 15 65535 901 17 112
10 820 3 65535 820 17 20
11 855 5 65535 855 17 35
12 855 7 65535 855 17 49
13 306 8 128 319 17 20
14 733 7 65535 733 17 42
15 000 0 0000 000 00 00
16 612 4 0000 663 17 20
17 977 5 300 977 17 40
18 977 7 65535 977 17 56
19 1024 7 512 1023 17 59
20 733 5 300 732 17 30
21 733 7 300 732 17 42
22 733 5 300 733 17 30
23 306 4 0000 336 17 10
24 977 5 65535 976 17 40
25 1024 9 65535 1023 17 76
26 1224 7 65535 1223 17 71
27 1224 11 65535 1223 17 111
28 1224 15 65535 1223 17 152
29 1024 8 65535 1023 17 68
30 1024 11 65535 1023 17 93
31 918 11 65535 1023 17 83
32 925 9 65535 926 17 69
33 1024 10 65535 1023 17 85
34 1024 12 65535 1023 17 102
35 1024 13 65535 1023 17 110
36 1024 14 65535 1023 17 119
37 1024 2 65535 1023 17 17
38 1024 16 65535 1023 17 136
39 918 15 65535 1023 17 114
40 820 6 65535 820 17 40
41 1024 5 65535 1023 17 42
42 1024 5 65535 1023 26 65
43 809 6 65535 852 17 40
44 809 6 65535 852 26 61
45 776 8 65335 775 33 100
47 User Defined
PC-420 USER‘S MANUAL
Chapter 5 Award BIOS Setup
Award Hard Disk Type Table
Page: 5-7
Chapter 5 Award BIOS Setup
5-4. The BIOS FEATURES SETUP MENU
Choose the "BIOS FEATURES SETUP" in the main menu, the screen
shown as below.
ROM PCI/ISA BIOS (2A4KDP6A)
BIOS FEATURES SETUP
CPU Internal Cache
External Cache
Quick Power On Self Test
Boot Sequence
Swap Floppy Drive
Boot Up Floppy Seek
Boot Up Numlock Status
Boot Up System Speed
Gate A20 Option
Memory Parity Check
Typematic Rate Setting
Typematic Rate (Chars/Sec)
Typematic Delay (Msec)
Security Option
The BIOS FEATURES SETUP allows you find true certain features
supported by the chipset and Award BIOS. It also includes support for
shadow RAM under which the contents of the ROM BIOS can be copied
into memory at boot up, enhancing performance. When you change any of
the setting, you may recall the default settings at any time from the main
menu.
This is detailed later. To get help on each item, highlight the relevant item
and press the F1 key. A Windows will appear on your screen detailing the
various options available for each item. A brief introduction of each setting
in the BIOS FEATURES SETUP program is given below.
AWARD SOFT WARE, INC.
: Enabled
: Enabled
: Disabled
: A,C
: Disabled
: Enabled
: ON
: High
: Fast
: Disabled
: Disabled
: 6
: 250
: Setup
Video BIOS Shadow
C8000 -CFFFF Shadow
D0000- D7FFF Shadow
D8000- DFFFF Shadow
Esc : Quit
F1 : Help Pu/Pd/+/- : Modify
F5 : Old Values (Shift)F2 : Color
F6 : Load BIOS Defaults
F7 : Load Setup Defaults
BIOS Features Setup
↑↓→←
: Enabled
: Disabled
: Disabled
: Disabled
: Select Item
Page: 5-8
PC-420 USER‘S MANUAL
CPU INTERNAL CACHE:
This item should always be Enable, if your system is 486CPU. Even if you
have installed the external cache. If you have no external cache installed this
item should be enabled to allow use of the internal 8K cache in the 486 CPU.
EXTERNAL CACHE:
Enable or disable this function according to whether you want external
cache enabled or disabled.
QUICK POWER ON SELF TEST:
You can enable or disable this item to speed up Power On Self Test (POST)
after you power on the computer. If it is set to Enable, BIOS will shorten or
skip some check items during POST.
BOOT SEQUENCE:
You may define whether the system will look first at drive A: and then at
drive C: when boot ing up, or vice versa.
BOOT UP FLOPPY SEEK:
You may enable / disable this item to define whether the system will look
for a floppy disk drive to boot at power-on, or directly to the hard disk drive.
BOOT UP NUMLOCK STATUS:
Use this item to enable / disable the NumLock on your keyboard
automatically at power-on.
BOOT UP SYSTEM SPEED:
Select High to configure your system in the turbo speed mode at boot up,
select Low to configure your system in normal speed mode. Whichever
setting you choose you will still be able to use the turbo switch to toggle
between the tow modes during use.
MEMORY PARITY CHECK:
Enable or Disable this item according to whether you wish the system to
check the memory parity during boot up or not. If you disable this item even
if the BIOS encounters a parity error it will be ignored. We re-commend that
you always enable the item in order to ensure that the memory is good each
time you turn your PC on.
Chapter 5 Award BIOS Setup
PC-420 USER‘S MANUAL
Page: 5-9
Chapter 5 Award BIOS Setup
GATE 20A OPTION:
When you set this category as Fast. The A20 signal is controlled by chipset
specific method.
TYPEMATIC RATE SETTING:
Enable this item if you wish to be able to configure the characteristics of
your keyboard. Typematic refers to the way in which characters are entered
repeatedly if a key is held down. For example, if you press and hold down
the "A" key, the letter "a" will repeatedly appear on your screen on your
screen until you release the key. This item is disable by default.
TYPEMATIC RATE (CHARS-SEC):
You can use this item to define the typematic rate delay of your keyboard,
i.e. the rate at which characters will be repeated when a key held down.
TYPEMATIC DELAY (MSEC):
You can use this item to define the period after which the typematic function
become active i.e. how long after you press a key the characters will be
repeated.
SECURITY OPTION:
This category allows you to limit access to the system and Setup, or adjust
to Setup. To disable security, select PASSWORD SETTING at Main Menu
and then you will be asked to enter password. Do not type anything and just
press <Enter>, it will disable security. Once the security is disabled, the
system will boot and you can enter Setup freely.
Page: 5-10
PC-420 USER‘S MANUAL
5-5. CHIPSET FEATURE SETUP
Choose the "CHIPSET FEATURES SETUP" from the main menu, the
screen shown as below.
ROM PCI/ISA BIOS (2A4KDP6A)
CHIPSET FEATURES SETUP
Auto Configuration
AT-BUS Clock
DRAM Read Timing
DRAM Write Timing
SRAM Read Timing
SRAM Write Timing
On Chip Local Bus IDE
IDE Primary Master PIO
IDE Primary Slave PIO
By moving cursor to the desired selection and pressing < F1 > key, the all
options for the desired selection will be displayed for choice. User has to
use select the desired option.
AUTO CONFIGURATION FUNCTION:
When this option is Enabled, the BIOS automatically configures cache and
clock settings based on detection of the CPU clock speed, you cannot
change the other parameters. Set this option to Disabled to manually set
DRAM, cache and I/O bus clock operating parameters.
DRAM TIMING OPTION:
The number of wait states added on reads to DRAM. Fewer wait states
improve performance.
AWARD SOFT WARE, INC.
: Enable
: CLK/4
: Normal
: Normal
: 3-1-1-1
: 0 Wait
: Enabled
: Auto
: Auto
Chipset Features Setup
Chapter 5 Award BIOS Setup
Onboard FDC Controller
Onboard Serial Port 1
Onboard Serial Port 2
Onboard Parallel Port
Parallel Port Mode
Esc : Quit
F1 : Help Pu/Pd/+/- : Modify
F5 : Old Values (Shift)F2 : Color
F6 : Load BIOS Defaults
F7 : Load Setup Defaults
↑↓→←
: Enabled
: 3F8/IRQ4
: 2F8/IRQ3
: 378/IRQ7
: Normal
: Select Item
PC-420 USER‘S MANUAL
Page: 5-11
Chapter 5 Award BIOS Setup
SRAM TIMING OPTION:
The number of wait states added on reads to SRAM. Fewer wait states
improve performance.
AT BUS CLOCK:
Defines the clock value for AT bus. Usually, AT bus clock should be
programmed to 8Mhz, e.g. when system clock is 33Mhz, choose 4/1 CLKIN.
All values derived from CLKIN is called synchronous mode. The 7.159Mhz
option is called asyc. mode.
5-6. POWER MANAGEMENT SETUP
Choose "POWER MANAGEMENT SETUP" optio n on the main menu, a
display will be shown on screen as below :
ROM PCI/ISA BIOS (2A4KDP6A)
POWER MANAGEMENT SETUP
Power Management
PM Control by APM
Video Off Option
Video Off Method
** PM Timer **
HDD Standby Timer
Doze Timer Select
Standby Timer Select
Inactive Timer Select
** PM Events **
VGA
FDD(3FXh)
LPT & (1FXh)
HDD (1FXh)
NMI
IRQ3 (COM 2)
IRQ4 (COM 1)
IRQ 5 (LPT 2)
This category determines how much power consumption for system after
selecting below items. Default value is Disable. Having made all the settings
above, press < Esc > to return to the main menu.
AWARD SOFT WARE, INC.
:Disable
:Yes
Susp,Stby->off
:V/H Sync+Blank
:Disabled
:Disabled
:Disabled
:Disabled
IRQ6 (Floppy Disk)
IRQ7 (LPT 1)
IRQ8 (RTC Alarm)
IRQ9 (IRQ Redir)
IRQ10 (Reserved)
IRQ11 (Reserved)
IRQ12 (PS/2 Mouse)
IRQ13 (Coprocessor)
IRQ14 (Hard Disk)
IRQ15 (Reserved)
:OFF
:ON
:LPT/COM
:ON
:OFF
:ON
:ON
:ON
Esc : Quit
F1 : Help Pu/Pd/+/- : Modify
F5 : Old Values (Shift)F2 : Color
F6 : Load BIOS Defaults
F7 : Load Setup Defaults
Power Management Setup
↑↓→←
: ON
: ON
: OFF
: ON
: OFF
: OFF
: ON
: OFF
: ON
: OFF
: Select Item
Page: 5-12
PC-420 USER‘S MANUAL
POWER MANAGEMENT:
This item determines how much power consumption for system. When you
define it as Max Saving are used all t imers MIN value.
PM CONTROL BY APM:
When this item is set to be YES, the system BIOS will wait for APM‘s
prompt before it enter any PM mode e.g. DOZE, STANDBY or SUSPEND.
If APM is installed, & if there is a task running, even the ti mer is time out,
the APM will not prompt the BIOS to put the system into any power saving
mode.
DOZE MODE TIMEOUT:
Sets the time interval after inactivity when the system enters Doze mode.
This options as following, from 10 Sec to 2 Hours or Disabled.
STANDBY MODE TIMEOUT:
Sets the time interval after system inactivity when the system enters
STANDBY mode. This options as following: From 30 Sec to 2 Hours or
Disabled.
SUSPEND MODE TIMER:
Sets the time interval after system inactivity when the system enters
SUSPEND mode. This options as following: From 30 Sec to 2 Hours or
Disabled.
Chapter 5 Award BIOS Setup
PC-420 USER‘S MANUAL
Page: 5-13
Chapter 5 Award BIOS Setup
5-7. LOAD BIOS DEFAULTS
AUTO CONFIGURATION WITH BIOS DEFAULTS
"LOAD BIOS DEFAULTS" loads the default BIOS values. When the
diagnostic aid of your system becomes unusable, c hoose this option and the
following message appears :
Load BIOS Default ( Y / N ) ? Y
To use the BIOS defaults, change the prompt to "Y" and press < Enter >, the
CMOS is load automatically when you power on the PC-410.
5-8 LOAD SETUP DEFAULTS
AUTO CONFIGURATION WITH SETUP DEFAULTS
This Main Menu item uses the default SETUP values. Use this option as a
diagnostic aid of your system behaves erratically. Choose this item and the
following message appears:
To use the SETUP defaults, change the prompt to "Y" and press <Enter> The
CMOS is load automatically form SETUP default values:
Page: 5-14
Load SETUP Default (Y/N)?Y
PC-420 USER‘S MANUAL
5-9 PASSWORD SETTING
If you want to enable this item you should choose the "PASSWORD
SETTING" option from the main menu, the following message will appear
at the center of the screen to assist you in creating a password.
Enter Password:
Type the password, up to eight characters, and press < Enter >. The
password typed now will clear any previously entered password from
CMOS memory. You will be asked to confirm the password. Type the
password again and press < Enter >. You may also press < Esc > to abort
the selection and not enter a password.
To disable password, just press < Enter > when you are prompted to enter
password. A message will confirm the password being disable. Once the
password is disabled, the system will boot and you can enter Setup freely.
Password Disabled
Chapter 5 Award BIOS Setup
If you select System at Security Option of BIOS Features Setup Menu, you
will be prompted for the password every time the system is rebooted or any
time you try to enter Setup. If you select Setup at Security Option of BIOS
Features Setup Menu, you will be prompted only when you try to enter
Setup.
PC-420 USER‘S MANUAL
Page: 5-15
Chapter 5 Award BIOS Setup
5-10. IDE HDD AUTO DETECTION
Choose the "IDE HDD AUTO DETECTION" op tion . The screen will be
shown as below.
ROM PCI / ISA BIOS (2A4XDP6A)
STANDARD CMOS SETUP
AWARD SOFT WARE, INC.
CYLS. HEADS PRECOMP LANDZONE SECTORS MODE
Drive C : ( Mb) 0 0 0 0 0 -------
Select Driver C Option (N=Skip) : N
Option Size Cyls Heads Precomp Landzone Sectors Mode
____________________________________________________________
2(Y) 1277 619 64 0 2476 63 LBA
1 1278 2477 16 65535 2476 63 Normal
3 1277 1238 32 65536 2476 63 Large
Note: Some Oses (like SCO-UNIX) must use “Normal” for installation
IDE HDD AUTO DETECTION Screen
AUTO DETECTION
BIOS setup will display all possible modes that supported by the HDD
including NORMAL, LBA, & LARGE.
If HDD does not support LBA mode, ‘LBA’ option will be shown.
If no of cylinders is less then or equal to 1024, no ‘LARGE’ option will be
shown.
User can select a mode which is appropriate for then.
Page: 5-16
PC-420 USER‘S MANUAL
HDD MODE
The Award BIOS supports 3 HDD mode: NORMAL, LBA, & LARGE
NORMAL mode:
Generic access mode in which neither the BIOS nor the IDE controller will
make any transformations during accessing.
The maximum number of cylinders, heads & sectors for NORMAL mode are
1024, 16, &63.
no. Cylinder (1024)
x no. Head ( 16)
x no. Sector ( 63)
x no. Per sector ( 512)
-------------------------------------- Total: 528 Mega byte
If user set his HDD to NORMAL mode, the maximum accessible HDD size
will be 528 Megabytes even though its physical size may be greater than that.
LBA (logical Block Addressing) mode:
A new HDD accessing method to overcome the 528 Megabyte bottleneck. The
number of cylinders. head & sectors shown in setup may not be the number
physically contained in the HDD.
During HDD accessing, The IDE controller will transform the logical address
described by sector, head & cylinder number into its own physical address
inside the HDD.
The maximum HDD size supported by LBA mode is 8.4 Gigabyte which is
obtained by the following formula:
no. Cylinder (1024)
x no. Head ( 255)
x no. Sector ( 63)
x no. Per sector ( 512)
-------------------------------------- Total: 8.4 Giga byte
Chapter 5 Award BIOS Setup
PC-420 USER‘S MANUAL
Page: 5-17
Chapter 5 Award BIOS Setup
LARGE mode
:
Some IDE HDDs contain more than 1024 cylinder without LBA support (in
some cases, user do not want LBA). The BIOS provides another alternative
to support these kinds of HDD.
CYLS HEADS SECTOR MODE
---------------------------------------------------------------- 1120 16 59 NORMAL
560 32 59 LARGE
BIOS tricks DOS (or other OS) that the number of cylinder is less than 1024
by dividing it by 2. At the same time, the number of heads is multiplied by 2.
A reverse transformation process will be made inside INT 13h in order to
access the right HDD address the right HDD address.
Maximum HDD size:
no. Cylinder (1024)
x no. Head ( 32)
x no. Sector ( 63)
x no. Per sector ( 512)
-------------------------------------- Total: 1 Giga byte
REMARKS
:
To support LBA or LARGE mode of HDDs, there must be some softwares
involved. All these softwares are located in the Award HDD Service
Routine (INT 13h). It may be failed to access a HDD with LBA(LARGE)
mode selected if you are running under a Operating System which replaces
the whole INT 13h.
Page: 5-18
PC-420 USER‘S MANUAL
5-11 SAVE SETUP
When you have completed adjusting all the settings as required, you must
have these setting into the CMOS RAM. Select SAVE & EXIT and
press<Enter> , when you confirm that you wish to save the settings your
machine will be automatically rebooted and the changes you have made will
be implemented. You may call up the setup program at any time to adjust
any of the individual items by pressing the <Del> key during boot up. If
wish to cancel any changes you have made, select EXIT WITHOUT
SAVING and the original setting stored in the CMOS will be retained.
Chapter 5 Award BIOS Setup
PC-420 USER‘S MANUAL
Page: 5-19
Chapter 5 Award BIOS Setup
Page: 5-20
PC-420 USER‘S MANUAL
EXPANSION BUS
This appendix indicates you the pin assignments.
Sections include:
z PC-104 Connector Pin Assignment
z ISA BUS Pin Assignment
APPENDIX
A
Page: A-1
Appendix A EXPANSION BUS
PC-104 CONNECTOR PIN ASSIGNMENT
104AB, 104CD : PC-104 Connector
The PC-104 can support multi-pieces of PC-104 modules. This card has two
connectors : one (104AB) consists of 64 pin, dual-in-line header, the other one
(104CD) consists of 40 pin, dual-in-line header
The pin assignment for connector 104AB & 104CD are as follow:
ASSIGNMENT
PIN
1 GND 33 IOCHK 1 GND 21 GND
2 REST 34 D7 2 MEMCS16 22 SBHE
3 VCC 35 D6 3 IOCS16 23 LA23
4 IRQ9 36 D5 4 IRQ10 24 LA22
5 -5V 37 D4 5 IRQ11 25 LA21
6 DRQ2 38 D3 6 IRQ12 26 LA20
7 -12V 39 D2 7 IRQ15 27 LA19
8 ZWS 40 D1 8 IRQ14 28 LA18
9 +12V 41 D0 9 DACK0 29 LA17
10 KEY PIN 42 IOCHRDY 10 DRQ0 30 MEMR
11 SIOW 43 AEN 11 DACK5 31 MEMW
12 SIOR 44 A19 12 DRQ5 32 D8
13 IOW 45 A18 13 DACK6 33 D9
14 IOR 46 A17 14 DRQ6 34 D10
15 DACK3 47 A16 15 DACK7 35 D11
16 DRQ3 48 A15 16 DRQ7 36 D12
17 DACK1 49 A14 17 VCC 37 D13
18 DRQ1 50 A13 18 MASTER 38 D14
19 REFSH 51 A12 19 GND 39 D15
20 CLK 52 A11 20 GND 40 KEY PIN
21 IRQ7 53 A10
22 IRQ6 54 A9
23 IRQ5 55 A8
24 IRQ4 56 A7
25 IRQ3 57 A6
26 DACK2 58 A5
27 TC 59 A4
28 BALE 60 A3
29 VCC 61 A2
30 OSC 62 A1
31 GND 63 A0
32 GND 64 KEY PIN
104AB 104CD
PIN
ASSIGNMENT
PIN
ASSIGNMENT
PIN
ASSIGNMENT
Page: A-2
PC-420 USER‘S MANUAL
Appendix A EXPANSION BUS
ISA BUS PIN ASSIGNMENT
The ISA BUS for this card is called “Gold Fingers”. It is devided into two sets :
one consists of 62 pins, the other consists of 36 pins.
The pin assignments are as follow :
PIN ASSIGNMENT PIN ASSIGNMENT PIN ASSIGNMENT PIN ASSIGNMENT
B1 GND A1 -I/O CH CHK D1 -MEMCS16 C1 SBHE
B2 RESET A2 SD07 D2 -I/OCS16 C2 LA23
B3 +5V A3 SD06 D3 IRQ10 C3 LA22
B4 IRQ9 A4 SD05 D4 IRQ11 C4 LA21
B5 -5V A5 SD04 D5 IRQ12 C5 LA20
B6 DRQ2 A6 SD03 D6 IRQ15 C6 LA19
B7 -12V A7 SD02 D7 IRQ14 C7 LA18
B8 OWS A8 SD01 D8 -DACK0 C8 LA17
B9 +12V A9 SD00 D9 DRQ0 C9 -MEMR
B10 GND A10 -I/O CH RDY D10 -DACK5 C10 -MEMW
B11 -SMEMW A11 AEN D11 DRQ5 C11 SD08
B12 -SMEMR A12 SA19 D12 -DACK6 C12 SD09
B13 -IOW A13 SA18 D13 DRQ6 C13 SD10
B14 -IOR A14 SA17 D14 -DACK7 C14 SD11
B15 -DACK3 A15 SA16 D15 DRQ7 C15 SD12
B16 -DRQ3 A16 SA15 D16 +5V C16 SD13
B17 -DACK1 A17 SA14 D17 -MASTER C17 SD14
B18 -DRQ1 A18 SA13 D18 GND C18 SD15
B19 -REFRESH A19 SA12
B20 BCLK A20 SA11
B21 IRQ7 A21 SA10
B22 IRQ6 A22 SA09
B23 IRQ5 A23 SA08
B24 IRQ4 A24 SA07
B25 IRQ3 A25 SA06
B26 -DACK2 A26 SA05
B27 T/C A27 SA04
B28 BALE A28 SA03
B29 +5V A29 SA02
B30 OSC A30 SA01
B31 GND A31 SA00
PC-420 USER‘S MANUAL
B A D C
Page: A-3
TECHNICAL
SUMMARY
This section introduce you the maps concisely.
Sections include:
z Interrupt Map
z RTC & CMOS RAM Map
z Timer & DMA Channels Map
z I / O & Memory Map
APPENDIX
B
Page: B-1
Appendix B Technical Summary
INTERRUPT MAP
IRQ ASSIGNMENT
0 System TIMER interrupt from TIMER-0
1 Keyboard output buffer full
2 Cascade for IRQ 8-15
3 Serial port 2
4 Serial port 1
5 Parallel port 2
6 Floppy Disk adapter
7 Parallel port 1
8 RTC clock
9 Available
10 Available
11 Available
12 Available
13 Math coprocessor
14 Hard Disk adapter
15 Available
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RTC & CMOS RAM MAP
CODE ASSIGNMENT
00 Seconds
01 Second alarm
02 Minutes
03 Minutes alarm
04 Hours
05 Hours alarm
06 Day of week
07 Day of month
08 Month
09 Year
0A St atus register A
0B Status register B
0C Status register C
0D Status register D
0E Diagnostic status byte
0F Shutdown byte
10 Floppy Disk drive type byte
11 Reserve
12 Hard Disk type byte
13 Reserve
14 Equipment byte
15 Base memory low byte
16 Base memory high byte
17 Extension memory low byte
18 Extension memory high byte
19-2d
2E-2F
30 Reserved for extension memory low byte
31 Reserved for extension memory high b yte
32 Date Century byte
33 Information Flag
34-3F Reserve
40-7f Reserved for Chipset Setting Data
Appendix B TECHNICAL SUMMARY
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Appendix B Technical Summary
TIMER & DMA CHANNELS MAP
Timer Channel Map
Timer Channel Assignment
0 System timer interrupt
1 DRAM Refresh request
2 Speaker tone generator
DMA Channel Map
DMA Channel Assignment
0 Available
1 IBM SDLC
2 Floppy Disk adapter
3 Channel-3 Available
4 Cascade for DMA controller 1
5 Available
6 Available
7 Available
:
:
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Appendix B TECHNICAL SUMMARY
I/O & MEMORY MAP
Memory Map :
MEMORY MAP ASSIGNMENT
0000000-009FFFF System memory used by DOS and
application
00A0000-00BFFFF Display buffer memory for VGA/ EGA /
CGA / MONOCHROME adapter
00C0000-00DFFFF Reserved for I/O device BIOS ROM or
RAM buffe r.
00E0000-00EFFFF Reserved for PCI device ROM
00F0000-00FFFFF System BIOS ROM
0100000-BFFFFFF System extension memory
I/O Map :
I/O MAP ASSIGNMENT
000-01F DMA controller (Master)
020-021 Interrupt controller (Master)
022-023 Chipset controller registers I/O ports.
040-05F Timer control regsiters.
060-06F Keyboard interface controller (8042)
070-07F RTC ports & CMOS I/O ports
080-09F DMA register
0A0-0BF Interrupt controller (Slave)
0C0-0DF DMA controller (Slave)
0F0-0FF Math coprocessor
1F0-1F8 Hard Disk controller
278-27F Parallel port-2
2B0-2DF Graphics adapter controller
2F8-2FF Serial port-2
360-36F Net work ports
378-37F Parallel port-1
3B0-3BF Monochrome & Printer adapter
3C0-3CF EGA adapter
3D0-3DF CGA adapter
3F0-3F7 Floppy disk controller
3F8-3FF Serial port-1
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Appendix B Technical Summary
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TROUBLE
SHOOTING
This section outlines the errors may occur when you operate the
system, also gives you the suggestions o n solving the probl ems.
Sections include:
z Trouble Shooting for Error Messages
z Trouble Shooting for POST Code
APPENDIX
C
Appendix C Trouble Shooting
C-1 TROUBLE SHOOTING FOR ERROR MESSAGE
The following information inform you the error messages and the trouble
shooting. Please adjust your systems according to the messages below. And
make sure all the components and connectors are in proper position and firmly
attached. If the errors still encountered, please contact with yo ur distributor for
maintenance.
POST BEEP :
Currently there are two kind of beep codes in BIOS. The one code in-dicates
that a video error has occurred and the BIOS cannot initialize the video screen
to display any additional information. This beep code con-sists of a single long
beep followed by three short beeps. The other one code indicates that your
DRAM error has occurred. This beep code consists of a single long beep
repeatedly.
CMOS BATTERY FAILURE :
When the CMOS battery is out of work or has run out, the user has to replace
the whole unit.
CMOS CHECKSUM ERROR :
This error inform you that the CMOS is corrupted. When the battery runs weak,
this situation might happen. Please check the battery and change a new one
when necessary.
DISPLAY SWITCH IS SET INCORRECTLY :
Display switch on the motherboard can be set to either monochrome or color.
This indicates the switch is set to a different setting than indicated in Setup.
Determine which setting is correct, and then either turn off the system and
change the jumper, or enter Setup and change the video selection.
DISK BOOT FAILURE:
When you can‘t find the boot device, insert a system disk into Drive A and
press < Enter >. Make sure both the controller and cables are all in proper
positions, also make sure the disk is formatted correct device. Then reboot the
system.
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Appendix C Trouble Shooting
DISKETTE DRIVES OR TYPES MISMATCH ERROR :
When the diskette drive type is different from CMOS, please run setup or
configure the drive again.
ERROR ENCOUNTERED INITIALIZING HARD DRIVE :
Hard drive cannot be initialized. Be sure the adapter is installed correctly and
all cables are correctly and firmly attached. Also be sure the correct hard drive
type is selected in Setup.
ERROR INITIALIZING HARD DISK CONTROLLER :
When this error occurs. Be sure the cord is exactly installed in the bus. Make
sure the correct hard drive type is selected in Setup. Also check whether all of
the jumpers are set correctly in the hard drive.
FLOPPY DISK CONTROLLER ERROR OR
NO CONTROLLER PRESENT :
When you cannot find or initialize the floppy drive controller, please check the
controller whether in proper Setup. If there are no floppy drive installed,
Ensure the Diskette Drive selection in Setup is set to NONE.
KEYBOARD ERROR OR NO KEYBOARD PRESENT :
When this situation happens, please check keyboard attachment and no keys
being pressed during the boot. If you are purposely configuring the system
without a keyboard, set the error halt condition in Setup to HALT ON ALL,
BUT KEYBOARD. This will cause the BIOS to ignore the missing keyboard
and continue the boot.
MEMORY ADDRESS ERROR :
When the memory address indicates error. You can use this location along
with the memory map for your system to find and replace the bad memory
chips.
MEMORY SIZE HAS CHANGED :
Memory has been added or removed since the last boot. In EISA mode use
Configuration Utility to re-configure the memory configuration. In ISA mode
enter Setup and enter the new memory size in the memory fields.
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Appendix C Trouble Shooting
MEMORY VERIFYING ERROR :
It indicates an error verifying a value already written to memory. Use the
location along with your system's memory map to locate the bad chip.
OFFENDING ADDRESS MISSING :
This message is used in connection with the I/O CHANNEL CHECK and
RAM PARITY ERROR messages when the segment that has caused the
problem cannot be isolated.
REBOOT ERROR :
This will be displayed at the bottom screen when an error occurs that requires
you to reboot. Press any key and the system will reboot.
SYSTEM HALTED :
Indicates the present boot attempt has been aborted and the system must be
rebooted. Press and hold down the CTRL and ALT keys and press DEL.
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Appendix C Trouble Shooting
C-2 TROUBLE SHOOTING FOR POST CODES
When you power on your PC, and the screen display nothing. You have to
insert the POST Card for test. The address for ISA POST port is 80h. Make
sure the card is in correct slot. The lists below indicate you the error messages.
Please follow the instruction to adjust your system. If the error still occurred,
please contact with your distributor for maintenance.
Turn off OEM specific cache, shadow.....
C0 :
Initialize all the standard devices with default values Standard devices
03 :
includes :
DMA controller (8237).
Programmable Interrupt Controller (8259).
Programmable Interval Timer (8254).
RTC chip.
1.Keyboard Controller Self-Test.
05 :
2.Enable Keyboard Interface.
Verfies CMOS‘s basic R/W functionality.
07 :
Program defaults values into chipset according to the MODBINable Chipset
BE :
Default Table.
Auto-detection of onboard DRAM & Cache.
C1 :
Copy the BIOS from ROM into E0000-FFFFF shadow RAM so that POST
C5 :
will go faster.
Test the first 256K DRAM.
08 :
1. Program the configuration register of Cyrix CPU according to the
09 :
MODBINable Cyrix Register Table.
2. OEM specific cache initialization (if needed).
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Appendix C Trouble Shooting
1. Initialize the first 32 interrupt vectors with corresponding Interrupt handlers
0A :
Initialize INT no from 33-120 with Dummy(Spurious) Interrupt Handler.
2. Issue CPUID instruction to identify CPU type.
3. Early Power Management initialization (OEM specific).
1.Verify the RTC time is valid or not.
0B :
2. Detect bad battery.
3. Read CMOS data into BIOS stack area.
4. PnP initializations including (PnP BIOS only).
-Assign CSN to PnP ISA card.
-Create resource map from ESCD.
5. Assign I/O & Memory for PCI devices (PCI BIOS only).
Initialization of the BIOS Data Area (40 : 0N-40:FF).
0C :
1. Program some of the Chipset‘s value according to Setup. (Early Setup
0D :
Value Program).
2. Measure CPU speed for display & decide the system clock speed.
3. Video initialization including Monochrome ,CGA, EGA/VGA. If no
display device found, the speaker will beep.
1. Initialize the APIC (Multi-Processor BIOS only).
0E :
2. Test video RAM (If Monochrome display device found).
3. Show messages including :
-Award Logo, Copyright string, BIOS Date code & Part No.
-OEM specific sign on messages.
-Energy Star Loge (Green BIOS only).
-CPU brand, type & speed.
-Test system BIOS checksum (Non-compress Version only).
DMA channel 0 test.
0F :
DMA channel 1 test.
10 :
DMA page registers test.
11 :
Test 8254 Timer 0 Counter2.
14 :
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Appendix C Trouble Shooting
Test 8259 interrupt mask bits for channel 1.
15 :
Test 8259 interrupt mask bits for channel 2.
16 :
Test 8259 functionality.
19 :
Detect Base Memory & Extended Memory Size.
30 :
1. Test Base Memory from 256K to 640K.
31 :
2. Test Extended Memory from 1M to the top of memory.
1.Display the Award Plug & Play BIOS Extension message (PnP BIOS only).
32 :
2.Program all onboard super I/O chips (if any) including COM ports, LPT
ports, FDD port....according to setup value.
Set flag to allow users to enter CMOS Setup Utility.
3C :
1 Initialize Keyboard.
3D :
2 Install PS2 mouse.
Try to turn on Level 2 cache.
3E :
Note : Some chipset may need to turn on the L2 cache in this stage. But
usually, the cache is turn on later in POST 61h.
1. Program the rest of the Chipset‘s value according to Setup. (Later Setup
BF :
Value Program).
2. If auto-configuration is enabled, programmed the chipset with pre-defined
value in the MODBINable Auto-Table.
Initialize floppy disk drive controller.
41 :
Initialize Hard drive controller.
42 :
If it is a PnP BIOS, initialize serial & parallel ports.
43 :
Initialize math coprocessor.
45 :
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Appendix C Trouble Shooting
If there is any error detected (such as video, kb....), show all the error
4E :
messages the screen & wait for user to press <F1> key.
1. If password is needed, ask for password.
4F :
2. Clear the Energy Star Logo (Green BIOS only).
Write all CMOS values currently in the BIOS stack area back into the CMOS.
50 :
1.Initialize all ISA ROMs.
52 :
2. Later PCI initializations (PCI BIOS only).
-assign IRQ to PCI devices.
-initialize all PCI ROMs.
3.PnP Initializations (PnP BIOS only).
-assign I/O, Memory, IRQ & DMA TO PnP ISA devices.
-initialize all PnP ISA ROMs.
4. Program shadows RAM according to Setup settings.
5. Program parity according to Setup setting.
6. Power Management Initialization.
-Enable/Disable global PM.
-APM interface initialization.
1.If it is NOT a PnP BIOS, initialize serial & parallel ports.
53 :
2. Initialize time value in BIOS data area by translate the RTC time value into a
timer tick value.
Setup Virus Protection (Boot Sector Protection) functionality according to
60 :
Setup setting.
1. Try to turn on Level 2 cache.
61 :
Note : if L2 cache is already turned on in POST 3D, this part will be skipped.
2. Set the boot up speed according to Setup setting.
3. Last chance for Chipset initialization.
4. Last chance for Power Management initialization (Green BIOS only).
5. Show the system configuration table.
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Appendix C Trouble Shooting
1.Setup daylight saving according to Setup value.
62 :
2.Program the NumLock, typematic rate & typematic speed according to
Setup setting.
1. If there is any changes in the hardware configuration, update the ESCD
63 :
information (PnP BIOS only).
2. Clear memory that have been used.
3. Boot system via INT 19H.
System Booting. this means that the BIOS already pass the control right to the
FF :
operating system.
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PRINTED IN TAIWAN
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