TYAN Single S1662S, Dual S1662D User Manual

Revision 1.2

Single S1662S/Dual S1662D

Pentium Pro

440FX PCI-ISA System Board

User's Manual

Table Of Contents

1. Introduction.......................................................................3

1.1 Overview................................................................3

1.2 Hardware Specifications..........................................4

1.3 Software Specifications.......................................... 5

1.4 Environment........................................................... 5

2. Board Installation..............................................................6

2.1 Unpacking.............................................................. 6

2.2 Installation.............................................................. 6

3. S1662 On Board Resource Settings................................. 7

3.1 S1662 Board Layout & Jumper Locations................ 7

3.2 Quick Reference for Jumpers.................................. 8

3.3 CMOS RTC............................................................11

3.4 Speaker Connector..................................................11

3.5 Turbo Switch.......................................................... 11

3.6 Turbo LED Connect................................................11

3.7 Reset Connector..................................................... 12

3.8 Flash EPROM Jumpers.......................................... 12

3.9 CMOS & Password Reset...................................... 12

3.10 DRAM Installation................................................ 13

3.11 CPU Installation.................................................... 15

3.12 VRM Installation...................................................16

3.13 Peripheral Device Installation.................................16

3.14 Connecting The Power Supply............................. 17

4. BIOS Configuration...........................................................19

4.1 Entering Setup....................................................... 19

4.2 Control Keys......................................................... 20

4.3 Getting Help........................................................... 21

4.4 The Main Menu...................................................... 21

4.5 Standard CMOS Setup Menu...................................23

4.6 BIOS Features Setup.............................................. 26

4.7 Chipset Features Setup............................................29

4.7.1 Power Management Setup........................30

4.8 PCI Slot Configuration.............................................32

4.9 Integrated Peripherals............................................. 34

5. Flash Writer Utility............................................................38

6. System Resources.............................................................41

4.10 Load Setup Defaults..............................................35

4.11 IDE HDD Auto Detection..................................... 37

4.12 Save & Exit Setup.................................................37

5.1 The Flash Memory Writer Utility Screen...................40

6.1 Timer & DMA Channel Map....................................41

6.2 Interrupt Map......................................................... 41

2S1662-AT-001 http://www.tyan.com

1. Introduction

1.1 Overview

The S1662 is a quality, high performance single/dual processor mainboard
based on the powerful Intel Pentium Pro microprocessors. This
mainboard is designed around the latest and fastest Intel 440FX chipset
and can support CPU speeds of 150MHz through 200MHz.

The S1662 supports EDO memory, Burst EDO, ECC and memory parity
checking.The S1662's PCI Local Bus provides high performance capabili­ties that are ideal for a wide range of demanding applications such as:
CAD, CAM, CAE, networking, multi-user environments, database man­agement, desktop publishing, image processing and 3D animation.

This integrated system board achieves the highest reliability and is based
on a "Baby AT" form factor. Some of the features included are: on­board dual channel PCI IDE, on-board floppy controller, on-board high
speed I/O, Universal Serial Bus and on-board PS/2 mouse connector.

Flexibility and expandibility have been designed into the S1662. With I/O
and drive controller support built on-board, the five PCI and three ISA
(One ISA and one PCI as a shared slot) slots are free for add-on expansion
cards. With eight SIMM sockets, the S1662 can provide a very
flexible memory configuration of 8MB to 1024MB of RAM. With the
S1662D's support for dual Pentium Pro processors, you can start a
system with just one CPU, and later add another, when more processing
power is required.

Remember to take a look at Tyan Computers web site located at
http://www.tyan.com. Here you can find information on all of Tyan's
products along with FAQ's, distributors list, drivers and CMOS setting
explanations.

3S1662-AT-001 http://www.tyan.com

1.2 Hardware Specifications/Features

wCPU Intel Pentium Pro 150 thru 200 MHz (Socket 8)

(Single or Dual CPU configuration)

wCoprocessor On-chip floating point unit

wSpeed 60/66 MHz system bus

30/33 MHz PCI bus

7.5/8.33 MHz ISA bus speed

wDRAM 4 double banks of 72 pin SIMM sockets

Supports 5V or 3.3V memory
Supports BEDO(Burst Extended Data Out)
Supports EDO(Extended Data Out) DRAMs
Supports ECC(Error Correcting Code)w/ parity
Supports Fast Page Mode DRAMs
Supports 8MB to 1024MB of DRAMs

wL2 Cache 256/512KB 2nd level cache in CPU

wEIDE Controller Primary and secondary PCI EIDE channels on

board for support of up to four EIDE Mode 0
through Mode 4 drives
Supports DMA(Bus Master) mode 1 and 2.
( Bus Master driver on web at www.tyan.com)

wEnhanced I/O Multi-mode bi-directional parallel port that

supports standard, EPP and ECP modes.
Supports 16550 compatible UARTS for on-board
high speed serial ports.
Support for an IrDA compliant InfraRed inter­face.
On-board floppy controller.
On-board Univeral Serial Bus controller.

wMouse On-board PS/2 mouse connector.

wI/O Bus Slots 5 Master/Slave PCI-Bus

3 ISA Bus (One ISA and one PCI shared slot)

4S1662-AT-001 http://www.tyan.com

1.3 Software Specifications

wBIOS Award or AMI BIOS

AT CMOS setup, BIOS/CHIPSET setup,
and hard disk utility included.
Support for easy BIOS upgrades with flash
EEPROM chip.

wO.S. Operates with MS-DOS, Windows 3.x, Windows

for Work Groups 3.x, Windows 95, Windows NT,
OS/2, Novell Netware, Novell UnixWare 1.1 and
SCO Unix .

1.3 Environment

Ambient Temperature 0 to +50 C (operating)
Relative Humidity 0 to +85% (operating)
Altitude 0 to 10,000 feet (operating)
Vibration 0 to 1,000 Hz
Voltage 4.9 to 5.2 V

Information presented in this publication has been carefully checked for
reliability; however, no responsibility is assumed for inaccuracies. The
information contained in this document is subject to change without
notice.

Award BIOS/Flash are trademarks of Award Software International Inc.
AMI BIOS is a trademarks of American Megatrends Inc.
IBM,PC,AT,PS/2 are trademarks of IBM Corporation
INTEL,Pentium Pro are trademarks of Intel Corporation.
Copyright c 1996 TYAN Computer Corp.
S1662, Titan Pro AT.

Trademarks

5S1662-AT-001 http://www.tyan.com

2. Board Installation

2.1 Unpacking

The mainboard package contains the following:

wS1662 Mainboard
wOne IDE 40 pin cable
wTwo serial cables

wwOne parallel cable

wOne 34 pin floppy cable
wUser's Manual
wOptional PS/2 mouse cable
wOptional VRM(Voltage Regulator Module)

The mainboard contains sensitive electric components which can be easily
damaged by static electricity, so the mainboard should be left in its original
packaging until it is ready to be installed.

With the power supply plugged in and turned off touch an unpainted area of
the system chassis imedietly before handling the mainboard or any compo­nent. Doing so discharges the static charge your body may have built.

After opening the mainboard carton, extract the system board holding it by
its edges ,and place it only on a grounded anti-static surface, component
side up. Inspect the board for damage. Press down on all of the socket IC's
to make sure that they are properly seated. Do this only with the board
placed on an anti-static mat. Do not touch the bottom of the board.

DO NOT APPLY POWER TO THE BOARD IF IT HAS BEEN
DAMAGED!

2.2 Installation

You are now ready to install your mainboard. The mounting hole pattern of
the S1662 matches the "Baby AT" system board spec. It is assumed that
the chassis is for a standard IBM XT/AT form factor.

6S1662-AT-001 http://www.tyan.com

3. On Board Resource Setting

Figure 3.1 S1662 Board Layout

Con7

PCI Slot 3

PCI Slot 4

pin 1

KB CTR

ISA Slot 3

ISA Slot 2

PCI Slot 5

ISA Slot 1

82371SB

pin 1

J18

pin 1

J19

PCI Slot 2

Com2
Com1

1 1

Floppy Con.

1 1

PCI Slot 1

Secondary IDE

PS/2
Mouse
Header

1

PWR CON. 5V

1

Parallel Port

USB2

Primary IDE

Keyboard
CON

USB1

J1

BIOS
AMI/AWARD

J9

pin 1

RTC

pin 1

J5

pin 1

J7

pin 1

VRM 1

pin 1

Con6

J48 J47

Bank 3

J44 J45

Bank 3

J34

pin 1

Bank 2

Bank 2

J31 J30 J29J33J43J46

pin 1

J32

Bank 1

J27
J28

Bank 1

Bank 0

J24

82442FX

J25

82441FX

Bank 0

J20
J21
J22
J23

J17

Socket 8

U9

Only available on
S1662D

Socket 8

U10

J14
J15

VRM 0

J49

J50

J10

CPU 1CPU 0

pin 1
pin 1

pin 1

7S1662-AT-001 http://www.tyan.com

3.2 Quick Reference for Jumpers
CPU Speed: J32, J27, J24, J28 and J25

CPU Speed J32 J27 J24 J28 J25 J15 J14
150MHz 3-4 off on on on on off
166MHz 1-2 off on on on off on
180MHz 3-4 on off on on on off
200MHz 1-2 on off on on off on

Host Bus Speed/PCI Bus Speed: J32

Host Speed PCI Speed J32 J15 J14
60MHz 30MHz 3-4 on off

66.67MHz 33.33MHz 1-2 off on

CPU Clock Multiplier: J27, J24, J28 and J25

Multiplier J27 J24 J28 J25
X2 on on on on
X2.5 off on on on
X3 on off on on
X3.5 off off on on
X4 on on off on

CMOS Resest/Password Reset: J5(Default off)

If you forget your CMOS password or need to reset the
CMOS registers, just power off the system and close
jumper J5for five seconds. Then open jumper J5 and
power on the system. This will set the CMOS and password
back to the system default.

DRAM Voltage: J20, J21, J22, J23, J44, J45, J47,and J48.

Default is 5V(Some EDO memory is 3.3V)
Voltage J20 J21 J22 J23 J44 J45 J47 J48

3.3V on on on on off off off off
5V off off off off on on on on

Warning, damage to system can result if set incorrectly!

8S1662-AT-001 http://www.tyan.com

Primary CPU Select:J49 and J50

J49 J50

U10 socket as Primary/Dual/Single CPU 1-2 2-3Default

U9socket as a Single CPU system 2-3 1-2

Speaker Connector: J33

Pinout Assignments
1 Speaker out
2 Ground
3 Ground
4 + 5V

Keylock Connector: J31

Pinout Assignments

Pins 1 to 3 for power LED. 1 Led Output

2 No Connect
3 Ground

Pins 4 and 5 for Keylock 4 Keylock

5 Ground

Turbo Switch: J30 ( Non-Turbo Mode Not Supported )

HDD LED: J43

Pinout Assignments
1 Cathode
2 Anode
3 Cathode
4 Anode

Pins 1 and 2 are for primary IDE channel.
Pins 3 and 4 are for secondary IDE channel.

9S1662-AT-001 http://www.tyan.com

Reset Connector: J46

Pinout Assignment
1 Power Good
2 Ground

Turbo LED Connector: J29

Pinout Assignment
1 Cathode
2 Anode

Flash EEPROM: J9(Default 5V)

This jumper should be left at the factory default.

Voltage J9
5V 1-2 (default)
12V 2-3

InfraRed Interface: Con6 and Con7

Pinout Assignment
1 Signal In
2 Gound
3 Signal Out
4 VCC

Super I/O Type: J34

This setting depends on what type of SMC I/O chip
is installed on the board. This jumper is set at the
factory and should not be changed.

Type J34
665IR 1-2
669IR 2-3

10S1662-AT-001 http://www.tyan.com

I/O Selection: J19 & J18

J19 J18
For COM 1 and 2 1-2 1-2 Default
For InfraRed 2-3 2-3

3.3 CMOS RTC

CMOS RTC includes an internal battery and Real Time Clock circuit. It
provides the date and the time for the system. Normally the life span of a
RTC internal battery is 10 years. When replacing, you should use the same
model.

3.4 Speaker Connector Installation

S1662 provides a 4-Pin header (J33) to connect the speaker. The polarity
can go either way.

3.5 Turbo Switch

The front panel on your case may have a turbo switch to control system
speed when slower program execution is required for software developed
in the old XT days.

The Intel 440FX chipset doesn't support a de-turbo mode, but the S1662
has a connector (J30) for the cable that may come with the case.

3.6 Turbo LED Connector Installation

The TURBO LED on the front case panel can indicate the current speed
status of the system. The TURBO LED connector should be installed to
J29 in the correct direction.

11S1662-AT-001 http://www.tyan.com

3.7 Hardware Reset Switch Connector Installation

The RESET switch on your cases' display panel provides users with the
HARDWARE RESET function which is the same as power on/off. The
system will do a cold start after the RESET switch is pushed by the user.
The RESET switch is a 2 pin connector and should be installed on jumper
J46.

3.8 Flash EEPROM-Jumper J9

The S1662 uses flash memory to store BIOS data. It can be updated as new
versions of the BIOS becomes available. The flash utility will guide you
through the process step by step. If your system is functioning properly,
you may want to forego updating your BIOS in the event the new one
causes problems with your existing hardware and software.

J9 determines which type of EEPROM is used. This jumper has been set
to match the on board BIOS chip. The factory default for the S1662 is on
pins 1-2.

Refer to chapter 5 for Flash EEPROM upgrade procedures.

3.9 Hardware CMOS & Password Reset

(The following steps are valid provided the board has a DS12887A RTC)

If you have been locked out of your system because you forgot your pass­word or set the CMOS incorrectly, follow the instructions below.

a. Power off the system

b. Short jumper J5.

c. Wait for 5 seconds then remove the jumper from J5.

d.Then power on the system again.

By doing the above procedures, your password will be erased and the CMOS
will be reset to the BIOS defaults.

12S1662-AT-001 http://www.tyan.com

3.10 DRAM Installation

The S1662 uses a 64-bit data path from memory to CPU and can
accommodate up to 1024 MB of RAM. The mainboard supports
standard, EDO (Extended Data Out) ECC(Error Correcting Code) and
BEDO(Burst EDO)72 pin SIMMS . All installed memory will be auto­matically detected so there is no need to set jumpers.

wSIMM modules must be installed in pairs.

wEach pair of SIMMs must be of the same size and type.

wThe mainboard supports 1, 2, 4, 8,16, 32MBx32(x36) SIMMS.

wThe table on the following page shows some of the available memory

configurations.

Voltage ID for Older Pentium Pro CPU's: J7 and J10

Most Pentium Pro CPU's will program the VRM to output
the correct voltage it requires, so these jumper are not important
and should be left open. Some early versions of the Pentium Pro
cannot program the VRM so you have to set these jumper manually.

J7 and J10 each have eight pins and are numbered as follows.
5 6 7 8

Pin # 4--8 3-7 2-6 1-5

3.5V on on on on

3.4V on on on off

3.3V on on off on

1 2 3 4

3.2V on on off off

3.1V on off on on

3.0V on off on off

2.9V on off off on

2.8V on off off off

2.7V off on on on

2.6V off on on off

2.5V off on off on

2.4V off on off off

2.3V off off on on

2.2V off off on off

2.1V off off off on

Default off off off off

13S1662-AT-001 http://www.tyan.com

Memory Table

Bank 0 Bank 1 Bank 2 Bank 3 Total

4MB x2 none none none 8MB
8MB x2 none none none 16MB
4MB x2 4MB x2 none none 16MB
8MB x2 8MB x2 none none 32MB

4MB x2 4MB x2 4MB x2 4MB x2 32MB
16MB x2 none none none 32MB
16MB x2 16MB x2 none none 64MB
32MB x2 none none none 64MB
64MB x2 none none none 128MB
16MB x2 16MB x2 16MB x2 16MB x2 128MB
32MB x2 32MB x2 none none 128MB
32MB x2 32MB x2 32MB x2 none 192MB
32MB x2 32MB x2 32MB x2 32MB x2 256MB
64MB x2 64MB x2 none none 256MB

128MB x2 none none none 256MB

64MB x2 64MB x2 64MB x2 none 384MB
64MB x2 64MB x2 64MB x2 64MB x2 512MB

128MB x2 128MB x2 none none 512MB
128MB x2 64MB x2 64MB x2 64MB x2 640MB
128MB x2 128MB x2 128MB x2 none 768MB
128MB x2 128MB x2 64MB x2 64MB x2 768MB
128MB x2 128MB x2 128MB x2 32MB x2 832MB
128MB x2 128MB x2 128MB x2 64MB x2 896MB
128MB x2 128MB x2 128MB x2 128MB x2 1024MB

14S1662-AT-001 http://www.tyan.com

3.11 CPU Installation

Many types of Pentium Pro (150 thru 200 MHz) CPUs can be used on
the S1662. Please refer to the previous pages for the correct CPU jumper
settings for your board.

w The CPU is a sensitive electronic component and it can be easily
damaged by static electricity. Do not touch the CPU pins with your
fingers.

w When installing the CPU into the socket, match the CPU pins to the
socket pins.

w Before the CPU is installed, the mainboard must be placed on a flat

plane in order to avoid being broken by the pressure of CPU insertion.

w A cooling fan and heat sink assembly is required to protect the
CPU from being damaged.

1. Make sure the ZIF socket lever is up. To raise the lever, pull it out
to the side a little and raise it as far as it will go. The top plate will
slide back.

2. Align the CPU and socket Pin 1 corners. The pins on the bottom
of the CPU should align with the rows of holes in the socket.

3. Insert the CPU in the socket. It should insert easily. If it does
not, adjust the position of the lever a little.

4. Press the lever down. The top plate will slide forward. You will
feel some resistance as the pressure starts to secure the CPU in
the socket. This is normal and will not damage the CPU.
When the CPU is installed, the lever should snap into place at the
side of the socket in the down position..

15S1662-AT-001 http://www.tyan.com

3.12 VRM Installation

The VRM is required for the Pentium Pro to work. The CPU will
program the VRM for the correct voltage needed. No jumper settings
are needed, just install the VRM into the VRM socket nearest the
CPU that is being installed. The VRM can only fit in the socket one
way so there is no danger of installing it incorrectly. Not all VRM's
will work in the S1662. Make sure you purchased a qualified VRM.

w VRM socket 0 is for CPU socket 0.

w VRM socket 1 is for CPU socket 1.

3.13 Peripheral Device Installation

After all the jumpers on the mainboard have been set, then it can be mounted
into the case. Then proceed to install the display card and any other
peripheral devices.

If a PCI-Bus interface card is to be installed in the system, any one of the
five PCI-Bus slots can support either a Master or a Slave device.

After installing the peripheral controllers, the user should check everything
again, and prepare to power-on the system.

16S1662-AT-001 http://www.tyan.com

3.14 Connecting the Power Supply

The system power supply connectors on the mainboard is for a 5 volt
power supply. Incorrect installation of the power supply could result in
serious damage to the system board and connected peripherals.

Pin 1

Good Power Signal

VCC

+12V

-12V
GND

GND
GND

GND

-5V
VCC

VCC
VCC

5 volt

power

connector

pinout

To connect the leads from either voltage power supply, you should first
make sure the power supply is unplugged. Most power supplies have two
leads. Each lead has six wires, two of which are black.

Orient the connectors so the black wires are in the middle of the
5V power supply.

Caution: Some power supplies also include "3V" connectors. The
connection wires normally have two colors with 3 black wires on
one side. Please be very careful. Don't to use the wrong connec­tor.

17S1662-AT-001 http://www.tyan.com

Align the plastic guide pins on the lead cables to their receptacles on the
mainboard. You may need to hold the lead at an angle to line it up.Once
you have the guide pins aligned, press the lead connector so that the
plastic clips on the lead snap into place and secure the lead to the connec­tor.

Connecting 5V power supply

18S1662-AT-001 http://www.tyan.com

4. BIOS Configuration

Award's BIOS has a built in setup program that allows the user to modify
the basic system configuration. This type of information is stored in the
battery-backed CMOS SRAM. Entering incorrect information or for-

getting your password can lock you out of your system.(refer to 3.9
for resetting of CMOS)

4.1. Entering Setup

Power ON the computer and press <Del> immediately and you will 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

If the message disappears before you respond and you wish to enter Setup,
restart the system by turning it OFF then ON or by pressing "Reset" on the
system case. You may also restart by simultaneously pressing <Ctrl>, <Alt>,
and <Del> keys. If you do not press the keys at the correct time, the
system will not boot and an error message will appear on the screen.You
will be asked to,

* PRESS F1 TO CONTINUE, CTRL-ALT-ESC OR DEL TO
ENTER SETUP.

Figure 4.1 will appear on the sceen. The Main Menu allows you to select
from the 8 setup functions and 2 exit choices. Use the arrow keys to select
among the items and press <Enter> to accept or enter each sub-menu.

19S1662-AT-001 http://www.tyan.com

4.2. Control Keys

PgUp key Increases the numeric value or make changes

PgDn key Decreases the numeric value or make changes
F1 key General help, only for Status Page Setup menu

and Option Page Setup Menu
F2 key Change color from a total of 16 colors
F3 key Calendar, only for Status Page Setup Menu
F4 key Reserved
F5 key Restore the previous CMOS value, only for Option

Page Setup Menu
F6 key Load defaults
F8 key Reserved
F9 key Reserved
F10 key Save all CMOS changes, only for Main Menu

20S1662-AT-001 http://www.tyan.com

4.3. Getting Help

4.3.1. Main Menu

The on-line description of the highlighted setup function is displayed at the
bottom of the screen.

4.3.2. Setup Page menu/Option Page Setup Menu

Press F1 to pop up a small help window that describes the appropriate keys
to use and the possible selections for the highlighted items. To exit the Help
Window, press <Esc>.

4.4. The Main Menu

Once you enter the Award BIOS CMOS Setup Utility, the Main Menu
(Figure 4.4) will appear on the screen. The Main Menu allows you to
select from the eight setup functions and 2 exit choices. Use the arrow
keys to select among the items and press <Enter> to accept or enter the
sub-menu.

Figure 4.4: Main Menu

ROM ISA BIOS (2A59CT51)

CMOS SETUP UTILITY

AWARD SOFTWARE, INC.

STANDARD CMOS SETUP INTEGRATED PERIPHERAL

BIOS FEATURED SETUP SUPERVISOR PASSWORD

CHIPSET FEATURES SETUP USER PASSWORD

POWER MANAGEMENT IDE HDD AUTO DETECT

PNP/PCI CONFIGURATION SAVE AND EXIT

LOAD BIOS DEFAULTS EXIT WITHOUT SAVING

ESC : Save & Exit Setup
F10 : Quit

:Select Item

(Shift)F2 :Change Color

Time, Date, Hard Disk Type,.....

21S1662-AT-001 http://www.tyan.com

ww Standard CMOS setup

This setup page includes all the items in a standard compatible BIOS.

ww BIOS features setup

This setup page includes all of the enhanced features of Award's BIOS.

ww Chipset features setup

This setup page includes all the items of the 430HX chipset features.

w Power Management setup
Change, set, or disable system power management options

ww PNP/PCI Configuration

This setup page allows you to modify the configuration of PCI slot
parameters.

ww Load setup defaults

BIOS defaults indicate the most appropriate values of each system param­ eter for your system.

ww Supervisor/User Password

Change, set, or disable password. It allows you to limit access to the
system and Setup.

ww Integrated Peripherals
This option lets the you enable or disable on board FDD, HDD,

and I/O options.

ww IDE HDD auto detection

Automatically configure hard disk parameters.

ww Save and exit setup

Save changes to CMOS and exit setup

ww Exit without saving

Abandon all CMOS changes and exit setup.

22S1662-AT-001 http://www.tyan.com

4.5. Standard CMOS Setup Menu

The items in Standard CMOS Setup Menu (Figure 4.5) are divided into 9
categories. Each category includes one or more setup items. Use the
arrows to highlight the item and use the <PgUp> or <PgDn> keys to
select the value you want for each item.

Figure 4.5: Standard CMOS Setup Menu

ROM ISA BIOS (2A59CT51)

STANDARD CMOS SETUP

AWARD SOFTWARE, INC.

Date (mm:dd:yy) : Tue, Dec 7 1995
Time (hh:mm:ss) : 18 : 01 : 38

Type Size CYLS. HEADS. PRECOMP. LANDZONE SECTORS
Primary Master : none 0mb 0 0 0 0 0
Primary Slave: none 0mb 0 0 0 0 0
Secondary Master: none 0mb 0 0 0 0 0
Secondary Slave: none 0mb 0 0 0 0 0
Drive A : 1.44 M, 3.5 in.
Drive B : 1.2 M, 5.25 in.

Video : EGA/VGA

Halt On : All errors

Base Memory: 640 K
Extended Memory: 7168 K
Expanded Memory: 0 K
Other Memory: 384 K

Total Memory: 8192 K

ESC: Quit : Select Item PU/PD/+/-: Modify
F1: Help (Shift)F2: Change Color F3: Toggle Calendar

ww Date

The date format is <month>, <day>, <year>. Press <F3> to show the
calendar.

ww Time

The time format is <hours>, <minutes>, <seconds>. The time is calcu­ lated based on the 24-hour military-time clock. For example 1 p.m. is
13:00:00.

Day The day, from Sun to Sat, Determined by the BIOS date,

month and year entries.
Date The date, from 1 to 31 (or maximum allowed in a month)
Month The month, Jan to Dec.
Year The year, from 1900 to 2099

23S1662-AT-001 http://www.tyan.com

ww Primary/Secondary Drive type

This category identifies the types of hard disk drives that have been in­stalled in the computer. There are 46 predefined types and a user definable
type.

Press PgUp or PgDn to select a numbered hard disk type or type a 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 type is not listed,
you can Type User to define your own drive manually.

If you select Type User, you will be asked to enter the following info. Enter
the parameters directly from the keyboard and press <Enter>. The hard
disk information should be provided in the documentation from the hard disk
vendor or the system manufacturer.

CYLS number of cylinders
HEADS number of heads
PRECOMP written precom
LANDZONE landing zone
SECTORS number of sectors
Mode Normal Access mode for IDE drives under 528MB
Mode LBA Access mode for EIDE drives over 528MB
Mode Large Access mode for IDE drives over 528MB that don't

support LBA

If a SCSI hard disk has been installed or you have a CD-ROM/Tape
drive connected to an IDE channel, select NONE and press<Enter>.

ww Drive A type/Drive B type

This category identifies the types of floppy disk drive A or B, that
have been installed in your computer.

None No floppy drive installed
360K, 5.25 in. 5-1/4 inch PC-type standard drive; 360 kilobyte capacity

1.2M,5.25 in. 5-1/4 inch AT-type high-density drive; 1.2 megabyte capacity
720K, 3.5 in. 3-1/2 inch double-sided drive; 720 kilobyte capacity

1.44M, 3.5 in. 3-1/2 inch double-sided drive; 1.44 megabyte capacity

2.88M, 3.5 in. 3-1/2 inch double-sided drive; 2.88 megabyte capacity

24S1662-AT-001 http://www.tyan.com

ww Video

This category detects the type of graphics adapter used for the primary
display system. It must match your video display card and monitor. Al­though secondary monitors are supported, you do not have to select that
type in setup.

EGA/VGA Enhanced Graphics Adapter/Video Graphics Array.

For VGA,SVGA, or PGA monitor adapters.
CGA 40 Color Graphics Adapter, power up in 40 column mode.
CGA 80 Color Graphics Adapter, power up in 80 column mode.
Mono Monochrome adapter, includes hi-res monochrome.

ww Halt On

The category determines whether the computer will stop if an error is
detected during power up.

All errors Whenever the BIOS has detected a non-fatal error, the

system will be stopped and you will be promted.
No errors The system boot will not be stopped for any errors that

are detected.
All, but Keyboard The system boot will not stop for a keyboard error;it

will stop for all other errors.
All, but Diskette The system boot will not stop for disk errors; it will

stop for all other errors.
All, but Disk/Key The system boot will not stop for a keyboard or disk

error; it will stop for all other errors.

ww Memory

The category is for display-only and it is determined by POST Power On
Self Test of the BIOS.

Base Memory

The POST of the BIOS will determine the amount of

base (or conventional) memory installed in the system.

The value of the base memory is typically 640K.

Extended Memory

The BIOS determines how much extended memory is

present during the POST. This is the amount of

memory located above 1MB in the CPU's memory

address map.

25S1662-AT-001 http://www.tyan.com

Expanded Memory

Expanded Memory (EMS) defines a 64 K page frame in

the area between 640K and 1Mb containing four 16K pages

that are windows into the EMS memory. Programs issue

requests to the EMS manager to switch the page to any

part of EMS memory. Extended memory can be converted

to emulate EMS by using a memory manager such as

EMM386 that ships with Windows and DOS.

Other Memory

This refers to memory located in the 640K to 1024K ad

dress space. This memory can be used for different

applications. DOS uses this area to load device drivers to

keep as much conventional memory free for application

programs as possible.

4.6. BIOS FEATURES SETUP

ROM ISA BIOS

BIOS FEATURES SETUP

AWARD SOFTWARE, INC.

Virus Warning :Enabled
CPU Internal Cache :Enabled
External Cache :Enabled
Boot Sequence :A,C
Swap Floppy Drive :Disabled
Boot Up Floppy Seek :Enabled
Boot Up NumLock Status :On
Memory Parity Check :Enabled
Gate A20 Option :Fast
Typematic Rate Setting :Disabled
Typematic Rate (Chars/sec) :6
Typematic Delay (msec) :250
Security Option :Setup
PS/2 mouse function :Disabled
PCI/VGA Palette Snoop :Disabled

Video BIOS Shadow :Enabled
C8000-CBFFF Shadow :Disabled
CC000-CFFFF Shadow :Disabled
D0000-D3FFF Shadow :Disabled
D4000-D7FFF Shadow :Disabled
D8000-DBFFF Shadow :Disabled
DC000-DFFFF Shadow :Disabled

ESC :Quit :Select Item

F1 :Help PU/PD/+/- :Modify
F5 :Old Values (Shift)F2 :Color
F6 :Load BIOS Defaults
F7 :Load Setup Defaults

26S1662-AT-001 http://www.tyan.com

ww Virus warning

This category flashes on screen. During and after the system boot up,
any attempt to write to the boot sector or the partition table of the hard
disk drive will halt the system and the following error message will
appear. In the meantime, you can run an anti-virus program to locate the
problem. Default value is Enabled.

Enabled Activate automatically when the system boots up causing a warning

message to appear when anything attemps to access the boot sector
or hard disk partition table.

Disable No warning message to appear when anything attemps to access the

boot sector or hard disk partition table.

ww CPU Internal Cache/External Cache

These two categories speed up the memory access. However, it de­ pends on the CPU/Chipset design. Default value is Enabled.

Enabled Enables the cache
Disabled Disables the cache

ww Boot Sequence

This category determines which drive the computer searches first for the
disk operating system (i.e. DOS). Default value is A,C.

A,C System will first search for floppy disk drive then hard disk drive.
C,A System will first search for hard disk drive then floppy disk drive

ww Swap Floppy Drive

Default value is Disabled

Enabled Floppy A & B will be swapped under DOS
Disable Floppy A & B will be normal definition.

27S1662-AT-001 http://www.tyan.com

ww Boot Up Floppy Seek

During POST, the BIOS will determine if the floppy disk drive installed is
40 or 80 tracks. 360K type is 40 tracks while 720K, 1.2M and 1.44M
are all 80 tracks. Default value is Enabled

Enabled BIOS searches for floppy disk drive to determined if it is 40 or 80

tracks. Note that the BIOS cannot tell from 720k, 1.2M or 1.44M
drive type as they are all 80 tracks

Disabled BIOS will not search for the type of floppy disk drive by track

number. Note that there will not be any warning messages if the
drive installed is 360K

ww Boot Up NumLock Status

Default value is On

On Keypad is number keys
Off Keypad is arrow keys

ww Memory Parity Check

The default value is disabled

ww Gate A20 Option

Gate A20 controls the ability to access memory addresses above 1 MB
by enabling (Fast) or disabling (Normal) access to the processor.
Default value is Fast

ww Typematic Rate Setting, Typematic Rate (char/sec), and
Typematic Delay.

Typematic Rate Setting enables or disables the following two options.
TheTypematic Rate (6, 8, 10, 12, 15, 20, 24, or 30 characters per second)
and Typematic Rate Delay (250, 500, 750, or 1000 milliseconds) controls
the speed at which the keystroke is repeated. The selected character is
displayed when a key is held down after a delay set by the Typematic
Rate Delay. It then repeats at a rate set by the Typematic Rate.

28S1662-AT-001 http://www.tyan.com

ww Security Option

This category allows you to limit access to the system setup, or just
setup. Default value is Setup

System The system will not boot and access to Setup will be denied if the

correct password is not entered at the prompt

Setup The system will boot, but access to setup will be denied if the

password is not entered at the prompt

ww PS/2 Mouse Function

Enables or disables PS/2 mouse function. Default is Disabled.

ww PCI/VGA Palette Snooping

The purpose of this option is to allow multiple VGA devices on

different busses in a system to have data written from CPU to each
set of palette registers of every video device. Default is disabled.

ww Video BIOS Shadow

It determines whether Video BIOS will be copied to RAM, however, it
is an optional chipset design. Default is Enabled.

4.7 Chipset Features Setup

This screen controls the settings for the board's chip set. The controls for
this screen are the same as the previous screen. They should not be
changed unless you are familiar with the chipset.

The Chipset Features Screen

ROM ISA BIOS

CHIPSET SETUP UTILITY

AWARD SOFTWARE, INC.

Auto Configuration :Enable
DRAM Speed Selection :70ns
DRAM RAS# Precharge Time :4
MA Additional Wait State :Enable
RAS# to CAS# Delay :Enable
DRAM Read Burst(B/E/F) :x1/2/3
DRAM Write Burst(B/E/F) :x2/2/3
ISA Bus Clock :PCICLK/4
DRAM Refresh Queue :Disable
DRAM RAS# Only Refresh :Disable
ECC Checking/Generation :Disable
Fast DRAM Refresh :Disable
Read-Around-Write :Disable
PCI Burst Write Combine :Disable
PCI to DRAM Pipline :Disable
CPU to PCI Write Post :Disable
CPU to PCI IDE Post :Disable
System Cacheable :Enable
Video Cacheable :Enabled

8 bit I/O Recovery Time :1
16 bit I/O Recovery Time :1
Memory Hole at 15-16M :Disable

More Information on these settings
can be found at Tyan's web site.
http://www.tyan.com

ESC :Quit :Select Item

F1 :Help PU/PD/+/- :Modify
F5 :Old Values (Shift)F2 :Color
F6 :Load BIOS Defaults
F7 :Load Setup Defaults

29S1662-AT-001 http://www.tyan.com

4.7.1 Power Management Setup

ROM ISA BIOS

POWER MANAGEMENT SETUP

Power Management :Disabled IRQ3 (Com2) :Off
PM Control By APM :No IRQ4 (Com1) :Off
Video Off Method :Blank Screen IRQ5 (LPT2) :Off

Doze Mode :Disabled IRQ7 (LPT1) :Off
Standby Mode :Disabled IRQ8 (RTC Timer) :Off
Suspend Mode :Disabled IRQ9 (IRQ2 Redir) :Off
HDD Power Down :Disabled IRQ10 (Reserved) :Off

IRQ3 (Wake-Up Event) :Off IRQ12 (PS/2 Mouse) :Off
IRQ4 (Wake-Up Event) :Off IRQ13 (Coprocessor) :Off
IRQ8 (Wake-Up Event) :Off IRQ14 (Hard Disk) :Off
IRQ12 (Wake-Up Event) :Off IRQ15 (Reserved) :Off

AWARD SOFTWARE, INC

IRQ6 (Floppy Disk) :Off

IRQ11 (Reserved) :Off

wwPower Management

Options are disabled, user defined, Min saving, and Max saving.

wwPM Control by APM(Advanced Power Management)

Options are "Yes" and "No". When set for "No", system BIOS will
ignore APM when power managing the system. If set on "Yes" the
system BIOS will wait for APM's prompt before it enters any PM
mode, e.g. Doze, Standby or Suspend.

wwVideo Off Method

The "Blank Screen" option will let the system BIOS blanks the screen
when disabling video. V/H SYNC+Blank will let the BIOS turn off the
V-SYNC and H-SYNC signals from the VGA card to the monitor.

30S1662-AT-001 http://www.tyan.com

wwDoze Mode

Defines the continous idle time before the system enters Doze mode.

wwStandby Mode

Defines the continous idle time before the system enters Standby mode.

wwPower Down Activities

Defines the the activities that can cause the PM timers to reload. (Break­ing out of PM Mode)

31S1662-AT-001 http://www.tyan.com

4.8 PCI Slot Configuration

PCI/PNP Configuration

AWARD SOFTWARE, INC.

ROM ISA BIOS

Resource Controlled by :Manual
Reset Configuration :Disabled

IRQ3 assigned to :legacy ISA
IRQ4 assigned to :legacy ISA
IRQ5 assigned to :PCI/PnP
IRQ7 assigned to :legacy ISA
IRQ9 assigned to :PCI/PnP
IRQ10 assigned to :PCI/PnP
IRQ11 assigned to :PCI/PnP
IRQ12 assigned to :PCI/PnP
IRQ14 assigned to :legacy ISA
IRQ15 assigned to :legacy ISA
DMA0 assigned to :PCI/PnP
DMA1 assigned to :PCI/PnP
DMA3 assigned to :PCI/PnP
DMA5 assigned to :PCI/PnP
DMA6 assigned to :PCI/PnP
DMA7 assigned to :PCI/PnP

w PCI Slot 1/Slot 2/Slot 3/Slot 4/Slot 5 INT#
w For Default Setting.
Connect to PCI System INT#
PCI Slot1 INTA INTA
PCI Slot1 INTB INTB
PCI Slot1 INTC INTC
PCI Slot1 INTD INTD
PCI Slot2 INTA INTB
PCI Slot2 INTB INTC
PCI Slot2 INTC INTD
PCI Slot2 INTD INTA
PCI Slot3 INTA INTC
PCI Slot3 INTB INTD
PCI Slot3 INTC INTA
PCI Slot3 INTD INTB
PCI Slot4 INTA INTD
PCI Slot4 INTB INTA
PCI Slot4 INTC INTB
PCI Slot4 INTD INTC
PCI Slot5 INTA INTA
PCI Slot5 INTB INTB
PCI Slot5 INTC INTC

PCI Slot5 INTD INTD

PCI IRQ Activated By: Level
PCI IDE IRQ Map To: Auto
Primary IDE INT#: A
Secondary IDE INT#: B

ESC: Quit :Select Item
F1 : Help PU/PD/+/- :Modify
F5 : Old Values (Shift)F2 :Color
F6 : Load BIOS Defaults
F7 : Load Setup Defaults

32S1662-AT-001 http://www.tyan.com

wwResources Controlled By

The Award Plug and Play BIOS can automatically configure all the boot
and Plug and Play compatible devices. If you seelect Auto, all the
interrupt request and DMA assignment fields disappear, as the BIOS
automatically assigns them.

wwIRQ n assigned to

When resources are controlled manually, assign each system interrupt
as one of the following types, depending on the type of device using
the interrupt.

Legacy ISA
Devices compliant with the original PC AT bus specification.

PCI/ISA PnP
Devices compliant with the Plug and Play standard, whether designed
for the PCI or ISA bus architecture.

wwPCI IRQ Activated By:
Select the PCI IRQ Active scheme either LEVEL or EDGE.
Default value is LEVEL.

wwPCI IDE IRQ Map To:
Select the IDE IRQ Map to ISA IRQ#.

wwPrimary IDE INT#
Select the PCI INT# that the Primary IDE controller will use.
Default value is A.

wwSecondary IDE INT#
Select the PCI INT# that the Secondary IDE controller will use.
Default value is B

33S1662-AT-001 http://www.tyan.com

4.9 Integrated Peripherals

Integrated Peripherals
Award Software, Inc.

IDE HDD Block Mode :Enabled
IDE Primary Master PIO :Auto
IDE Primary Slave PIO :Auto
IDE Secondary Master PIO :Auto
IDE Secondary Slave PIO :Auto
On-Chip Primary PCI-IDE :Enable
On-Chip Secondary PCI-IDE :Enable
PCI Slot IDE 2nd Channel :Enable

On-Board FDC Controller :Enable
On-Board Serial Port 1 :Com1/3F8
On-Board Serial Port 2 :Com2/2F8
On-Board Parallel Port :378/IRQ7
Parallel Port Mode :Normal

The Settings in the Integrated Peripherals lets the user enable or
disable on-board device. You can also configure the I/O and IRQ
settings of the on-board serial and parallel ports.

34S1662-AT-001 http://www.tyan.com

4.10. LOAD SETUP DEFAULTS

ROM ISA BIOS

CMOS SETUP UTILITY

AWARD SOFTWARE INC.

STANDARD CMOS SETUP PASSWORD SETTING

BIOS FEATURES SETUP IDE HDD AUTO DETECTION

CHIPSET FEATURES SETUP DAVE & EXIT SETUP

PCI SLOT configuration EXIT WITH OUT SAVING

LOAD SETUP DEFAULTS

ESC : Save & Exit Setup
F10 : Quit

Load SETUP Defaults except standard CMOS SETUP

Load Setup Defaults (Y/N)? N

:Select Item

(Shift)F2 :Change Color

ww Load SETUP defaults

To load SETUP default values to CMOS SRAM, enter "Y". If not,
enter "N"

ww If any problem has occurred, loading the SETUP DEFAULTSis
recommended.

4.10. PASSWORD SETTING

When you select this function, the following message will appear at the
center of the screen to assist you in creating a password.

ENTER PASSWORD

35S1662-AT-001 http://www.tyan.com

ROM ISA BIOS

CMOS SETUP UTILITY

AWARD SOFTWARE, INC.

STANDARD CMOS SETUP PASSWORD SETTING

BIOS FEATURES SETUP IDE HDD AUTO DETECTION

CHIPSET FEATURES SETUP DAVE & EXIT SETUP

PCI SLOT CONFIGURATION EXIT WITH OUT SAVING

LOAD SETUP DEFAULTS

ESC : Save & Exit Setup
F10 : Quit

Enter Password

:Select Item

(Shift)F2 :Change Color

Change/Set/Disable Password

Type the password, up to eight characters, and press <Enter>. The
password typed now will clear the previously entered password from
CMOS memory. You will be asked to confirm the password. Type the
password again and press <Enter>. You may also just press <Esc> to
abort the selection and not enter a password.

To disable the password, just press <Enter> when you are prompted to
enter a password. A message will confirm that the password has been
disabled, the system will boot and you can enter Setup freely.

PASSWORD DISABLED

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.

36S1662-AT-001 http://www.tyan.com

4.11. IDE HDD AUTO DETECTION

ROM ISA BIOS

CMOS SETUP UTILITY

AWARD SOFTWARE, INC.

CYLS. HEAD PRECOMP LANZONE SECTORS

Drive C: (202 Mb) 989 12 65535 989 35

Do you want to accept this as drive C (Y/N)?

Esc:Skip

Type "Y" to accept the H.D.D parameter reported by BIOS. Type "N" to keep the old
H.D.D parameter info.

4.12. SAVE & EXIT SETUP

ROM ISA BIOS

CMOS SETUP UTILITY

AWARD SOFTWARE, INC.

STANDARD CMOS SETUP PASSWORD SETTING

BIOS FEATURES SETUP IDE HDD AUTO DETECTION

CHIPSET FEATURES SETUP DAVE & EXIT SETUP

PCI SLOT CONFIGURATION EXIT WITH OUT SAVING

Save to CMOS and EXIT (Y/N)? N

LOAD SETUP DEFAULTS

ESC : Save & Exit Setup
F10 : Quit

(Shift)F2 :Change Color

:Select Item

Type "Y" and you will quit the Setup Utility and save the user setup values
to RTC CMOS SRAM. Type "N" to return to Setup Utility.

37S1662-AT-001 http://www.tyan.com

5.0 Flash Writer Utility

You can upgrade the BIOS of your mainboard by using a "Flash
Memory Writer"(FMW) utility. This utility can be downloaded from the
factory's BBS(Consult your system vendor for the phone #). The
system BIOS is stored on a 'flash' EPROM chip on the mainboard
which can be erased and reprogrammed by the FMW.
The following three files make up the FMW.

AWDFLASH.EXE -The Flash Memory Writer utility for

Award to Award upgrade.

AMIFLASH.COM -The Flash Memory Writer utility for

AMI to AMI upgrade.

README -A text file of instructions
*S62AWXX.BIN -XX-A 2-digit version number.

Flash memory writer records (or ‘programs’) a new BIOS
onto the flash memory chip. You cannot upgrade an Award
BIOS to a AMI BIOS or a AMI BIOS to an Award BIOS.

*This file name is subject to change and can have either a "bin" or a
"rom" extension.

38S1662-AT-001 http://www.tyan.com

To reprogram the System BIOS, you must first do the following:

1. Check jumper J9(default pins 1-2)

The S1662 uses a 5V Flash EPROM so jumper J9
should be left in the default postion on pins 1 and 2. These
jumpers should never be moved.

2. Make sure the CPU is running in ‘real mode’.

FMW will not run if the CPU is operating in a protected or
virtual mode. This means that you can not run it with Windows
running or with any memory manager software. You must
disable any memory manager first. The easiest way to do this
is to:

a. Boot your system from a bootable floppy disk with no
CONFIG.SYS or AUTOEXEC.BAT files, and then run Flash
Memory Writer from a backup copy of your support disk. You
can make your back-up floppy bootable when you format it, and
use one disk for both purposes.

b. If you are using MS-DOS 6.x, you can use the feature that
allows you to bypass the CONFIG.SYS and AUTOEXEC.BAT

file. You do this while pressing <F5> while the “Starting MS-

DOS...” line is on the screen.

There are other ways to accomplish the same result. The main
point is to make sure no memory managers are running. If you
are not sure, try running FMW. If it runs, then you have suc­ceeded. If it displays a warning message about the CPU
mode, you will have to try again.

39S1662-AT-001 http://www.tyan.com

Once you have satisfied the two requirements mentioned above,

you can run FMW. You can copy the contents of the “Flash”
directory to your hard drive, or you can run the utility from a
backupof the support floppy disk. Make sure the new BIOS file
is in thesame directory as the FMW utility.

To run FMW, change to the “Flash” directory if you are not al­ready in it. Type “Awdflash” at the DOS command line and press
the <Enter> key. The following screen will appear.

5.1 The Flash Memory Writer Utility Screen (Award)

FLASH MEMORY WRITER V3.0

Copyright (C) 1993, AWARD Software Inc.,

For FX/HX-2A59CT51 Date:4/13/95

File Name to Program:

Error Message:

Type in the whole file name, e.g. A62AW10.BIN and confirm
that you want to program the BIOS. The utility will then ‘Blank’,
‘Erase’, and then ‘Program’ the flash memory on the mainboard with the
new BIOS file. You should choose “yes” to save the original system
BIOS to a floppy diskette before you program the new BIOS. This
leaves you with a backup of your original BIOS in case you need to re­install it. This option is highly recommended. If you can not sucessfully
program the BIOS file for whatever reason, re-install you original BIOS
from the backup file.

Warning: If you do not successfully install a complete BIOS file
in the flash memory on the Mainboard, your system may not be able to
boot. If this happens, it will require service by your system vendor.
Follow the requirements and instructions in this section precisely to aviod
inconvenience.

40S1662-AT-001 http://www.tyan.com

6.0 System Resource

6.1. TIMER & DMA CHANNEL MAP

TIMER MAP: TIMER Channel-0 system timer interrupt

TIMER Channel-1 DRAM REFRESH request
TIMER Channel-2 SPEAKER tone generator

DMA CHANNELS: DMA Channel-0 Available

DMA Channel-1 Available
DMA Channel-2 FLOPPY DISK adapter
DMA Channel-3 Available
DMA Channel-4 Cascade for DMA controller 1
DMA Channel-5 Available
DMA Channel-6 Available
DMA Channel-7 Available

6.2 INTERRUPT MAP

NMI: Parity check error

IRQ (H/W) 0 System TIMER interrupt from TIMER-0

1 KEYBOARD output buffer full
2 Cascade for IRQ 9-15
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 PS/2 Mouse
13 MATH co-processor
14 Primary IDE
15 Secondary IDE

41S1662-AT-001 http://www.tyan.com