TYAN Single S1662S User manual

Single S1662S/Dual S1662D
Pentium Pro
440FX PCI-ISA System Board
User'sManual
Revision 1.2

2S1662-AT-001 http://www.tyan.com
TableOfContents
1.Introduction.......................................................................3
1.1 Overview................................................................3
1.2Hardware Specifications..........................................4
1.3SoftwareSpecifications.......................................... 5
1.4 Environment........................................................... 5
2.Board Installation.............................................................. 6
2.1 Unpacking.............................................................. 6
2.2 Installation.............................................................. 6
3.S1662OnBoardResourceSettings................................. 7
3.1S1662BoardLayout&Jumper Locations................ 7
3.2 Quick Referencefor Jumpers.................................. 8
3.3 CMOS RTC............................................................11
3.4 Speaker Connector..................................................11
3.5 Turbo Switch.......................................................... 11
3.6Turbo LED Connect................................................11
3.7 Reset Connector..................................................... 12
3.8Flash EPROM Jumpers.......................................... 12
3.9 CMOS & Password Reset...................................... 12
3.10 DRAMInstallation................................................ 13
3.11 CPU Installation.................................................... 15
3.12VRM Installation...................................................16
3.13Peripheral Device Installation.................................16
3.14ConnectingThePower 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
4.5Standard CMOS Setup Menu...................................23
4.6 BIOS Features Setup.............................................. 26
4.7ChipsetFeaturesSetup............................................29
4.7.1PowerManagementSetup........................30
4.8PCI Slot Configuration.............................................32
4.9Integrated Peripherals............................................. 34
4.10 Load Setup Defaults..............................................35
4.11IDE HDD Auto Detection..................................... 37
4.12 Save & Exit Setup.................................................37
5.FlashWriterUtility............................................................38
5.1TheFlashMemoryWriterUtilityScreen...................40
6.System Resources............................................................. 41
6.1Timer & DMA ChannelMap....................................41
6.2 Interrupt Map......................................................... 41

3S1662-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 capabili-
ties that are ideal for a wide range of demanding applications such as:
CAD, CAM, CAE, networking, multi-user environments, database man-
agement, 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: on-
board 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.

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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 inter-
face.
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)

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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
Informationpresentedinthispublicationhasbeencarefullycheckedfor
reliability;however,noresponsibilityisassumedforinaccuracies.The
informationcontainedinthisdocumentissubjecttochangewithout
notice.
Trademarks
AwardBIOS/Flashare trademarks of AwardSoftwareInternationalInc.
AMIBIOS isatrademarks ofAmericanMegatrendsInc.
IBM,PC,AT,PS/2aretrademarksof IBMCorporation
INTEL,PentiumProaretrademarks ofIntelCorporation.
Copyrightc1996TYANComputerCorp.
S1662,TitanProAT.

6S1662-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 compo-
nent. 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.

7S1662-AT-001 http://www.tyan.com
3. On Board Resource Setting
KBCTR PWR CON. 5V
Keyboard
CON
PS/2
Mouse
Header
Con7pin 1
Figure 3.1 S1662 Board Layout
ISA Slot 3
ISA Slot 2
ISA Slot 1
Bank 3 Bank 3 Bank 2 Bank 2 Bank 1 Bank 1 Bank 0 Bank 0
Floppy Con.
Parallel Port
1 1
Secondary IDE
1 1
Com2
Com1
1
1
PCI Slot 1
PCI Slot 2 PCI Slot 3 PCI Slot 5
RTC
BIOS
AMI/AWARD
VRM 0
VRM 1
J31 J30 J29J33J43J46
J48 J47
pin 1
pin 1
pin 1
pin 1
PCI Slot 4
J20
J21
J22
J23
J24
J27
J25
J28
pin 1
J32
J34
Con6
J18
J19
pin 1
pin 1
J44 J45
J14
J15
J49
J50
J17
CPU 1CPU 0
82441FX
82371SB
82442FX
Primary IDE
J5
J9pin 1
pin 1
J1
USB1
Socket 8 U9
Socket 8 U10
pin 1
USB2
pin 1
J7
J10 pin 1
Only available on
S1662D

8S1662-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!

9S1662-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
1Speaker out
2Ground
3Ground
4+ 5V
Keylock Connector: J31 Pinout Assignments
Pins 1 to 3 for power LED. 1Led Output
2No Connect
3Ground
Pins 4 and 5 for Keylock 4Keylock
5Ground
Turbo Switch: J30 ( Non-Turbo Mode Not Supported )
HDD LED: J43
Pinout Assignments
1Cathode
2Anode
3Cathode
4Anode
Pins 1 and 2 are for primary IDE channel.
Pins 3 and 4 are for secondary IDE channel.

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Reset Connector: J46 Pinout Assignment
1Power Good
2Ground
Turbo LED Connector: J29 Pinout Assignment
1Cathode
2Anode
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
1Signal In
2Gound
3SignalOut
4VCC
Super I/O Type: J34
Type J34
665IR 1-2
669IR 2-3
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.

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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.

12S1662-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 pass-
word 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.

13S1662-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 auto-
matically 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
1 2 3 4
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
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

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

15S1662-AT-001 http://www.tyan.com
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..
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.
wThe CPU is a sensitive electronic component and it can be easily
damaged by static electricity. Do not touch the CPU pins with your
fingers.
wWhen installing the CPU into the socket, match the CPU pins to the
socket pins.
wBefore 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.
wA cooling fan and heat sink assembly is required to protect the
CPU from being damaged.

16S1662-AT-001 http://www.tyan.com
3.12VRM 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.
wVRM socket 0 is for CPU socket 0.
wVRM 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.

17S1662-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.
Good Power Signal
VCC
+12V
-12V
GND
GND
GND
GND
-5V
VCC
VCC
VCC
5 volt
power
connector
pinout
Pin 1
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 connec-
tor.

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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 connec-
tor.
Connecting 5V power supply

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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.

20S1662-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