TYAN TOMCAT I II User manual

1S1562-001-01
TableOfContents
1.Introduction.......................................................................3
1.1 Overview................................................................3
1.2Hardware Specifications..........................................
1.3SoftwareSpecifications.......................................... 5
1.4 Environment........................................................... 5
2.Board Installation.............................................................. 6
2.1 Unpacking.............................................................. 6
2.2 Installation.............................................................. 7
3.S1562OnBoardResourceSettings................................. 8
3.1S1562BoardLayout&Jumper Locations................ 8
3.2 Quick Referencefor Jumpers.................................. 9
3.3 CMOS RTC............................................................12
3.4 Speaker Connector..................................................12
3.5 Turbo Switch.......................................................... 12
3.6Turbo LED Connect................................................12
3.7 Reset Connector..................................................... 13
3.8Flash EPROM Jumpers.......................................... 13
3.9 CMOS & Password Reset...................................... 13
3.10 DRAMInstallation................................................ 14
3.11 CPU Installation.................................................... 17
3.12UpgradingCacheMemory..................................... 18
3.13Understanding Different Clock Speeds................... 19
3.14Peripheral Device Installation.................................20
3.15ConnectingThe Power Supply...............................21
4. BIOS Configuration...........................................................23
4.1 Entering Setup....................................................... 23
4.2 Control Keys......................................................... 24
4.3 Getting Help........................................................... 25
4.4 The Main Menu...................................................... 25
4.5Standard CMOS Setup Menu...................................27
4.6 BIOS Features Setup.............................................. 30
4.7ChipsetFeaturesSetup............................................33
4.7.1PowerManagementSetup........................38
4.8PCI Slot Configuration.............................................40
4.9 Load Setup Defaults................................................42
4.10 Password Setting...................................................42
4.11IDE HDD Auto Detection..................................... 44
4.12 Save & Exit Setup.................................................44
4.13Keyboard Setting Functions....................................45

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5.AMI WinBIOS....................................................................46
5.1StandardSetupOptions........................................... 46
5.2 Advanced Setup..................................................... 47
5.3 Advanced Chipset.................................................. 50
5.4 Power Management................................................54
5.5 Peripheral............................................................... 55
5.6 Utility..................................................................... 56
5.7 Security.................................................................. 56
5.8 Defaults................................................................. 56
6.FlashWriterUtility............................................................57
6.1TheFlashMemoryWriterUtilityScreen...................59
7. ATTechnicalInformation..................................................60
7.1I/O Bus Connector PinOut......................................60
7.1.1 ISA Slot Pin Out...................................... 60
7.1.2PCI-Bus Slot Pin Out............................... 61
7.2Timer & DMA ChannelMap...................................62
7.3 Interrupt Map......................................................... 62
7.4 RTC & CMOS RAM Map...................................... 63
AppendixA.PostCodes.......................................................64
Informationpresentedinthispublicationhasbeencarefullycheckedfor
reliability;however,noresponsibilityisassumedforinaccuracies.The
informationcontainedinthisdocumentissubjecttochangewithout
notice.
Trademarks
AwardBIOS/Flashare trademarks of AwardSoftwareInternationalInc.
AMIBIOS isatrademarks ofAmericanMegatrendsInc.
IBM,PC,AT,PS/2aretrademarksof IBMCorporation
INTEL,PentiumaretrademarksofIntelCorporation.
Cyrixisatrademarkof Cyrix Corp.
Copyrightc1996TYANComputerCorp.
TomcatI,TomcatII,S1562S,S1562D.

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1. Introduction
1.1 Overview
The S1562 is a quality, high performance dual processor mainboard based
on the powerful Intel Pentium microprocessors. This mainboard is
designed around the latest and fastest Intel 430HX(II) chipset and can
support CPU speeds of 75MHz through 200MHz and beyond. The
S1562S is single processor mainboard and the S1562D is a dual
processor mainboard.
The S1562S supports Pentium and Cyrix processors, EDO memory, ECC
memory and memory parity checking.The S1562'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. The S1562D supports dual Pentium
processors(dual Cyrix CPU is not supported).
This integrated system board achieves the highest reliability and yet is
small enough for all of its features to be supported in 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, and support for
pipeline-burst SRAM.
Flexibility and expandibility have been designed into the S1562. With I/O
and drive controller support built on-board, the four PCI and five ISA
(One ISA and one PCI as a shared slot) slots are free for any add-on
expansion cards. With eight SIMM sockets, the S1562 can provide a very
flexible memory configuration of 8MB to 512MB of RAM. With the
S1562D's support for dual Pentium processors, you can start a system
with just one CPU, and later add another, when more processing power is
required.

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1.2 Hardware Specifications/Features
wCPU Intel Pentium 75 MHz thru 200 MHz (Socket 7)
(Single or Dual CPU configuration)
Cyrix 6x86 P120+, P150+ and P166+
wCoprocessor On-chip floating point unit
wSpeed 50/60/66 MHz system bus
25/30/33 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 EDO(Exended Data Out) DRAMs
Supports ECC(Error Correcting Code)w/ parity
Supports Fast Page Mode DRAMs
Supports 8MB to 512MB of DRAMs
wL2 Cache 256/512KB on board 2nd level cache memory
Supports synchronous pipeline-burst cache
wEIDE Controller Primary and secondary PCI EIDE channels on
board for support of up to four EIDE Mode 0
through Mode 4 drives.
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.
wMouse On-board PS/2 mouse connector.
wI/O Bus Slots 4 Master/Slave PCI-Bus
5 ISA Bus (One ISA and one PCI shared slot)

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1.3 Software Specifications
wBIOS Licensed 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

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2. Board Installation
2.1 Unpacking
The mainboard package should contain the following:
wS1562Mainboard
wOne IDE 40 pin cable
wTwo serial cables
wwOne parallel cable
wOne 34 pin floppy cable
wUser's Manual
wOptional Pipeline cache module
wOptional PS/2 mouse cable
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.
Unpacking and installation should be done on a grounded anti-static mat.
The operator should be wearing an anti-static wristband, grounded at the
same point as the anti-static mat.
Inspect the mainboard carton for obvious damage. Shipping and handling
may cause damage to your board. Be sure there is no shipping and handling
damage to the board before proceeding.
After opening the mainboard carton, extract the system board and place it
only on a grounded anti-static surface, component side up. Again inspect
the board for damages. 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 APPLY POWER TO THE BOARD IF IT HAS BEEN
DAMAGED!

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2.2 Installation
You are now ready to install your mainboard. The mounting hole pattern of
the S1562 matches the IBM-AT system board spec. It is assumed that the
chassis is designed for a standard IBM XT/AT mainboard.

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PCI Slot 1
Bank 0 Bank 0 Bank 1 Bank 1
PCI Slot 2
PCI Slot 4
3. On Board Resource Setting
KB CTR PWR CON. 5V
ISA Slot 1 ISA Slot 2 ISA Slot 3
ISA Slot 4
ISA Slot 5
Bank 3 Floppy Con.
Keyboard
CON
BIOS AMI/AWARD
J48
J47
J28
Parallel Port
J1
PS/2
Mouse
Header
1
1
1
1
11
COAST Module
82039AA
Socket 7
CPU 1
82371SB
Socket 7
CPU 0
RTC
Tag RAM
pin 1
pin 1
J2
Con7
Con10 Con11
J14
PCI Slot 3
J15
J45
J13 J7
J8
J9
J10
J16
J11
J18
J44
pin 1
pin 1
J29
J30
J31
J32
J33
J34
J35
J36
J12
J43J19
J20
J21
CON9
J25
J24
J27 J23
J22
J42
J41 J37
J38
J26
J40
J39
pin 1
pin 1
J50
J46
J49
pin 1
Secondary IDE
Primary IDE
Bank 2 Bank 2
Bank 3
Figure3.1S1562 Board Layout
82439HX
Manufacturer Defaults( Do not change) J7 1-2 J40 On J45 Off
J49 2-3 J41 On
Com1
Com2
pin 1
J17
Only on S1562D

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APIC For DP: J50 (Dual CPU Jumper S1562D only)
J50
Dual CPU 2-3
Single CPU 1-2
*Note: When using two Pentiums, Intel recommends that the chips
have the same s-spec number. These numbers are stamped on
the top and bottom or the Pentium chips. Check with your
CPU vendor for more info about s-spec numbers.
3.2 Jumper Settings
CPU Speed: J13 J19 J20 CPU Speed
1-2, 3-4 Off Off 75 MHz
3-4 Off Off 90 MHz
1-2 Off Off 100 MHz
3-4 On Off 120 MHz Cyrix P150+
1-2 On Off 133 MHz Cyrix P166+
3-4 On On 150 MHz
1-2 On On 166 MHz
1-2 Off On 200 MHz
1-2, 3-4 On Off 100MHz Cyrix P120+
Memory Voltage:5 volts is the default.Some EDO memory uses 3.3volts.
Damage to system can result if these are set incorrectly!
Volts J1 J2 J11 J12 J8 J9 J10
Default 5V On On On On Off Off Off
3.3V Off Off Off Off On On On
CMOS Reset: J46
Off: Normal operation(Default)
On: Clears password and resets CMOS
wWith power off, put jumper on J46 for about 10 seconds.
wRemove jumper and power system on and the CMOS will be reset.

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I/O Selection: J14 & J15
J14 J15
For COM 1 and 2 1-2 1-2 Default
For InfraRed 2-3 2-3
Speaker Connector: J23 Pinout Assignments
1Speaker out
2Ground
3Ground
4+ 5V
Keylock Connector: J22 Pinout Assignments
Pins 1 to 3 for power LED. 1Led Output
2No Connect
3Ground
Pins 4 and 5 for Keylock 4Keylock
5Ground
Turbo Switch: J26 ( Non-Turbo Mode Not Supported )
HDD LED: J24
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: J27 Pinout Assignment
1Power Good
2Ground
Turbo LED Connector: J25 Pinout Assignment
1Cathode
2Anode
Flash EEPROM: J47 & J48
These jumpers should be left at the factory default.
J47 1-2
J48 1-2
InfraRed Interface: Con7 and Con9
Pinout Assignment
1Signal In
2Gnd
3SignalOut
4VCC
PS/2 Pinout:
VCC Data GND
Keyboard
Connector
ClK

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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
S1562 provides a 4-Pin header (J23) 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 430HX chipset doesn't support a de-turbo mode, but the S1562
has a connector (J26) 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
J25 in the correct direction.
Voltage Regulator
The Default setting will work with most Pentiums CPU's.
The 6x86 will have a marking on it that will identify the
voltage that it requires.
"016" marking on Cyrix chip uses a 3.3V setting.
"028" marking on Cyrix chip uses a 3.48V setting.
Default
3.3V 3.48V 3.6V
J37 On Off Off
J38 Off Off On
J39 Off On Off

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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
J27.
3.8 Flash EEPROM-Jumper J47and J48
The S1562 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.
J47 and J48 determines which type of EPROM is used. These jumpers
have been set to match the on board BIOS chip. The factory default for the
S1562 is on pins 1-2.
Refer to chapter 6 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 J46.
c. Wait for 5 seconds then remove the jumper from J46.
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.

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3.10 DRAM Installation
The S1562 uses a 64-bit data path from memory to CPU and can
accommodate up to 512 MB of RAM. The mainboard supports
standard, EDO (Extended Data Out) and ECC(Error Correcting Code)
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 and 16MBx32 SIMMS.
wThe table below shows some of the available memory configurations.
Total Memory In Bank
Bank0 Bank1 Bank2 Bank3 0 0&1 0,1&2 Total
1MB*2 (1MB*2) (1MB*2) (1MB*2)2MB4MB6MB8MB
1MB*2 (2MB*2) (2MB*2 (2MB*2)2MB6MB10MB14MB
1MB*2 (4MB*2) (4MB*2)4MB*2)2MB10MB18MB26MB
1MB*2 (8MB*2) (8MB*2) (8MB*2)2MB18MB34MB50MB
1MB*2 (16MB*2) (16MB*2) (16MB*2)2MB34MB66MB98MB
1MB*2 (32MB*2) (32MB*2) (32MB*2)2MB66MB130MB194MB
1MB*2 (64MB*2) (64MB*2) (64MB*2)2MB130MB258MB386MB
2MB*2 (1MB*2) (1MB*2)1MB*2)4MB6MB8MB10MB
2MB*2 (2MB*2) (2MB*2) (2MB*2)4MB8MB12MB16MB
2MB*2 (4MB*2) (4MB*2) (4MB*2)4MB12MB20MB28MB
2MB*2 (8MB*2) (8MB*2) (8MB*2)4MB20MB36MB52MB
2MB*2 (16MB*B) (16MB*2) (16MB*2)4MB36MB68MB100MB
2MB*2 (32MB*2) (32MB*2) (32MB*2)4MB68MB132MB196MB
2MB*2 (64MB*2) (64MB*2) (64MB*2)4MB132MB260MB388MB

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4MB*2 (1MB*2) (1MB*2) (1MB*2) 8MB 10MB 12MB 14MB
4MB*2 (2MB*2) (2MB*2) (2MB*2) 8MB 12MB 16MB 20MB
4MB*2 (4MB*2) (4MB*2) (4MB*2) 8MB 16MB 24MB 32MB
4MB*2 (8MB*2) (8MB*2) (8MB*2) 8MB 24MB 40MB 56MB
4MB*2 (16MB*2) (16MB*2) (16MB*2) 8MB 40MB 72MB 104MB
4MB*2 (32MB*2) (32MB*2) (32MB*2) 8MB 72MB 136MB 200MB
4MB*2 (64MB*2) (64MB*2) (64MB*2) 8MB 136MB 264MB 392MB
32MB*2 (1MB*2) (1MB*2) (1MB*2) 64MB 66MB 68MB 70MB
32MB*2 (2MB*2) (2MB*2) (2MB*2) 64MB 68MB 72MB 76MB
32MB*2 (4MB*2) (4MB*2) (4MB*2) 64MB 72MB 80MB 88MB
32MB*2 (8MB*2) (8MB*2) (8MB*2) 64MB 80MB 96MB 112MB
32MB*2 (16MB*2) (16MB*2) (16MB*2) 64MB 96MB 128MB 160MB
32MB*2 (32MB*2) (32MB*2) (32MB*2) 64MB 128MB 192MB 256MB
32MB*2 (64MB*2) (64MB*2) (64MB*2) 64MB 192MB 320MB 448MB
16MB*2 (1MB*2) (1MB*2) (1MB*2) 32MB 34MB 36MB 38MB
16MB*2 (2MB*2) (2MB*2) (2MB*2) 32MB 36MB 40MB 44MB
16MB*2 (4MB*2) (4MB*2) (4MB*2) 32MB 40MB 48MB 56MB
16MB*2 (8MB*2) (8MB*2) (8MB*2) 32MB 48MB 64MB 80MB
16MB*2 (16MB*2) (16MB*2) (16MB*2) 32MB 64MB 96MB 128MB
16MB*2 (32MB*2) (32MB*2) (32MB*2) 32MB 96MB 160MB 224MB
16MB*2 (64MB*2) (64MB*2) (64MB*2) 32MB 160MB 288MB 416MB
8MB*2 (1MB*2) (1MB*2) (1MB*2) 16MB 18MB 20MB 22MB
8MB*2 (2MB*2) (2MB*2) (2MB*2) 16MB 20MB 24MB 28MB
8MB*2 (4MB*2) (4MB*2) (4MB*2) 16MB 24MB 32MB 40MB
8MB*2 (8MB*2) (8MB*2) (8MB*2) 16MB 32MB 48MB 64MB
8MB*2 (16MB*2) (16MB*2) (16MB*2) 16MB 48MB 80MB 112MB
8MB*2 (32MB*2) (32MB*2) (32MB*2) 16MB 80MB 144MB 208MB
8MB*2 (64MB*2) (64MB*2) (64MB*2) 16MB 144MB 272MB 400MB
Total Memory In Bank
Bank0 Bank1 Bank2 Bank3 0 0&1 0,1&2 Total

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64MB*2 (1MB*2) (1MB*2) (1MB*2) 128MB 130MB 132MB 134MB
64MB*2 (2MB*2) (2MB*2) (2MB*2) 128MB 132MB 136MB 140MB
64MB*2 (4MB*2) (4MB*2) (4MB*2) 128MB 136MB 144MB 152MB
64MB*2 (8MB*2) (8MB*2) (8MB*2) 128MB 144MB 160MB 176MB
64MB*2 (16MB*2) (16MB*2) (16MB*2) 128MB 160MB 192MB 224MB
64MB*2 (32MB*2) (32MB*2) (32MB*2) 128MB 192MB 256MB 320MB
64MB*2 (64MB*2) (64MB*2) (64MB*2) 128MB 256MB 384MB 512MB
Total Memory In Bank
Bank0 Bank1 Bank2 Bank3 0 0&1 0,1&2 Total

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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 Pentiums (75 thru 200 MHz) and Cyrix CPUs can be
used on the S1562. 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.

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3.12 Upgrading Cache Memory
The S1562 supports synchronous pipeline burst SRAM. The synchronous
pipeline burst cache uses a "COAST Module" that is plugged into the
"COAST " socket connector which is located between the CPU and the
SIMM sockets.
wThe BIOS will auto detect the cache size so a you don't need to change
any jumpers.
wThe pipline burst cache COAST module comes in either 256KB or
512KB sizes and has a built in Tag RAM chip.
wThe "COAST Module" will only fit in the "Coast Socket" one way, and
should install easily.
If you have a 512kb or 256kb cache module that has one 32kb X 8kb
tag chip then the cacheable range is the first 64Mb of memory. If your
module has two 32kb X 8kb tag chips then the cacheable range is
512Mb of RAM.
If you have only one tag RAM chip on your cache module but would
like to be able to cache the whole 512Mb memory range, then do
the following.
1. Add a 32k X 8k 15ns SRAM chip to U9.
2. Close jumper J17.(The default is open)
3. Jumper J18 to pins 1-2.(The default is 2-3)

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3.13 Understanding The Different Clock Speeds
The following chart shows the different CPU, mainboard and PCI fre-
quencies. As you may have noticed, all the Intel Pentium CPUs use an
internal clock multiplier(x3, x2.5, x2 or x1.5 Motherboard speed). All
Cyrix 6x86 can only use a x2 clock mulitipplier.
Pentium Mainboard PCI Bus
Internal Clock Clock Clock
75 MHz 50 MHz 25 MHz
90 MHz 60 MHz 30 MHz
100 MHz 66.67 MHz 33 MHz
120 MHz 60 MHz 30 MHz
133 MHz 66.67MHz 33 MHz
150 MHz 60 MHz 30 MHz
166 MHz 66.67 MHz 33 MHz
200 MHz 66.67 MHz 33 MHz
In the table above, the 50, 60 and 66.67 MHz figures are oscillator speeds
that establish the external clock speed. The PCI Bus clock speed is fixed at
one half of the mainboard clock speed. The 150MHz Pentium when set for
2.5x mode will achieve a 30MHz PCI bus speed but if it is set for 3x mode
you will get a slower 25MHz PCI bus speed.
Since all of the Cyrix 6x86 CPU's use a x2 mulitplier, the 100MHz P120+
must run on a 50MHz host bus. The PCI speed will then be at 25MHz.

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3.14 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
four PCI-Bus slots can support either a Master or a Slave device.
After installing the peripheral controller, the user should check everything
again, and prepare to power-on the system.