TYAN TEMPEST II User manual

1S1642-001-01

1. Introduction

1.1 Preface

S1462 is a Dual Intel Pentium based PC/AT mainboard. With 75MHz thru

166MHz CPU, PCI local bus, EISA bus, it can be used with the fastest PC/

AT systems.

1.2 Key Features

* Single or Dual Pentium based PC/AT compatible mainboard with Intel

Neptune chipset

* 4 Master/Slave PCI Bus slots, 5 EISA Bus slots (4 master).

* Supports Single or Dual Pentium Processors (75MHz thru 166MHz).

* Supports true 64 bits CACHE and DRAM access mode.

* Supports WHITE ZIF Socket 5 socket.

* Supports 256/512 KB 2nd level cache memory, either synchronous or

standard SRAM.

* CPU WRITE-BACK cache operation.

* Supports up to 512 MB DRAM memory on board.

* Supports shadow RAM for BIOS & VIDEO BIOS.

* Shadow RAM cachable function to improve performance.

* Licensed AWARD BIOS or AMI BIOS.

* Flash BIOS support

* On-board NCR SCSI (NC810) BIOS firmware

* RTC and 8KB EISA configuration memory

* BABY AT form factor, 6 layers PCB.

2S1462-001-01

C=Control

D=Data

A=Address

1.3. S1462 Block Diagram

Clock Chip

50/66/60 MHz

Clock Driver

PCICLKA

VESA Slot

LBX

PCI SLot

#1 #2 #3 #4

C D A

DRAM

PCICLKB

PCICLKC

PCICLKE

PCEB

82375EB/SB

ESC

82374EB/SB

LBX

82433NX

EISA Slot

8042

BIOS

#1 #2 #3 #4 #5

Cache

SRAM

256/512 KB

synchronous or

standard SRAM

PCM

82434NX

CPU

Pentium

75-166MHz

CPU

Pentium

75-166MHz

3S1642-001-01

1.4 Hardware Specifications

* CPU -Single or Dual 3.3V Pentium 75/90/100 MHz

Processor.

-Single Pentium 120 or 133 MHz Processor

-Two 320 pin SPGA Pentium Overdrive Proces-

sor (Socket 5) White ZIF Sockets on board.

* Coprocessor -Included in Pentium CPU.

* Speed -50/60/66 MHz System Bus and 25/30/33 MHz

PCI Bus speed.

-7.5/8.33 MHz EISA/ISA Bus speed.

-H/W and S/W speed switchable function (Cache

or non Cache).

* DRAM Memory -4 double banks of 72 pins SIMM Module DRAM.

-2MB to 512 MB DRAM size.

-Supports Fast Page DRAM access mode.

* Cache Memory -16 KB cache memory included in Pentium.

-256/512 KB on board 2nd level cache memory.

-Support Pentium BURST read/write mode on

2nd level cache memory access.

-Supports either synchronous or standard

SRAM.

* Shadow RAM -Main BIOS function.

-Video BIOS shadow function programmable.

-Shadow RAM cachable function programmable.

* I/O Bus Slots -4 Master/Slave PCI-Bus.

-5 EISA Bus (4 Masters).

* Dimension -Baby AT size.

1.5. Software Specifications

* BIOS -Licensed AWARD BIOS or AMI BIOS.

-AT CMOS Setup, BIOS/CHIPSET Setup, and

hard disk utility included.

* O.S. -Operates with MS-DOS, Windows, Windows

NT, OS/2, Novell, and SCO Unix.

* Utilities -Licenced AMI EISA configuration utility

-Flash EPROM utility

4S1462-001-01

1.6 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

5S1642-001-01

2. Board Installation.

2.1 Unpacking

The mainboard package should contain the following

* The S1462 Mainboard

* User's Manual

* ECU User's Manual

* EISA CFG. Utility Diskette

The mainboard contains sensitive electric components which can be easily

damaged by static electricity, so the mainboard should be left in its original

packing until it is installed.

Unpacking and installation should be done in 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 main board carton for obvious damages. Shipping and handling

may cause damages to your board. Be sure there are no shipping and

handling damages on 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!

MAKE SURE THAT THE POWER SUPPLY IS CONNECTED

TO THE PROPER 5V CONNECTOR!

6S1462-001-01

2.2 Installation

You are now ready to install your mainboard. The mounting hole pattern on

the mainboard matches the IBM-AT system board. It is assumed that the

chassis is designed for a standard IBM XT/AT mainboard mounting.

Place the chassis of the anti-static mat and remove the cover. Remove the

plastic clips, Nylon stand-off and screws for mounting the system board,

and keep them separately.

7S1642-001-01

3. S1462 On Board Resource Setting and Upgrade Guide

3.1 Quick Reference For Jumpers & Connectors (refer Fig. 3.1)

* J21/22: 5V Power Connector

1Power Good Signal

2,10,11,12 VCC (+5V)

3+12V

4-12V

5,6,7,8 GND

9-5V

* J24/J25: 3.3V Power Connector

1,2,3,10,11,12 GND

4,5,6,7,8,9, 3.3V

( J29 needs to be "OFF", if using J24/J25)

* J20: Reset Connector

"Open" for normal operation

"Close" for hardware reset

* J7: Second Level Cache Size Selection (J6 always "on" 1-2)

"Close" pins 1-2 for 512KB cache size

"Close" pins 2-3 for 256KB cache size

* J13: Power LED and Keylock Connector

1LED anode (+)

2NC

3LED cathode (-)

4Keylock

5GND

* J8: Standard or Synchronized SRAM

1-2 Synchronized SRAM

2-3 Standard

8S1462-001-01

* J19: Speaker Connector

1Data

2NC

3GND

* J16: Turbo Switch Connector

"Open" for high speed

"Close" for low speed (non-cache)

* J17: Turbo LED Connector

1LED cathode (-)

2LED anode (+)

* J9, J10,J2 and J43: System Speed Selection

J9 J10 J2 J43 CPU Speed

off off off off 75MHz

off on off off 90MHz

on on off off 100MHz

off on on off 120MHz

on on on off 133MHz

off on on on 150MHz

on on on on 166MHz

* J41 Single or Dual Processor

1-2 Single Processor

2-3 Dual Processor

In Dual Processor mode

Socket 5 "A" as master

Socket 5 "B" as slave

In Single Processor mode

Use either "A" or "B" Socket 5

*J8 Synchronized or STD SRAM

1-2 Synchronized SRAM

2-3 STD SRAM

9S1642-001-01

EISA Slot 5

EISA Slot 4

EISA Slot 3

EISA Slot 2

EISA Slot 1

PCI Slot 4

PCI Slot 1

Bank 0

Bank 1

Figure 3.1

* All other Jumpers are reserved

PWR CON. 3.3V

RTC

Bank 3

Bank 4

ICChip

82434

ICChip

82433

82374

EB/SB

82375

EB/SB

Synchronized SRAM

Keyboard

CON

Heat

Sink

Socket 5 A Socket 5 B

Clock

Chip

P54C

P54CM

P54C

J41

Pin1

PWR CON. 5V

Pin1

BIOS

AMI/AWARD

J18

PCI Slot 3

PCI Slot2

Single or

Dual CPU

J41

Single

Dual 1

Flash

EPROM

J18

12V

5V 1

256 KB

512 KB

Cache Size

J10

J43

J11

10S1462-001-01

3.2 DRAM Installation

The mainboard can be installed with 1/2/4/8/16/32/64 MB 72 pins/70 ns

DRAM SIMM module. The DRAM memory system consists of 4 banks

(0-3). Each bank requires 2 SIMM modules to achieve 64 bit bus transfer

and proper operation. The total memory size can be from 2MB to 512MB.

Various DRAM configurations are shown on the table following this page.

0 0,1 0-2 0-3

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

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

BNK0 BNK1 BNK2 BNK3 BK0 BNK BNK BNK

SIMM SIMM SIMM SIMM SIZE SIZE SIZE SIZE

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