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TOMCAT I II
User Manual
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Tyan TOMCAT I II User Manual

Table Of Contents
1. Introduction.......................................................................3
1.1 Overview................................................................3
1.2 Hardware Specifications..........................................
1.3 Software Specifications.......................................... 5
1.4 Environment........................................................... 5
2. Board Installation..............................................................6
2.1 Unpacking.............................................................. 6
2.2 Installation.............................................................. 7
3. S1562 On Board Resource Settings................................. 8
3.1 S1562 Board Layout & Jumper Locations................ 8
3.2 Quick Reference for Jumpers.................................. 9
3.3 CMOS RTC............................................................12
3.4 Speaker Connector..................................................12
3.5 Turbo Switch.......................................................... 12
3.6 Turbo LED Connect................................................12
3.7 Reset Connector..................................................... 13
3.8 Flash EPROM Jumpers.......................................... 13
3.9 CMOS & Password Reset...................................... 13
3.10 DRAM Installation................................................ 14
3.11 CPU Installation.................................................... 17
3.12 Upgrading Cache Memory..................................... 18
3.13 Understanding Different Clock Speeds................... 19
3.14 Peripheral Device Installation.................................20
3.15 Connecting The Power Supply...............................21
4.1 Entering Setup....................................................... 23
4.2 Control Keys......................................................... 24
4.3 Getting Help........................................................... 25
4.4 The Main Menu...................................................... 25
4.5 Standard CMOS Setup Menu...................................27
4.6 BIOS Features Setup.............................................. 30
4.7 Chipset Features Setup............................................33
4.7.1 Power Management Setup........................38
4.8 PCI Slot Configuration.............................................40
4.9 Load Setup Defaults................................................42
4.10 Password Setting...................................................42
4.11 IDE HDD Auto Detection..................................... 44
4.12 Save & Exit Setup.................................................44
4.13 Keyboard Setting Functions....................................45
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5.1 Standard Setup Options........................................... 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
6.1 The Flash Memory Writer Utility Screen...................59
7.1 I/O Bus Connector Pin Out......................................60
7.1.1 ISA Slot Pin Out...................................... 60
7.1.2 PCI-Bus Slot Pin Out............................... 61
7.2 Timer & DMA Channel Map...................................62
7.3 Interrupt Map......................................................... 62
7.4 RTC & CMOS RAM Map...................................... 63
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.
Trademarks
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 are trademarks of Intel Corporation. Cyrix is a trademark of Cyrix Corp. Copyright c 1996 TYAN Computer Corp. Tomcat I, Tomcat II, 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, multi­user 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" form­factor. 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 inter­face. 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:
wS1562 Mainboard 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 anti­static 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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3. On Board Resource Setting
Figure 3.1 S1562 Board Layout
pin 1
Con7
KB CTR
Con11
pin 1
Con10
PS/2 Mouse Header
PWR CON. 5V
Keyboard CON
ISA Slot 5
J47 J48
pin 1
BIOS
AMI/AWARD
RTC
J45
ISA Slot 4
ISA Slot 3
82039AA
CPU 1
Socket 7
J28 J29 J30
J31 J32 J33 J34 J35 J36
PCI Slot 4
ISA Slot 1
ISA Slot 2
82371SB
Only on S1562D
pin 1
J15
J14
PCI Slot 3
PCI Slot 2
pin 1
J13
J7
J8 J9
J10
J16
82439HX
1
Secondary IDE
PCI Slot 1
Bank 0
pin 1
1
1
Floppy Con.
Primary IDE
Bank 0
Com2
Com1
1
J2
Parallel Port
Bank 1
1
1
J1
Bank 1
J46
J49
pin 1
J50
CPU 0
Socket 7
J44
J43
J42
J41
J40
J39
J38
J26
COAST Module
CON9
J37
J25
J22
J24
J27 J23
J17
pin 1
Tag RAM
J11 J12
J18 J19
J20
J21
Manufacturer Defaults( Do not change) J7 1-2 J40 On J45 Off
J49 2-3 J41 On
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Bank 2
Bank 2
Bank 3
Bank 3
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.
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.
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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 1 Speaker out 2 Ground 3 Ground 4 + 5V
Keylock Connector: J22
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: J26 ( Non-Turbo Mode Not Supported )
HDD LED: J24
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.
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Reset Connector: J27
Pinout Assignment 1 Power Good 2 Ground
Turbo LED Connector: J25
Pinout Assignment 1 Cathode 2 Anode
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 1 Signal In 2 Gnd 3 Signal Out 4 VCC
PS/2 Pinout:
VCC Data GND
ClK
Keyboard
Connector
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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
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.
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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 pass­word 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) 2MB 4MB 6MB 8MB 1MB*2 (2MB*2) (2MB*2 (2MB*2) 2MB 6MB 10MB 14MB 1MB*2 (4MB*2) (4MB*2) 4MB*2) 2MB 10MB 18MB 26MB 1MB*2 (8MB*2) (8MB*2) (8MB*2) 2MB 18MB 34MB 50MB 1MB*2 (16MB*2) (16MB*2) (16MB*2) 2MB 34MB 66MB 98MB 1MB*2 (32MB*2) (32MB*2) (32MB*2) 2MB 66MB 130MB 194MB 1MB*2 (64MB*2) (64MB*2) (64MB*2) 2MB 130MB 258MB 386MB
2MB*2 (1MB*2) (1MB*2) 1MB*2) 4MB 6MB 8MB 10MB 2MB*2 (2MB*2) (2MB*2) (2MB*2) 4MB 8MB 12MB 16MB 2MB*2 (4MB*2) (4MB*2) (4MB*2) 4MB 12MB 20MB 28MB 2MB*2 (8MB*2) (8MB*2) (8MB*2) 4MB 20MB 36MB 52MB 2MB*2 (16MB*B) (16MB*2) (16MB*2) 4MB 36MB 68MB 100MB 2MB*2 (32MB*2) (32MB*2) (32MB*2) 4MB 68MB 132MB 196MB 2MB*2 (64MB*2) (64MB*2) (64MB*2) 4MB 132MB 260MB 388MB
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Total Memory In Bank
Bank0 Bank1 Bank2 Bank3 0 0&1 0,1&2 Total
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
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
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
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
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Total Memory In Bank
Bank0 Bank1 Bank2 Bank3 0 0&1 0,1&2 Total
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
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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.
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..
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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 fre­quencies. 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.
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