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Summary of Contents for FOX-III 286

Page 1: ...c l FOX III 286 UH i f21 d51 r n H A H1J HI l H 5111 flC 1VlT i 12 i HiT iH A fIBH fi c T...

Page 2: ...receiver Move the computer away from the receiver Plug the power cord of computer into a different outlet so that computer and receiver are on different branch circuits Ensure that card slot covers a...

Page 3: ...mpose of 4 chapters chapter contains a brief introduction of FOX III motherboard In the chapter 2 specifications and functions of FOX III are discussed It also outlines many advanced features of the C...

Page 4: ...s Don t push your computer flush against the wall leave it some brea thing space Heat can destroy computer chips CLEANING THE GOLDEN FINGER Whenever inserting an add on card to the motherboard make su...

Page 5: ...ure by supporting 80286 processor speeds up to 20 MHz See NOTE on PREFACE For the memory system it is configurable from 512 K to 4 MByte of DRAMs on the system board with true 0 wait state DRAM access...

Page 6: ...gain performs the memory test and then tries to boot from the disk drive If your hard disk has not yet been initialized be sure that you have a bootable DOS diskette in the A drive A 16 CHAPTER 2 GENE...

Page 7: ...and multi tasking systems The 80286 has built in memory protection that supports operating system and task isolation as well as program and data privacy wi thin tasks The 80286 includes memory manage...

Page 8: ...messages on the display attached to the system Thus you can enter the setup program The jumper JP2 must be set according to this setting Otherwise the BIOS will report error after self test A 12 GENE...

Page 9: ...the drives cannot work properly If one of them is not installed select Not Installed for that drive A IO GENERAL FEATURES OP codes and operands through these I O ports The microprocessor also receives...

Page 10: ...SETUP menu A 8 GENERAL FEATURES memory is installed it also support relocation of memory from address AOOOO to address FFFFF that are not used in shadowing to above 1M The following table shows the va...

Page 11: ...f you want to rUIl SETUP or DIAGS Hit DEL key to get into the Setup Mode Note that DEL key will get you into the setup mode only when the above message is displayed on the screen Upon your pressing of...

Page 12: ...een similar to below System Configuration C Copyright 1985 1990 American Megatrends Inc Main Processor 80286 Base Memory Size 640 KB Numeric Processor None Ext Memory Size OKB Floppy Drive A 1 2 MB 5V...

Page 13: ...lost due to loss of battery power you will need to reenter the configuration A 2 INSTALLING COMPONENTS SYSTEM MEMORY CONFIGURATION FOX III offers a flexible memory configuration There are 2 memory ba...

Page 14: ...STALLING COMPONENTS The different configurations of memory is illustrated on the following table It shows the memory configuration available for each possible memory map Memory Configuration I Bank 0...

Page 15: ...Vde Power B6 DRQ2 I B7 12 Vde Power B8 OWS I B9 12 Vde Power BI0 GND Ground Bll SMEMW 0 B12 SMEMR 0 B13 lOW I O B14 lOR I O B15 DACK3 I B16 DRQ3 0 B17 DACKI I B18 DRQl 0 B19 Refresh I O B20 CLK 0 B21...

Page 16: ...ING COMPONENTS SYSTEM BOARD JUMPER SETTING There are several jumpers 1n the motherboard that allow the user to select the desired system configuration The following tables show the function and defaul...

Page 17: ...F Selection of data access either 8 or 16 bit 24 bit memory ad dresses 16MB Interrupts DMA channels Memory refresh signal 4 12 INSTALLING COMPONENTS P 2 Speaker Connector I Pin I Assignment I Data out...

Page 18: ...nsion memory byte 18 High expansion memory byte 19 2D Reserved 2E 2F 2 byte CMOS checksum 30 Low expansion memory byte 31 High expansion memory byte 32 Date century byte 33 Information flags set durin...

Page 19: ...bout FOX III and is intended for advanced users interested in the basic design and operation of FOX III MEMORY MAPPING Address I Range II Function I 000000 OOOK SI2K System Board Memory 7FFFFF SI2K 08...

Page 20: ...oftware Redirected to INT OAH IRQ2 Reserved Reserved Reserved Coprocessor Fixed Disk Controller Reserved Serial Port 2 Serial Port I Parallel Port 2 Diskette Controller Parallel Port 1 TECHNICAL INFOR...

Page 21: ...I 1 190 Mhz OSC Clk out I Request Refresh Cycle 4 4 TECHNICALINFORMATION Channel 2 Tone Generation of Speaker Gate 2 Controlled by bit 0 of port hex 61 PPI bit Clk in 2 1 190 Mhz OSC Clk out 2 Used t...

Page 22: ...nterrupt mask 080 09F DMA Page Register 74LS6 2 OAO OBF Interrupt Controller 2 8259 OCO ODF DMA Controller 2 8237 OFO Clear Math Coprocessor Busy OFI Reset Ma th Coprocessor OF8 0FF Math Coprocessor P...

Page 23: ...when power is off Upon you turn the system power on CMOS will load the recorded configuration into the system so that the system can function in the right track with the equipped devices However if y...

Page 24: ...Vdc 5 5 Vdc 6 5 Vdc 3 14 TECHNICALINFORMATION REAL TIME CLOCK INFORMATION The following table describes real time clock bytes and specifies their addresses IByte I Function Address 0 Seconds 00 1 Seco...

Page 25: ...ock connector P4 Turbo switch con nector P5 Turbo LED connector P6 P7 Power supply connector P8 External battery connector KBI Keyboard connector Pin assignments of the connectors are illustrated as f...

Page 26: ...ode or normal mode In turbo mode the turbo LED will turned on In normal mode the turbo LED is off It should be note that turbo switch setting will override the keyboard switching mode but not vice ver...

Page 27: ...it If the module edge is not completely inserted into the socket it cannot be pivoted to be in vertical position and should be dragged out and inserted again Do not force the module into the SIMM sock...

Page 28: ...use a Basic Input Output System This is software that has been permanently recorded in a ROM Read Only Memory chip and functions as the basic point of communication between the system board and the r...

Page 29: ...an bypass the memory test by pressing the ESC key This option would be useful when the memory on the system is qui te large You may hit the ESC key when the message following message appears on the sc...

Page 30: ...gently pressing its top edge not the pins Repeat for the other row of pins When you are sure the pins are aligned correctly press firmly and evenly on the 80287 to seat the pins in the socket Careful...

Page 31: ...light the selected item Highlight RUN CMOS SETUP for the SETUP program and press the Return key to enter this option Depending on the BIOS version a SETUP men u similar to below will appears CMOS SETU...

Page 32: ...o further enhance the system performance shadow RAM is supported Shadow RAM is a technology that loads system BIOS and or video BIOS from the low speed EPROM ROM directly into fast DRAM during boot up...

Page 33: ...IEEE floating point standard The Ma thema tics Coprocessor 80287 is treated as an I O device through I O port address hex OF8 OFA and OFC The microprocessor sends 2 6 SYSTEM BIOS The BIOS is a ble to...

Page 34: ...at load a segment register will refer to the memory based tables without additional program support The memory based ta bles contain 8 byte values called descriptors 2 4 SYSTEM BIOS OPTION 5 KEYBOARD...

Page 35: ...aila ble If the user is using slow DRAM disable this option this will provide better timing margins for the DRAM If however high speed DRAM is available to the user do enable this option this will all...

Page 36: ...for general business applications involving spreadsheet word processing database presentation graphics telecommunications and network worksta tions 1 2 SYSTEM BIOS RUNNING AMI BIOS DI AGNOSTICS Follow...

Page 37: ...ION Some componen ts of the FOX III or computer components are static sensitive devices and can be damaged by static discharges To prevent such damage the device may be wrapped in a conductive anti st...

Page 38: ...r off your computer and vacuum the interior to remove accumulated dust Use a brush attachment on the vacuum and carefully go over all exposed parts To prevent dust from accumulating on the mother boar...

Page 39: ...egularly Tllrn off the power whenel er 1 011 install or remove any connector memory modllle and add on card Before tllrning on the power make sure that all the connectors memory modules and add on car...

Page 40: ...this manual is for information only and is subject to change without notice REVISION 1 0 IBM IBM PC XT AT PC DOS MS DOS OS 2 UNIX XENIX INTEL AMI ARE THE TRADEMARKS OR REGISTERED TRADEMARKS OF THEIR R...

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