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Appendix A Boot Block BIOS

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Appendix A

Boot Block BIOS Utility

Overview

The system BIOS for the American Megatrends Enterprise-III EISA VLB motherboard resides on an Intel
28F001BX-T Flash EPROM. Flash EPROM (Erasable Programmable Read-Only Memory) is a device that can store
information that can be easily updated without being removed from the system. The principal advantage of Flash
EPROM is that the information contained in it can be easily enhanced or updated via code on a floppy disk.

The Boot Block BIOS utility updates the Flash EPROM. If the system AMIBIOS for the Enterprise-III motherboard
needs to be updated, American Megatrends will provide a BIOS update file and the Boot Block BIOS Utility.

Why Use Flash EPROMs?

To effect a BIOS change in a system with a traditional BIOS EPROM, you must remove the BIOS ROM EPROMs
and insert new EPROM chips. Then you must reconfigure the system via AMIBIOS Setup.

The Boot Block BIOS code can be used to reprogram part of the system BIOS stored on Flash EPROM.

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Summary of Contents for Enterprise-III

Page 1: ...American Megatrends Inc Series 68 Enterprise III 80486 EISA Motherboard User s Guide MAN 680 4 16 93 ...

Page 2: ... any kind whatsoever whether direct indirect incidental or consequential arising from the design or use of this product or the support materials provided with the product Trademarks American Megatrends acknowledges the following trademarks Intel and i486 are registered trademarks of Intel Corporation MS DOS Xenix and Microsoft are registered trademarks of Microsoft Corporation IBM AT VGA OS 2 and ...

Page 3: ...OS Setup 49 Section 1 Running AMIBIOS Setup 51 AMIBIOS Setup Keys 52 Auto Configuration With BIOS Defaults 53 Auto Configuration With Power On Defaults 53 Write to CMOS and Exit 54 Do Not Write to CMOS RAM and Exit 54 Section 2 STANDARD CMOS SETUP 55 STANDARD CMOS SETUP Options 55 Date And Day Configuration 55 Hard Disk Drive Types 57 Floppy Drive A and Floppy Drive B 58 Primary Display 58 Keyboar...

Page 4: ...en to Use AMIBIOS Hard Disk Utilities 72 Hard Disk Format Utility 73 Auto Interleave Utility 75 Hard Disk Utility Error Messages 77 Appendix A Boot Block BIOS Utility 79 Appendix B Temperature and Power Considerations 85 Appendix C Heat Dissipation 87 Appendix D EISA Configuration Worksheets 89 Index 107 ...

Page 5: ... purchases a computer with the Enterprise III motherboard It is assumed that you the computer manufacturer will use this manual as a sourcebook of information and that parts of this manual will be included in the computer owner s manual Technical Support If an Enterprise III motherboard fails to operate as described or you are in doubt about a configuration option please call technical support at ...

Page 6: ...he end user and preserves complete VL Bus compatibility Advantages of Buffered VL Bus Because VL Bus Adapter Cards sit directly on the CPU bus the additional loading on the CPU signals can cause unreliable CPU operation At 33 MHz most CPU signals have Setup Hold times in the order of 10 9 seconds It is easy to see how timing can be thrown off by the additional load from devices on the VL Bus The A...

Page 7: ...designed to Intel 80486 CPU local bus standards with additional hardware functions that accommodate VL Bus master devices and facilitate the system I O bus interface The timing specifications allow VL Bus devices to operate at the full 32 bit 80486 CPU bandwidth Both VL Bus slots on the Enterprise III motherboard have bus mastering capability EISA and Local Bus Expansion The American Megatrends En...

Page 8: ...lots are EISA non bus mastering slots but have full VL Bus bus mastering capabilities EISA or ISA adapter card will have no VL Bus functionality when installed in a VL Bus expansion slot The current VL Bus expansion socket specification includes a 16 bit MCA Micro Channel Architecture expansion socket inline with a standard 32 bit EISA expansion socket connector A future VL bus specification will ...

Page 9: ...4 VL Bus Adapter Cards The VL Bus Adapter Cards have a different set of connectors on the bottom of the card as shown below These types of adapter cards will fit in the VL Bus expansion slots only ...

Page 10: ...6 Enterprise III EISA Local Bus motherboard is approximately 12 by 13 similar in size to a standard AT motherboard The mounting hole locations permit the motherboard to be used with any AT chassis The height of the components is no more than 1 inches but allow 2 inches of clearance for the power supply connectors as shown below ...

Page 11: ...50 MHz internally or 33 MHz 66 MHz internally CPU Socket The Enterprise III has a 168 pin PGA socket for an Intel 80486DX 80486SX or 80486DX2 CPU Overdrive Support The Enterprise III has a 240 pin LIF Upgrade Socket for an 80487SX if an 80486SX is in the CPU Socket or a future Intel processor such as the Intel P23T or P24T Heat Sink for 50 and 66 MHz CPUs The Enterprise III EISA Local Bus motherbo...

Page 12: ...ks of 16 MB x 9 SIMMs 256 KB x 9 1 MB x 9 and 4 MB x 9 SIMMs can also be used Each SIMM bank consists of four SIMM slots a total of 16 SIMM sockets The 70 ns SIMMs must support fast page mode Cache Memory The 256 KB secondary external cache memory uses a write through or write back caching algorithm Up to 64 MB of system memory is cached There are zero wait states for cache memory read and write f...

Page 13: ...Adaptor ROM BIOS in 32 KB increments in ADVANCED CMOS SETUP in AMIBIOS Setup System BIOS The Enterprise III EISA motherboard uses a customized AMIBIOS system BIOS with a built in Setup configuration utility and hard disk drive utilities Via AMIBIOS Setup you can configure up to two user definable hard disk drive types You can easily configure systems with no video monitor keyboard or floppy disk d...

Page 14: ...coprocessor Expansion Slots The Enterprise III has eight 32 bit EISA expansion slots Six of these expansion slots are EISA bus mastering slots The other two slots are VL Bus bus mastering slots The VL Bus and EISA slots also can be used for 8 or 16 bit ISA adapter cards Seven DMA Channels The Enterprise III has seven DMA channels In accordance with the EISA specifications any DMA channel may be pr...

Page 15: ... Typical Interrupt Source Typical Interrupt Source 1 IRQ 0 Interval Timer 1 Counter 0 OUT 2 IRQ 1 Keyboard 3 10 IRQ 2 Used internally for IRQ 8 through IRQ 15 3 IRQ 8 Real TIme Clock 4 IRQ 9 EISA bus 5 IRQ 10 EISA bus 6 IRQ 11 EISA bus 7 IRQ 12 PS 2 Mouse 8 IRQ 13 Coprocessor Error 9 IRQ 14 EISA bus Hard disk drive controller 10 IRQ 15 EISA bus 11 IRQ 3 EISA bus Serial Port 2 12 IRQ 4 EISA bus Ser...

Page 16: ...t I O devices on both the VL Bus and the EISA bus I O Address Space The Enterprise III uses I O addresses x100h through x3FFh for ISA compatible I O x a don t care character which does not affect mapping location For example I O port addresses 0100h 1100h 2100h and 3100h map to the same location The Enterprise III also uses the following EISA I O port addresses s000h through s0FFh for EISA expansi...

Page 17: ...hare system resources including memory The Enterprise III supports refresh of system memory from channel microprocessors Keyboard and Keyboard Lock The Enterprise III has a five pin IBM AT compatible DIN connector and has a keyboard lock to prevent unauthorized access PS 2 Mouse A PS 2 mouse can be directly attached to a mouse connector mounted next to the keyboard connector Speaker The Enterprise...

Page 18: ...f the box is damaged call Technical Support at 404 246 8600 2 Perform all unpacking and installation procedures on a grounded anti static mat Wear an anti static wristband grounded at the same point as the anti static mat or use a sheet of conductive aluminum foil grounded through a 1 megohm resistor 3 The motherboard is packed in an anti static bag and sandwiched between sheets of sponge Remove t...

Page 19: ...prise III Motherboard Layout CPU and Upgrade Socket Intel 80486SX 80486DX or 8048DX2 CPUs can be inserted in the CPU socket An Intel 80487SX math coprocessor or an Upgrade Processor P23T or P24T can be inserted in the Upgrade Socket ...

Page 20: ...factory set to OFF and should remain OFF COL MONO Sets the video type It has no effect if an EGA or VGA adapter is used It is factory set to OFF for a monochrome display adapter Set ON to use a CGA video adapter card J2 Force Boot to Flash J2 is a two pin header next to the power supply connectors which should be OPEN the default setting Place a two pin shorting bridge on J2 only when the Flash EP...

Page 21: ...ocessor type Pins 1 2 and 3 4 are shorted if the Enterprise III EISA motherboard has an 80486DX or 80486DX2 microprocessor Pins 2 3 are shorted if the motherboard has an 80486SX processor Set J7 before installing the motherboard See the graphic on the following page for the location of J7 J7 look like this ...

Page 22: ... normal operation pins 1 2 are shorted when running Local Bus Adapter Cards at 33 MHz or less the default setting Short pins 2 3 if running Local Bus Adapter Cards at speeds higher than 33 MHz J30 is shown below Set J30 before installing the motherboard See the graphic on the next page for the location of J30 ...

Page 23: ...e pin header that selects the CPU priority Short pins 1 2 to set Low priority the default setting Short pins 2 3 to set High priority J20 J21 J24 Select Processor Speed Set the following two pin berg headers as described in the table below for 20 MHz operation Jumper Setting J20 CLOSED J21 OPEN J24 OPEN ...

Page 24: ...6 KB x 9 None None None 1 MB 256 KB x 9 256 KB x 9 None None 2 MB 1 MB x 9 None None None 4 MB 256 KB x 9 256 KB x 9 1 MB x 9 None 6 MB 1 MB x 9 1 MB x 9 None None 8 MB 256 KB x 9 256 KB x 9 1 MB x 9 1 MB x 9 10 MB 1 MB x 9 1 MB x 9 1 MB x 9 None 12 MB 1 MB x 9 1 MB x 9 1 MB x 9 1 MB x 9 16 MB 4 MB x 9 None None None 16 MB 256 KB x 9 256 KB x 9 4 MB x 9 None 18 MB 1 MB x 9 4 MB x 9 None None 20 MB...

Page 25: ...36256S 70 Oki MSC2320A 70YS9 PNY P36256 70 Samsung KMM536256B 7 1 MB x 36 Micron MT12D136M 7 Mistubishi MH1M36ADJ 7 PNY P361000 70 Motorola MCM36100AS 70 Oki MSC2355 70YS12 Samsung KMM5361000AV 7 4 MB x 36 Micron MT12D436M 7 Mitsubishi MH4M36SAJ 7 Motorola MCM36400S 70 PNY P364000 70 Samsung KMM5364100 7 16 MB x 36 Mitsubishi MH16M09J 7 Mitsubishi MH16M09TJ 7 Samsung KMM5916000 7 ...

Page 26: ... s Guide 51 Installing SIMMs The SIMM banks have four SIMM sockets each a total of 16 SIMM sockets The sockets take 256 KB x 9 1 MB x 9 4 MB x 9 or 16 MB x 9 SIMMs Use only one SIMM type to fill each bank The following shows the SIMM location ...

Page 27: ...f the SIMM facing you firmly push the SIMM into the socket When properly inserted the SIMM clicks in place as the latching pins engage as shown below Selecting SIMMs The SIMMs must meet the following specifications Parameter Specification Page Mode Fast Refresh CAS before RAS tCAC 20 ns tRAC 70 ns tAA 45 ns tRP 70 ns tCPA 45 ns ...

Page 28: ...board 80487SX An 80487SX math coprocessor can be installed only if the CPU is an 80486SX If installing an 80487SX make sure the 80487SX coprocessor speed is the same as the 80486SX speed 20 25 or 33 MHz Upgradeable Processor U33 can also be used to install a 169 pin Intel upgradeable processor such as an Intel P23T The installation process is the same as installing an Intel 80487SX When a 169 pin ...

Page 29: ...f pliers Install the component in the socket Align the pins and press the chip firmly in the socket making sure that pin 1 of the chip is aligned with pin 1 of the socket When an 80487SX or P23T is properly installed a row of empty socket pins should show on all four sides of the installed chip this will not happen with a P24T a P24T is a 240 pin chip that uses all socket pins See the graphic on t...

Page 30: ...sor is configured If the coprocessor is shown as Absent reinstall as follows Step Action 1 Turn the power off 2 Check the coprocessor orientation 3 Press the chip firmly to make sure that it is properly inserted 4 Inspect the coprocessor to make certain that all pins are connected 5 Power up again Call Technical Support at 404 246 8600 if still not configured ...

Page 31: ...crews should be supplied with the chassis Step Action 1 Wear an antistatic wristband Place the chassis for the motherboard on an anti static mat 2 Connect the chassis to ground to avoid static damage Connect an alligator clip with a wire lead to any unpainted part of the chassis Ground the other end of the lead to the same point as the mat and wristband ...

Page 32: ... component side up with the edge with three standoffs toward you and the edge with the power supply connector away from you The edge connectors for the adapter cards should be on the left 6 Carefully slide the motherboard into the chassis Make certain that the standoffs fit the slots provided for them If the standoffs are properly locked the motherboard should not slide It should also rest level w...

Page 33: ...ltage is selected Power supplies often can run on a wide range of voltages but must be set usually with a switch to the proper range Use at least a 230 watt power supply that has built in filters to suppress radiated emissions If all EISA expansion slots are filled a standard 200 250 watt power supply is not sufficient a 300 450 watt power supply is needed The location of the power supply connecto...

Page 34: ...ed Connect to P2 and P3 The connector with three red wires and two black wires is attached to P3 The connector with the Orange line 1 is attached to P2 P1 is provided for high capacity power supplies that have an extra cable The following graphic shows the wire colors for all power connectors ...

Page 35: ...Chapter 4 AMIBIOS POST 60 Power Supply Connectors are Keyed Power supply connectors are keyed to make sure you attach them correctly The keys must be cut to fit on some power supplies as shown below ...

Page 36: ...ed wire 3 12 Volts Yellow wire 4 12 Volts Blue wire 5 Ground Black wire 6 Ground Black wire P3 Pinout Pin Description 1 Ground Black wire 2 Ground Black wire 3 5 Volts White wire 4 VCC Red wire 5 VCC Red wire 6 VCC Red wire P1 Pinout Pin Description 1 VCC Red wire 2 VCC Red wire 3 VCC Red wire 4 Ground Black wire 5 Ground Black wire 6 Ground Black wire ...

Page 37: ... 7 Connect the Keyboard The keyboard connector is a five pin DIN socket see below labeled KEYBRD and J4 on the motherboard It accepts a standard ISA keyboard Pin Assignments 1 Keyboard clock 2 Keyboard data 3 Not used 4 Ground 5 VCC ...

Page 38: ... PS 2 compatible mouse The mouse connnectors are next to the keyboard connector Attach a customized serial cable from the mouse connector to a DB9 serial port connector You can order this cable from the American Megatrends Sales Department 404 263 8181 Ask for Cable Assembly DB9 Male 10 Pin part number CBLSUB1 10 J100 Pin 10 should be cut The connector position is shown above The J100 pinout and J...

Page 39: ...with the same color coded wires If so follow the wire to the switch or LED Pin 1 of all connectors is labeled on the following graphic and the motherboard Sometimes the label is obscured by a part You can always identify Pin 1 by looking at the other side of the motherboard All Pin 1 locations are always identified by a square pad Summary of Connectors Reset Switch cable to J9 Speaker cable to J8 ...

Page 40: ... the system when the Reset switch is pressed Pin 1 is ground and Pin 2 is Hard Reset The graphic above shows the location of J9 The following is an illustration of J9 J8 Speaker Connector J8 is a four pin single inline berg Pin 1 is labeled by a plus See the graphic at the top of the page for the J8 location J8 is shown below Pin Description 1 VCC 2 Key 3 Ground 4 Data Out ...

Page 41: ...to lock the keyboard protecting the system from unauthorized use Pin 1 of J10 on the motherboard is labeled with a plus sign The connector and the J10 pinout is shown below See the graphic at the top of the previous page for the J10 location Pin Description 1 LED power 2 Key 3 Ground 4 Keyboard Lock 5 Ground J1 DIAG LED Cable J1 is a two pin header that attaches via a two wire cable to the DIAG LE...

Page 42: ...Turbo LED to D5 D5 is shown below See the graphic at the top of page 65 for the D5 location J14 Turbo Switch Connector J14 is a two pin berg that connects to the turbo switch mounted on the chassis via a cable as shown below The turbo LED switch is bipolar You can select Low or High speed by pressing the turbo switch attached to J14 via a connector cable J14 is shown below See the graphic at the t...

Page 43: ... 68 Step 10 Install Adapter Cards The Enterprise III EISA motherboard has eight expansion slots numbered SLOT SLOT8 that can accept the following types of adapter cards See the following graphic for the location of the slots ...

Page 44: ...e 69 Type of Adapter Card Slots VL Bus Bus Mastering 32 bit Local Bus Adapter Cards Slots 7 and 8 EISA 32 bit Bus Mastering Cards Slots 1 6 EISA 32 bit Non Bus Mastering Cards Slots 7 and 8 Standard 8 bit XT and 16 bit AT compatible Cards Slots 1 8 ...

Page 45: ...A AT compatible Adapter Card can be inserted into the EISA connector only far enough to make contact with the upper row of contacts The longer fingers on EISA adapter cards allow contact with the second row of contacts See the following graphic When installing EISA adapter cards make sure that they snap in twice and are fully seated in the EISA expansion slot If the card makes contact only with th...

Page 46: ... B7 12 A8 SD01 B8 OWS A9 SD00 B9 12 A10 IOCHRDY B10 GND A11 AEN B11 SMEMW A12 SA19 B12 SMEMR A13 SA18 B13 IOW A14 SA17 B14 IOR A15 SA16 B15 DACK3 A16 SA15 B16 DREQ3 A17 SA14 B17 DACK1 A18 SA13 B18 DREQ1 A19 SA12 B19 REF A20 SA11 B20 SYSCLK A21 SA10 B21 IRQ7 A22 SA09 B22 IRQ6 A23 SA08 B23 IRQ5 A24 SA07 B24 IRQ4 A25 SA06 B25 IRQ3 A26 SA05 B26 DACK2 A27 SA04 B27 T C A28 SA03 B28 BALE A29 SA02 B29 5 A...

Page 47: ...MR D9 DREQ0 C10 MEMW D10 DACK5 C11 SD08 D11 DREQ5 C12 SD09 D12 DACK6 C13 SD10 D13 DREQ6 C14 SD11 D14 DACK7 C15 SD12 D15 DREQ7 C16 SD13 D16 5 C17 SD14 D17 MASTER C18 SD15 D18 GND 32 bit EISA Slot Pinout The following table identifies the pin values for the pins on each of the eight rows of pins on an EISA adapter card 8 and 16 bit ISA signals are shown Pins labeled xxxxxx are generally used to isol...

Page 48: ...EN 12 Reserved 12 SMRDC 12 Reserved 12 SA19 13 GND 13 IOWC 13 Reserved 13 SA18 14 Reserved 14 IORC 14 Reserved 14 SA17 15 BE 3 15 DAK 3 15 GND 15 SA16 16 Access Key 16 DRQ3 16 Access Key 16 SA15 17 BE 2 17 DAK 1 17 BE 1 17 SA14 18 BE 0 18 DRQ1 18 LA 31 18 SA13 19 GND 19 REFRESH 19 GND 19 SA12 20 5 volts 20 BCLK 20 LA 30 20 SA11 21 LA 29 21 IRQ 7 21 LA 28 21 SA10 22 GND 22 IRQ 6 22 LA 27 22 SA9 23 ...

Page 49: ... 5 GND 5 LA20 6 Access Key 6 IRQ 15 6 Access Key 6 LA19 7 D16 7 IRQ 14 7 D17 7 LA18 8 D18 8 DAK 0 8 D19 8 LA17 9 GND 9 DRQ 0 9 D50 9 MRDC 10 D51 10 DAK 5 10 D52 10 MWTC 11 D53 11 DRQ 5 11 GND 11 D8 12 D54 12 DAK 6 12 D55 12 D9 13 GND 13 DRQ 6 13 D56 13 D10 14 D57 14 DAK 7 14 D58 14 D11 15 Access Key 15 DRQ 7 15 Access Key 15 D12 16 D59 16 5 volts 16 GND 16 D13 17 5 volts 17 MASTER16 17 D30 17 D14 ...

Page 50: ...I EISA VLB Motherboard User s Guide 75 VL Bus Cards VL Bus cards use the standard ISA EISA connectors but they also have an additional 166 pin MCA connector inline with the EISA expansion card sockets as shown below ...

Page 51: ...ter cards Side A of the VL Bus connector is the component side Side B is the solder side The pinout for the VL Bus connector follows Pin Use Pin Use A1 DAT01 B1 DAT00 A2 DAT03 B2 DAT02 A3 GND B3 DAT04 A4 DAT05 B4 DAT06 A5 DAT07 B5 DAT08 A6 DAT09 B6 GND A7 DAT11 B7 DAT10 A8 DAT13 B8 DAT12 A9 DAT15 B9 VCC A10 GND B10 DAT14 A11 DAT17 B11 DAT16 A12 VCC B12 DAT18 A13 DAT19 B13 DAT20 A14 DAT21 B14 GND A...

Page 52: ... R A48 LRDY B48 RDYRTN A49 LDEV B49 GND A50 LREQ B50 IRQ9 A51 GND B51 BRDY A52 LGNT B52 BLAST A53 VCC B53 ID0 A54 ID5 B54 ID1 A55 ID3 B55 GND A56 ID4 B56 LCLK A57 LKEN B57 VCC A58 LEADS B58 LBS16 Step 11 Perform Initial Test and Configuration Before powering up the system _ make sure that all adapter cards are seated properly _ make sure all connectors are properly seated _ if a math coprocessor o...

Page 53: ...should appear on the monitor The BIOS Power On Self Test POST should run POST beeps or displays error messages is unsuccessful There is a serious problem if the system beeps The beeps are part of a Beep Code see page 80 that indicates a bad component Make sure the affected part is properly seated and connected If the BIOS is able to initialize the system video monitor messages described on page 81...

Page 54: ...nd Initialization test and initialize motherboards for normal operations and System Configuration Verification compare defined configuration with hardware actually installed BIOS Error Reporting If then the error occurs before the display device is initialized a series of beeps sound Beep codes indicate that a fatal error occurred The Beep Codes are described on the next page the error occurs afte...

Page 55: ... memory failure occurred within the first 64 KB of memory Or Timer 1 on the motherboard is not functioning 5 Processor error The CPU generated an error 6 8042 Gate A20 Failure Gate A20 on the keyboard controller 8042 allows the CPU to operate in protected mode The BIOS is not able to switch the CPU to protected mode 7 Processor Exception Interrupt Error The CPU generated an exception interrupt 8 D...

Page 56: ...ssage Line 2 Press the F1 key to continue and the system halts The system does not halt if Wait for F1 If Any Error in ADVANCED CMOS SETUP is Disabled Error Message Explanation 8042 Gate A20 Error Gate A20 on the keyboard controller 8042 is not working Replace the 8042 Address Line Short Error in the address decoding circuitry on the motherboard C Drive Error Drive C may be missing Run the BIOS Ha...

Page 57: ...tem is powered down HDD Controller Failure The BIOS cannot communicate with the hard disk controller Check all connectors after the system is powered down INTR 1 Error Interrupt channel 1 failed POST INTR 2 Error Interrupt channel 2 failed POST Invalid Boot Diskette The BIOS can read the diskette in floppy drive A but it cannot boot the system with it Use another boot diskette and follow the scree...

Page 58: ...h for Slot X Y Z The ID of the EISA Adapter Card in Slot X Y or Z does not match the ID in EISA CMOS RAM Invalid Configuration Information for Slot X Y Z The configuration information for EISA Adapter Cards X Y or Z is not correct The adapter card in this slot cannot be configured Run the ECU Software Port NMI Inoperational The software port NMI is not working EISA NMI Messages EISA NMI Message Ex...

Page 59: ... Disk C Type Hard Disk D Type Serial Port s Parallel Port s 640 KB 15360 KB 44 None 3F8 378 33MHz CPU Clock 256KB CACHE MEMORY BIOS Identification Strings The BIOS Identification String is displayed at the bottom of the screen during the memory test You will need this string when reporting AMIBIOS problems AMIBIOS C 1992 American Megatrends Inc BIOS Release 68121892 XXXXX KB OK Press DEL if you wa...

Page 60: ...binations through AMIBCP The above settings are the default settings Cache Memory Enable You can enable both internal and external cache memory by pressing Ctrl Alt Shift You can disable cache memory by pressing Ctrl Alt Shift Of course the OEM can modify these keystroke combinations through AMIBCP The above settings are the default settings AMIBIOS Setup Parts AMIBIOS Setup is divided into three ...

Page 61: ...disk drives monitor type and the keyboard ADVANCED CMOS SETUP ADVANCED CMOS SETUP discussed in Section 3 beginning on page 95 configures the system password keyboard typematic rate boot sequence and speed and enables system performance features such as Fast Gate A20 support ADVANCED CHIPSET SETUP ADVANCED CHIPSET SETUP configures chipset specific options and is discussed in Section 4 beginning on ...

Page 62: ...em is configured with these values when powered on Default Values If the configuration values in CMOS RAM become corrupted the system is configured with the default settings stored in this ROM file There are two sets of BIOS settings stored in the ROM file the BIOS Setup defaults and the Power On defaults See page 89 for more information on default settings Starting AMIBIOS Setup When POST complet...

Page 63: ...round colors F5 Restores the settings resident when the current Setup session began These settings are taken from CMOS RAM if CMOS RAM was uncorrupted at the start of the session Otherwise the BIOS Setup default settings are used F6 Loads all options in ADVANCED CMOS SETUP and ADVANCED CHIPSET SETUP with the BIOS Setup defaults F7 Loads all options in ADVANCED CMOS SETUP and ADVANCED CHIPSET SETUP...

Page 64: ...ally loaded Highlight this option type Y and press Enter to use BIOS defaults The following appears Default values loaded Press any key to continue Auto Configuration With Power On Defaults This option configures the Power On default settings for all AMIBIOS Setup options These are not optimal for system performance but are the most stable settings Use this option as a diagnostic aid if the system...

Page 65: ...ed in CMOS RAM A checksum is calculated and written to CMOS RAM Control is passed to AMIBIOS Write to CMOS and Exit Y N appears when you press Enter when this option is highlighted Type N and press Enter to return to the Main Menu Type Y and press Enter to save the system parameters and continue the boot process Do Not Write to CMOS RAM and Exit This option passes control to AMIBIOS After this opt...

Page 66: ...ETUP Options Date And Day Configuration Move the cursor to the Date field via or and set the Date and Day by pressing PgUp and PgDn to change the settings Ranges for each setting are shown in the lower right corner of the screen Time Configuration Move the cursor to the Time field via and and set the time by pressing PgUp and PgDn This option uses a 24 hour clock format i e for PM numbers add 12 t...

Page 67: ... shown on the following page Parameter Description Type The number designation for a drive with certain identification parameters Cylinders The number of cylinders in the disk drive Heads The number of heads in the disk drive Write Precompensation The size of a sector gets progressively smaller as the track diameter diminishes Yet each sector must still hold 512 bytes Write precompensation circuit...

Page 68: ...7 MB 19 1024 7 512 1023 17 60 MB 20 733 5 300 732 17 30 MB 21 733 7 300 732 17 43 MB 22 733 5 300 733 17 30 MB 23 306 4 0 336 17 10 MB 24 925 7 0 925 17 54 MB 25 925 9 65535 925 17 69 MB 26 754 7 754 754 17 44 MB 27 754 11 65535 754 17 69 MB 28 699 7 256 699 17 41 MB 29 823 10 65535 823 17 68 MB 30 918 7 918 918 17 53 MB 31 1024 11 65535 1024 17 94 MB 32 1024 15 65535 1024 17 128 MB 33 1024 5 1024...

Page 69: ... Not Installed is selected Primary Display Use PgUp or PgDn to select a setting The settings are Monochrome Color 40x25 Color 80x25 VGA PGA EGA or Not Installed which could be used for network file servers The BIOS does not generate missing monitor messages if Not Installed is selected Keyboard Use PgUp or PgDn to select a setting The settings are Installed or Not Installed Use Not Installed in a ...

Page 70: ...Up Sequence C A System Boot Up CPU Speed High External Cache Memory Enabled Internal Cache Memory Enabled Password Checking Option Setup Video ROM Shadow C000 32K Enabled Adaptor ROM Shadow C800 32K Enabled Adaptor ROM Shadow D000 32K Disabled Adaptor ROM Shadow D800 32K Disabled System ROM Shadow F000 64K Enabled Shadow RAM Write Protection Enabled BootSector Virus Protection Enabled ESC Exit Sel...

Page 71: ... it repeats at the Typematic Rate The Typematic Rate Delay BIOS and Power On defaults are 500 The Typematic Rate BIOS default is 30 The Power On default is 15 Mouse Support Option This option enable PS 2 mouse support The settings are Enabled or Disabled The BIOS and Power On default is Disabled System Boot Up Num Lock This option turns off Num Lock when the system is powered on so you can use the...

Page 72: ...emory external to the microprocessor The settings are Enabled or Disabled The BIOS Default is Enabled The Power On Default is Disabled Internal Cache Memory This option enables the 8 KB of cache memory in the 80486 microprocessor The settings are Enabled or Disabled The BIOS default is Enabled The Power On default is Disabled Password Checking Option This option enables the password feature The se...

Page 73: ...her BIOSes may be located in these segments Shadowing speeds execution System ROM Shadow E000 128K The EISA System AMIBIOS at E0000h FFFFh is shadowed when this option is enabled The settings are Enabled or Disabled The system BIOS should always be shadowed for faster execution The BIOS and Power On default is Enabled Shadow RAM Write Protection When enabled this option makes sure that code that r...

Page 74: ...ve The settings are Enabled or Disabled If enabled the following is displayed if any program attempts to write to the boot sector You may have to type N several times to prevent the boot sector write Boot Sector Write Possible VIRUS Continue Y N _ The following is displayed if any program attempts to format any cylinder head or sector of any hard disk drive via the BIOS INT 13 Hard Disk Drive Serv...

Page 75: ...e Disabled F000 Shadow RAM Cacheable Disabled I O Recovery Select 11 BCLKs ESC Exit Sel Ctrl Pu Pd Modify F1 Help F2 F3 Color F5 Old Values F6 BIOS Setup Defaults F7 Power On Defaults Important Options The ADVANCED CHIPSET SETUP options used most often are Local Bus I O Recovery Select C000 Shadow RAM Cacheable and E000 Shadow RAM Cacheable Help Screens Context sensitive Help is provided for every...

Page 76: ...on Cacheable Area 1 The user can select a block of memory Non Cacheable Area 1 that cannot be cached and therefore cannot be written to inadvertently This option selects the allocation method used for Non Cacheable Block 1 The settings are DRAM local DRAM or ATBus DRAM is disabled and the AT bus is used The BIOS and Power On Defaults are DRAM Non Cacheable Area 1 Size This option sets the size of ...

Page 77: ...hat the applications running on this system does not write to the C000 0 07FFFh area The BIOS Setup and Power On default is Disabled F000 Shadow RAM Cacheable The settings are Enabled the 64 KB address segment at F000h FFFFh can be cached in the 8 KB 80486 internal cache or Disabled The BIOS and Power On Defaults are Disabled This internal cache memory cannot be write protected It may be corrupted...

Page 78: ...n 80486DX2 CPU is installed If I O recovery time is insufficient device drivers particularly those for Unix and Xenix will fail The settings are 3 BCLKs 4 BCLKs 5 BCLKs or 11 BCLKs The setting of this option is related to the processor speed as shown in the following table If the CPU type and speed is choose 25 MHz 80486DX 33 MHz 80486DX 3 BCLKs 50 MHz 80486DX 5 BCLKs 50 MHz 80486DX2 5 BCLKs 66 MH...

Page 79: ...ETUP see page 97 by choosing either Always the password prompt appears every time the system is powered on or Setup the password prompt appears only when AMIBIOS Setup is run The password is stored in CMOS RAM The system asks for a password Enter a 1 6 character password The password does not appear on the screen when typed Make sure you write it down If you forget it you must drain CMOS RAM and r...

Page 80: ... The password is stored in CMOS RAM after Setup completes The next time the system boots you are prompted for the password if the password function is present and is enabled Password Options Control Prompt When and if the prompt appears depends on the Password Option settings in ADVANCED CMOS SETUP If Always was set in ADVANCED CMOS SETUP the prompt appears when the system is powered on If Setup w...

Page 81: ...nterleave Determines the optimum interleave factor and then performs a low level format of the hard disk drive Page 110 Media Analysis Analyzes each hard disk drive track to determine whether it is usable The track is labeled bad if unusable Page 55 The hard disk utility error messages are described on page 112 These routines work on drives that use the MFM RLL ARLL or ESDI data recording techniqu...

Page 82: ...terleave factor and the drive is preformatted None Installing a new hard disk You do not have a list of bad tracks Media Analysis Installing a new hard disk You do not know the optimum interleave factor Auto Interleave Installing a new hard disk The drive is not formatted Hard Disk Format Installing a used hard disk drive N A All Hard Disk Utilities When Hard Disk Diagnostics is selected the follo...

Page 83: ...ard disk before running this utility This routine does not work on IDE or SCSI drives Use Hard Disk Format to integrate a new hard disk to the system or to reformat a used hard disk which has bad tracks as a result of aging or poor handling Select Media Analysis to find bad tracks The following screen appears when Hard Disk Format is selected ...

Page 84: ...ctor can be selected manually or determined by the Auto Interleave routine The hard disk drive manufacturer usually provides a list of bad tracks Enter these tracks They are then labeled as bad to prevent data from being stored on them The following screen is displayed after entering Y in Mark Bad Tracks pressing Enter and selecting add delete revise or clear from the Bad Track Edit Menu Type Y an...

Page 85: ...disk for each transfer rate calculated The cylinders heads and sectors formatted for each value is displayed in the activity box It does not work on IDE or SCSI drives Select Auto Interleave on the main Hard Disk Utility Screen and press Enter The following appears The cursor is on Mark Bad Tracks The default is N To mark additional bad tracks type Y and press Enter After selecting options from th...

Page 86: ... test writes to all cylinders and heads on the hard disk to verify any bad tracks the test requires several minutes to complete For best results run this test in its entirety Media Analysis does not work on IDE or SCSI drives Select Media Analysis from the main Hard Disk Utility Menu and press Enter The following screen appears The cursor is on Proceed The warning screen appears Press Enter to sto...

Page 87: ...RROR Bad Hard Disk No response from the hard disk or the hard disk is not repairable Check all cable and power connections to the hard disk Hard Disk Controller Failure Error response from the reset command sent to the hard disk controller The controller may not be seated properly C D Hard Disk Failure The hard disk drive C or D is not responding to commands Check power and cable connections to th...

Page 88: ... disk drive timed out The hard disk drive utility waited beyond a preset specified time limit Drive Parameter Activity Failed A reset command was sent to the controller followed by drive parameters Using these parameters the controller did not get a response from the hard disk Make sure the drive type is correct ECC Corrected Data Error The ECC value read from the disk is not the same value which ...

Page 89: ...e information contained in it can be easily enhanced or updated via code on a floppy disk The Boot Block BIOS utility updates the Flash EPROM If the system AMIBIOS for the Enterprise III motherboard needs to be updated American Megatrends will provide a BIOS update file and the Boot Block BIOS Utility Why Use Flash EPROMs To effect a BIOS change in a system with a traditional BIOS EPROM you must r...

Page 90: ...d or J2 is shorted it does not pass control to the system BIOS but instead looks for a floppy disk to reprogram the system BIOS What the Boot Block Code Does The Boot Block code 1 reads S68P ROM from the root directory of the floppy disk in drive A 2 erases the Flash EPROM 3 programs the Flash EPROM with the data read from the floppy disk in drive A and 4 generates a CPU reset rebooting the system...

Page 91: ...n the Enterprise III motherboard is the Force Boot jumper next to the keyboard DIN plug The following graphic shows the Enterprise III EISA VLB motherboard J2 is in the top right corner Short J2 to reprogram the system BIOS with the new BIOS file on the floppy disk ...

Page 92: ...IOS attempts to read from floppy drive A 2 Look for S68P ROM on the floppy disk The BIOS searches for S68P ROM in the root directory of the floppy disk in drive A It does not beep if this step is completed successfully 3 Read the floppy disk The BIOS reads the floppy disk It does not beep if this step is completed successfully 4 Check for BIOS file size The BIOS checks the BIOS file size It does n...

Page 93: ...p There is no floppy disk in Drive A 2 Five Beeps S68P ROM is not present in the root directory of the floppy disk in the A drive 3 Seven Beeps Floppy Read Error 4 Six Beeps BIOS File Size Error 5 Eight Beeps An Intel i28F001BX T Flash EPROM is not present 6 Continuous Two Beeps There is a problem in erasing the Flash EPROM 7 Continuous Three Beeps There is a problem in programming the Flash EPROM...

Page 94: ...r 67h Initialize the interrupt controller 80h Initialize the I O chipset if any 85h Enable the appropriate IRQs 86h Enable the internal cache memory 88h Initialize the floppy drives 90h Indicate an error The BIOS stops here if there is an error A0h Reading the floppy disk in drive A to program the Flash EPROM E0h Configure the proper stack E3h Display a message to ask the user to insert the Boot B...

Page 95: ...Temperature specifications vary with the CPU frequency Frequency Heat Sink Airflow over CPU Airflow over other components Temperature Range 20 or 25 MHz NO 400 feet per minute Not critical 0 through 47 C 33 MHz NO 400 feet per minute Not critical 0 through 36 C 50 MHz YES 200 feet per minute Not critical 0 through 50 C Humidity The recommended humidity range for operation of the American Megatrend...

Page 96: ...al power consumption for EISA expansion slots is 36 Amps The total maximum power consumption is 44 Amps at 5V with a 220 Watt power supply Power Source Three power connectors P1 P2 and P3 are provided on the Enterprise III EISA motherboard These connectors provide seven 5V connects Each is rated at approximately 5 Amps The total power consumption for all three connectors is approximately 35 Amps C...

Page 97: ...wer is concentrated in a small area it is necessary to remove the heat generated by this power consumption For this reason we have supplied a heat sink with all American Megatrends motherboards that have a 50 MHz 80486DX DX2 or 66 MHz 80486DX2 CPU Since American Megatrends manufactures only the motherboard and CPU Card system components American Megatrends has no control over operating factors suc...

Page 98: ...hour Expected Results If the temperature on the surface of the heat sink is 75 degrees centigrade or below there will be no problem with the operation of the computer Identifying a Problem If the temperature exceeds 75 degrees centigrade the system integrator must take the necessary measures to ensure that the CPU does not overheat Potential Solutions Install a fan to increase the air flow over th...

Page 99: ...configuring an EISA system with many EISA adapter cards Motherboard Configuration Serial Number __________________________ Revision Number ________________________ ECN Number _____________________________ Memory Type for Bank0 and Bank1 ___ 1 MB x 9 SIMMs check the type used ___ 4 MB x 9 SIMMs ___ 16 MB x 9 SIMMs Memory Type for Bank2 Bank3 ___ 1 MB x 9 SIMMs Bank5 and Bank6 ___ 4 MB x 9 SIMMs ___...

Page 100: ...te this sheet if there are more than two memory banks Amount of Memory __________________________ Starting Address hex ___________________________ Cacheable ___ Yes ___ No Type ___ RAM ___ ROM Use ___ System ___ Expanded ___ Virtual ___ Other Amount of Memory ___________________________ Starting Address hex ___________________________ Cacheable ___ Yes ___ No Type ___ RAM ___ ROM Use ___ System __...

Page 101: ... IRQ14 ___ IRQ15 Share ___ Yes ___ No Level Triggered Interrupts Interrupt line used ___ IRQ3 ___ IRQ4 ___ IRQ5 ___ IRQ6 ___ IRQ7 ___ IRQ9 ___ IRQ10 ___ IRQ11 ___ IRQ12 ___ IRQ14 ___ IRQ15 Switch and Jumper Settings Switch and Jumper Settings Switch and Jumper Settings Switch and Jumper Settings ______________________________________________________________ ________________________________________...

Page 102: ...te this sheet if there are more than two memory banks Amount of Memory ___________________________ Starting Address hex ___________________________ Cacheable ___ Yes ___ No Type ___ RAM ___ ROM Use ___ System ___ Expanded ___ Virtual ___ Other Amount of Memory ___________________________ Starting Address hex ___________________________ Cacheable ___ Yes ___ No Type ___ RAM ___ ROM Use ___ System _...

Page 103: ... IRQ14 ___ IRQ15 Share ___ Yes ___ No Level Triggered Interrupts Interrupt line used ___ IRQ3 ___ IRQ4 ___ IRQ5 ___ IRQ6 ___ IRQ7 ___ IRQ9 ___ IRQ10 ___ IRQ11 ___ IRQ12 ___ IRQ14 ___ IRQ15 Switch and Jumper Settings Switch and Jumper Settings Switch and Jumper Settings Switch and Jumper Settings ______________________________________________________________ ________________________________________...

Page 104: ...te this sheet if there are more than two memory banks Amount of Memory ___________________________ Starting Address hex ___________________________ Cacheable ___ Yes ___ No Type ___ RAM ___ ROM Use ___ System ___ Expanded ___ Virtual ___ Other Amount of Memory ___________________________ Starting Address hex ___________________________ Cacheable ___ Yes ___ No Type ___ RAM ___ ROM Use ___ System _...

Page 105: ... IRQ14 ___ IRQ15 Share ___ Yes ___ No Level Triggered Interrupts Interrupt line used ___ IRQ3 ___ IRQ4 ___ IRQ5 ___ IRQ6 ___ IRQ7 ___ IRQ9 ___ IRQ10 ___ IRQ11 ___ IRQ12 ___ IRQ14 ___ IRQ15 Switch and Jumper Settings Switch and Jumper Settings Switch and Jumper Settings Switch and Jumper Settings ______________________________________________________________ ________________________________________...

Page 106: ...te this sheet if there are more than two memory banks Amount of Memory ___________________________ Starting Address hex ___________________________ Cacheable ___ Yes ___ No Type ___ RAM ___ ROM Use ___ System ___ Expanded ___ Virtual ___ Other Amount of Memory ___________________________ Starting Address hex ___________________________ Cacheable ___ Yes ___ No Type ___ RAM ___ ROM Use ___ System _...

Page 107: ... IRQ14 ___ IRQ15 Share ___ Yes ___ No Level Triggered Interrupts Interrupt line used ___ IRQ3 ___ IRQ4 ___ IRQ5 ___ IRQ6 ___ IRQ7 ___ IRQ9 ___ IRQ10 ___ IRQ11 ___ IRQ12 ___ IRQ14 ___ IRQ15 Switch and Jumper Settings Switch and Jumper Settings Switch and Jumper Settings Switch and Jumper Settings ______________________________________________________________ ________________________________________...

Page 108: ...te this sheet if there are more than two memory banks Amount of Memory ___________________________ Starting Address hex ___________________________ Cacheable ___ Yes ___ No Type ___ RAM ___ ROM Use ___ System ___ Expanded ___ Virtual ___ Other Amount of Memory ___________________________ Starting Address hex ___________________________ Cacheable ___ Yes ___ No Type ___ RAM ___ ROM Use ___ System _...

Page 109: ...RQ12 ___ IRQ14 ___ IRQ15 Share ___ Yes ___ No Level Triggered Interrupts Interrupt line used ___ IRQ3 ___ IRQ4 ___ IRQ5 ___ IRQ6 ___ IRQ7 ___ IRQ9 ___ IRQ10 ___ IRQ11 ___ IRQ12 ___ IRQ14 ___ IRQ15 Switch and Jumper Settings Switch and Jumper Settings Switch and Jumper Settings Switch and Jumper Settings _________________________________________________________ _____________________________________...

Page 110: ...te this sheet if there are more than two memory banks Amount of Memory ___________________________ Starting Address hex ___________________________ Cacheable ___ Yes ___ No Type ___ RAM ___ ROM Use ___ System ___ Expanded ___ Virtual ___ Other Amount of Memory ___________________________ Starting Address hex ___________________________ Cacheable ___ Yes ___ No Type ___ RAM ___ ROM Use ___ System _...

Page 111: ...RQ12 ___ IRQ14 ___ IRQ15 Share ___ Yes ___ No Level Triggered Interrupts Interrupt line used ___ IRQ3 ___ IRQ4 ___ IRQ5 ___ IRQ6 ___ IRQ7 ___ IRQ9 ___ IRQ10 ___ IRQ11 ___ IRQ12 ___ IRQ14 ___ IRQ15 Switch and Jumper Settings Switch and Jumper Settings Switch and Jumper Settings Switch and Jumper Settings _________________________________________________________ _____________________________________...

Page 112: ...banks Duplicate this sheet if there are more than two memory banks Amount of Memory ___________________________ Starting Address hex ___________________________ Cacheable ___ Yes ___ No Type ___ RAM ___ ROM Use ___ System ___ Expanded ___ Virtual ___ Other Amount of Memory ___________________________ Starting Address hex ___________________________ Cacheable ___ Yes ___ No Type ___ RAM ___ ROM Use...

Page 113: ... IRQ14 ___ IRQ15 Share ___ Yes ___ No Level Triggered Interrupts Interrupt line used ___ IRQ3 ___ IRQ4 ___ IRQ5 ___ IRQ6 ___ IRQ7 ___ IRQ9 ___ IRQ10 ___ IRQ11 ___ IRQ12 ___ IRQ14 ___ IRQ15 Switch and Jumper Settings Switch and Jumper Settings Switch and Jumper Settings Switch and Jumper Settings ______________________________________________________________ ________________________________________...

Page 114: ...banks Duplicate this sheet if there are more than two memory banks Amount of Memory ___________________________ Starting Address hex ___________________________ Cacheable ___ Yes ___ No Type ___ RAM ___ ROM Use ___ System ___ Expanded ___ Virtual ___ Other Amount of Memory ___________________________ Starting Address hex ___________________________ Cacheable ___ Yes ___ No Type ___ RAM ___ ROM Use...

Page 115: ... IRQ14 ___ IRQ15 Share ___ Yes ___ No Level Triggered Interrupts Interrupt line used ___ IRQ3 ___ IRQ4 ___ IRQ5 ___ IRQ6 ___ IRQ7 ___ IRQ9 ___ IRQ10 ___ IRQ11 ___ IRQ12 ___ IRQ14 ___ IRQ15 Switch and Jumper Settings Switch and Jumper Settings Switch and Jumper Settings Switch and Jumper Settings ______________________________________________________________ ________________________________________...

Page 116: ...Enterprise III EISA VLB Motherboard User s Guide 141 ...

Page 117: ...142 Index ...

Page 118: ...t Sector Virus Protection 65 Built in Battery 9 C Drive Error 46 C000 Shadow RAM Cacheable 68 C000h 68 Cables 30 Cache Write Back 67 CMOS Display Type Mismatch 47 CMOS Shutdown Register Read Write Error 45 CMOS System Options Not Set 47 Configuring System 41 Connectors D5 Turbo LED Connector 33 EISA 38 ISA 37 J10 Keyboard Lock Connector 32 J14 Turbo Switch Connector 33 J3 Keyboard Connector 28 29 ...

Page 119: ...78 When to use 73 Hard Disk Utility 72 Heat Sink for 50 MHz CPUs 6 I O Port 80h 43 I O Recovery Select 69 Installing Adapter Cards 34 36 37 40 41 Installing the Motherboard 24 Intel 28F001BX T 80 Intel Upgradable Processor 22 Interleave factor 76 Internal Cache Memory 63 J1 DIAG LED Cable 32 J10 Keyboard Lock Connector 32 J10 Select Processor Type 16 J14 Turbo Switch 33 J19 CPU Priority 17 J2 Forc...

Page 120: ...CHIPSET SETUP 66 ADVANCED CMOS SETUP 60 Auto Configuration 54 Auto Configuration BIOS Defaults 54 Auto Configuration Power On Defaults 54 Exiting 55 Floppy Drive Seek At Boot 62 Floppy Drives 59 Key Usage 53 Keyboard 59 Monitor 59 Options Main Menu 54 Password Check 63 ROM Shadow 63 Running Setup 52 Standard CMOS Setup 56 System Boot Up CPU Speed 62 System Boot Up Num Lock 62 System Boot Up Sequen...

Page 121: ...lation steps 13 Interrupts 10 ISA Card Pinouts 36 37 Keyboard connector pinouts 28 Keyboard Lock connector pinouts 32 Math coprocessor test 23 Memory configurations 18 Microprocessors supported 6 Motherboard installation 24 Mouse connector pinouts 29 NMI error messages 48 POST Memory Test 49 Power Connector pinouts 27 SIMM part numbers 19 Speaker connector pinouts 31 Unpacking instructions 13 Tabl...

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