American Megatrends 87 Series User Manual Download Page 99

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Enterprise-IV EISA VLB Motherboard User's Guide

101

EISA Slot 4,

cont'd

Interrupt Description

Edge-Triggered Interrupts

Interrupt line used:

___ IRQ3 ___ IRQ4
___ IRQ5 ___ IRQ6
___ IRQ7 ___ IRQ9
___ IRQ10

___ IRQ11

___ IRQ12

___ IRQ14
___ IRQ15

___ Yes

___ No

Level-Triggered Interrupts

Interrupt line used:

___ IRQ3 ___ IRQ4
___ IRQ5 ___ IRQ6
___ IRQ7 ___ IRQ9
___ IRQ10

___ IRQ11

___ IRQ12

___ IRQ14
___ IRQ15

Switch and Jumper Settings

______________________________________________________________

Summary of Contents for 87 Series

Page 1: ...American Megatrends Inc Series 87 Enterprise IV 80486 EISA VLB Motherboard User s Guide MAN 687 9 8 94 ...

Page 2: ... 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 is a registered trademark of Intel Corporation MS DOS Xenix and Microsoft are registered trademarks of Microsoft Corporation Microsoft Windows and Windows NT are trademarks o...

Page 3: ...er 5 AMIBIOS Setup 47 Section 1 Running AMIBIOS Setup 49 Section 2 STANDARD CMOS SETUP 53 Date And Day Configuration 53 Time Configuration 53 Hard Disk Drive C and D 54 Using Auto Detect Hard Disk 54 Hard Disk Drive Types 55 Floppy Drive A and Floppy Drive B 56 Primary Display 56 Keyboard 56 Section 3 ADVANCED CMOS SETUP 57 Typematic Rate Programming 58 Typematic Rate Delay 58 Typematic Rate 58 Mo...

Page 4: ...e 64 Non Cacheable Area 1 Start 64 I O Recovery Select 65 Hidden Refresh 65 Section 4 ADVANCED CHIPSET SETUP 67 On Board Serial Port 1 67 On Board Serial Port 2 68 On Board Parallel Port 68 On Board Floppy Controller 68 On Board IDE Controller 68 Section 5 AMIBIOS Password Support 69 Section 6 Hard Disk Utility 71 Appendix A Temperature and Power Considerations 79 Appendix B Heat Dissipation 81 Ap...

Page 5: ...in the proper installation and operation of the Enterprise IV motherboard This manual is not meant to be read by the computer owner who purchases a computer with the Enterprise IV 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 Enter...

Page 6: ...using a non HST modem call 404 246 8782 BBS Phone Numbers The following table lists the characteristics of the BBS phone numbers The BBS requires no parity 8 data bits and 1 stop bit Phone Number Characteristics 404 246 8780 Supports HST and v 42bis 404 246 8781 Supports HST and v 42bis 404 246 8782 Dual standard Can handle 2400 or 9600 bps Supports v 32bis and v 42bis Can handle up to 14 400 baud...

Page 7: ...80486 Local Bus Design The general architecture of the VL Bus is 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 IV motherboard have bus mastering ca...

Page 8: ...is an EISA non bus mastering slot EISA or ISA adapter cards 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 use a 32 bit MCA connector a total of 64 bits The VL Bus...

Page 9: ...erprise IV EISA Local Bus motherboard is approximately 8 by 13 similar in size to a standard Baby AT motherboard The mounting hole locations permit the motherboard to be used with any Baby 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 10: ...6 MHz internal 486SX 486SX 20 or 25 MHz P24 empty 25 MHz or 33 MHz P24T empty 25 MHz 50 MHz internal 33 MHz 66 MHz internal 487SX 486SX or none 20 25 or 33 MHz Intel Overdrive P23T empty 25 MHz 50 MHz internal 33 MHz 66 MHz internal CPU Sockets The Enterprise IV may come with a factory mounted 486DX or 486SX It also has a 240 pin PGA ZIF upgrade processor socket for an Intel 80486DX 80486SX 80486D...

Page 11: ...al information about heat dissipation Processor Speeds The Enterprise IV operates at either of two speeds high or low High speed is set at time of manufacture to the processor speed 25 33 50 or 66 MHz A low speed that is approximately the same speed as an original IBM AT is simulated by adding extra cycles The clock speeds can be changed via the Ctrl Alt and Ctrl Alt keychords These keychords can ...

Page 12: ...by pressing Ctrl Alt Shift and disabled by pressing Ctrl Alt Shift SRAM Type The Enterprise IV EISA VLB motherboard uses 15 ns 32 KB x 8 SRAM DIPs for cache memory ROM The Enterprise IV EISA VLB motherboard has 128 KB of Read Only Memory in an EPROM used for the system BIOS at E0000h FFFFFh Shadow RAM AMIBIOS Setup allows you to selectively shadow the 128 KB system BIOS video BIOS in 32 KB increme...

Page 13: ... system configuration data ISA CMOS RAM the real time clock and the battery are on the Dallas DS1387 CMOS RAM RTC chip The Enterprise IV EISA VLB motherboard also includes an additional 4 KB of EISA Extended CMOS RAM Built in Battery The Enterprise IV EISA VLB motherboard uses a Dallas DS1387 CMOS RAM chip with a built in battery Math Coprocessor Enterprise IV motherboards equipped with an 80486SX...

Page 14: ... 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 Onboard serial port or EISA bus 12 IRQ 4 Onboard serial port or EISA bus 13 IRQ 5 Onboard parall...

Page 15: ...I O devices on both the VL Bus and the EISA bus I O Address Space The Enterprise IV 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 IV also uses the following EISA I O port addresses s000h through s0FFh for EISA expansion s...

Page 16: ...rces including memory The Enterprise IV supports refresh of system memory from channel microprocessors Keyboard and Keyboard Lock The Enterprise IV 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 used via a cable attached to a 10 pin berg mouse connector mounted next to the keyboard connector Speaker The Enterpris...

Page 17: ... 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 th...

Page 18: ...Enterprise IV EISA VLB Motherboard User s Guide 21 ...

Page 19: ...FF 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 J15 J16 J43 CPU Select J15 a four pin berg J16 a three pin berg and J43 a two pin berg together select the CPU type CPU in ZIF Socket PQFP CPU J43 J15 J16 None 486DX SX OPEN N A N A P23T 487SX or P24...

Page 20: ...Enterprise IV EISA VLB Motherboard User s Guide 23 Step 2 Set Switch and Jumper Options Continued J15 Select CPU Type J16 Select CPU Type J43 Select CPU Type ...

Page 21: ...ards at 33 MHz or less the default setting Short pins 2 3 if running Local Bus Adapter Cards at speeds higher than 33 MHz J38 is shown below Set J38 before installing the motherboard See the graphic on the next page for the location of J38 J31 CPU Priority J31 is a three 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 prior...

Page 22: ... MB 256 KB x 36 256 KB x 36 None None 2 MB 1 MB x 36 None None None 4 MB 256 KB x 36 256 KB x 36 1 MB x 36 None 6 MB 1 MB x 36 1 MB x 36 None None 8 MB 256 KB x 36 256 KB x 36 1 MB x 36 1 MB x 36 10 MB 1 MB x 36 1 MB x 36 1 MB x 36 None 12 MB 1 MB x 36 1 MB x 36 1 MB x 36 1 MB x 36 16 MB 4 MB x 36 None None None 16 MB 256 KB x 36 256 KB x 36 4 MB x 36 None 18 MB 1 MB x 36 4 MB x 36 None None 20 MB...

Page 23: ...S 70 PNY P364000 70 Samsung KMM5364100 7 16 MB x 36 Mitsubishi MH16M09J 7 Mitsubishi MH16M09TJ 7 Samsung KMM5916000 7 Installing SIMMs The system memory banks consist of four SIMM sockets The sockets take 256 KB x 36 1 MB x 36 4 MB x 36 or 16 MB x 36 SIMMs Use only one SIMM type to fill each bank Place the motherboard on an anti static mat With the component side of the SIMM facing you firmly push...

Page 24: ...oard User s Guide 27 Step 3 Install Memory Continued 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 25: ...e procedures in this section exactly as documented Processor Type and Speed The Upgrade Processor socket is a 240 pin socket near one edge of the board The Enterprise IV VLB EISA motherboard supports the following CPUs and Upgrade Processors Upgrade Processor in ZIF Socket PQFP CPU None 486DX P23T 487SX or P24T 486DX P23T 487SX or P24T 486DX or 486DX2 486DX or 486DX2 486DX 486SX 486SX 486DX The En...

Page 26: ...board which corresponds to pin 1 of the Upgrade Processor Check for bent pins on the Upgrade Processor chip Gently straighten any bent pins with pliers Place the Upgrade Processor squarely in the middle of the socket making sure that one row of socket pins shows on all four sides Make sure that pin 1 of the Upgrade Processor is aligned with pin 1 of the socket 3 The Upgrade Processor socket is a 2...

Page 27: ...the chassis so that the front is to the right and the rear is to the left The side facing you is where the motherboard is mounted The power supply is mounted near the back end of the chassis 4 Push four nylon standoffs from the solder side of the motherboard in the holes provided for them The standoffs lock in place 5 Find the slots provided for the standoffs on the chassis Hold the motherboard co...

Page 28: ......

Page 29: ...Enterprise IV EISA VLB Motherboard User s Guide 31 The motherboard mounting hole locations are shown below Legend screw hole Mounting hole ...

Page 30: ...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 connectors P1 P2 and P3 is shown in the following graphic Connect to P1 and P2 The connector with three red wires and two black wires is attached to P2 Th...

Page 31: ...rd User s Guide 33 Step 6 Connect the Power Supply Continued 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 32: ...Volts Yellow wire 4 12 Volts Blue wire 5 Ground Black wire 6 Ground Black wire P2 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 P3 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 33: ... 4 Ground 5 VCC Step 8 Connect the Mouse The American Megatrends Enterprise IV EISA VLB motherboard mouse connector is a 10 pin berg connector J11 is a 10 pin berg connector that attaches to a PS 2 compatible mouse via a standard serial cable The mouse connector is next to the keyboard connector The connector position is shown above The J11 pinout and J11 are shown below Pin Assignment Pin Assignm...

Page 34: ... 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 J41 Speaker cable to J40 Keyboard Lock cable to J34 Turbo LED cable to J42 Turbo switch cable to J39 and J5 IDE Hard Disk Drive LED The DIAG Led is mounted n the motherboard J41 Reset Switch ...

Page 35: ...Key 3 Ground 4 VCC J34 Keyboard Lock Connector J34 is a five pin single inline berg that connects via a cable to the keyboard lock The keyboard lock allows you to lock the keyboard protecting the system from unauthorized use Pin 1 of J34 on the motherboard is labeled The connector and the J34 pinout is shown below See the graphic at the top of the previous page for the J34 location Pin Description...

Page 36: ...42 J42 is shown below See the graphic at the top of page 36 for the J42 location J39 Turbo Switch Connector J39 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 J39 via a connector cable J39 is shown below See the graphic at the top of page ...

Page 37: ...Enterprise IV EISA VLB Motherboard User s Guide 39 ...

Page 38: ...Chapter 3 Installation 40 Step 10 Install Adapter Cards The Enterprise IV EISA VLB motherboard has seven expansion slots numbered SLOT SLOT7 ...

Page 39: ...ers on the edge connecters than ISA adapter cards The EISA expansion slots have two rows of contacts one below the other AN ISA 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 ...

Page 40: ...1 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 A30 SA01 B30 O...

Page 41: ...8 DACK0 C9 MEMR 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...

Page 42: ...d 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 LA 26 23 IRQ ...

Page 43: ... 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 18 5 volts 18 GND 18 D31 18 D15 19 MAXx 19 MREQx VL Bus Cards VL Bus cards u...

Page 44: ...modate VL Bus compatible adapter cards 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 A15 DAT23 B15 DAT22 A16 DAT25 B16 DAT24 A17 GND B17...

Page 45: ... IO A45 47 A05 B45 47 W 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 _ all connectors are properly seated _ the math c...

Page 46: ...r 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 50 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 51 are display...

Page 47: ...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 48: ... 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 49: ...the cache memory 4 5 7 or 10 times the motherboard must be replaced AMIBIOS Displayed Error Messages Error message are displayed as follows ERROR Message Line 1 ERROR Message Line 2 Press the F1 key to continue After the message the system halts The system does not halt if Wait for F1 If Any Error in ADVANCED CMOS SETUP is set to Disabled Error Message Explanation 8042 Gate A20 Error Gate A20 on t...

Page 50: ...e motherboard DMA 1 Error Error in the first DMA channel on the motherboard DMA 2 Error Error in the second DMA channel on the motherboard FDD Controller Failure The BIOS cannot communicate with the floppy controller Check all connections after the system is powered down HDD Controller Failure The BIOS cannot communicate with the hard disk controller Check all connectors after the system is powere...

Page 51: ...e battery may need to be replaced Expansion Board not ready at Slot X Y Z Cannot find the adapter card in Slot X Y or Z Make sure the adapter card is in the correct slot and is seated correctly Fail Safe Timer NMI Inoperational Devices that depend on the fail safe NMI timer will not operate correctly ID information mismatch for Slot X Y Z The ID of the EISA Adapter Card in Slot X Y or Z does not m...

Page 52: ...xxxx Memory failed If the memory location is known it is displayed as xxxxx If not the message is Memory Parity Error I O Card Parity Error at xxxxx An adapter card failed If the address is known it is displayed as xxxxx If not the message is I O Card Parity Error DMA Bus Time out A device drove the bus signal for more than 7 8 µseconds BIOS Configuration Summary Screen AMIBIOS System Configuratio...

Page 53: ... Megatrends Inc 41 0000 004687 00111111 111192 AMIS87 H Enable the Wait for F1 If any Error option in ADVANCED CMOS SETUP then press Ins to display two additional AMIBIOS Identification Strings Step Action 1 When a problem occurs freeze the screen by powering on the system and holding a key down on the keyboard 2 Copy the BIOS ID Strings on a sheet of paper before calling American Megatrends techn...

Page 54: ...56 ...

Page 55: ...inations 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 p...

Page 56: ... disk drives monitor type and the keyboard ADVANCED CMOS SETUP ADVANCED CMOS SETUP discussed in Section 3 beginning on page 67 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 It is discussed in Section 4 beginning on ...

Page 57: ...m 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 61 for more information on default settings Starting AMIBIOS Setup When POST complete...

Page 58: ... 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 with the Po...

Page 59: ...lts 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 is erratic Highlight this option type Y and press Enter to use the Power ...

Page 60: ...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 61: ...TUP 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 to...

Page 62: ... 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 63: ... 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 64: ... 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 65: ...y Error Check Enabled Non Cacheable Area 1 Size 0 KB System Boot Up Num Lock On Non Cacheable Area 1 Start Disabled Floppy Drive Seek At Boot Disabled I O Recovery Select 3 BCLKs System Boot Up Sequence C A Hidden Refresh Enabled System Boot Up CPU Speed High External Cache Memory Enabled Internal Cache Memory Enabled Password Checking Option Setup Video ROM Shadow C000 32K Shadowed Adaptor ROM Sh...

Page 66: ...fter a delay specified by the Typematic Rate Delay the character repeats at the Typematic Rate The defaults are Option BIOS default Power On default Typematic Rate Programming Enabled Disabled Typematic Rate Delay 500 500 Typematic Rate 30 15 Mouse Support Option When enabled AMIBIOS supports a PS 2 type mouse The settings are Enabled or Disabled The BIOS Setup and Power On default is Disabled Abo...

Page 67: ... is Disabled System Boot Up Num Lock If Off is selected the Num Lock key on the keyboard when the system is powered on is turned off so you can use or on both the numeric keypad and the keyboard The settings are On or Off The BIOS Setup and Power On defaults are On Floppy Drive Seek At Boot If enabled a Seek instruction is performed on floppy drive A at system boot time The settings are Enabled or...

Page 68: ... default is Enabled The Power On default is Disabled Internal Cache Memory When this option is enabled AMIBIOS uses the cache memory internal to the 486 microprocessor The settings are Enabled or Disabled The BIOS Setup default is Enabled The Power On default is Disabled Password Checking Option This option enables password checking If Always is chosen a user password prompt appears every time the...

Page 69: ...e contents of video ROM are copied to RAM but cannot be stored in cache memory Disabled the Power On default There is no shadowing or caching or video ROM Cached The contents of video ROM are copied to RAM and can be stored in cache memory You must be reasonably certain that no application will write to video ROM memory area while this option is enabled Adaptor ROM Shadow C800 32K Adaptor ROM Shad...

Page 70: ...ower On default The contents of video ROM are copied to RAM but cannot be stored in cache memory Cached The contents of video ROM are copied to RAM and can be stored in cache memory You must be reasonably certain that no application will write to video ROM memory area while this option is enabled Shadow RAM Write Protection When enabled this option makes sure that Adaptor ROM code that resides in ...

Page 71: ...ctor 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 Service Format Possible VIRUS Continue Y N _ The BIOS Setup and Power On default is Disabled LBD Sampling Point This option specifies the sampling point for the LDEV signal from the local bus target The settings...

Page 72: ... Cacheable Area 1 Start option setting is 512KB the settings are Disabled or 128KB If the Non Cacheable Area 1 Start option setting is any value other than 512KB the settings are 0 KB 64 KB 128 KB 256 KB 512 KB 1 MB 2 MB or 4 MB The BIOS Setup and Power On Default is 0 KB Non Cacheable Area 1 Start This option sets the starting or base address of the non cacheable memory block The settings are Dis...

Page 73: ... type as shown below Frequency Setting 25 MHz DX 3 BCLKs 33 MHz DX 3 BCLKs 50 MHz DX2 5 BCLKs 66 MHz DX2 11 BCLKs Hidden Refresh The settings are Enabled or Disabled If Enabled is chosen the CPU can operate from its internal cache memory or external secondary cache memory during system memory refresh cycles CPU accesses to main system memory on the AT bus are blocked until the memory refresh cycle...

Page 74: ... FIFO These two options enable the First In First Out buffer for the onboard serial ports These options can only be enabled if the device connected to these serial ports supports National Semiconductor 16550 UARTs The settings are Enabled or Disabled The BIOS Setup and Power On defaults for both options is Disabled ...

Page 75: ... Disabled On Board IDE Controller Disabled On Board Serial Port 1 FIFO Disabled On Board Serial Port 2 FIFO Disabled ESC Exit Sel Ctrl Pu Pd Modify F1 Help F2 F3 Color F5 Old Values F6 BIOS Setup Defaults F7 Power On Defaults ADVANCED CHIPSET SETUP Options On Board Serial Port 1 This option enables serial port 1 on the motherboard The settings are Disabled 3F8h or 3E8h The BIOS Setup and Power On ...

Page 76: ... Short Pins 1 2 to select IRQ5 Short Pins 2 3 to select IRQ7 the default Leave J21 OPEN to disable the IRQ for the parallel port On Board Floppy Controller This option enables the floppy controller on the motherboard The settings are Enabled or Disabled The BIOS Setup and Power On defaults are Disabled On Board IDE Controller This option enables the IDE controller on the motherboard The settings a...

Page 77: ...ANCED CMOS SETUP see page 70 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 CM...

Page 78: ... 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 was set the pr...

Page 79: ...or and then performs a low level format of the hard disk drive Page 85 Media Analysis Analyzes each hard disk drive track to determine whether it is usable The track is labeled bad if unusable Page Error Bookmark not defined The hard disk utility error messages are described on page Error Bookmark not defined These routines work on drives that use the MFM RLL ARLL or ESDI data recording techniques...

Page 80: ...or 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 following screen a...

Page 81: ...ata on the hard 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 82: ...elected 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 and press Enter...

Page 83: ...of the hard 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 opt...

Page 84: ...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 stop The main Ha...

Page 85: ...cted FATAL ERROR 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 conne...

Page 86: ...imed 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 was written t...

Page 87: ... is the hottest component 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...

Page 88: ...nsumption 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 IV EISA VLB 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 Conclusio...

Page 89: ...s of power Since this power 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 ov...

Page 90: ...ed 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 the CPU Some ...

Page 91: ...ard EISA configuration files AMI87A1 CFG and AMI87A1 OVL 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 92: ...his 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 ___ Ex...

Page 93: ..._ IRQ12 ___ 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 ______________________________________________________________ ______________________________________________________________ _______________________________________________...

Page 94: ...is 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 ___ Ex...

Page 95: ..._ IRQ12 ___ 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 ______________________________________________________________ ______________________________________________________________ _______________________________________________...

Page 96: ...is 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 ___ Ex...

Page 97: ..._ IRQ12 ___ 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 ______________________________________________________________ ______________________________________________________________ _______________________________________________...

Page 98: ...his 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 ___ E...

Page 99: ...__ IRQ12 ___ 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 ______________________________________________________________ ______________________________________________________________ ______________________________________________...

Page 100: ...his 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 ___ E...

Page 101: ...IRQ11 ___ IRQ12 ___ 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 _________________________________________________________ _________________________________________________________ _________________________________________________...

Page 102: ...licate 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 ___ Syst...

Page 103: ...__ IRQ12 ___ 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 ______________________________________________________________ ______________________________________________________________ ______________________________________________...

Page 104: ...s 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 105: ...__ IRQ12 ___ 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 ______________________________________________________________ ______________________________________________________________ ______________________________________________...

Page 106: ...Appendix C EISA Configuration Worksheets 108 ...

Page 107: ...using a Flash EPROM is that the EPROM chip does not have to be replaced to update the BIOS The end user can actually reprogram the BIOS using a ROM file supplied by American Megatrends There are two methods for programming the Flash EPROM programming from system boot or running the AMIFlash utility Programming from System Boot Using the floppy disk with the new BIOS file you can simply press and h...

Page 108: ...ides on a floppy disk and contains the updated main BIOS code American Megatrends will provide this file when the AMIBIOS for the Series 87 Enterprise IV EISA VLB motherboard must be updated S87P ROM must be present in the root directory of the floppy disk before the onboard Flash EPROM can be reprogrammed The file that has the main BIOS code must be named S87P ROM Programming the Flash EPROM Step...

Page 109: ...IFlash Code begins reprogramming the Flash EPROM 8 Continue programming the Flash EPROM Four beeps when reprogramming has successfully completed 9 AMIFlash does a reset A CPU reset is generated the system reboots 10 Reboot Reboot the system Beep Codes During normal operation the Flash utility beeps to indicate step completion as shown above an error Error beeps are in a coded sequence and have dif...

Page 110: ...e 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 AMIFlash Floppy Disk ...

Page 111: ...IFlash will prompt for the filename Type S87P ROM and press Enter Pressing Esc exits AMIFlash any time before Flash EPROM reprogramming begins General Operation If Flash EPROM is present AMIFlash asks if you want to save the existing BIOS file If you choose to save the BIOS enter the filename where the existing BIOS will be saved ...

Page 112: ... Flash programming starts programming activity is indicated by a rotating character AMIFlash informs you when Flash programming is successful as shown below Press any key to reboot the system Errors During Flash Programming If an error occurs during programming an error messages is displayed and the system halts Turn power off and replace the Flash EPROM with a new programmed Flash EPROM to make t...

Page 113: ...oot Displayed after successful Flash EPROM programming Want to Continue Y N Displayed after an error message Want to Exit Y N Displayed when you press Esc Please Wait Displayed when Flash programming is occurring Put Off System Power Displayed if there is an error during Flash programming Replace the Flash EPROM with a new programmed Flash EPROM No Flash EPROM present Displayed if no Flash EPROM i...

Page 114: ...g is going to start The system is not usable until Flash EPROM programming is completed successfully If an error occurs the existing Flash EPROM must be replaced by a new programmed Flash EPROM The system must not be turned off during programming The system reboots if programming is completed successfully ...

Page 115: ...Enterprise IV EISA VLB Motherboard User s Guide 117 Index ...

Page 116: ...ilure 41 BIOS Beep Codes 41 Error Reporting 40 Fatal Errors 41 Hard Disk Utilities 72 Non Fatal Error Messages 42 Password Support 70 BIOS Setup 48 Board Layout 12 Boot Sector Virus Protection 64 Built in Battery 7 C Drive Error 42 Cables 28 Cache Write Back 64 CMOS Display Type Mismatch 43 CMOS Shutdown Register Read Write Error 41 CMOS System Options Not Set 43 Configuring System 38 Connectors E...

Page 117: ...10 Keyboard lock connector 29 J14 Turbo Switch Connector 30 J16 CPU Type select 14 J17 CPU Select 14 Keyboard connector 27 Media Analysis Utility 77 Motherboard layout 12 Mouse connector 27 Speaker connector 29 STANDARD CMOS SETUP 54 VL Bus slots 2 Floppy Drive 57 Floppy Drive Seek At Boot 60 Hard Disk Drive C and D 55 Hard Disk Format 72 Hard Disk utilities Error messages 78 When to use 73 Heat S...

Page 118: ... 45 Non Cacheable Area 65 Non Cacheable Area 1 Size 65 Non Cacheable Area 1 Start 65 Num Lock 60 On Board Floppy Controller 69 On Board IDE Controller 69 On Board Parallel Port 69 On Board Serial Port 1 68 On Board Serial Port 2 69 P1 Pinout 26 P2 Pinout 26 P3 Pinout 26 Password Check Option 61 Pinouts EISA Adapter Cards 35 ISA Adapter Cards 33 34 Keyboard connector 27 Keyboard Lock connector 29 P...

Page 119: ... Keyboard 57 Monitor 57 Options Main Menu 51 Running Setup 50 Standard CMOS Setup 54 System Boot UP CPU Speed 61 System Boot Up Num Lock 60 System Boot Up Sequence 60 Typematic Rate Delay and Typematic Rate 59 Warning Message 50 Warning Screen 58 Shadow RAM Write Protection 63 SIMMs 16 Installing 17 Part numbers 17 Parameters 18 Specifications 18 Speaker Cable Connector 29 Specifications 4 SRAM Ty...

Page 120: ...y error messages 79 Installation steps 11 Interrupts 8 ISA Card Pinouts 33 34 Keyboard connector pinouts 27 Keyboard Lock connector pinouts 29 Memory configurations 16 Motherboard installation 23 Mouse connector pinouts 27 NMI error messages 45 POST Memory Test 46 Power Connector pinouts 26 Processor types supported 4 Processors supported 19 SIMM part numbers 17 Speaker connector pinouts 29 Steps ...

Page 121: ...Enterprise IV EISA VLB Motherboard User s Guide 123 Index Continued Upgrade Processor 19 VGA adapters 13 Video ROM Shadow C000 32K 62 VL Bus Pinouts 37 38 Warning Message 50 ...

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