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American Megatrends AMI 386SX Preliminary Manual Download Page 1

AMERICAN MEGATRENDS INC.

AMI 386SX

MOTHERBOARD

(Intel Chipset)

PRELIMINARY MANUAL
S10C
05/14/90

American Megatrends, Inc.

Ph. (404) 263-8181

1346 Oakbrook Drive, Suite 120

Norcross, GA  30093

Summary of Contents for AMI 386SX

Page 1: ...AMERICAN MEGATRENDS INC AMI 386SX MOTHERBOARD Intel Chipset PRELIMINARY MANUAL S10C 05 14 90 American Megatrends Inc Ph 404 263 8181 1346 Oakbrook Drive Suite 120 Norcross GA 30093 ...

Page 2: ...elect Switch Setting 1 3 1 3Installing the AMI 386SX Motherboard 1 4 1 4Connecting the AMI 386SX Motherboard 1 5 1 5Installing Input Output Cards 1 9 Section 2 POWERING UP YOUR MOTHERBOARD 2 1Before Power Up Checklist 2 1 2 2Initial Power Up 2 1 2 3Memory Test 2 3 2 4Run System Setup SETUP Utility 2 4 2 5SETUP Screen Display 2 5 ...

Page 3: ...y 2 14 Section 3 SYSTEM OVERVIEW 3 1The Microprocessor 3 2 3 2System Performance 3 3 Section 4 ADVANCED ROM DIAGNOSTICS 4 1 Selecting the various Advanced Diagnostics Options 4 1 4 2 Diagnostics Menu 4 2 4 3 Hard Disk Diagnostics 4 3 4 4 Floppy Diagnostics 4 9 4 5 Keyboard Diagnostics 4 11 4 6 Video Diagnostics ...

Page 4: ...4 7 Miscellaneous Diagnostics 4 12 Section 5 INSTALLING MOTHERBOARD DRAM 5 1 Installing SIMM modules 5 1 Section 6 INSTALLING A 387SX COPROCESSOR 6 1 Installing the 387SX 6 1 Appendix A HARD DISK DRIVE TYPES ...

Page 5: ...ll Please have the following information available 1 Serial Number 2 Rev Number 3 Memory Configuration Type Speed 4 System BIOS reference number Bottom of Opening Screen 5 Input Output cards installed 6 A description of the malfunction and what procedures you have already taken Our number is 1 800 U BUY AMI 1 800 828 9264 or 1 404 263 8181 THANK YOU from AMERICAN MEGATRENDS INCORPORATED 1346 Oakbr...

Page 6: ...hase price of this product at AMI s discretion AMI shall not be liable in tort or contract for any loss or damage direct incidental or consequential Please read enclosed warranty card Important Notice AMI is not responsible for any errors or omissions in writing this manual AMI reserves the right to change modify or append any part or section of this manual at any time TRADEMARKS Intel 286 80286 3...

Page 7: ...AMI 386SX S10C USER MANUAL This manual edited and designed by James C Helman Release date May 14 1990 ...

Page 8: ...PAGE INTENTIONALLY ...

Page 9: ...any damage to the shipping container keep it do not throw it away In the event of damage to the motherboard caused by handling the shipping container is required to file a claim against the carrier NOTE Save the original AMI Motherboard box two pieces of foam and the anti static bag These will be needed if you return the motherboard to the distributor for any reason 2 The motherboard is packaged i...

Page 10: ...ote the direction to slide the switch to turn it OFF or ON Switch 1 will always be in the OFF position it is used for factory testing only Switch 2 is used to set the type of video display adapter card installed in the system The shipped position of this switch in normally OFF position for a MONOCHROME DISPLAY MDA HERC etc Set this switch to ON position if you want to use a COLOR DISPLAY CGA The s...

Page 11: ...w holes on the chassis be careful not to strip the threads 4 Carefully slide the motherboard into the chassis making sure that the stand offs go into the slots provided for them Ensure that the motherboard is level with the chassis The edge of the motherboard should fit into the slots of the chassis mounted plastic clips In case the motherboard is not sitting properly remove it carefully and try a...

Page 12: ...ing power off CAUTION Ensure that the positive terminal normally indicated by a red wire is connected to the pin marked on J5 Pin Assignments 1 6V dc 2 Not used 3 Not used 4 Ground NOTE There is a factory installed Lithium battery holder on your motherboard part number is Duracell DL2016 It is highly recommended you use only one battery configuration J8 and J9 Memory Speed Selection Jumpers 2 3 pi...

Page 13: ...ent 1 Clock speed 2 LED power J17 Factory Testing Jumper 2 pin single in line BERG Do not use for factory testing of certain board functions J18 Turbo Switch Connector 2 pin single in line BERG When the button is pressed the system will switch to hi or lo CPU speed Pin Assignments 1 Ground 2 Mode switch J19 Reset Button Connector 2 pin single in line BERG When the button is pressed the system will...

Page 14: ...andard add on cards to interface to the real world The cards may be any IBM compatible 8 bit or 16 bit Input Output I O card These cards plug into the I O slots provided on the AMI 386SX Information about I O slot usage follows J6 7 J12 13 J15 16 J20 21 J22 23 J24 25 16 bit Input Output Card Slots 62 36 pin I O slot connectors Used for either 16 bit or 8 bit I O cards J27 and J28 8 bit Input Outpu...

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Page 16: ... 7 7 5 7 5 4 7 9 7 11 7 10 7 11 15 5 2 9 8 8 3 7 6 5 5 7 10 15 128 300 300 512 512 NONE 256 NONE NONE NONE NONE NONE 128 NONE 000 ALL 300 NONE 512 300 300 300 ALL ALL NONE 754 NONE 256 NONE 918 NONE NONE 1024 128 NONE 512 128 987 987 820 977 981 512 NONE NONE 305 615 615 940 940 615 511 733 901 820 855 855 319 733 000 663 977 977 1023 732 732 733 336 925 925 754 754 699 823 918 1024 1024 1024 612 ...

Page 17: ...46 000 00 000 000 00 MB ...

Page 18: ...ress ESC to bypass MEMORY test C American Megatrends Inc DISX K The following conditions may exist at power up and the first display screen may not be same 1 The Video Display Adapter used in the system is other than the standard Monochrome or Color Graphics board In this case with some display adapter cards the Video Display ROM will place a message on the screen 2 The Video Display Monitor is no...

Page 19: ...ry test is not performed when a soft reboot is executed through the keyboard or a software program After testing the memory the BIOS continues to initialize the peripherals using the SETUP information stored in the SYSTEM CMOS RAM The following errors do not cause a RUN SETUP UTILITY request a CH 2 timer error b Keyboard error c KB Interface error d INTR 2 error e Display switch not proper f Keybo...

Page 20: ... allow you to select any of the following options EXIT FOR BOOT RUN CMOS SETUP RUN DIAGNOSTICS FOR ANY OF THE ERRORS MENTIONED IT IS RECOMMENDED THAT YOU ALWAYS CHOOSE THE OPTION TO RUN CMOS SETUP BEFORE ANY OTHER OPTION OTHERWISE THE SYSTEM MAY BEHAVE UNPREDICTABLY If you choose the option EXIT FOR BOOT the system will attempt boot from any bootable e g FLOPPY HARD DISK device if the CMOS SETUP w...

Page 21: ...t Right Up and Down arrow keys are used to go through the system options ESC key is used to quit the system SETUP The system option which you will be changing at any given time will also be in reverse video to help you know what information you are modifying As an example when the SETUP screen initially comes up the MONTH in the DATE line will be in reverse video This means that you may now modify...

Page 22: ...d Right arrow keys Floppy drive A Setup The screen displays Floppy drive A Not Installed The help window displays Options 360 KB 5 1 2 MB 5 720 KB 3 1 44 MB 3 Not Installed To change drive A use the PgUp and PgDn keys Floppy drive B Setup The screen displays Floppy drive B Not Installed The help window displays Options 360 KB 5 1 2 MB 5 720 KB 3 1 44 MB 3 Not Installed To change drive B use the Pg...

Page 23: ...displays FIXED type 01 46 USER defined type 47 For type 47 Enter Cyln Head WPcom LZone Sec WPcom is 0 for ALL 65535 for NONE To change disk D use the same procedure as disk C again all disk information will be displayed for each type disk Primary display Setup The screen displays Primary display Not Installed The help window displays Options Monochrome Color 40x25 VGA or EGA Color 80x25 Not Instal...

Page 24: ... are executed from the ROM To beef up the performance the video drivers in ROM are copied to faster motherboard memory and executed from there This concept is called Shadow RAM To change the Video BIOS shadow option use the PgUp and PgDn keys Scratch RAM option The screen displays Scratch RAM option 1 The help window displays if required BIOS will use 256 bytes of RAM 1 Using BIOS stack area at 00...

Page 25: ...splays Options 0KB 128KB 256KB 384KB To change the total RAM relocated option use the PgUp and PgDn keys Exiting Setup After you review all information on the Setup display and are sure it is correct press the ESC key The help window will display the following message Write data into CMOS and exit Y N You must press ENTER after you select Y or N If you enter N or n the cursor will jump back to the...

Page 26: ...r display monitor If the error occurs before the display device is initialized the system reports the error by giving a number of short beeps Some errors are considered to be fatal in which case the system halts after reporting the error either through audio speaker or video display screen Some errors are considered to be non fatal in which case the BIOS reports the error and the process continues...

Page 27: ... not set 18 CMOS display type mismatch 19 C drive failure 2 8 User Selectable Options Through Keyboard Key This section describes USER options available in the SYSTEM BIOS through keyboard key Key Sequence BIOS Function ESC Press this key to bypass system memory test DEL Press this key to run System SETUP program INS With some EGA VGA card with video RAM shadow feature enabled there may be a probl...

Page 28: ...high speed of operation 25MHz with cache memory enabled for maximum system throughput The cursor changes to a block to indicate the change This key sequence allows the system to jump to low speed of operation 8MHz Double line cursor indicates the switching SHIFT This key sequence enables the external cache memory to maximize system throughput at high speed of operation SHIFT This key sequence disa...

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Page 30: ...e processor clock frequency to 8MHz 8MHz I O bus timing compatibility Speaker attachment CMOS Complementary Metal Oxide Semiconductor RAM to maintain system configuration Real Time clock Optional battery backup for CMOS configuration table and Real Time Clock Keyboard attachment 8 5 by 13 inch board Extended XT form factor 8 input output I O slots 6 62 36 pin 16 bit card edge sockets 2 62 pin 8 bi...

Page 31: ...hroughout the rest of this manual The panel mounted turbo switch determines the initial speed after power on The speed can be switched at any time while the machine is operating If installed the 80387SX Numeric processor runs at the processor clock frequency Data Access Bus Width The 80386SX microprocessor supports two types of accesses Memory and Input Output Each type of access can be 16 or 8 bi...

Page 32: ... slot Also any I O slot 8 bit memory in that space will be automatically disabled DRAM access In 80386SX a zero wait state bus cycle requires two clock cycles The required number of clock cycles increases by one with every wait state introduced in the access Most processor accesses are memory read operations To speed up the memory reads the AMI 386SX incorporates a page interleave scheme This impr...

Page 33: ... 3 Mode F4 F1 W01 W02 Max Pages Active 4 1 4 4 Wait States Page Hit Bank Hit 0 0 1 2 Bank Miss 0 NA 0 0 Page Miss Bank Hit 2 2 2 3 Bank Miss 2 1 2 3 New RAS 1 1 1 2 DRAM Speed ns 100 100 100 120 Type Page Page DRAM DRAM Mode Mode Table 3 1 Wait States for DRAM Access ...

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Page 35: ...EL key on the keyboard when you see the following message at system startup Press DEL if you want to run SETUP or DIAGS The display gives the following message after the BIOS initializes EXIT FOR BOOT RUN CMOS SETUP RUN DIAGNOSTICS Move the bar with the up or down cursor keys to highlight RUN DIAGNOSTICS then press ENTER 4 2 Diagnostics Menu Note the following in the Diagnostics Opening Menu The G...

Page 36: ... Hard Disk Floppy Disk Drive Keyboard Video Miscellaneous 4 3 Hard Disk Diagnostics Using Hard Disk Diagnostics Options The Hard Disk options discussed below fall in two categories Destructive Operation The data on the Hard Disk is lost Non destructive Operation The data on the Hard Disk is undisturbed The following list gives the various Hard Disk Options the category they fall into Hard Disk For...

Page 37: ...pe is the SETUP value set during the CMOS setup However if the drive was not set during CMOS Setup this value is defaulted to 1 and the user has an option of setting the drive to be one among the 46 standard Disk drive types Note that all the information about the drive unfolds when the disk drive type is being chosen Appendix A also has a listing If the disk drive type does not fall within the 46...

Page 38: ...ntries are correct press Y or press N to go over all the entries again The default answer is N Warning For each destructive operation you get a WARNING message You could proceed with the operation if you are absolutely sure about the information you have entered up to this point and you really want to proceed with the operation Activity Screen While performing any operation BIOS displays a small w...

Page 39: ...a destructive operation You will loose all the data stored on your hard disk If you want to retain the data on a used hard disk after this operation is performed please make sure that you have taken a complete backup of your hard disk This is the most important operation for your hard disk drives This diagnostics function does a series of tests on your hard disks to find out the bad patches on the...

Page 40: ...rive No Start Track No End Track No As in the case of hard disk the list below gives the effect of each of the diskette tests Diskette Format Destructive Speed Test Non Destructive Random R W Test Destructive Sequential R W Test Destructive Disk Change Line Test Non Destructive Diskette Format WARNING This test will erase all data on the disk under test Be sure you have saved the data or are using...

Page 41: ...tted before performing this test Sequential Read Write Test WARNING This test will erase all data on the disk under test Be sure you have saved the data or are using a blank disk This test performs a Sequential read write operation and checks the sequential seek read write capability of the drive Ensure that the diskette is formatted before performing this test Disk Change Line Test This test chec...

Page 42: ...Display Test Checks the 80 x 25 character set of the display adapter If you have a color display card installed you will have the following additional diagnostics functions 40 x 25 Display test 320 x 200 Graphics test 640 x 200 Graphics test Page selection test Color test The Video diagnostics functions do not require any inputs from the user However the test results are displayed on the screen 4 ...

Page 43: ...st exercises the port for different Baud Rates 7 Bit 8 Bit Odd Even Parity The results of the test are displayed on the screen Printer Port Test This test writes a pattern on the Printer the results are observed on the Printer ...

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Page 45: ...contain two SIMM card s and be filled as follows Bank 0 or bank 0 and bank 1 or all banks No other combination is allowed Table 5 1 shows memory configuration SIMM BANK0 BANK1 BANK2 BANK3 MEMORY TYPE SIZE 256Kx9XXXXX 512KB XXXXX XXXXX 1MB XXXXX XXXXX XXXXX XXXXX 2MB 1Mx9XXXXX 2MB XXXXX XXXXX 4MB XXXXX XXXXX XXXXX XXXXX 8MB You should use only one type of memory module on the motherboard Refer to T...

Page 46: ...ur bottom right Please Note that the banks are split this is to say that each pair of sockets contain either a pair of bank HI or bank LO sockets Refer to Figure 5 1 With the component side of the SIMM facing away from you firmly push the card into the socket When properly inserted the SIMM card will click into place as the latching pins engage Use Figure 5 2 as reference to install the SIMM cards...

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Page 49: ...ution to avoid electro static discharge hazard by following the procedure in section 1 Turn on the system Go to the set up screen Refer to section 2 for details on the set up screen In the upper right corner box you should get the following message Numeric Processor Installed If this message is indeed displayed the system has detected the 80387SX Coprocessor and you may assume that the installatio...

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Page 51: ...tting 1 2 1 2 2 3 2 3 Mode F4 F1 W01 W02 Max Pages Active 4 1 4 4 Wait States Page Hit Bank Hit 0 0 1 2 Bank Miss 0 NA 0 0 Page Miss Bank Hit 2 2 2 3 Bank Miss 2 1 2 3 New RAS 1 1 1 2 DRAM Speed ns 100 100 100 120 Type Page Page DRAM DRAM Mode Mode ...

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