Intel 486MIS User manual

PREFACE
Thank you for purchasing the 486MIS system board. This document
gives an aid to the configuration and installation of this system board.
The information in this document is subject to change ithout notice.
This document contains information protected by copyright. All rights are
reserved. No part of this document may be used or reproduced in any
forms or by any means, or stored in a database or retrieval system,
ithout prior ritten permission.
TRADEMARKS
Intel is a registered trademark of Intel Corporation.
IBM is a registered trademark of International Business Machines
Corporation.
Microsoft is a registered trademark of Microsoft Corporation.
VESA is a registered trademark of Video Electronics Standard
Association.
All other trademarks used in this manual are the property of their
respective o ners.
486MIS System Board User's Manual Page 1

TABLE OF CONTENTS
CHAPTER 1: INTRODUCTION 4
CHAPTER 2: JUMPERS & CONNECTORS 6
SYSTEM BOARD JUMPERS 6
CPU External Cl ck Jumpers 8
CPU Type Jumpers 8
Cache Size Jumpers 9
VESA L cal Bus Jumper 9
Clear Passw rd Jumper 10
Display Type Jumper 10
FLASH BIOS Jumper 11
SCSI P rt Jumper Bl ck W1 11
IDE P rt Jumpers 12
Parallel P rt Jumper 12
SYSTEM BOARD CONNECTORS 13
P wer Supply C nnect rs 13
Keyb ard C nnect r 14
P wer LED and Keyb ard L ck C nnect r 14
Speaker C nnect r 15
Reset C nnect r 15
Turb Switch C nnect r 16
Turb LED C nnect r 16
Parallel P rt C nnect r 17
Serial P rt 1 & 2 C nnect rs 17
Fl ppy Interface C nnect r 18
IDE Interface C nnect r 19
Harddisk Activity LED C nnect r 19
SCSI Interface C nnect r 20
CHAPTER 3: HARDWARE INSTALLATION 21
THE DRAM SIMMs 21
Installing DRAM SIMMs 22
INSTALLING A VL-BUS CARD 23
EQUIPMENT REQUIRED 24
SCSI / IDE SETUP 25
SCSI ID Setup 25
SCSI Device Terminati n 25
SCSI Default Setting 25
SCSI/IDE Dual Operati n 25
CHAPTER 4: BIOS SETUP 27
ENTERING SETUP 27
STANDARD CMOS SETUP 29
ADVANCED CMOS SETUP 30
AUTO CONFIGURATION - BIOS DEFAULTS 33
AUTO CONFIGURATION - POWER-ON DEFAULTS 33
CHANGE PASSWORD 34
Page 2 486MIS System Board User's Manual

AUTO DETECT HARD DISK 35
HARD DISK UTILITY 35
WRITE TO CMOS AND EXIT 35
DO NOT WRITE TO CMOS AND EXIT 35
CHAPTER 5: DOS/WINDOWS DRIVERS 36
DOS/WINDOWS DRIVERS QUICK INSTALLATION 36
ASPI2DOS ASPI MANAGER 37
aspi2d s C mmand Line Opti ns 37
DOS/WINDOWS DRIVERS FORMATTING UTILITIES 41
L w-Level F rmatting with scsifmt 41
Partiti ning & High-Level F rmatting with afdisk 42
Viewing Device Inf rmati n with sh wscsi 44
Playing Audi CDs with cdplayer 46
CHAPTER 6: OS/2 v2.1 DRIVERS 49
INSTALLATION 49
COMMAND LINE USAGE 50
CHAPTER 7: NOVELL NETWARE 3.1X, 4.0X 51
INSTALLATION 51
APPENDIX A: KEYBOARD SPEED SWITCH 54
APPENDIX B: AMI BIOS HARD DISK TYPE 55
APPENDIX C: MEMORY MAPPING 56
APPENDIX D: AT I/O ADDRESS MAP 57
APPENDIX E: INTERRUPT ASSIGNMENTS 59
APPENDIX F: SPECIFICATION 60
486MIS System Board User's Manual Page 3

CHAPTER 1: INTRODUCTION
The 486MIS system board adds to our 486 product line high integration
and cost effective solution ithout compromising performance and
quality. With top speed at 50MHz and integrated 64K/128K/256K Write-
Back cache, the 486MIS dramatically boosts system throughput for even
the most demanding applications. The 486MIS offers features and
functionality exceeding any other system board in its class, including:
CPU:
·Intel i486DX, i486DX2, i486SX, i487SX, P24T, and Overdrives.
Cache Memory:
·Supports 64K/128K/256K/512K cache memory.
Main Memory:
·Supports 512Kx36, 1Mx36, 2Mx36, 4Mx36, and 8Mx36 72-pin SIMM
modules.
·Up to 64 MBytes on-board memory.
S ots:
·T o 32-bit VESA Local Bus (VL-Bus) slots.
·Six 16-bit ISA bus slots.
On-Board Battery:
·Use Dallas compatible DS1287 Real-Time-Clock and Battery ith
over 10 years of operation in the absence of po er.
SCSI Port:
·32-bit VL-Bus interface ith 128-byte data buffer to increase
performance.
·Compatible ith Adaptec 1510/1520/1522 SCSI-2 adapters.
Page 4 486MIS System Board User's Manual

·Supports Processor Programmed I/O.
·Multitasking ASPI manager for DOS.
·On-board BIOS supports boot capability, and up to t o hard disk
drives under DOS ithout a soft are driver.
·Supports ide range of both synchronous and asynchronous
devices: disk, Tape, CD-ROM, WORM, DAT, and other SCSI
peripherals.
IDE Port:
·Turbo/Normal selections for fast or slo IDE hard drives.
·Plug and play, replaces any non-intelligent IDE controller ithout
reformatting the disk drives.
·Soft are drivers are not required for all operating systems.
F oppy Disk Contro er:
·Fully IBM register set compatible.
·Supports up to t o 3.5-inch or 5.25-inch floppy disk drives.
·Supports 360KB / 720KB / 1.2MB / 1.44MB densities.
·Floppy Disk Controller can be disabled.
Periphera s:
·Supports t o Serial ports and one Parallel port.
486MIS System Board User's Manual Page 5

CHAPTER 2: JUMPERS & CONNECTORS
When working with the 486MIS,
it is extreme y important that
you avoid static e ectricity.
A ways ground yourse f by
wearing a wrist or ank e strap.
Figures 1 on the next page sho s the component layout of the 486MIS
system board ith locations of the system board jumpers and
connectors. Note that most jumpers and connectors on the system board
are labeled ith proper names ith pin 1 marked as '1'. To avoid
damaging the board and to have proper operation caution should be
taken hen connecting these components.
SYSTEM BOARD JUMPERS
Jumpers are used to select bet een various operating modes. A jumper
s itch consists of t o, three, or four gold pins projecting from the system
board. Placing the plastic jumper cap over t o pins connects those pins
and makes a particular selection. Using the cap to cover t o pins in this
ay is referred to as shorting those pins. If the cap is not placed on any
pins at all, this is referred to as leaving the pins open.
Note: When you open a jumper, leave the plastic jumper cap attached
to one of the pins so you don't lose it.
Page 6 486MIS System Board User's Manual

FIGURE
486MIS System Board User's Manual Page 7

CPU Externa C ock Jumpers
If you are installing an i486DX, or i486SX the internal CPU clock speed is
the same as the external CPU clock speed. This is different for i486DX2
CPU here the external speed is one-half of the internal speed. For
example, a 486DX2-66 has an external clock speed of 33MHz.
CPU Externa
C ock Speed
JP3 JP4 JP5 ID3
20MHz OPEN SHORT SHORT 1-2
25MHz SHORT OPEN SHORT 1-2
33MHz SHORT SHORT OPEN 1-2
40MHz OPEN OPEN SHORT 2-3
50MHz OPEN SHORT OPEN 2-3
CPU Type Jumpers
CPU Type JP1 JP2 JP18
486DX, 486DX2 1-2 1-2, 3-4 1-2
487SX, ODP486SX 2-3 1-2, 3-4 1-2
486SX OPEN 2-3 1-2
Cyrix 486DLC OPEN 2-3 2-3
Care should be taken hen installing the CPU into the Pin Grid Array
(PGA) socket on the system board. Make certain that pin 1 of the CPU
chip is correctly aligned ith pin 1 of CPU socket. The location of pin 1
on the CPU is denoted by a small notch.
Page 8 486MIS System Board User's Manual

Cache Size Jumpers
The system board supports 64KB/ 128KB/ 256KB/ 512KB of cache
memory.
Cache Size Jumper Selecti n
Cache
Size
JP7 JP8 JP9 JP10 JP11 JP12 JP13 JP14 JP15
64KB 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 2-3
128KB 1-2 1-2 2-3 2-3 2-3 1-2 1-2 1-2 1-2
256KB 2-3 1-2 2-3 2-3 2-3 2-3 2-3 1-2 2-3
512KB 2-3 2-3 2-3 2-3 2-3 1-2 2-3 2-3 1-2
Cache Size and SRAM L cati ns
Cache
Size
Tag RAM
U15
Data Bank 0
U20,U21,
U22,U23
Data Bank 1
U24, U25,
U26, U27
64KB 8Kx8 8Kx8 8Kx8
128KB 32Kx8 32Kx8 None
256KB 32Kx8 32Kx8 32Kx8
512KB 32Kx8 128Kx8 None
VESA Loca Bus Jumper
Jumper ID2 allo s any VL-Bus adapter to identify the speed of the
system board.
High Speed Write ID2
System board runs zero ait state rite
transfer. Some VL-Bus adapters may not
be able to run this mode.
1-2
System board runs one ait state rite
transfer. All VL-Bus adapters can operate
in this mode.
2-3
(Default)
486MIS System Board User's Manual Page 9

C ear Password Jumper
Jumper JP32 is used to clear the system pass ord if user ere to forget
it.
Function JP32
Normal Pass ord Operation OPEN
(Default)
BIOS performs infinite loop test and clears
system pass ord
SHORT
Follo these steps to clear system pass ord:
1. Turn po er OFF.
2. Open the system cover and gain access to jumper JP32 and W1.
3. Short jumper JP32 and disable SCSI BIOS through jumper block W1
as sho n belo :
¢¢¢¢¢
¢¢¢¢¢
I1 I2 B1 B2 E
4. Turn po er ON.
5. Wait for the system to finish one self-test loop, then turn po er OFF
again.
6. Open jumper JP32 and re-enable SCSI BIOS through W1.
7. Replace and secure the system cover.
8. Turn po er ON, pass ord data should be cleared.
Disp ay Type Jumper
Disp ay Type JP16
Video display is VGA, EGA, or
Monochrome.
OPEN
(Default)
Video display is CGA. SHORT
FLASH BIOS Jumper
Page 10 486MIS System Board User's Manual

FLASH BIOS Contro JP28
Disable FLASH (optional) programming.
This is normal operation.
1-2
(Default)
Enable FLASH BIOS programming.
Contents of system board BIOS can be re-
programmed.
2-3
SCSI Port Jumper B ock W1
Default setting of jumper block W1 is sho n belo ith shading areas
represent jumper caps:
¢¢¢¢¢
¢¢¢¢¢
I1 I2 B1 B2 E
I1, I2: Use these t o pin pairs to select interrupt channel. To boot from
DOS, IRQ11 must be selected.
¢ ¢ ¢ ¢
IRQ11 = ¢ ¢ IRQ10 = ¢ ¢
I1 I2 I1 I2
B1, B2: Use these t o pin pairs to select SCSI BIOS segment location.
Recommended default address is DC000.
¢ ¢ ¢ ¢
DC000 = ¢ ¢ D8000 = ¢ ¢
B1 B2 B1 B2
¢ ¢ ¢ ¢
Disab e = ¢ ¢ Disab e = ¢ ¢
B1 B2 B1 B2
E: Use this pin pairs to disable or enable SCSI port.
¢ ¢
Enab e = ¢Disab e = ¢
E E
486MIS System Board User's Manual Page 11

IDE Port Jumpers
IDE Enab e/Disab e JP17
Enable on-board VL-Bus IDE port. OPEN
(Default)
Disable on-board VL-Bus IDE port. SHORT
IDE Recovery Time JP29 JP30
300-nanosecond (Default) SHORT SHORT
(Default)
240-nanosecond OPEN SHORT
180-nanosecond SHORT OPEN
120-nanosecond OPEN OPEN
Para e Port Jumper
Para e Port JP22
Select interrupt line IRQ7 for Parallel port. 1-2
(Default)
Select interrupt line IRQ5 for Parallel port. 2-3
Page 12 486MIS System Board User's Manual

SYSTEM BOARD CONNECTORS
Power Supp y Connectors
The t o Po er Supply connectors are 6-pin AT standard po er
connectors. Most po er supplies have t o six- ire connectors, t o of
the ires on each connector are black. Align the t o six- ire connectors
so that the t o black ires on each connector are in the middle as sho n
belo .
Pin Connector PS2 Connector PS1
1 Po er Good Ground
2 +5 VDC Ground
3 +12 VDC -5 VDC
4 -12 VDC +5 VDC
5 Ground +5 VDC
6 Ground +5 VDC
486MIS System Board User's Manual Page 13

Keyboard Connector
The keyboard connector is a 5-pin, circular-type DIN socket. It is used to
connect the system board keyboard interface to any standard AT-
compatible keyboard (84 or 101 -key type keyboards). The pin
assignments are listed belo :
Pin Description
1 Keyboard Clock Signal
2 Keyboard Data Signal
3 Not Used
4 Ground
5 +5V Fused VDC
Power LED and Keyboard Lock Connector
The Po er LED and Keyboard Lock connector (KLOCK) is 5-pin keyed
BERG strip. It is used to connect +5 VDC po er to the po er indicator
LED at the front panel and connect security keyboard lock to the
keyboard controller. This allo s you to s itch off the keyboard and so
provide limited security against casual intruders. The pin assignments
are indicated belo :
Pin Description
1 LED Po er
2 Key (No Connection)
3 Ground
4 Keyboard Lock
5 Ground
Page 14 486MIS System Board User's Manual

Speaker Connector
The Speaker connector (SPKR) is a 4-pin keyed BERG strip. It is used
to connect an external 2-inch, 8-ohm speaker to the system board to
provide sound capability. The pin assignments are defined belo :
Pin Description
1 Speaker Data Out
2 Key (No Connection)
3 Ground
4 +5 VDC
Reset Connector
The system RESET connector (RESET) is a 2-pin BERG strip. It is used
to connect the push button reset s itch located on the front panel to the
system board. System reset can be done by shorting pin 1 to pin 2 ith
the same effect as turning the po er off and then on again.
Pin Description
1 Reset Input
2 Ground
486MIS System Board User's Manual Page 15

Turbo Switch Connector
The Turbo s itch (TURBO) is a 2-pin BERG strip. It is used to connect
the front panel 2-position push s itch to the system board speed
s itching circuitry. In Turbo speed, the cache memory is enabled and full
speed of 32-bit memory transfer is utilized. In non-turbo speed, the
cache memory is disabled. In both speeds, the ISA expansion bus timing
compatibility is still preserved.
Pin Description
1 Turbo Speed
2 Ground
Notes:
- System runs at Turbo speed hen pins 1 and 2 are shorted.
- System runs at Slo speed hen pins 1 and 2 are open.
Turbo LED Connector
The Turbo LED connector, marked as 'TB/LED', is a 2-pin BERG strip. It
is used to connect a CPU operating frequency indicator LED from the
front panel to the system board. The pin assignments are indicated
belo :
Pin Description
1 LED Cathode
2 LED Anode
Page 16 486MIS System Board User's Manual

Para e Port Connector
The on-board parallel port connector (PARALL) is a 2x13-pin male
header connector. The pin assignment is sho n belo :
Pin Description Pin Description
1 -STROBE 14 -AUTO FEED XT
2 Data Bit 0 15 -ERROR
3 Data Bit 1 16 -INIT
4 Data Bit 2 17 -SLCT IN
5 Data Bit 3 18 Ground
6 Data Bit 4 19 Ground
7 Data Bit 5 20 Ground
8 Data Bit 6 21 Ground
9 Data Bit 7 22 Ground
10 -ACK 23 Ground
11 -BUSY 24 Ground
12 PE 25 Ground
13 SLCT 26 No Connection
Seria Port 1 & 2 Connectors
The serial port 1 and 2 connectors are the 2x5-pin male headers COM1
and COM2. Users should use a flex cable ith a 9 or 25 -pin male D-
subminiature receptacle at one end and a 2x5-pin female header at the
other end to provide RS-232 serial interface. The pin assignment for
COM1/COM2 is defined belo :
Pi
n
Description Pi
n
Description
1 Carrier Detect (RLSD) 6 Receive Data (RXD)
2 Transmit Data (TXD) 7 Data Terminal Ready (DTR)
3 Signal Ground 8 Data Set Ready (DSR)
4 Request To Send (RTS) 9 Clear To Send (CTS)
5 Ring Indicator (RI) 10 No Connection
486MIS System Board User's Manual Page 17

F oppy Interface Connector
The on-board Floppy Interface connector (FLOPPY) is a 2x17-pin male
header. This interface supports t o 5.25" or 3.5" floppy drives in any
combination and also can be disabled if no floppy drives are present on
the system.
Pin Description Pin Description
2 RPM 1 Ground
4 No Connection 3 Ground
6 No Connection 5 Ground
8 Index 7 Ground
10 Motor 1 9 Ground
12 Drive 2 11 Ground
14 Drive 1 13 Ground
16 Motor 2 15 Ground
18 Direction 17 Ground
20 Step 19 Ground
22 Write Data 21 Ground
24 Write Enable 23 Ground
26 Track0 25 Ground
28 Write Protect 27 Ground
30 Read Data 29 Ground
32 Head Select 31 Ground
34 Disk Change 33 Ground
Page 18 486MIS System Board User's Manual

IDE Interface Connector
The on-board IDE Interface connector (IDE) is a 2x20-pin male header.
This interface supports up to t o IDE hard disk drives on the system.
This interface can also be disabled in the event that no hard drive is
present or a separate hard drive controller is installed on the system.
Pin Description Pin Description
2 Ground 1 IDE Reset/
4 Data 8 3 Data 7
6 Data 9 5 Data 6
8 Data 10 7 Data 5
10 Data 11 9 Data 4
12 Data 12 11 Data 3
14 Data 13 13 Data 2
16 Data 14 15 Data 1
18 Data 15 17 Data 0
20 No Connection 19 Ground
22 Ground 21 No Connection
24 Ground 23 I/O Write/
26 Ground 25 I/O Read/
28 ALE 27 No Connection
30 Ground 29 No Connection
32 IOCS16/ 31 IDE IRQ 14
34 No Connection 33 Address A1
36 Address A2 35 Address A0
38 IDE Chip Select 1/ 37 IDE Chip Select 0/
40 Ground 39 IDE Active/
Harddisk Activity LED Connector
The hard disk activity LED connector (HDLED) is a 4-pin keyed BERG
strip. It is used to connect to front panel hard disk LED.
Pin Description
1 LED Anode (+)
2 LED Cathode (-)
3 LED Cathode (-)
4 LED Anode (+)
486MIS System Board User's Manual Page 19

SCSI Interface Connector
The on-board SCSI Interface connector (SCSI) is a 2x25-pin male
header. This interface can be disabled in the event that no hard drive is
present or a separate hard drive controller is installed on the system.
Pin Description Pin Description
2 Data 0 1 Ground
4 Data 1 3 Ground
6 Data 2 5 Ground
8 Data 3 7 Ground
10 Data 4 9 Ground
12 Data 5 11 Ground
14 Data 6 13 Ground
16 Data 7 15 Ground
18 CDP# 17 Ground
20 Ground 19 Ground
22 Ground 21 Ground
24 Ground 23 Ground
26 SCSI Termination
Current
25 No Connection
28 Ground 27 Ground
30 Ground 29 Ground
32 ATN# 31 Ground
34 Ground 33 Ground
36 BUSY# 35 Ground
38 ACK# 37 Ground
40 RST# 39 Ground
42 MSG# 41 Ground
44 SEL# 43 Ground
46 C/D# 45 Ground
48 REQ# 47 Ground
50 I/O# 49 No Connection
Page 20 486MIS System Board User's Manual