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IDE Port Jumpers

IDE Enable/Disable

JP29

Enable on-board VL-Bus IDE port.

1-2

(Default)

Disable on-board VL-Bus IDE port.

2-3

JP22

JP23

JP24

VL-Bus

Clock

IDE Recovery Time

2 - 3

1 - 2

2 - 3

1 - 2

2 - 3

2 - 3

2 - 3

2 - 3

2 - 3

At 33MHz

or less

9T, Low Speed (Default)

7T, Middle Speed

5T, High Speed

2 - 3

1 - 2

2 - 3

2 - 3

1 - 2

1 - 2

1 - 2

2 - 3

2 - 3

At 40MHz

or more

13T, Low Speed

11T, Middle Speed

9T, High Speed

Parallel Port Jumper

Parallel Port

JP30

Select interrupt line IRQ7 for Parallel port.

1-2

(Default)

Select interrupt line IRQ5 for Parallel port.

2-3

Page 12 486MI System Board User's Manual

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Содержание 486MI

Страница 1: ...used or reproduced in any forms or by any means or stored in a database or retrieval system without prior written permission TRADEMARKS Intel is a registered trademark of Intel Corporation IBM is a re...

Страница 2: ...onnector 17 Turbo LED Connector 17 Parallel Port Connector 18 Serial Port 1 2 Connectors 18 Floppy Interface Connector 19 IDE Interface Connector 20 Harddisk Activity LED Connector 20 CHAPTER 3 HARDWA...

Страница 3: ...SYSTEM SPEED 37 SYSTEM SECURITY LOCKING 37 SYSTEM POWER DOWN MODE 37 PASSWORD STATE 38 APPENDIX A AMI BIOS HARD DISK TYPE 39 APPENDIX B MEMORY MAPPING 40 APPENDIX C AT I O ADDRESS MAP 41 APPENDIX D I...

Страница 4: ...ass 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 modu...

Страница 5: ...drives Supports 360KB 720KB 1 2MB 1 44MB densities Floppy Disk Controller can be disabled Peripherals Supports two Serial ports one Parallel port and one Game port Green PC CPU clock slow down and mo...

Страница 6: ...ve proper operation caution should be taken when connecting these components SYSTEM BOARD JUMPERS Jumpers are used to select between various operating modes A jumper switch consists of two three or fo...

Страница 7: ...FIGURE 486MI System Board User s Manual Page 7...

Страница 8: ...N OPEN 1 2 2 3 2 3 1 2 25MHz OPEN SHORT SHORT 1 2 2 3 2 3 1 2 33MHz OPEN SHORT OPEN 1 2 2 3 2 3 1 2 40MHz OPEN OPEN SHORT 2 3 1 2 1 2 2 3 50MHz OPEN OPEN OPEN 2 3 1 2 1 2 2 3 CPU Type Jumpers CPU Type...

Страница 9: ...4 Data Bank 0 U19 U20 U21 U22 Data Bank 1 U23 U24 U25 U26 64KB 8Kx8 8Kx8 8Kx8 128KB 32Kx8 32Kx8 None 256KB 32Kx8 32Kx8 32Kx8 512KB 32Kx8 128Kx8 None VESA Local Bus Jumper Jumper ID2 allows any VL Bus...

Страница 10: ...P20 Normal CMOS Operation 1 2 Default Clear CMOS Data 2 3 Follow these steps to clear CMOS data 1 Turn power OFF 2 Open the system cover and gain access to jumper JP20 3 Change jumper JP20 to 2 3 posi...

Страница 11: ...F 2 Open the system cover and gain access to jumper JP17 3 Change jumper JP17 to 2 3 position 4 Turn power ON and disable External Cache through BIOS Advanced CMOS Setup 5 Reboot the system and run AM...

Страница 12: ...3 1 2 2 3 2 3 2 3 2 3 2 3 At 33MHz or less 9T Low Speed Default 7T Middle Speed 5T High Speed 2 3 1 2 2 3 2 3 1 2 1 2 1 2 2 3 2 3 At 40MHz or more 13T Low Speed 11T Middle Speed 9T High Speed Parallel...

Страница 13: ...low level it can switch other system device to stand by mode for saving power 3 8 No Connection Keyboard P10 General Purpose When this pin is at low level it can switch other system device to stand by...

Страница 14: ...nnectors two of the wires on each connector are black Align the two six wire connectors so that the two black wires on each connector are in the middle as shown below Pin Connector PS2 Connector PS1 1...

Страница 15: ...Fused VDC Power LED and Keyboard Lock Connector The Power LED and Keyboard Lock connector KLOCK is 5 pin keyed BERG strip It is used to connect 5 VDC power to the power indicator LED at the front pan...

Страница 16: ...tion 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 switch located on the fr...

Страница 17: ...eds the ISA expansion bus timing compatibility is still preserved Pin Description 1 Turbo Speed 2 Ground Notes System runs at Turbo speed when pins 1 and 2 are shorted System runs at Slow speed when p...

Страница 18: ...13 SLCT 26 No Connection Serial 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 with a 9 or 25 pin male D subminiature r...

Страница 19: ...n 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 Di...

Страница 20: ...ta 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...

Страница 21: ...s Total Memory SIM1 SIM2 SIM3 SIM4 2MB 512Kx36 4MB 512Kx36 512Kx36 6MB 512Kx36 1Mx36 10MB 512Kx36 1Mx36 1Mx36 10MB 512Kx36 2Mx36 4MB 1Mx36 8MB 1Mx36 1Mx36 12MB 1Mx36 1Mx36 1Mx36 16MB 1Mx36 1Mx36 1Mx36...

Страница 22: ...nkle strap 1 The SIMM module should face to the right with pin 72 next to the power supply connectors 2 Insert the SIMM at a 45 degree angle tilted towards ISA slots 3 Gently push the SIMM to an uprig...

Страница 23: ...puter s cover 5 Choose an unused VL Bus slot 6 Setting the VL Bus card according to its user s manual 7 Holding the card at the center of the top edge gently push straight down with equal pressure at...

Страница 24: ...aker to provide sound capability A 2 position switch with a 2 pin connector for speed function A push button switch with 2 pin connector for reset function One floppy drive 360K or 1 2M or 1 44M Hard...

Страница 25: ...this condition and prompts user to go through the SETUP section This chapter explains how to use the BIOS SETUP program and make the appropriate entries Some of the parameters are already factory pre...

Страница 26: ...and press Enter Modify the system parameters to reflect the options installed in the system 5 Press Esc at anytime to return to the Main Menu 6 In the Main Menu choose WRITE TO CMOS AND EXIT to save...

Страница 27: ...ect type 47 and enter the appropriate values for cylinders heads WPcom LZone and sectors Size is automatically determined by the other entries You can also let the BIOS to determine the drive type by...

Страница 28: ...eck Default is Enabled to test for transmission errors in data read from memory Hard Disk Type 47 RAM Area The BIOS uses this area to store extended information such as user definable drive type 47 Th...

Страница 29: ...he pass word prompt appears Setup If there is a password set the Password prompt only appears if you attempt to enter the BIOS Setup program If there is no set password the Password Checking Option is...

Страница 30: ...up to prevent unauthorized access after an idle period from 1 to 15 minutes This feature is enabled by setting up system Password and selecting number of minutes Cyrix Suspend Feature Default is Disa...

Страница 31: ...not recommended For Green PC operation this clock must be set at 7 16MHz Different than 7 16MHz speed can also be selected by following below table CPU Clock Speed ISA Bus Clock 20MHz 1 2 CLK 10MHz o...

Страница 32: ...detailed description of these connectors CPU and Green PC devices connected to W1 will go in to power saving mode if the keyboard is not used by user for a period of time programmed through this BIOS...

Страница 33: ...y the following message Enter Current Password Enter the current password default is AMI and follow the screen instructions to change the password 4 After you correctly enter the current password the...

Страница 34: ...With Auto Interleave you need not speculate about the value of the interleave factor while entering the parameters for format This function determines the optimum interleave factor for the best disk p...

Страница 35: ...rom the Driver diskette to your current Windows SYSTEM directory for example COPY A IDEDRV 386 C WINDOWS SYSTEM 2 Check the Windows file SYSTEM INI located under Windows directory i e c windows and ma...

Страница 36: ...4 Delete the command line device wdctrl from the 386Enh section if it exists 5 Restart Windows by typing WIN Page 36 486MI System Board User s Manual...

Страница 37: ...the System Password feature is enabled in BIOS Setup the user can invoke this feature at any time by pressing this key sequence This feature is useful for preventing unauthorized access to the system...

Страница 38: ...ntered via keyboard The password feature is enabled through BIOS Setup and the Ctrl Alt hot key sequence is pressed to invoke immediate power down mode Same as above Both the Green PC power savings fe...

Страница 39: ...5 300 732 17 30MB 21 733 7 300 732 17 43MB 22 733 5 300 733 17 30MB 23 306 4 0 336 17 10MB 24 925 7 0 925 17 54MB 25 925 9 65535 925 17 69MB 26 754 7 754 754 17 44MB 27 754 11 65535 754 17 69MB 28 69...

Страница 40: ...FFF 64K I O ROM Not Cached 000E0000 000EFFFF 64K Extended BIOS Not Cached 000F0000 000FFFFF 64K On Board BIOS ROM Cached 00100000 00BFFFFF System Memory RAM Cached 00C00000 00FFFFFF System Memory RAM...

Страница 41: ...Port 2 2B0 2DF Alternate Enhanced Graphic Adapter 2E1 GPIB Adapter 0 2E2 2E3 Data Acquisition Adapter 0 2F8 2FF Serial Port 2 RS 232 C 300 31F Prototype Card 360 363 PC Network Low Address 364 367 Re...

Страница 42: ...pter 2 EE2 EE3 Data Acquisition Adapter 3 1390 1393 Cluster Adapter 3 22E1 GPIB Adapter 1 2390 2393 Cluster Adapter 4 42E1 GPIB Adapter 2 62E1 GPIB Adapter 3 82E1 GPIB Adapter 4 Page 42 486MI System B...

Страница 43: ...rrupts from IRQ8 to IRQ15 IRQ3 Serial Port 2 IRQ4 Serial Port 1 IRQ5 Parallel Port 2 IRQ6 Diskette Controller IRQ7 Parallel Port 1 IRQ8 Real Time Clock IRQ9 Expansion Bus Pin IRQ10 Expansion Bus Pin I...

Страница 44: ...y 5 Amp maximum Ripple Noise 100mV maximum TEMPERATURE RANGE Operating 50o to 104o Fahrenheit 10o to 40o Celsius Non Operating 50o to 104o Fahrenheit 10o to 40o Celsius Shipping 22o to 140o Fahrenheit...

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