AOpen AP41 User Manual
  1. Manuals
  2. Brands
  3. AOpen Manuals
  4. Computer Hardware
  5. AP41
  6. User manual
AOpen AP41 User Manual

AOpen AP41 User Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
AP41
User's Guide

Advertisement

Table of Contents
loading

Related Manuals for AOpen AP41

Summary of Contents for AOpen AP41

  • Page 1 AP41 User’s Guide...
  • Page 2 Copyright Copyright Ó 1995 by this company. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, manual or otherwise, without the prior written permission of this company.
  • Page 3 Disclaimer This company makes no representations or warranties, either expressed or implied, with respect to the contents hereof and specifically disclaims any warranties, merchantability or fitness for any particular purpose. Any software described in this manual is sold or licensed "as is". Should the programs prove defective following their purchase, the buyer (and not this company, its distributor, or its dealer) assumes the entire cost of all necessary servicing, repair, and any incidental or consequential damages resulting from any defect in...
  • Page 4 Copyright Other brand and product names are trademarks and/or registered trademarks of their respective holders.
  • Page 5 FCC Statement FCC Class B Radio Frequency Interference Statement Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
  • Page 6 About this Manual Purpose and Scope This manual tells how to install and configure the system board. Organization This manual consists of three chapters and two apendices: Chapter 1, Features, covers the specifications, layout, and components of the system board. Chapter 2, Hardware Setup, tells how to set the jumpers, upgrade the CPU and the system memory, install the system board and add expansion cards.
  • Page 7 About this Manual Conventions The following conventions are used in this manual: Text entered by user, Represent text input by the user, default settings default settings recommended selections Denotes actual messages that appear message displayed on screen Represent the actual keys that you , etc have to press on the keyboard.

  • Page 8: Table Of Contents

    Table of Contents Features Specifications............1-2 Board Layout............1-3 System Board Parts..........1-4 Microprocessor..........1-4 ASICs 1-4 AMI BIOS............1-4 Expansion Slots..........1-5 DRAM Sockets..........1-5 Two-Channel PCI Mode 4 IDE....1-5 Super I/O Controller........1-6 Keyboard Connector........1-6 SRAM 1-6 Power Management........1-6 Hardware Setup CPU Options............2-1 5V CPU Options..........2-1 3.45 V CPU Options........2-2 ESD Precautions..........2-2 Installing a Microprocessor........2-3...
  • Page 9 Table of Contents Changing the CPU Type......2-7 Setting the Oscillator Frequency....2-14 Setting the Flash ROM Type....2-14 Selecting the ECP DMA Channel.....2-15 Enabling the FDC and Super I/O Chip..2-15 Selecting the Cache Size......2-16 Clearing the CMOS........2-18 Memory Configuration........2-18 Installing a SIMM........2-19 Removing a SIMM........2-20 Connectors............2-21 Multifunction Connector......2-21...
  • Page 10 Table of Contents Date/Time............3-2 Floppy Drives A and B........3-3 Hard Disk Drives.........3-4 Advanced CMOS Setup........3-5 Typematic Rate (Chars./Sec.)....3-7 System Keyboard........3-7 Primary Display...........3-7 Above 1 MB Memory Test......3-8 Memory Test Tick Sound......3-8 Hit “Del” Message Display......3-8 Extended BIOS RAM Area......3-8 Wait for F1 If Any Error.......3-8 System Boot-up Num Lock......3-9 Numeric Processor Test......3-9 Floppy Drive Seek at Boot......3-9...
  • Page 11 Table of Contents Video Shadow...........3-12 Main BIOS Cacheable......3-12 Cacheable C800, D000, D800, 32 K..3-12 Video Shadow Cacheable......3-13 Secondary IDE Drives Present....3-13 Primary 1st IDE Block Mode.....3-13 Primary 2nd IDE Block Mode....3-13 Secondary 1st IDE Block Mode....3-14 Secondary 2nd IDE Block Mode....3-14 Chipset Setup Mode.........3-15 Chipset Features Setup........3-15 Memory Speed (DRAM)......3-17...
  • Page 12 Table of Contents Monitor Type..........3-25 Display Off After........3-25 HDD Off After..........3-25 Deturbo After..........3-26 Break Switch..........3-26 Peripheral Setup..........3-26 Programming Mode........3-27 Onboard FDC..........3-27 Serial Port 1..........3-27 Serial Port 2..........3-27 Parallel Port..........3-27 IRQ Active..........3-28 Parallel Port Mode........3-28 Utility Setup............3-28 Detect Master and Detect Slave....3-28 Color Set...........3-29 Default Setup.............3-30 Original............3-30...
  • Page 13 Table of Contents Exit Setup............3-35 NCR SCSI BIOS and Drivers......3-36 Appendix A Jumper Summary Appendix B SiS Drivers...
  • Page 14 Chapter Features The AP41 is a 486-based system board that utilizes the PCI/ISA architecture. It supports the 486SX, DX, DX2, and DX4 series microprocessors. It has four ISA-AT and three PCI slots for future expansion. The system memory is expandable to 128 MB by adding single in-line memory modules (SIMMs).

  • Page 15: Features

    Features Specifications Microprocessor 5V CPUs Intel SL-enhanced Intel SX/DX/DX2 AMD DX/DX2 Cyrix DX/DX2 Intel P24D Intel P24T 3.45V CPUs Intel DX4 AMD DX2 AMD DX4/DX4-S Cyrix DX2/DX4/5X86 TI DX2 Maximum Memory 128 MB SIMM Sockets Four 72-pin, 32-bit ASICs SiS85C496 SiS85C497 Bus Architecture ISA, PCI...

  • Page 16: Board Layout

    Features Board Layout 1. Keyboard connector 11. HDD LED connector 2. COM1 connector 12. BIOS 3. COM2 connector 13. ISA slots 4. Power connector 14. PCI slots 5. 72-pin SIMM sockets 15. Keyboard controller 6. ZIF-type CPU socket 16. IDE2 connector 7.

  • Page 17: System Board Parts

    Features System Board Parts Microprocessor The AP41 system board supports the Intel SL-enhanced, Intel 486SX/ DX/DX2/DX4, 486DX/DX2/DX4/DX4-S, Cyrix 486DX/DX2/DX4/5X86 and TI 486DX2 series microprocessors. Chapter 2 gives details on how to upgrade the processor. User’s Guide...

  • Page 18: Asics

    Features ASICs The two ASICs onboard are the SiS85C496 and SiS85C497. The SiS85C496 acts as the PCI and CPU memory controller (PCM). It integrates the host bridge, the cache and main memory DRAM controller, the PCI bridge, the built-in IDE controller and the Fast Slow Link (FS-Link) bus.

  • Page 19: Dram Sockets

    Features DRAM Sockets The system board has four 72-pin DRAM sockets that expand system memory from 1 MB to a maximum of 128 MB. These sockets accept single- and double-density SIMMs. Chapter 2 tells how to install memory modules. Two-Channel PCI Mode 4 IDE The board utilizes the enhanced-integrated drive electronics (E-IDE) interface that improves the data transfer rate.

  • Page 20: Sram

    The system board supports 128-KB, 256-KB and 512-KB second- level, write-back and write-through cache. Power Management The AP41 conforms to the power-saving standards of the U.S. Environmental Protection Agency (EPA) Energy Star program. The system board features four power-saving modes that reduce power consumption.

  • Page 21: Hardware Setup

    Chapter Hardware Setup This chapter discusses the CPU options, tells how to set jumpers, upgrade system memory, add expansion boards, and install the system board. Install the CPU, memory, and set the jumpers before you install the system board inside a system housing. You may add the other components after installing the board.

  • Page 22: Esd Precautions

    Hardware Setup 3.45 V CPU Options 3.45V CPU Type Speed (MHz) Intel 486DX4 75/100 AMD 486DX2 66/80 AMD 486DX4 AMD 486DX4-S 100/120 Cyrix DX2 V50/V66/V80 Cyrix DX4 100/120 Cyrix 5X86 TI DX2 66/80 ESD Precautions Electrostatic discharge (ESD) can damage your CPU, disk drives, expansion boards, and other components.

  • Page 23: Installing A Microprocessor

    Hardware Setup Installing a Microprocessor The motherboard has a zero-insertion force microprocessor socket that allows you to install a CPU without using any tools. Follow these steps to install a CPU in a ZIF-type upgrade socket: Make sure that the system power is OFF before installing any component.

  • Page 24: Upgrading The Microprocessor

    Hardware Setup Pull down the socket lever to lock the CPU into the socket. Plug the fan cable into the onboard fan connector. Set the jumpers accordingly. See the following sections for the correct jumper settings. Upgrading the Microprocessor Follow these steps to upgrade the CPU: Turn off the system power.

  • Page 25: Jumper Settings

    Hardware Setup Jumper Settings You have to change the jumper settings when you reconfigure the system. This section tells how to reset the jumpers. The figure below shows the jumper locations. Set a jumper switch as follows: · To close a jumper switch, insert the plastic jumper cap over two pins of a jumper.
  • Page 26 Hardware Setup The following conventions are used to represent the proper jumper settings. Open Closed (2-3 position) When you open a jumper, attach the plastic jumper cap to one of the pins so you won't lose it. User’s Guide...

  • Page 27: Changing The Cpu Type

    Hardware Setup Changing the CPU Type You must set jumpers JP11 to JP23 and JP40 according to the CPU type. The board supports both 5V and 3.45V CPUs. Make sure that you know your CPU type and its operating voltage before you begin. Improper setting of jumpers may result in system failure.
  • Page 28 Hardware Setup 5V CPU TYPE JUMPER SETTINGS JP11 JP12 JP13 JP14 JP15 JP16 JP17 JP18 JP19 JP20 JP21 JP22 JP23 JP40 User’s Guide...
  • Page 29 Hardware Setup 3.45V CPU Type INTELDX4 CPUS You must be able to determine your IntelDX4 CPU type before you set the jumpers. Improper setting may result to system malfunction. There are two types of 3.45V IntelDX4 CPUs: one with write-through mode support while the other is with write-back mode support.
  • Page 30 Hardware Setup AMD DX4 CPUS The 3.45V AMD DX4 processors come in three types: AMD DX4 (V8T), AMD DX4-S(SV8T) and AMD DX4-S(SV8B). The AMD DX4 (V8T) is a non SL-enhanced CPU that supports write-through internal cache mode. The AMD DX4-S(SV8T) is an SL-enhanced CPU that supports write-through internal mode.
  • Page 31 Hardware Setup CYRIX DX4 CPUS There are two types of Cyrix DX4 CPUs: Cyrix DX4 with iDX4 pinout and Cyrix DX4 with M7 pinout. To determine the Cyrix DX4 CPU pinout, check the CPU label. A Cyrix DX4 with iDX4 pinout has a “DX4 P/O” indication on the second row of the lower CPU label.
  • Page 32 Hardware Setup 3.45V CPU TYPE JUMPER SETTINGS JP11 JP12 JP13 JP14 JP15 JP16 JP17 JP18 JP19 JP20 JP21 JP22 JP23 JP40 2-12 User’s Guide...
  • Page 33 Hardware Setup JP11 JP12 JP13 JP14 JP15 JP16 JP17 JP18 JP19 JP20 JP21 JP22 JP23 JP40 User’s Guide 2-13...

  • Page 34: Setting The Oscillator Frequency

    Hardware Setup Setting the Oscillator Frequency You must reset jumpers JP30, JP31 and JP32 if you change the oscillator frequency. 25 MHz 33 MHz 40 MHz JP30 JP31 JP32 Setting the Flash ROM Type Set jumper JP4 according to the type of Flash ROM in use. If the system uses a 5V EEPROM (or 5V Flash ROM) instead of a 12V Flash ROM, you must set the jumper to 2-3.

  • Page 35: Selecting The Ecp Dma Channel

    Hardware Setup Selecting the ECP DMA Channel The jumpers JP2 and JP3 are used to select the DMA channel for ECP function. The default channel is DMA 1. DMA 1 DMA 3 Enabling the FDC and Super I/O Chip The jumper JP1 is used to enable or disable the floppy disk controller (FDC) and the super I/O chip.

  • Page 36: Selecting The Cache Size

    Hardware Setup Selecting the Cache Size The system board supports 128-KB, 256-KB, and 512-KB, write-back and write-through second-level cache. See the table below for the possible cache configurations. The second-level cache is upgradable from 128 KB to 512 KB. The system supports both write-back and write-through modes.
  • Page 37 Hardware Setup Press the SRAM chip gently but firmly into place. Be careful not to bend the pins. When upgrading the cache, install the SRAM chips and set jumpers JP24, JP25, JP26, JP27 and JP29 accordingly. See the following figure. 128 KB 256 KB 256 KB...

  • Page 38: Clearing The Cmos

    Hardware Setup Clearing the CMOS The 3-pin jumper JP37 is used to clear the values in the CMOS. You need to clear the CMOS if you forget your system password. To do this, shut off the system power and short pins 2-3 of JP37 for a few seconds.

  • Page 39: Installing A Simm

    Hardware Setup The SIMM sockets accept any DRAM combinations that satisfy the 128 MB maximum memory. Installing a SIMM Observe precautions when installing components. Follow these steps to install a SIMM: Slip a SIMM at a 45 angle into a socket with the component side facing down.

  • Page 40: Removing A Simm

    Hardware Setup Removing a SIMM Press the holding clips on both sides of the SIMM outward to release it. Press the SIMM downward to about a 45 angle. Gently pull the SIMM out of the socket. 2-20 User’s Guide...

  • Page 41: Connectors

    Hardware Setup Connectors Multifunction Connector This 20-pin connector is marked CN5 on the system board. supports a number of system functions: LED, turbo, reset, keylock, and speaker. Attach the front panel connectors to the corresponding pins as in the illustration below. Speaker Power LED Keylock Speaker...
  • Page 42 Hardware Setup Speaker Keylock and Power LED Speaker Keylock & Power LED Reset Break Switch Green Mode LED Reset Turbo Switch Turbo LED ( Turbo Switch ) ( Turbo LED ) (Green Mode LED) Other housings may have a 12-pin connector. If your housing has this type of connector, plug it into CN5 as shown in the following figure.

  • Page 43: Keyboard Connector

    Hardware Setup Turbo LED/Green Mode LED You can use the CN5 LED connector either for the Turbo function or for the Green Mode function. However, you cannot use both functions at the same time. To use the LED for turbo, you need to connect the turbo switch into the CN5 multifunction connector.

  • Page 44: Power Connector

    Hardware Setup Power Connector A standard power supply has two cables with six wires each. Attach these cables to the power connector on the board in such a way that all the black wires are in the center. Break/Suspend Connector The Break/Suspend connector is a 3-pin connector labeled JP9 on the system board.
  • Page 45 Hardware Setup You cannot use the break switch and the turbo switch at the same time. User’s Guide 2-25...

  • Page 46: Fan Power Connectors

    Hardware Setup Fan Power Connectors The board comes with one 2-pin and one 4-pin fan power connector. The 2-pin fan power connector is marked JP43 on the system board. To connect, plug the connector to its corresponding pin as shown in the following figure.

  • Page 47: External Battery Connector

    Hardware Setup External Battery Connector The 4-pin external battery connector is marked JP35 on the system board. This is used to connect an external battery in case your system board does not have an onboard battery or the 146818 RTC/battery. To connect an external battery, simply plug the battery connector into JP35.

  • Page 48: Installation

    Hardware Setup Installation The baby-AT size of the AP41 system board easily fits most housings. It has mounting holes that conform to the standard system housing. Some housings may differ slightly in design, requiring additional steps to install the board. Read the documentation that comes with the housing.

  • Page 49: Installing Expansion Boards

    Hardware Setup Installing Expansion Boards Install any expansion boards after you have installed the system board into the housing. Follow these steps to install an expansion board. Remove the bracket opposite the slot that you want to use. Save the cover for future use. Save the screw to secure the expansion board.

  • Page 50: Ami Bios

    Chapter AMI BIOS AMI BIOS Setup Main Menu The AMI BIOS Setup Main Menu appears below. Press to enter the system menu. The AMI BIOS is in Windows form. You can use either the keyboard or a mouse to move between the items. To select among the Setup groups, use to highlight the selected group or simply click on the icon of the selected Setup menu.

  • Page 51: Standard Cmos Setup

    AMI BIOS Standard CMOS Setup Highlight Setup using or simply click on the Setup icon. Select Standard to input configuration values such as the date, time, and disk types. The Standard CMOS Setup pop-up window appears below: Date/Time To set the date and time, highlight Date/Time and press or double- click on the Date/Time icon.

  • Page 52: Floppy Drives A And B

    AMI BIOS Floppy Drives A and B To configure the floppy drive, select Floppy A. The following values appear on the screen: After selecting the proper setting, press or double-click the Control menu box to close the window. Select Floppy B and follow the same procedure to configure the second floppy drive, if present.

  • Page 53: Hard Disk Drives

    AMI BIOS Hard Disk Drives Select Master Disk to configure the first hard disk. The following values appear on the screen: Press to move to the next page. Use to highlight the selected parameter. If you cannot find your hard disk drive type on User the list, select and enter the disk parameters.

  • Page 54: Advanced Cmos Setup

    AMI BIOS Advanced CMOS Setup The window below appears if you select Advanced from the main menu. The screen above does not show all the parameters of the Advanced Configuration menu. Use to highlight the desired parameter. Press to view the rest of the parameters. The following screens appear: User’s Guide...
  • Page 55 AMI BIOS User’s Guide...

  • Page 56: Typematic Rate (Chars./Sec.)

    AMI BIOS Typematic Rate (Chars./Sec.) This parameter determines the typematic rate. The typematic rate settings are 15, 20, 30, and Disabled. The default setting is Set it to Disabled to disregard the rate setting. User’s Guide...

  • Page 57: System Keyboard

    AMI BIOS System Keyboard Set this parameter to Present if there is a keyboard connected to the system. However, some servers may not have keyboards. Select Absent if there is no keyboard present. Primary Display This function detects the type of VGA in use. The settings are VGA/EGA, CGA 40 x 25, CGA 80 x 25, Mono, and Absent.

  • Page 58: Extended Bios Ram Area

    AMI BIOS Extended BIOS RAM Area This function allows you to relocate the BIOS from ROM to RAM. Relocating to RAM enhances system performance as information access is faster than ROM. The parameter settings are 0:300 and DOS 1K. The default address is 0:300 Wait for F1 If Any Error If this option is enabled, the BIOS waits for the end user to press...

  • Page 59: Floppy Drive Swapping

    AMI BIOS Floppy Drive Swapping This parameter allows you to swap floppy drives. For example, if you have two floppy drives (A and B), you can assign the first drive as drive B and the second drive as drive A or vice-versa. Disable the parameter to bypass the function.

  • Page 60: Cpu Selection

    AMI BIOS CPU Selection The available settings for this parameter are Auto, Intel, AMD and Cyrix. Check your CPU before setting this parameter. Otherwise, select Auto to automatically configure the CPU. The default setting Auto Cache External Cache This parameter lets you enable or disable the secondary cache. The default setting is Enabled Leave it enabled unless you are...

  • Page 61: Shadow C800, D000, D800, 32K

    AMI BIOS Internal Cache Mode The internal cache is normally set to Write-through . If you are using a Cyrix CPU, you may change the setting to Write-back better performance. Intel P24D also supports the Write-back mode. CPU Burst Write This parameter enables or disables the CPU cache burst-write mode for M7, P24D and P24T.

  • Page 62: Main Bios Cacheable

    AMI BIOS Main BIOS Cacheable The default setting for this parameter is Enabled . This enhances the system performance. Disabling the parameter prevents the system BIOS from being cached. Cacheable C800, D000, D800, 32 K The default setting for these parameters is Enabled This Disabled...

  • Page 63: Primary 2Nd Ide Block Mode

    AMI BIOS Primary 2nd IDE Block Mode This function enhances the performance of the secondary IDE hard disk connected to your IDE 1 connector. This parameter is normally set to Disabled If enabled, it allows data transfer in block (multiple sectors) by increasing the data transfer rate. Disable the parameter if your hard disk does not support this feature.

  • Page 64: Chipset Setup Mode

    AMI BIOS 32-bit Transfer Normally, this parameter is set to Disabled . Enabling this function improves disk performance by increasing the data transfer rate from 16-bit to 32-bit. Chipset Setup Mode This function allows you to change the Chipset Setup DRAM and SRAM parameters according to the end-user type.
  • Page 65 AMI BIOS 3-16 User’s Guide...
  • Page 66 AMI BIOS The screen below appears if your Chipset Setup Mode parameter Engineer setting is Take note of the new parameters that replaced the Memory Speed (DRAM) and the Cache Speed (SRAM) parameters. See screens 2,3 and 4 for the rest of the parameters. This manual describes...

  • Page 67: Memory Speed (Dram)

    AMI BIOS Memory Speed (DRAM) This parameter lets you set the DRAM speed. The supported DRAM speeds are 70 ns and 60 ns. The default setting is 70 ns Cache Speed (SRAM) This parameter lets you set the SRAM cache speed. The supported DRAM speeds are 15 ns and 20 ns.
  • Page 68 AMI BIOS Primary Master PIO Mode If this enhanced IDE parameter is set to Auto , it automatically detects the PIO mode (mode 0, 1, 2, 3, 4) and sets the interface timing of the master drive connected to the primary IDE connector. If you know your HDD PIO mode, you can set this parameter manually.
  • Page 69 AMI BIOS For the PIO Mode parameters, we Auto recommend that you select . This automatically detects the correct PIO mode your prevents configuration error caused by wrong data entry. PCI IDE Non-compliant Card This parameter allows you to select your PCI IDE card slot. The available selections are Slot 1, Slot 2, Slot 3 and Absent.
  • Page 70 AMI BIOS PCI IRQ Allocation The settings for this parameter are Auto and Manual. If you select Auto , it automatically sets the IRQs and INTs for the PCI devices installed in your system. If you want to configure your PCI device parameters, select Manual PCI Slot 1/2/3 INT Connect...

  • Page 71: Power Management Setup

    AMI BIOS Power Management Setup The screen below appears if you select Power Management from the main menu. To select, highlight Power Mgmt and press or double- click on the Power Management icon. BIOS Power Management Mode Enable this parameter to take advantage of the power-saving feature. To enable, simply select an IRQ setting.
  • Page 72 AMI BIOS User’s Guide 3-23...

  • Page 73: Advanced Power Management

    AMI BIOS If you are using OS/2, Windows NT, Novell or UNIX operating systems, you must disable the power management function. Advanced Power Management Set this parameter to Enabled to take full advantage of the power- saving feature. Disable the parameter to bypass the feature. Doze Timer This function reduces the CPU clock to 8 MHz.

  • Page 74: Wake-Up Events

    AMI BIOS Wake-up Events Enabling these parameters allow your system to monitor the I/O activities. Any activity detected resets the power-management timers and resumes the system to normal mode. You must enable at least one IRQ activity. Otherwise, the system stays in suspend mode.. Monitor Type This option lets you set the monitor type.

  • Page 75: Deturbo After

    AMI BIOS Deturbo After This function lets you specify the mode when to release the system from turbo mode. The settings are Doze, Suspend, Standby and Disabled. Break Switch This option lets you enable or disable the break switch. Enabling this parameter allows the system to enter suspend mode and return to normal mode by simply pressing the break switch.

  • Page 76: Programming Mode

    AMI BIOS Programming Mode The settings for this option are Auto and Manual. The Manual setting allows you to set up the screen items manually. The Auto setting sets up all the items automatically except for the Parallel Port Mode parameter.

  • Page 77: Irq Active

    AMI BIOS IRQ Active This option specifies if the parallel and serial port IRQs are active high or active low. The default setting is High Parallel Port Mode This option lets you set the parallel port mode. The settings are Normal, SPP, EPP &...

  • Page 78: Color Set

    AMI BIOS Color Set This pop-up window appears if you select Color Set from the Utility Setup menu. Color Set lets you select the color of your windows background. The selections are LCD, Army, Pastel, and Sky. User’s Guide 3-29...

  • Page 79: Default Setup

    AMI BIOS Default Setup Select this option to automatically set your system configuration parameters. To select, highlight Default and press Original This option loads the values that you saved before shutting off the system. The following prompt appears if you select Original from the Default Setup menu.

  • Page 80: Fail-Safe

    AMI BIOS Fail-safe Choose this option and the BIOS automatically configures the system using the most stable settings. These settings are not necessarily the best settings for system performance, but safe and stable enough to guarantee you that your system will boot. This is useful if you are having problems with your current system configuration and need to determine the cause.

  • Page 81: Security Setup

    AMI BIOS Security Setup Password The system password prevents unauthorized use of your computer. If you enabled the password feature, it is impossible to boot the computer without entering the password. To set a password, highlight Password or simply double-click the Password icon.
  • Page 82 AMI BIOS If you forget your password, you must clear the CMOS RAM and reconfigure the system. To disable the password, press when prompted for your password. Press again when prompted to retype the password. User’s Guide 3-33...

  • Page 83: Anti-Virus

    AMI BIOS Anti-virus Set this parameter to Enabled to protect the boot sector and partition table of your hard disk from virus intrusion. Set it to Disabled to bypass the feature. A prompt appears when you select Anti-virus from the Security Setup menu: Select Enabled...
  • Page 84 AMI BIOS Exit Setup To exit Setup, you can either double-click on the Control menu box or simply press . A dialog box appears on the screen. Save Changes and Exit If you select , BIOS automatically saves all CMOS values before leaving Setup. Select Do Not Save Changes and Exit to exit Setup without saving the CMOS...
  • Page 85 AMI BIOS NCR SCSI BIOS and Drivers The NCR 53C810 SCSI BIOS resides on the same flash memory chip as the system BIOS. To use the onboard NCR BIOS, you need to install an NCR 53C810 SCSI controller card in your system. All SCSI devices that you install in your system require software drivers.
  • Page 86 AMI BIOS User’s Guide 3-37...
  • Page 87 Appendix Jumper Summary CPU Type 5V CPU TYPE Intel 486SX Intel Intel P24D Intel P24T SL-enhanced 486DX/DX2 SL-enhanced JP11 JP12 JP13 Open Open Open JP14 Open Open Open JP15 Open Open Open JP16 Open Open JP17 1-2, 3-4 JP18 1-2, 3-4 1-2, 3-4 1-2, 3-4 JP19...
  • Page 88 Jumper Summary 3.45V CPU TYPE Intel Intel 486DX4 486DX4 486DX2 486DX4 486DX4-S 486DX4-S (W/T) (W/B) (V8T) (SV8B) (SV8T) JP11 JP12 Open Open JP13 Open Open Open Open Open Open JP14 Open Open Open JP15 Open Open Open Open JP16 Open Open Open Open...
  • Page 89 Jumper Summary Oscillator Frequency 25 MHz 33 MHz 40 MHz JP30 JP31 JP32 Flash ROM Type Type 12V Flash ROM 5V EEPROM or Flash ROM ECP DMA Channel DMA Channel DMA 1 DMA 3 FDC and Super I/O Chip Function Enabled Disabled User’s Guide...
  • Page 90 Jumper Summary Cache Type and Size Cache Size JP24 JP25 JP26 JP27 JP29 32 KB x 4 = 128 KB 1-2, 3-4 32 KB x 8 = 256 KB 2-3, 4-5 64 KB x 4 = 256 KB 1-2, 3-4 64 KB x 8 = 512 KB 2-3, 4-5 128 KB x 4 = 512 KB...
  • Page 91 Appendix SiS Drivers B This appendix tells how to install the SiS supported drivers using the installation utility. DOS, Windows, WFW (Workgroup) and NetWare To install DOS, Windows, WFW (Workgroup) and NetWare drivers, simply run INSTALL.EXE. Windows NT 1. From Windows Setup Options...
  • Page 92 SiS Drivers OS/2 From the OS/2 desktop, open the OS/2 system. Open System Setup. Select Device Driver Install Insert the driver diskette into drive A or B. Change the source directory to A:\OS2 B:\OS2 Select Install Click on SCO UNIX To install the SCO UNIX drivers, refer to the README.SCO file in the SCO directory.
  • Page 93 SiS Drivers CD/SOS TAR XVF/TMP/SIS486.TAR Insert the diskette into the drive and enter the following command: TAR CVF/DEV/(diskette drive 0 device name) Your diskette drive 0 device name may be: · 5.25 DSHD RFD096DS15 · 3.5 DSHD RFD0135DS18 · 5.25 DSHD RFD048DS9 ·...

Table of Contents