AP53 Mainboard User Guide
Copyright Copyright 1996 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.
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".
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.
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 one appendix: Chapter 1, Overview, covers the specifications, layout, and components of the system board. Chapter 2, Hardware Installation, tells how to install the hardware components, configure the system by resetting the jumpers, install the system board and add expansion cards.
About This Manual Conventions The following conventions are used in this manual: Text entered by user, default settings, recommended selections Represent text input by the user, default settings and recommended selections a, e, s, etc Represent the actual keys that you have to press on the keyboard. NOTE Gives bits and pieces of additional information related to the current topic. WARNING Alerts you to any damage that might result from doing or not doing specific actions.
Table of Contents Chapter 1 Overview 1.1 Board Layout.........................................1-2 1.2 Specifications .......................................1-3 1.3 System Board Parts..............................1-4 1.3.1 Microprocessor .................................1-4 1.3.2 ASICs ...............................................1-4 1.3.3 BIOS.................................................1-4 1.3.4 Expansion Slots................................1-5 1.3.5 DRAM Sockets ...................
Table of Contents 2.5 Upgrading the Microprocessor............2-7 2.6 Configuring the System Memory.........2-7 2.6.1 Installing a SIMM ..............................2-9 2.6.2 Removing a SIMM ..........................2-10 2.7 viii Customizing your Hardware Setup ..................................2-11 2.7.1 Selecting the Flash ROM Type.......2-11 2.7.2 Disabling the Onboard Super I/O Controller .......................................2-11 2.7.3 Selecting the ECP DMA Channel ...2-12 2.7.
Table of Contents 2.10 Chapter 3 Installing Expansion Boards..............2-20 AMI BIOS Utility 3.1 Entering the AMI BIOS Setup...............3-1 3.2 Setup Menu ...........................................3-2 3.2.1 Standard Setup ................................3-3 3.2.2 Advanced CMOS Setup ...................3-7 3.2.3 Chipset Features Setup..................3-13 3.2.4 Power Management Setup .............3-17 3.2.5 PCI/PnP Setup ...............................3-20 3.2.6 Peripheral Setup.....
Table of Contents 3.7 Appendix A x NCR SCSI BIOS and Drivers ..............
Chapter 1 Overview The AP53 is a high-performance Pentium-based system board that utilizes the PCI/ISA architecture. It integrates the Intel 430HX PCIset, a super I/O controller, a PCI mode 4 enhanced IDE controller with bus master support and a 256-KB pipelined-burst cache to enhance system performance. It also has four single in-line memory module (SIMM) sockets that allow memory expansion up to a maximum of 512 MB.
Overview 1.
Overview 1.2 Specifications Microprocessor Pentium (3.3V) Processor 75/90/100/120/133/150/166/200 MHz Memory 512 MB (maximum) SIMM Sockets 72-pin SIMM x 4 ASICs Intel 430HX PCIset Bus Architecture ISA, PCI Expansion Slots Three ISA and four PCI slots Ports One parallel port (SPP/ECP/EPP) Two serial ports (UART 16C550) Two-channel PCI mode 4 IDE ports (bus master transfer support) One floppy disk drive port (360/720 K, 1.2/1.44/2.
Overview 1.3 System Board Parts 1.3.1 Microprocessor The AP53 system board uses an Intel Pentium (3.3V) processor running at 75, 90, 100, 120, 133, 150, 166, or 200 Hz. Chapter 2 tells how to install and upgrade a Pentium processor. 1.3.2 ASICs The application-specific integrated circuits (ASICs) are the Intel 82439 and Intel 82371 that belong to the Intel 430HX PCIset. This chipset allows the system to support a higher memory (512 MB) and a pipelined-burst cache.
Overview 1.3.4 Expansion Slots The board has three ISA and four PCI expansion slots. The ISA expansion slots are the black parallel bars on the system board. The PCI slots are those with white color and are shorter than the ISA slots. There are rows of golden pins inside each slot that serve as a clutch to secure the contacts of the expansion board. For information on how to install the expansion boards, see Chapter 2. 1.3.
Overview 1.3.8 Super I/O Controller The onboard super I/O controller accommodates the following: • Two UART 16450/16550-compatible fast serial ports • A parallel port with standard parallel port (SPP), enhanced parallel port (EPP) or extended capabilities port (ECP) support. Both the EPP and ECP comply with the IEEE 1284 standards. • 3.5-inch floppy disk drives with 720-KB, 1.44-MB or 2.88-MB format. • 5.25-inch floppy disk drives with 360-KB, 1.2-MB format 1.3.
Chapter 2 Hardware Installation This chapter gives you a step-by-step procedure on how to install your system. Follow each section accordingly. 2.1 ESD Precautions Electrostatic discharge (ESD) can damage your processor, disk drives, expansion boards, and other components. Always observe the following precautions before you install a system component. 1. Do not remove a component from its protective packaging until you are ready to install it. 2.
Hardware Installation 2.
Hardware Installation 2.3 Setting the Jumper Set a jumper switch as follows: • • To open a jumper, remove the jumper cap. To close a jumper, insert the plastic jumper cap over two pins of a jumper. The conventions in the figure are used to represent the proper jumper settings.
Hardware Installation 2.4 Installing a Microprocessor The motherboard comes with a zero-insertion force (ZIF) microprocessor socket that allows you to install a CPU without using any tool. Follow these steps to install a CPU into a ZIF-type CPU socket: Make sure that the system power is OFF before installing a component. 1. Locate the CPU socket on the system board and pull up the socket lever. Hole 1 2. Gently insert the CPU. Make sure that pin 1 of the CPU aligns with hole 1 of the socket.
Hardware Installation 4. Attach the heatsink and fan to the CPU. 5. Plug the fan cable onto the two-pin fan connector onboard. The fan connector is marked CN15 on the system board.
Hardware Installation 6. Set jumpers JP1 and JP10 according to the frequency of the CPU that you install. CPU FREQUENCY SELECT JP1 JP10 75 MHz 90 MHz 100 MHz (default) 120 MHz 133 MHz 150 MHz 166 MHz 7. Set jumper JP11 according to the CPU voltage. CPU VOLTAGE SELECT JP11 3.45V (default) 3.
Hardware Installation 2.5 Upgrading the Microprocessor To upgrade a CPU: 1. Turn off the system power and remove the housing cover. 2. Locate the CPU socket on the system board. 3. Pull up the socket lever. 4. Remove the installed CPU, if any. 5. Install the upgrade CPU. Refer to section 2.3 for instructions on how to install a CPU. 2.6 Configuring the System Memory The system board has four 72-pin SIMM sockets that allow you to expand the system memory to 512 MB.
Hardware Installation 2-8 16 MB 8 MB 8 MB 20 MB 2 MB 2 MB 8 MB 8 MB 24 MB 4 MB 4 MB 8 MB 8 MB 32 MB 8 MB 8 MB 8 MB 8 MB 32 MB 16 MB 16 MB 36 MB 2 MB 2 MB 16 MB 16 MB 40 MB 4 MB 4 MB 16 MB 16 MB 48 MB 8 MB 8 MB 16 MB 16 MB 64 MB 16 MB 16 MB 16 MB 16 MB 64 MB 32 MB 32 MB 68 MB 2 MB 2 MB 32 MB 32 MB 72 MB 4 MB 4 MB 32 MB 32 MB 80 MB 8 MB 8 MB 32 MB 32 MB 96 MB 16 MB 16 MB 32 MB 32 MB 128 MB 32 MB 32 MB 32 MB 32 MB 128 MB 64 MB 64 MB 136
Hardware Installation 2.6.1 Installing a SIMM Observe the ESD precautions when installing components. Follow these steps to install a SIMM: 1. Slip a SIMM at a 45° angle into a socket. If the SIMM does not completely fit into the socket, reverse the SIMM orientation. The SIMM has a curved edge indicating pin 1 that ensures installation in one direction only. curved edge Be careful when inserting or removing SIMMs. Forcing a SIMM in or out of a socket can damage the socket or the SIMM (or both). 2.
Hardware Installation 2.6.2 Removing a SIMM To remove a SIMM: 1. Press the holding clips on both sides of the SIMM outward to release it. 2. Press the SIMM downward to about a 45° angle. 3. Gently pull the SIMM out of the socket.
Hardware Installation 2.7 Customizing your Hardware Setup You may customize your hardware setup according to your desired system performance. However, doing so requires resetting of several jumpers. The onboard jumpers are normally set to its default setting. See the figure in section 2.2 for the location of the jumpers on the system board. The following sections tell how to configure the system board to meet the desired performance: 2.7.
Hardware Installation 2.7.3 Selecting the ECP DMA Channel The available ECP DMA channel selections are DRQ3/DACK3 and DRQ1/DACK1. The default is DRQ3/DACK3. To select DRQ1/DACK1, reset jumpers JP6 and JP7 to 2-3. JP6 JP7 DRQ3/DACK3 (default) DRQ1/DACK1 The onboard I/O controller may either be SMC 665 or SMC 669. If you have SMC 669, JP6 and JP7 must be set to open. 2.7.4 Clearing the CMOS You need to clear the CMOS if you forget your system password.
Hardware Installation 2.7.5 Disabling the PS/2 Mouse Function The PS/2 mouse function is normally enabled and occupies IRQ12. To reassign IRQ12 to another function, you need to disable the PS/2 mouse function by opening jumper JP4 and changing the BIOS setup. For detailed information on BIOS, see Chapter 3. JP4 Enabled (default) Disabled 2.7.6 Setting the Keyboard Clock The jumper JP1401 enables you to set the keyboard clock. The clock selections are ISA clock and 12 MHz.
Hardware Installation 2.8 Installing the System Board Make sure that you have already installed the system board components like the CPU and memory, and have set the appropriate jumpers before you proceed. Follow these steps to install a system board into a housing: 1. Open the system housing. Refer to the housing documentation for steps on how to remove the housing cover. 2. Install the board into the housing and secure it with the screws that come with the housing. 3.
Hardware Installation 2.9 Connecting Peripherals 2.9.1 Power Cable A standard power supply has two cables with six wires each. Plug these cables to the onboard power connector in such a way that all the black wires are in the center. The power connector is marked CN3 on the system board. Make sure that the power supply is off before connecting or disconnecting the power cable. 2.9.2 Mouse PS/2 Mouse To connect a PS/2 mouse, simply insert the PS/2 bracket connector onto CN4 on the system board.
Hardware Installation Serial Mouse To connect a serial mouse, plug in the serial bracket connectors onto the CN6 and CN7. Insert the serial mouse connector into the appropriate COM port on the bracket. See section 2.9.3. 2.9.3 Serial Devices (COM1/COM2) To support serial devices, insert the serial device connector into the serial port on the bracket. Plug in the serial port bracket connectors onto the appropriate onboard connectors.
Hardware Installation 2.9.5 Printer Plug in the printer bracket connector onto the onboard parallel connector marked CN9 on the board. Refer to the figure. The printer port on the bracket accepts the printer cable. 2.9.6 IDE Devices Primary IDE Connector The primary IDE connector marked CN10 on the system board supports two IDE devices - one IDE hard disk and one additional IDE device. Connect your IDE HDD into the master port of the primary IDE cable.
Hardware Installation Secondary IDE Connector The secondary IDE connector is marked CN11 on the board. This connector also supports two IDE devices. To install an IDE CD-ROM drive into your system, insert master port of the secondary IDE cable into the CD-ROM drive connector. If you have more than two hard disks, connect your third hard disk into the master port. Connect your CD-ROM drive into the slave port. 2.9.7 Front-panel Switches and LEDs HDD LED The HDD LED connector is marked CN12 on the board.
Hardware Installation Some housings have a five-pin connector for the keylock and power LED. Speaker Reset Other housings may have a 12-pin connector. If your housing has this type of connector, plug it onto CN16 as shown in the following figure. Make sure that the red wire of the connector connects to pin 11. Keylock & Power LED Break Switch ( Turbo Switch ) Green Mode LED ( Turbo LED ) Ground Reset Res-VCC Speaker Keylock Ground Break Switch ( Turbo Switch ) VCC Ground 2.9.
Hardware Installation 2.10 Installing Expansion Boards Before you install any expansion board, make sure that you have secured the system board in the housing. Follow these steps to install an expansion board: 1. Observe the ESD precautions before removing the expansion board from its protective packaging. 2. Locate an empty expansion slot on the system board. 3. Remove the bracket opposite the slot that you want to use. Save the cover and screw for future use. 4.
Chapter 3 AMI BIOS Utility This chapter tells how to configure the system by setting the BIOS parameters. 3.1 Entering the AMI BIOS Setup To enter the AMI BIOS Setup, press c. The AMI BIOS Setup Main Menu appears as shown below. 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 menu groups, use v to highlight the selected group or simply click on the icon of the selected Setup menu.
AMI BIOS Utility To select among the options, you can either use the arrow keys to move the highlight bar or simply click on the icon of the desired option. After making your selection, press e or double-click on the icon to open the selected menu option. You can press h to enter the BIOS Setup screen. This also enables you to do the following: • Resolve an address conflict due to an IRQ address assigned to multiple slots. For more information on IRQ assignment, see the section 3.2.
AMI BIOS Utility You can input configuration values such as date, time and disk types in this menu. PRIMARY MASTER AND SLAVE/ SECONDARY MASTER AND SLAVE These parameters allow you to configure the hard disks and the IDE devices connected to your IDE connectors. To configure the hard disk connected to the master port of the primary IDE connector, select Primary Master and press e.
AMI BIOS Utility Installed. Select Auto to automatically configure the installed hard disk or IDE device. Select CD-ROM if you have a CD-ROM installed in your system. If you have an old type HDD installed, you may need to enter the HDD parameters manually. To do this, you must set this parameter to User. Set this to Not Installed to bypass the function. LBA/Large Mode This enhanced IDE feature allows the system to use a hard disk with a capacity of more than 504 MB.
AMI BIOS Utility Block Mode This function enhanced disk performance depending on the hard disk in use. If enabled, it allows data transfers in block (multiple sectors) by increasing the data transfer rate to 256 bytes/cycle. However, if your hard disk does not support this function, set this parameter to Off. This parameter becomes nonconfigurable when the HDD Type parameter is set to Auto. 32-bit Mode Enabling this parameter improves system performance by increasing the hard disk access to 32-bit mode.
AMI BIOS Utility HARD DISK TYPES After you have set all the necessary parameters, press e. A list of the HDD drive parameters appears: Select your hard disk type. Press the w or y to move among the selections. After you have made your selection, press e. If you cannot find your hard disk drive type on the list, select User. This allows you to enter the disk parameters manually. DATE/TIME To set the date and time, highlight Date/Time and press e.
AMI BIOS Utility FLOPPY DRIVES A AND B To configure the first floppy drive, select Floppy A. The following values appear on screen: After selecting the proper setting, press e. Select Floppy B and follow the same procedure to configure the second floppy drive. 3.2.2 Advanced CMOS Setup The following screen appears if you select the option Advanced from the Setup menu: The first screen does not show all the parameters of the Advanced Configuration menu. To scroll down the rest of the parameters, press }.
AMI BIOS Utility Do not change the settings of the Advanced Setup parameters if you are not a qualified technician. Doing so may cause fatal system failure. Quick Boot During boot-up, the system performs power-on self test (POST) routines. Enable the parameter if you want to skip some POST routines during the boot process. Set this to Disabled to let the system perform all the POST routines and follow the specified boot-up sequence.
AMI BIOS Utility Boot-up Sequence The boot-up sequence allows you to specify the system search sequence. The selections are C:, A:, CD-ROM / A:, CD-ROM, C: / A:, C:, CD-ROM / C:, CD-ROM, A: / CD-ROM, A:, C: and CD-ROM, C:, A:. If you have a bootable CD-ROM installed, you may set the CD-ROM as the first priority. The default is A:, C:, CD-ROM. Boot-up Numlock Setting this parameter to On enables the numeric function of the numeric keypad. Set this parameter to Off to disregard the function.
AMI BIOS Utility System Keyboard Set this parameter to Present if there is a keyboard connected to the system. Otherwise, select Absent. Primary Display This function detects the type of VGA in use. The selections are VGA/EGA, CGA 40 x 25, CGA 80 x 25, Mono, and Absent. The default setting is VGA/EGA. Password Check This parameter allows you to use the password feature. When set to Always, a user-password prompt appears every time you turn on the computer.
AMI BIOS Utility System BIOS Cacheable Enabling this parameter allows you to change the system BIOS from ROM to RAM. When the system boots, the BIOS routines are copied into the RAM area. This enhances system performance as information access is faster in RAM than in ROM. Disabling the parameter prevents the system BIOS from being cached. The default setting is Enabled. C000 ~ DC00, 16K Shadow These parameters are for shadowing expansion cards with ROM.
AMI BIOS Utility 3.2.3 Chipset Features Setup The Chipset Features Setup controls the board chipset settings. The controls for this menu are the same as for the previous screens. The Chipset Features Setup screen appears as follows. To scroll down the rest of the parameters, press }. Use w or y to highlight the desired parameter.
AMI BIOS Utility Memory Hole This option lets you assign the system memory area to avoid memory conflicts. The settings are 512~640K, 15~16M and Disabled. 8-bit I/O Recovery Time (Sysclk) This parameter allows you to set the response time of the 8-bit I/O devices connected to your system. The settings range from 1-7 SYSCLK and Disabled. 16-bit I/O Recovery Time (Sysclk) This parameter allows you to set the response time of the 16-bit I/O devices connected to your system.
AMI BIOS Utility cycles on four continues addresses from the DRAM cache. Therefore, it has four settings to adjust. The parameter settings are X-4-4-4, X-3-3-3, and X-2-2-2. Faster DRAMs require shorter wait states. The value of X depends on the DRAM Lead-off Timing parameter setting. The default is X-4-4-4. DRAM WRITE BURST TIMING This parameter adjusts the write wait state between L2 and DRAM cache.
AMI BIOS Utility Peer Concurrency Enable the parameter to allow the CPU to run secondary DRAM PCI master cycles to target PCI peer devices. Select Disabled to hold the CPU bus. The default setting is Disabled. Memory Error Check Mode BIOS automatically detects the memory error check mode supported by the secondary cache installed in your system. Therefore, this parameter is nonconfigurable and is for display only.
AMI BIOS Utility 3.2.4 Power Management Setup To take advantage of the power-management feature, select Power Management from the Setup menu. The following screen appears: To scroll down the rest of the parameters, press }. Use w or y to highlight the desired parameter.
AMI BIOS Utility Power Management/APM This parameter enables or disables the advanced power-management function. Instant On Timeout (Minutes) This parameter is configurable only if the Power Management/APM parameter is set to Instant On. This lets you specify when to resume system power after being in power-saving mode for a certain period of time. Green Monitor Power-down State This function lets you set when to power down your green PC monitor. The options are Standby, Suspend and Disabled.
AMI BIOS Utility Hard Disk Power-down Mode This option lets you set when to “spin down your IDE hard disk. The disk returns to full speed once the system resumes to normal mode. The available settings are Standby, Suspend and Disabled. The default setting is Suspend. Hard Disk Timeout (Minutes) This option lets you specify when to set the hard disk to the specified powerdown mode. Standby Timeout (Minutes) This function lets you set when to put the system into standby mode.
AMI BIOS Utility 3.2.5 PCI/PnP Setup The PCI/PNP Setup allows you to specify the setting for your PCI devices. The screen below appears on screen if you select PCI/PnP from the Setup menu. To scroll down the rest of the parameters, press }. Use w or y to highlight the desired parameter.
AMI BIOS Utility Plug and Play Aware O/S This parameter lets you enable or disable the Plug and Play feature. PCI VGA Palette Snoop PCI devices support the palette snooping technique that enables the device to control access to their palette registers. Enable this parameter to activate the palette snooping function in the PCI VGA devices installed in the system. Check your VGA card manual for more information about his function. The default setting is Disabled.
AMI BIOS Utility INTD, Hardwired and Disabled. If the PCI IDE Card parameter is set to Auto, this parameter becomes nonconfigurable. PCI IDE Secondary IRQ This parameter lets you assign an IRQ for the IDE device connected to your secondary IDE connector. The settings are INTA, INTB, INTC, INTD, Hardwired and Disabled. If the PCI IDE Card parameter is set to Auto, this parameter becomes nonconfigurable.
AMI BIOS Utility 3.2.6 Peripheral Setup Select Peripheral from the Setup menu and the following screen appears. Onboard FDC This parameter enables or disables the floppy drive controller. Onboard Serial Port 1 This parameter allows you to select the address for the first serial port. Selecting Disabled deactivates the port. Onboard Serial Port 2 This parameter allows you to select the address for the second serial port. Selecting Disabled deactivates the port.
AMI BIOS Utility Onboard Parallel Port This parameter allows you to select the address for the parallel port. Selecting Disabled deactivates the parallel port. PARALLEL PORT IRQ This parameter is configurable only if the Onboard Parallel Port is NOT set to Auto. This allows you to set an IRQ for the parallel port function. The available IRQ selections are 5 and 7. PARALLEL PORT ECP DMA This parameter is configurable only if the Onboard Parallel Port is NOT set to Auto.
AMI BIOS Utility 3.3 Security Setup The Security window contains the password and anti-virus features.
AMI BIOS Utility 3.3.1 Supervisor Password The use of password prevents unauthorized use of your computer. If you enabled the Supervisor password, the system prompts for the correct password before granting access to Setup. To set a Supervisor password, select Supervisor from the Security window. The following screen appears: Follow these steps to set up a password using the keyboard: 1. Type in a six-character password using letters, numbers, or a combination of both.
AMI BIOS Utility 3. Enter the password when a confirmation box appears. 3.3.2 User Password If you enabled the User password, it is impossible to boot the computer and enter Setup without entering the correct password. To set a User password, select User from the Security window. The following screen appears: For instructions on how to enter a password, follow the procedures listed in section 3.3.1. 3.3.3 Anti-virus Select Anti-Virus from the Security window to display the following option box.
AMI BIOS Utility 3.4 Utility Setup The Utility window lets you change WinBIOS Setup colors and language setting.
AMI BIOS Utility 3.4.1 Color Set Select Color Set from the Utility window to display the following screen. Use the arrow keys or simply click an option to select your desired background color for WinBIOS. 3.4.2 Language Select Language from the Utility window to display the following screen. The system language currently supported is only English. 3.5 Default Setup The Default window allows you to select a group of settings for all WinBIOS Setup options.
AMI BIOS Utility 3.5.1 Original When you select Original, a dialog box prompts you restore the old values. Select No to keep your current settings or Yes to restore the original values.
AMI BIOS Utility 3.5.2 Optimal When you select Optimal, a dialog box prompts you load the optimal values. Select No to keep your current settings or Yes to load the optimal values. 3.5.3 Fail-safe When you select Fail-safe, a dialog box prompts you load the fail-safe values. Select No to keep your current settings or Yes to load the fail-safe values. 3.6 Exiting Setup Carefully check your new settings when you have finished configuring the system.
AMI BIOS Utility Use the y or w key then press e or simply click on an option to select. Select Save changes and Exit to save the changes that you made. Select Do not save changes and Exit to leave setup without saving your changes. Select Continue if you want to make any more configuration changes. 3.7 NCR SCSI BIOS and Drivers The NCR 53C810 SCSI BIOS resides on the same flash memory chip as the system BIOS.
AMI BIOS Utility The system board also supports the AMI Flash Memory Writer Utility that allows you to upgrade the system BIOS. For more information on this utility, contact your local distributor.
Appendix A Jumper and Connector Summary CPU Frequency CPU Frequency JP1 JP10 75 MHz 1-2, 3-4 1-2, 3-4 90 MHz 1-2 1-2, 3-4 100 MHz 3-4 * 1-2, 3-4 * 120 MHz 1-2 3-4, 5-6 133 MHz 3-4 3-4, 5-6 150 MHz 1-2 5-6, 7-8 166 MHz 3-4 5-6, 7-8 CPU Voltage * CPU Voltage JP11 3.45V 1-2 * 3.
Jumper and Connector Summary Flash ROM Type Flash ROM Type JP1301 JP1302 5V 1-2 * 1-2 * 2-3 2-3 12V Super I/O Controller Super I/O Controller JP8 SMC665 Enabled Disabled 1-2 2-3 SMC669 Enabled Disabled 1-2 2-3 ECP DMA Channel Super I/O Controller SMC665 ECP/DMA Channel JP6 JP7 DRQ3/DACK3 1-2 * 1-2 * DRQ1/DACK1 2-3 2-3 Open Open SMC669 Autoconfigured CMOS Function * Normal 1-2 * Clear CMOS 2-3 Default setting A-2 JP5
Jumper and Connector Summary PS/2 Mouse Function JP4 Enabled Closed * Disabled Open Keyboard Clock Clock JP1401 ISA clock 1-2 * 12 MHz 3-4 Onboard Connectors Connector * Function CN1 PS/2 keyboard (optional) CN2 AT keyboard CN3 Power CN4 PS/2 mouse header CN6 COM2 CN7 COM1 CN8 FDC CN9 Printer/Parallel CN10 IDE1 CN11 IDE2 CN12 HDD LED CN13 VRM (optional) CN14 IR (optional) CN15 Fan CN16 Multifunction Default setting A-3
