586IVX Rev.
FCC Statement on Class B This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.
Table of Contents Chapter 1: Introduction ............................................................ 5 Features and Specifications .................................................. 6 Package Checklist .............................................................. 8 Chapter 2: Hardware Installation ............................................... 9 Preparing the Area.............................................................. 9 Handling the System Board ..................................................
Save & Exit Setup ........................................................53 Exit Without Saving.......................................................54 Desktop Management Interface (DMI) ....................................56 System Error Report ..........................................................54 IDE Device Drivers .............................................................56 Chapter 4: Troubleshooting Checklist ............................................. 57 Appendix A: Types of Modules .....
Chapter 1 Introduction The 586IVX is a Pentium processor-class system board supporting Intel Pentium Processor with MMX Technology and Intel Pentium processors running at 75MHz, 90MHz, 100MHz, 120MHz, 133MHz, 150MHz, 166MHz and 200MHz frequencies. The 586IVX also supports Cyrix 6x86™ P120+/P133+/P150+/P166+ and AMD-K5 PR75/PR90/ PR100/PR120/PR133/PR166 processors. The 586IVX system board can support 8MB to 128MB of system memory. It is equipped with 4 SIMM sockets using EDO or fast page mode x32 DRAM.
Features and Specifications Processor • Intel Pentium Processor with MMX Technology - 166/200 • Intel Pentium 75/90/100/120/133/150/166/200MHz • Future Pentium OverDrive processor • Cyrix 6x86™ P120+/P133+/P150+/P166+ • AMD-K5 PR75/PR90/PR100/PR120/PR133/PR166 Chipset • Intel 82430VX PCIset Cache Memory • 256KB pipeline burst, direct map write-back cache installed on the system board System Memory • 8MB to 128MB memory • Four 72-pin SIMM sockets using EDO or fast page mode x32 DRAM, 60/70ns, 5V BIOS •
• Soft Power supported PCI IDE Interface • PIO Mode 3 and Mode 4 Enhanced IDE (data transfer rate up to 16.6MB/sec.) • DMA Mode 2 Bus Master IDE (data transfer rate up to 22.2MB/sec.) • Bus mastering reduces CPU utilization during disk transfer • ATAPI IDE CD-ROM supported Integrated I/O • Two NS16C550A-compatible high speed UARTs • One SPP/ECP/EPP parallel port • Supports 360KB, 720KB, 1.2MB, 1.44MB, and 2.
Package Checklist The 586IVX package contains the following items: • • • • • • The 586IVX system board The 586IVX user’s manual One 40-pin IDE hard disk cable One 34-pin floppy disk drive cable One IDE driver diskette Five spare jumpers If any of these items are missing or damaged, please contact your dealer or sales representative for assistance.
Chapter 2 Hardware Installation This chapter summarizes the steps to install the 586IVX system board into your system unit. It also includes a description of the area in which you must work and directions for memory installation. Before installing the system board, obtain the memory you plan to install. Refer to the System Memory section for the number and type of memory modules needed for the amount of memory you require.
Static Electricity Precautions 1. To prevent electrostatic build-up, leave the board in its anti-static bag until you are ready to install it. 2. Wear an antistatic wrist strap. 3. Do all preparation work on a static-free surface with the system board components facing up. 4. Hold the system board by its edges only. Be careful not to touch any of the components, contacts or connections, especially gold contacts, on the board. 5. Avoid touching the pins or contacts on all modules and connectors.
2. Remove the system unit cover. Refer to the manufacturer’s instructions if necessary. 3. Detach all connectors from the old system board and remove expansion cards seated in any expansion slots. 4. Loosen the screws holding the original system board and remove the board from the system. Save the screws. 5. Remove the 586IVX from its original packing box. Be careful to avoid touching all connectors and pins on the board.
Board Layout PL1 ATX Power Connector J9 SM4 Bank 1 JP11 SM3 Battery JP12 Bank 0 JP10 J13 SM2 Regulator JP1 SM1 3 4 JP2 JP14 82438VX 6 5 U29 J8 J3 J10 J11 J12 PCI Slot 1 SRAM U11 SRAM U17 PCI Slot 2 PCI Slot 3 PCI Slot 4 ISA Slot 1 82371SB 82437VX Ta g S R A M ISA Slot 2 ISA Slot 3 ISA Slot 4 CN8 J2 CN1 J4 CN7 CN5 CN6 square denotes pin 1 12 Primary IDE 1 2 JP13 JP5 12 I/O chip 82438VX JP3 Floppy JP4 34 Pin 1 Socket 7 Regulator 6 5 6 5 JP7 Secondary IDE 2 1 2 1
Jumpers JP2-JP5, JP7, JP10-JP12 Intel, Cyrix and AMD processors JP1 - CMOS clear JP13 - Password clear Refer to Sockets SM1 to SM4 - SIMM sockets U29 - ZIF socket Refer to Expansion slots PCI Slots 1, 2, 3, 4 - 32-bit PCI slots ISA Slots 1, 2, 3, 4 - 16-bit ISA slots Refer to page 31 page 31 pages 18-20 page 24 page 25 pages 14-15 pages 21-23 Connectors - refer to pages 69-72 J2 J4 J8 J9 J10 J11 J12 J13 - USB 1 port - USB 2 port - IrDA connector - Fan connector - FDD connector - Primary IDE HDD con
System Memory The 586IVX system board supports One kinds of memory modules: SIMM. , which uses DRAM. Refer to page 12 for the locations of the nd SIM sockets. SIMM The SIMM (Single In-line Memory Module) sockets are divided into two banks on the system board, Bank 0 and Bank 1. Each bank consists of 2 SIMM sockets. You will need either 2 or 4 pieces of SIM modules, depending on the amount of memory you intend to install. The system board will not work if you install 1 or 3 pieces.
The table below summarizes the bank locations and modules needed for the corresponding memory sizes.
Installing a SIM Module A SIM module simply snaps into a socket on the system board. Pin 1 of the SIM module must correspond with Pin 1 of the socket. notch key 1. Position the SIMM above the socket with the “notch”in the module aligned with the “key”on the socket. 2. Seat the module at a 45° angle into the bank. Make sure it is completely seated. Tilt the module upright until it locks in place in the socket.
CPU Installation The 586IVX allows for easy installation of CPUs. Make sure all jumpers are set correctly before applying power or you may damage the CPU or system board. Use a needle-nosed plier to move the jumpers if necessary. Jumpers JP10, JP11 and JP12 are used to set the external bus clock of your processor. Refer to the following pages for the external bus clock that corresponds to your processor and set these jumpers accordingly.
Jumper Settings for Intel Processors JP10 J P 11 JP12 JP2 JP7 JP3 JP4 JP5 Intel Processors Ext. Bus CLK JP10 JP11 JP12 JP11 75MHz 50MHz 1-2 On 1-2 On 1-2 On 90/120/150MHz 60MHz 1-2 On 2-3 On 1-2 On 100/133/166/200MHz 66MHz 1-2 On 1-2 On 2-3 On Intel Processors 75/90/100MHz 120/133MHz 150/166MHz 200MHz Voltages 2.7V 2.8V 2.9V 3.3V* (VR/STD) 3.5V (VRE) JP2 1-3, 2-4 On 1-3, 2-4 On 1-3, 2-4 On 3-5, 4-6 On Freq. Ratio 1.5x 2x 2.
Jumper Settings for Cyrix 6x86 Processors JP10 J P 11 JP12 JP2 JP7 JP3 JP4 JP5 JP10 JP11 Cyrix CPUs Ext. Bus CLK P120+ 50MHz 1-2 On 1-2 On 1-2 On P133+ 55MHz 2-3 On 1-2 On 1-2 On P150+ 60MHz 1-2 On 2-3 On 1-2 On P166+ 66MHz 1-2 On 1-2 On 2-3 On Cyrix CPUs Voltages 2.7V 2.8V 2.9V 3.3V* (VR/STD) 3.5V (VRE) JP11 JP5 Freq.
Jumper Settings for AMD-K5 Processors JP10 J P 11 JP12 JP2 JP7 JP3 JP4 JP5 P-Rating Ext. Bus CLK JP10 JP11 JP12 PR75 50MHz 1-2 On 1-2 On 1-2 On PR90/PR120 60MHz 1-2 On 3-4 On 1-2 On PR100/PR133/PR166 66MHz 1-2 On 1-2 On 3-4 On P-Rating Freq. Ratio JP5 PR75/PR90/PR100/ PR120/PR133 1.5x 1-3 On, 2-4 On PR166 1.75x 3-5 On, 4-6 On Voltages 2.7V 2.8V 2.9V 3.3V* (VR/STD) 3.
Installing Upgrade CPUs The 586IVX is equipped with a 321-pin Zero Insertion Force (ZIF) socket at location U29 of the system board. Refer to page 12 for the location of the ZIF socket. This socket is designed for easy removal of an old CPU and easy insertion of an upgrade CPU. The ZIF socket allows you to carefully place the new CPU into its position. If you need to apply excessive force to insert the CPU, you are not installing the CPU correctly.
amount of sideways force to free the handle from its retaining “tab”. Once clear of the “tab”, the handle will open relatively easily. The top plate will slide back. Do not use screwdrivers or other tools to open the socket, or you may damage the system or socket. Handle Lifting the Handle 2. Once the lever is completely up, remove the old CPU carefully by lifting it straight out of the socket. You are now ready to insert the new CPU. Pin 1 3. Position the CPU above the ZIF socket.
Pin 1 Positioning the CPU Above the ZIF Socket 4. Push the handle down until the handle locks into place. The top plate will slide forward. You will feel some resistance as pressure starts to secure the CPU in the socket. This is normal and will not damage the CPU. However, if the handle is not completely closed, damage to the CPU and/or system board may result. Installing A Fan/Heatsink You must choose a fan/heatsink suitable for the processor installed on your system board.
least 3 of 4 sides of the processor and heatsink must be at least 0.2 inches. All cables (for floppy drive, hard drive, CD-ROM, etc.) must be routed clear of the CPU and its airspace. Fan Exhaust The CPU must be kept cool by using a fan with heatsink. The temperature of the air entering the fan/heatsink cannot exceed 45oC (113oF). The ambient or room temperature must be below 37oC (99oF).
Jumper Settings for Password Clear Jumper JP13 Password Clear If you set a password in the “Password Setting”option and forget your password, power off your system and set Jumper JP13 to On. Power on your system. After you boot up an operating system, turn your system off again. This will clear the password stored in your CMOS. Set JP13 back to its default setting, Off.
Serial Ports The 586IVX is equipped with two serial ports at locations CN5 (COM 2) and CN6 (COM 1) of the system board. These built-in serial ports are RS-232C asynchronous communication ports with 16C550A-compatible UARTs that can be used with modems, serial printers, remote display terminals, and other serial devices. Parallel Port The 586IVX system board has a standard printer port (CN7) for interfacing your PC to a parallel printer. It supports SPP, ECP and EPP modes.
Floppy Disk Drive Controller The 586IVX system board is equipped with a shrouded floppy disk header that supports two standard floppy disk drives. You can install any 360KB, 720KB, 1.2MB, 1.44MB, or 2.88MB floppy disk drives. To prevent improper floppy cable installation, the shrouded floppy disk header has a keying mechanism. The 34-pin connector on the floppy cable can be placed into the header only if pin 1 of the connector is aligned with pin 1 of the header. Connecting the Floppy Disk Cable 1.
Header Note: An IDE cable with a standard 40-pin connector (without the keying mechanism) can be installed in the shrouded PCI IDE header. Be extremely careful to match the colored edge of the ribbon with pin 1 of the header. Connecting the Hard Disk Cable 1. If you are connecting two hard drives, install the 40-pin connector of the IDE cable into the primary shrouded IDE header (connector J11).
We recommend that you use Enhanced IDE hard drives from the same manufacturer. In a few cases, drives from two different manufacturers will not function properly when used together. The problem lies in the hard drives, not the 586IVX system board. Preparing an IDE Drive for Use IDE disk drives are already low-level formatted, with any bad-track errors entered, when shipped by the drive manufacturer. Do not attempt to do a low-level format or you may cause serious damage to the drive.
Installing Expansion Cards The 586IVX system board is equipped with 3 dedicated PCI slots, 3 dedicated 16-bit ISA slots and 1 shared PCI/ISA slot. All PCI slots are bus masters. Refer to page 12 for the locations of the expansion slots.
Chapter 3 Software Installation After you power up your system, the BIOS message appears on your screen and the memory count begins. After the memory test, the following message will appear on the screen: Press DEL to enter setup If the message disappears before you respond, restart your system or press the “Reset”button located on the front panel of your computer. You may also restart the system by pressing the and keys simultaneously.
ROM PCI/ISA BIOS CMOS SETUP UTILITY AWARD SOFTWARE, INC. STANDARD CMOS SETUP BIOS FEATURES SETUP CHIPSET FEATURES SETUP POWER MANAGEMENT SETUP PNP/PCI CONFIGURATION LOAD BIOS DEFAULTS LOAD SETUP DEFAULTS ESC F10 INTEGRATED PERIPHERALS SUPERVISOR PASSWORD USER PASSWORD IDE HDD AUTO DETECTION HDD LOW LEVEL FORMAT SAVE & EXIT SETUP EXIT WITHOUT SAVING ↑↓→ ← (Shift) F2 :Quit :Sve & Exit Setup :Select Item :Change Color Time, Date, Hard Disk Type...
Date The date format is , , , . Day Displays a day, from Sunday to Saturday Month Displays the month, from January to December Date Displays the date, from 1 to 31 Year Displays the year, from 1900 to 2099 Time The time format is , , . The time is based on the 24-hour military-time clock. For example, 1 p.m. is 13:00:00.
If the controller of the HDD interface is ESDI, you must select “Type 1”. If the controller of the HDD interface is SCSI, you must select “None”. If you select Type “Auto”, the BIOS will auto-detect the HDD & CD-ROM drive at the POST stage and show the IDE for the HDD & CD-ROM drive.
Video This category selects the type of video adapter used for the primary system monitor. Although secondary monitors are supported, you do not have to select the type in Setup. The default setting is EGA/VGA (BIOS default, Setup default). EGA/VGA Enhanced Graphics Adapter/Video Graphics Array. For EGA, VGA, SVGA and PGA monitor adapters. CGA 40 Color Graphics Adapter. Power up in 40-column mode. CGA 80 Color Graphics Adapter. Power up in 80-column mode. Mono Monochrome adapter.
Base Memory This refers to the amount of base or conventional memory installed on the system board. Extended Memory This is the amount of memory located above 1MB in the memory address map of the CPU. Other Memory This memory size refers to the memory located in the address space between 640K and 1024K. DOS uses this area to load device drivers to keep base memory free for application programs. The most appropriate use of this area is for Shadow RAM.
! WARNING ! Disk boot sector is to be modified Type “Y”to accept write or “N”to abort write Award Software, Inc. After seeing this message, if necessary, you will be able to run an antivirus program to locate and remove the problem before any damage is done. Many disk diagnostic programs which attempt to access the boot sector table will cause the warning message to appear. If you are running such a program, we recommend that you first disable this category.
Boot Sequence This category determines which drive to search first for the disk operating system (i.e. DOS). The default is A, C. A, C The system will first search for a floppy drive and then a hard disk drive. C, A The system will first search for a hard disk drive and then a floppy drive. CDROM, C, A The system will first search for a CD-ROM drive, then a hard disk drive and then a floppy drive.
Boot Up NumLock Status This allows you to determine the default state of the numeric keypad. By default, the system boots up with NumLock on. On The function of the numeric keypad is the number keys. Off The function of the numeric keypad is the arrow keys. Security Option This category allows you to limit access to your system and Setup or just to Setup. System The system will not boot and access to Setup will be denied if the correct password is not entered at the prompt.
Enabled Video shadow is enabled. Disabled Video shadow is disabled. C8000-CBFFF Shadow to DC000-DFFFF Shadow These categories determine whether option ROMs will be copied to RAM. Enabled Optional shadow is enabled. Disabled Optional shadow is disabled. Chipset Features Setup This section gives you instructions on how to configure the system based on the specific features of the chipset. The chipset manages bus speeds and access to system memory resources such as DRAM and external cache.
Power Management Setup Power Management Setup allows you to configure your system to most effectively save energy. If you like to use the soft power down feature of Windows 95, you must enable the Power Management below. Select Min. Power, Max. Power or User Defined. Either one can be used as long as it is NOT disabled. ROM PCI/ISA BIOS POWER MANAGEMENT SETUP AWARD SOFTWARE, INC.
PM Control by APM Yes An Advanced Power Management device will be activated to enhance the Max. Power Saving mode and stop the CPU’s internal clock. Use this option in Windows 95. (default) No The system BIOS will ignore APM when initiating the Power Management mode. Video Off Method This determines the manner in which the monitor is blanked. V/H SYNC + Blank This selection will cause the system to turn off the vertical and horizontal synchronization ports and write blanks to the video buffer.
HDD Power Down This is used to define the continuous HDD idle time that elapses before the HDD enters the power saving mode (motor off). When enabled and after the set time of system inactivity, the hard disk drive will be powered down while all other devices remain active. IRQ3-IRQ15 (Wake Up Events in Doze & Standby and Power Down & Resume Events) These are I/O events whose occurrence can prevent the system from entering a power saving mode or can awaken the system from such a mode.
Resources Controlled By The Award Plug and Play BIOS has the capacity to automatically configure all of the boot and Plug and Play compatible devices. Auto The system will automatically detect the settings for you. The categories that follow will not be shown on the PNP/PCI Configuration screen. Manual This allows you to set the IRQ/DMA (you have assigned your add-in card) to Legacy ISA or PCI/ISA PnP. For non-PnP ISA cards, select Legacy ISA. For PnP ISA or PCI cards, select PCI/ISA PnP.
Primary IDE INT# and Secondary IDE INT# The Primary and Secondary IDE INT# categories are used to select the PCI interrupt (A, B, C, or D) that is associated with the connected hard drives. Load BIOS Defaults The “Load BIOS Defaults”option loads the troubleshooting default values permanently stored in the ROM chips. These settings are not optimal and turn off all high performance features. You should use these values only if you have hardware problems.
Integrated Peripherals ROM PCI/ISA BIOS INTEGRATED PERIPHERALS AWARD SOFTWARE, INC.
PCI Slot IDE 2nd Channel This allows you to designate an IDE controller card inserted into one of the PCI slots as your secondary IDE controller. Enabled The IDE controller card is designated as the secondary IDE controller. Disabled No IDE controller card occupying any of the PCI slots. Onboard FDD Controller Enabled Enables the onboard floppy disk controller. Disabled Disables the onboard floppy disk controller.
Standard Uses the COM 2 serial port. HPSIR HP mode IrDA. ASKIR SHARP mode IrDA. Onboard Parallel Port 378H/IRQ7 Selects the I/O address and IRQ for the onboard parallel port. 3BCH/IRQ7 278H/IRQ5 Disabled Disables the onboard parallel port. Parallel Port Mode SPP EPP/SPP ECP ECP/EPP Selects the parallel port mode according to the type of printer device connected to your onboard parallel port. USB Controller By default, the USB controller is Disabled.
Type in the password. You are limited to eight characters. When done, the message below will appear: Confirm Password: You are being asked to verify the password. Type in exactly the same password. If you type in a wrong password, you will be prompted to enter the correct password again. To delete or disable the password function, highlight “Supervisor Password”and press , instead of typing in a new password. Press the key to return to the main menu.
ROM PCI/ISA BIOS CMOS SETUP UTILITY AWARD SOFTWARE, INC. HARD DISKS TYPE SIZE CYLS HEAD RECOMP LANDZ SECTOR MODE Primary Master: Select Primary Master Option (N=Skip): N OPTIONS SIZE CYLS 2 (Y) 1 3 853 853 853 827 1654 827 HEAD 32 16 32 RECOMP 0 65535 65536 LANDZ SECTOR MODE 1653 1653 1653 63 63 63 LBA Normal Large Note: Some OS (like SCO-UNIX) must be “NORMAL” for installation ESC: Skip Enter your choice, and press to accept the parameters or press to abort.
If you set your HDD to Normal mode, the maximum accessible HDD will be 528 megabytes even though the physical size of the HDD may be greater than that. LBA (Logical Block Addressing) Mode LBA mode is a HDD accessing method to overcome the 528 megabyte limitation. The number of cylinders, heads and sectors shown on the screen may not be the actual number for the HDD.
Maximum HDD size: no. Cylinders x no. Heads x no. Sectors x bytes per sector (1024) ( 32) ( 63) ( 512) 1 gigabyte Note: To support LBA or Large mode, address translation software is included in the Award BIOS HDD Service Routine (INT13h). If you are running an operating system that bypasses the BIOS INT13 Service Routine, LBA and Large Mode may fail. HDD Low Level Format The HDD Low Level Format utility is designed as a tool to save you time formatting your hard disk.
Save & Exit Setup When all the changes have been made, highlight “Save & Exit Setup” and press . The message below will appear: Save to CMOS and Exit (Y/N)? N Type “Y”and press . The modifications you have made will be written into the CMOS memory, and the system will reboot. You will once again see the initial diagnostics on the screen. If you wish to make additional changes to the setup, press simultaneously or after memory testing is done.
Play BIOS. Additional information, such as ISA based peripherals, which may not be automatically detected, can be manually recorded in the DMI pool by using the Add DMI menu. The DMI pool data is then verified or updated whenever the system hardware or setup is altered. Running the DMI Utility To run the DMI utility, type: DMICFG.EXE. You can download this utility from http://www.dfi.com.tw - BIOS & DRIVERS section or ftp.dfiusa.com /pub/DMI directory.
Edit DMI 1. Use the ← or → arrow keys to select the Edit DMI menu. 2. Highlight the item on the left screen that you would like to edit by using the ↑ or ↓ arrow keys, then press . 3. The cursor will move to the screen you select allowing you to edit information. The screen will also display the auto-detected information. 4. Press to update the edited information into the flash ROM. Add DMI 1. Use the ← or → arrow keys to select the Add DMI menu. 2.
4. The following message will appear. Do you want to execute? (Y/N) Type . All previous DMI structures will be destroyed and the new file will be saved into the flash ROM. Save DMI File 1. Use the ← or → arrow keys to select the Save DMI File menu. 2. The following message will appear. Press [Enter] to select DMI file for save Press . 3. Enter the directory and filename under which you would like the DMI file saved.
Error Messages One or more of the following messages may be displayed if the BIOS detects an error during the POST. This list indicates the error messages for all Awards BIOSes: CMOS BATTERY HAS FAILED The CMOS battery is no longer functional. It should be replaced. CMOS CHECKSUM ERROR Checksum of CMOS is incorrect. This can indicate that CMOS has become corrupt. This error may have been caused by a weak battery. Check the battery and replace if necessary.
Hard Disk(s) fail (08) Sector Verify failed. Keyboard is locked out - Unlock the key The BIOS detects that the keyboard is locked. Keyboard controller is pulled low. Keyboard error or no keyboard present Cannot initialize the keyboard. Make sure the keyboard is attached correctly and no keys are being pressed during the boot. Manufacturing POST loop System will repeat POST procedure infinitely while the keyboard controller is pull low. This is also used for the M/B burn in test at the factory.
Chapter 4 Troubleshooting Checklist This chapter of the manual is designed to help you with problems that you may encounter with your personal computer. To efficiently troubleshoot your system, treat each problem individually. This is to ensure an accurate diagnosis of the problem in case a problem has multiple causes. Some of the most common things to check when you encounter problems while using your system are listed below. 1. The power switch of each peripheral device is turned on. 2.
Hard Drive Hard disk failure. 1. Make sure the correct drive type for the hard disk drive has been entered in the BIOS. 2. If the system is configured with two hard drives, make sure the bootable (first) hard drive is configured as Master and the second hard drive is configured as Slave. Excessively long formatting period. 1. If your hard drive takes an excessively long period of time to format, it is likely a cable connection problem. Parallel Port The parallel printer doesn’trespond when you try to print.
3. Verify that the attached serial device works by attaching it to a serial port that is working and configured correctly. If the serial device does not work, either the cable or the serial device has a problem. If the serial device works, the problem may be due to the onboard I/O or the address setting. 4. Make sure the COM port settings and I/O address are configured correctly. Keyboard Nothing happens when a key on the keyboard was pressed. 1. Make sure the keyboard is properly connected. 2.
Appendix A Types of Modules The following modules have been tested with this board. Most untested brands will work but a few may fail to do so.
Appendix B Memory and I/O Maps Memory Address Map Address Name Function 0000000 to 009FFFF 640KB System Board RAM System Board Memory 00A0000 to 00BFFFF 128KB Video Display Memory Reserved for Graphics Display Memory 00C0000 to 00E7FFF 160KB I/O Expansion ROM Reserved for ROM on I/O Adapter Card 00E8000 to 00FFFFF 96KB ROM on the System Board System Board BIOS 0100000 to 7FFFFFF Maximum Memory 128MB System Board Memory 63
I/O Address Map I/O Address Function 0000-001F DMA Controller 1, 8237A-5 0020-003F Interrupt Controller 1, 8259A, Master 0040-005F Timer, 8254-2 0060-006F 8742 (Keyboard Controller) 0070-007F Real-time Clock, NMI (Non-maskable Interrupt) Mask 0080-009F DMA Page Memory, 74LS612 00A0-00BF Interrupt Controller 2, 8259A 00C0-00DF DMA Controller 2, 8237A-5 00E8 Shadow RAM and Cache Control Bit 00F0 Clear Numeric Processor Extension Busy 00F1 Reset Numeric Processor Extension 00F8-00FF Nu
Appendix C Connectors Connectors J2 USB 1 connector J4 USB 2 connector J8 IrDA connector J9 Fan connector J10 Floppy disk drive connector J11 Primary IDE hard disk drive connector J12 Secondary IDE hard disk drive connector J13 ATX power LED HD LED Green LED ATX power switch Green switch Reset switch AT power LED/Keylock connector Speaker connector CN1 PS/2 keyboard port CN5 COM 2 serial port CN6 COM 1 serial port CN7 Parallel printer port 65
CN8 PS/2 mouse port CN9 Game port PL1 ATX power connector CN8 J2 CN1 J4 CN7 CN5 CN6 PL1 J9 J10 J13 J12 J11 J8 66
Pin Assignments J9 - Fan connector Pin Function 1 Ground 2 +12V 3 Ground J8 - Infrared connector Pin Function 1 IRTX 2 GND 3 IRRX 4 IRR3 5 VCC 67
J13 + 1 SPW-LED 2 (ATX power LED) Pin 1 Pin 2 +5V Ground + 1 HD-LED Pin 1 Pin 2 +5V Signal + 1 G-LED 2 (Green LED) Pin 1 Pin 2 +5V Signal 1 SP-SW 2 (ATX power switch) Pin 1 Pin 2 Signal Ground 1 G-SW 2 (Green switch) Pin 1 Pin 2 Signal Ground 1 RESET 2 (Reset switch) Pin 1 Pin 2 Signal Ground Pin 1 Pin 2 Pin 3 Pin 4 Signal N.C. Ground +5V Pin 1 Pin 2 Pin 3 Pin 4 Pin 5 +5V N.C.
