EP-3WXM EP-3WXM2 EP-3WXM4 A Celer on TM Soc ket 370 Pr ocessor Celeron Sock Processor based Intel 810 Chipset mainboar d (100/66MHz) mainboard TRADEMARK All products and company names are trademarks or registered trademarks of their respective holders. These specifications are subject to change without notice. Manual Revision 3.
EP-3WXM/2/4 User Notice No part of this product, including the product and software may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form without the express written permission of EPoX Computer Company (hereinafter referred to as EPoX) except for documentation kept by the purchaser for backup purposes.
EP-3WXM/2/4 Technical Support Services If you need additional information, help during installation or normal use of this product, please contact your retailer. Your retailer will have the most current information about your configuration. If your retailer cannot help, you may visit our online technical support website and/or contact our support technicians at the locations listed below. Record your serial number before installing your EP-3WXM/2/4 mainboard.
EP-3WXM/2/4 Table of Contents Page Section 1 Introduction Components Checklist ..............................................1-1 Overview Intel Celeron processors, the plastic pin grid array (P.P.G.A.) 370 .........................................................1-2 The plastic pin grid array (P.P.G.A.) 370 processor Installation and Removal .......................................... 1-3 Intel(R) 810 chipset features ....................................1-4 EP-3WXM/2/4 Form-Factor .......................
EP-3WXM/2/4 PC Health Status ......................................................4-21 Frequency/Voltage Control ....................................... 4-22 Defaults Menu .......................................................... 4-23 Supervisor/User Password Setting ...........................4-24 Exit Selecting ............................................................4-25 Section 5 810 VGA and Sound Driver Installation Easy Driver Installation ............................................
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EP-3WXM/2/4 Introduction Section 1 INTRODUCTION Components Checklist ü A. (1) EP-3WXM/2/4 mainboard ü B. (1) EP-3WXM/2/4 user’s manual ü C. (1) Floppy ribbon cable ü D. (1) ü ü or Hard driver ribbon cables Hard drive for UltraATA66/33 an 80 conductor cable(Optional) E. (1) RS-232 9-PIN ribbon cable F. (1) PS/2 to AT keyboard connector adapter (optional) G.
Introduction EP-3WXM/2/4 Overview Intel Celeron processors, the plastic pin grid array (P.P.G.A.) 370 The Intel Celeron processors provide power to handle the internet, educational programs, interactive 3D games, and productivity applications. The Intel Celeron processors at 466, 433, 400, 366, 333 and 300A MHz include integrated L2 cache 128Kbyte. The core for the 466, 433, 400, 366, 333 and 300A MHz processors have 19M transistors due to the addition of the integrated L2 cache 128Kbyte.
EP-3WXM/2/4 Introduction applications to achieve a new level of performance. Intel’s MMX technology is designed as a set of basic, general-purpose integer instructions that are easily applied to the needs of a wide diversity of multimedia and communications applications. The highlights of the technology are: * Single Instruction, Multiple Data (SIMD) technique * 57 new instructions * Eight 64-bit wide MMX technology registers * Four new data types The plastic pin grid array (P.P.G.A.
Introduction EP-3WXM/2/4 Removal: To simplify the following process, consider removing the motherboard from the chassis before removing the processor. First, unplug the fan power cable from the motherboard’s connector. Then pull the integrated clip away from the socket’s tab nearest the fan cable. (A small tool, such as a pen or screwdriver, may make this process easier.) Once the clip is free, slowly lift the fan heatsink straight up away from the socket and the processor.
EP-3WXM/2/4 Introduction The Accelerated Hub Architecture provides twice the bandwidth of the PCI bus at 266 MB per second. This allows a wider flow of rich information from the I/O controller to the memory controller, with optimized arbitration rules allowing more functions to run concurrently, enabling more life-like audio and video. The Integrated Audio-Codec 97 controller enables software audio and modem (AMR Riser Optional) by using the processor to run sound and modem software.
Introduction EP-3WXM/2/4 EP-3WXM/2/4 Form-Factor The EP-3WXM/2/4 is designed with Micro-ATX form factor - the new industry standard of chassis. The Micro-ATX form factor is essentially a Baby-AT baseboard rotated 90 degrees within the chassis enclosure and a new mounting configuration for the power supply. With these changes the processor is relocated away from the expansion slots, allowing them all to hold full length add-in cards.
EP-3WXM/2/4 Introduction I/O Shield Connector The EP-3WXM/2/4 is equipped with an I/O back panel. Please use the appropriate I/O shield (figure 3). Joystick/Midi parallel port PS/2 Mouse USB port PS/2 COM1 VGA1 Figure 3: I/O back panel layout Speaker Line_in MIC Power-On/Off (Remote) The EP-3WXM/2/4 has a single 20-pin connector for ATX power supplies. For ATX power supplies that support the Remote On/Off feature, this should be connected to the systems front panel for system Power On/Off button.
Introduction EP-3WXM/2/4 System Block Diagram Figure 5: System Block Diagram Page 1-8
EP-3WXM/2/4 Features Section 2 FEATURES EP-3WXM/2/4 Features: • EP-3WXM/2/4 is based on the Intel CeleronTM Processor operating at 300A ~ 466MHz (66MHz) or 100MHz FSB for feature processor on PPGA 370 socket. The board is configured by an Easy-Setting-Single-Jumper (E.S.S.J.) to match your CPU clock speed. • CPU clock ratio from 3x~8x setting in BIOS. • Designed with Intel’s 810 chipset. • Supports up to 512 MB of DRAM (minimum of 16 MB) on board, You can use 168-pin DIMM x 2.
Features EP-3WXM/2/4 • Includes a PS/2 mouse connector. • Allows use of a PS/2 keyboard. • Features Award Plug & Play BIOS. With 4MB(FWH) Flash Memory you can always upgrade to the current BIOS. • EP-3WXM/2/4 utilizes a Lithium battery which provides environmental protection and longer battery life. • Supports the Universal Serial Bus (USB) connector. The onboard ICH (82801) chip provides the means for connecting PC peripherals such as; keyboards, joysticks, speaker, and mouse.
EP-3WXM/2/4 Installation Section 3 INSTALLATION Page 3-1
Installation EP-3WXM/2/4 EP-3WXM/2/4 Detailed Layout Figure 1 Page 3-2
EP-3WXM/2/4 Installation Easy Installation Procedure Easy Installation Procedure The following must be completed before powering on your new system: 3-1. 3-2. 3-3. 3-4. Configure Jumpers to match your hardware System Memory Configuration Device Connectors External Modem Ring-in Power ON and Keyboard Power ON Functions (KBPO) Section 3-1 Configure Jumpers The EP-3WXM/2/4 designs all motherboards with the fewest jumpers to make your installation fast and easy.
Installation EP-3WXM/2/4 Section 3-2 System Memory Configuration Memory Layout The EP-3WXM/2/4 supports (2) 168-pin DIMMs (Dual In-line Memory Module). The DIMMs can be either EDO (Extended Data Out) or SDRAM (Synchronized DRAM). • 100MHz system memory bus frequency. Even if the system host bus is 66MHz. • 8MB to 256MB using 16MB/64MB technology (512MB using 128MB technology). • 256MB Support Registered synchronous DRAM Memory Modules. • We recommend to installed the “PC/100MHz SDRAM Spec.
EP-3WXM/2/4 Installation DIMM Module Installation Figure 3 displays the notch marks and what they should look like on your DIMM memory module. DIMMs have 168-pins and two notches that will match with the onboard DIMM socket. DIMM modules are installed by placing the chip firmly into the socket at a 90 degree angle and pressing straight down (figure 4) until it fits tightly into the DIMM socket (figure 5). LEFT KEY ZONE (UNBUFFERED) CENTER KEY ZONE (3.
Installation EP-3WXM/2/4 Figure 5 DIMM Module clip after installation To remove the DIMM module simply press down both of the white clips on either side and the module will be released from the socket.
EP-3WXM/2/4 Installation Section 3-3 Device Connectors Please install the motherboard into the chassis. Now that your motherboard is installed you are ready to connect all your connections (figure 6).
Installation EP-3WXM/2/4 Device Connectors (continued) (This is connected to the power button on the case. Using the SoftOff by Pwr-BTTN feature, you can choose either Instant Off (turns system off immediatly), or 4 sec delay (you need to hold the button down for 4 seconds before the system turns off). When the system is in 4 sec delay mode, there is a special feature to make the system to go into suspend mode when the button is pressed momentarily.
EP-3WXM/2/4 Installation Section 3-4 External Modem Ring-in Power ON and Keyboard Power ON Functions (KBPO) On the basis of bounded functions in I/O chipset, the two serial ports are able to support the External Modem Ring-in Power ON function. Once users connect the external modem to COM1 or COM2, the EP-3WXM/2/4 mainboard allows users to turn on their system through the remote and host's dial-up control.
Installation EP-3WXM/2/4 Notes: 1. Intel ATX version 2.0 specification has recommended you use the power supply with 1.0A in 5.0VSB. With our EP-3WXM/2/4 mainboard, the 5.0VSB standby power only has to be > = 0.1A (100mA) then you can enjoy this unique benefit. However, the ATX power supply which is < 0.1 (100mA) is still applicable to your system by placed JP13 at the position 2-3 to disable this feature. 2. We recommended you use the power supply with 1.0A in 5.0VSB. Because this supported PCI 2.
EP-3WXM/2/4 BIOS Section 4 BIOS SETUP Main Menu Once you enter the AwardBIOS™ CMOS Setup Utility, the Main Menu will appear on the screen. The Main Menu allows you to select from several setup functions and two exit choices. Use the arrow keys to select among the items and press to accept and enter the sub-menu.
BIOS EP-3WXM/2/4 Advanced BIOS Features Use this menu to set the Advanced Features available on your system. Advanced Chipset Features Use this menu to change the values in the chipset registers and optimize your system’s performance. Integrated Peripherals Use this menu to specify your settings for integrated peripherals. Power Management Setup Use this menu to specify your settings for power management. PnP / PCI Configuration This entry appears if your system supports PnP / PCI.
EP-3WXM/2/4 BIOS 4-1 Standard CMOS Setup The items in Standard CMOS Setup Menu are divided into 10 categories. Each category includes no, one or more than one setup items. Use the arrow keys to highlight the item and then use the or keys to select the value you want in each item. . Standard CMOS Features Date: Time: Ø Ø Ø Ø IDE IDE IDE IDE Primary Master Primary Slave Secondary Master Secondary Slave Mon, Feb 8 1999 16:19:20 2557 MB None None None Drive A None 1.44M, 3.5 in.
BIOS EP-3WXM/2/4 Main Menu Selections This table shows the selections that you can make on the Main Menu Item Options Month Time HH : MM : SS Options are in its sub menu (described in Table 3) Options are in its sub menu (described in Table 3) Options are in its sub menu (described in Table 3) Options are in its sub menu (described in Table 3) None 360K, 5.25 in 1.2M, 5.25 in 720K, 3.5 in 1.44M, 3.5 in 2.88M, 3.
EP-3WXM/2/4 BIOS IDE Adapters The IDE adapters control the hard disk drive. Use a separate sub menu to configure each hard disk drive. Figure 2 shows the IDE primary master sub menu.
BIOS EP-3WXM/2/4 Use the legend keys to navigate through this menu and exit to the main menu. Use Table 3 to configure the hard disk. Item Options Description IIDE HDD Auto-detection Press Enter IDE Primary Master None Auto Manual Capacity Auto Display your disk drive size Press Enter to auto-detect the HDD on this channel. If detection is successful, it fills the remaining fields on this menu. Selecting ‘manual’ lets you set the remaining fields on this screen. Selects the type of fixed disk.
EP-3WXM/2/4 BIOS 4-2 Advanced BIOS Features This section allows you to configure your system for basic operation. You have the opportunity to select the system’s default speed, boot-up sequence, keyboard operation, shadowing and security.
BIOS EP-3WXM/2/4 CPU Internal Cache/External Cache These two categories speed up memory access. However, it depends on CPU/chipset design. Enabled: Enable cache Disabled: Disable cache CPU L2 Cache ECC Checking This item allows you to enable/disable CPU L2 Cache ECC checking. The choice: Enabled, Disabled. Quick Power On Self Test This category speeds up Power On Self Test (POST) after you power up the computer. If it is set to Enable, BIOS will shorten or skip some check items during POST.
EP-3WXM/2/4 BIOS Typematic Rate Setting Key strokes repeat at a rate determined by the keyboard controller. When enabled, the typematic rate and typematic delay can be selected. The choice: Enabled/Disabled. Typematic Rate (Chars/Sec) Sets the number of times a second to repeat a key stroke when you hold the key down. The choice: 6, 8, 10, 12, 15, 20, 24, 30. Typematic Delay (Msec) Sets the delay time after the key is held down before it begins to repeat the keystroke. The choice: 250, 500, 750, 1000.
BIOS EP-3WXM/2/4 4-3 Advanced Chipset Features CMOS Setup Utility – Copyright © 1984 – 1998 Award Software Advanced Chipset Features SDRAM CAS Latency Time SDRAM Cycle Time Tras/Trc SDRAM RAS-to-CAS Delay SDRAM RAS Precharge Time System BIOS Cacheable 3 6/8 2 2 Enabled Item Help ___________________________________ Menu Level Ø Video BIOS Cacheable Enabled Memory Hole At 15M-16M Enabled Delay Transaction Disabled On-Chip Video Window Size 64MB * Onboard Display Cache Setting * CAS# Latency Paging Mode C
EP-3WXM/2/4 BIOS SDRAM CAS Latency Time When synchronous DRAM is installed, the number of clock cycles of CAS latency depends on the DRAM timing. The Choice: 2, 3 SDRAM Cycle Time Tras/Trc Select the number of SCLKs for an access cycle. The Choice: 5/7, 6/8. SDRAM RAS-to-CAS Delay This field lets you insert a timing delay between the CAS and RAS strobe signals, used when DRAM is written to, read from, or refreshed. Fast gives faster performance; and Slow gives more stable performance.
BIOS EP-3WXM/2/4 this area of system memory usually discusses their memory requirements. The Choice: Enabled, Disabled. Delay Transaction The chipset has an embedded 32-bit posted write buffer to support delay transactions cycles. Select Enabled to support compliance with PCI specification version 2.1. The Choice: Enabled, Disabled. On-Chip Video Window Size Select the on-chip video window size for VGA drive use. The Choice: 32MB, 64MB, Disabled.
EP-3WXM/2/4 BIOS 4-4 Integrated Peripherals CMOS Setup Utility – Copyright © 1984 – 1998 Award Software Integrated Peripherals OnChip Primary PCI IDE OnChip Secondary PCI IDE IDE Primary Master PIO IDE Primary Slave PIO IDE Secondary Master PIO IDE Secondary Slave PIO IDE Primary Master UDMA IDE Primary Slave UDMA IDE Secondary Master UDMA IDE Secondary Slave UDMA USB Controller USB Keyboard Support Init Display First AC97 Audio AC97 Modem IDE HDD Block Mode Onboard FDC Controller Onboard Serial Port 1 On
BIOS EP-3WXM/2/4 USB Controller Select Enabled if your system contains a Universal Serial Bus (USB) controller and you have USB peripherals. The choice: Enabled, Disabled. USB Keyboard Support Select Enabled if your system contains a Universal Serial Bus (USB) controller and you have a USB keyboard. The choice: Enabled, Disabled. Init Display First This item allows you to decide to active whether PCI Slot or on-chip VGA first The choice: PCI Slot, Onboard .
EP-3WXM/2/4 BIOS UART Mode Select This filed allows the users to configure what IR mode the 2nd serial port should use. The default is Normal. Optional: Normal, IrDA and ASKIR. Onboard Parallel port This field allows the user to configure the LPT port. The default is 378H / IRQ7. 378H: Enable Onboard LPT port and address is 378H and IRQ7. 278H: Enable Onboard LPT port and address is 278H and IRQ5. 3BCH: Enable Onboard LPT port and address is 3BCH and IRQ7. Disabled: Disable Onboard LPT port.
BIOS EP-3WXM/2/4 4-5 Power Management Setup The Power Management Setup allows you to configure you system to most effectively save energy while operating in a manner consistent with your own style of computer use.
EP-3WXM/2/4 BIOS There are four selections for Power Management, three of which have fixed mode settings. Disable (default) Min. Power Saving Max. Power Saving User Defined No power management. Disables all four modes Minimum power management. Doze Mode = 1 hr. Standby Mode = 1 hr., Suspend Mode = 1 hr., and HDD Power Down = 15 min. Maximum power management -- ONLY AVAILABLE FOR SL CPU’s. Doze Mode = 1 min., Standby Mode = 1 min., Suspend Mode = 1 min., and HDD Power Down = 1 min.
BIOS EP-3WXM/2/4 HDD Power Down When enabled and after the set time of system inactivity, the hard disk drive will be powered down while all other devices remain active. The choice: Enabled, Disabled. Soft-Off by PWRBTN Pressing the power button for more than 4 seconds forces the system to enter the Soft-Off state when the system has “hung.” The choice: Delay 4 Sec, Instant-Off. CPU THRM-Throttling Select the CPU THRM-Throttling rate. The choice: 25.0%, 37.5%, 50.0%, 62.5%, 75.0%, 87.5%.
EP-3WXM/2/4 BIOS 4-6 PnP/PCI Configuration Setup This section describes configuring the PCI bus system. PCI, or Personal Computer Interconnect, is a system which allows I/O devices to operate at speeds nearing the speed the CPU itself uses when communicating with its own special components. This section covers some very technical items and it is strongly recommended that only experienced users should make any changes to the default settings.
BIOS EP-3WXM/2/4 Resource controlled by The Award Plug and Play BIOS has the capacity to automatically configure all of the boot and Plug and Play compatible devices. However, this capability means absolutely nothing unless you are using a Plug and Play operating system such as WindowsÒ95. If you set this field to “manual” choose specific resources by going into each of the sub menu that follows this field (a sub menu is preceded by a “Ø”). The choice: Auto(ESCD), Manual.
EP-3WXM/2/4 BIOS PCI/VGA Palette Snoop Leave this field at Disabled. Choices are Enabled, Disabled. 4-7 PC Health Status CMOS Setup Utility – Copyright © 1984-1998 Award Software PC Health Status CPU Warning Temperature Current System Temperature Current System CPU1 Temperature :70J :38J :50J Current CPUFAN1 Speed Current PWRFAN Speed Current ChassisFAN Speed Vcore Vtt Vio +5V +12V -12V -5V :0 :0 :0 :2.00V :1.50V :3.36V :5.16V :12.28V :11.90V :5.
BIOS EP-3WXM/2/4 4-8 Frequency/Voltage Control CMOS Setup Utility – Copyright © 1984-1998 Award Software Frequency/Voltage Control Auto Detect DIMM/PCI CMK Spread Spectrum Modulated CPU Speed CPU Ratio CPU Frequency Enabled Disabled 266Mhz(66x4) X 3 66 MHz Item Help ------------------------Menu Level Ø ¯¬® Move Enter: Select +/-/PU/PD: Value F10:Save ESC: Exit F1:General Help F5:Previous Values F6:Fail-safe defaults F7:Optimized Defaults Auto Detect This item allows you to enable/disable auto detect
EP-3WXM/2/4 BIOS 4-9 Defaults Menu Selecting “Defaults” from the main menu shows you two options which are described below Load Fail-Safe Defaults When you press on this item you get a confirmation dialog box with a message similar to: Load Fail-Safe Defaults (Y/N) ? N Pressing ‘Y’ loads the BIOS default values for the most stable, minimal-performance system operations.
BIOS EP-3WXM/2/4 4-10 Supervisor/User Password Setting You can set either supervisor or user password, or both of then. The differences between are: supervisor password : can enter and change the options of the setup menus. user password : just can only enter but do not have the right to change the options of the setup menus. When you select this function, the following message will appear at the center of the screen to assist you in creating a password.
EP-3WXM/2/4 BIOS 4-11 Exit Selecting Save & Exit Setup Pressing on this item asks for confirmation: Save to CMOS and EXIT (Y/N)? Y Pressing “Y” stores the selections made in the menus in CMOS – a special section of memory that stays on after you turn your system off. The next time you boot your computer, the BIOS configures your system according to the Setup selections stored in CMOS. After saving the values the system is restarted again.
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EP-3WXM/2/4 Drivers Installation Section 5 810 VGA and Sound Driver Installation Easy Driver Installation Step 1 : To Click the Intel 810 and 820 Chipset INF Files that enable the Intel(R) 810 Chipsets to be recognized by listed operating systems. This installer will unpack updated .INF files into a specified folder. Supported operating systems: Microsoft Windows* 95 OSR 2.1+ and Windows* 98 operating systems. Step 2 : To Click the Intel 810 and 820 INF Installation Utility.
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Appendix EP-3WXM/2/4 Appendix A A-1 MEMORY MAP Address Range [00000-7FFFF] [80000-9FBFF] [9FC00-9FFFF] Size 512K 127K 1K [A0000-C7FFF] [C8000-DFFFF] 160K 96K [E0000-EEFFF] [EF000-EFFFF] 60K 4K [F0000-F7FFF] [F8000-FCFFF] [FD000-FDFFF] [FE000-FFFFF] 32K 20K 4K 8K Description Conventional memory Extended Conventional memory Extended BIOS data area if PS/2 mouse is installed Available for Hi DOS memory Available for Hi DOS memory and adapter ROMs Available for UMB Video service routine for Monochrome
Appendix [2F8-2FF] [360-36F] [378-37F] [3B0-3BF] [3C0-3CF] [3D0-3DF] [3F0-3F7] [3F8-3FF] EP-3WXM/2/4 SERIAL port 2. NETWORK ports. PARALLEL port 1. MONOCHROME & PARALLEL port adapter. EGA adapter. CGA adapter. FLOPPY DISK controller. SERIAL port 1. A-3 TIMER & DMA CHANNELS MAP TIMER MAP: TIMER Channel 0 TIMER Channel 1 TIMER Channel 2 DMA CHANNELS: DMA Channel 0 DMA Channel 1 DMA Channel 2 DMA Channel 3 DMA Channel 4 DMA Channel 5 DMA Channel 6 DMA Channel 7 System timer interrupt. DRAM REFRESH request.
EP-3WXM/2/4 6 7 8 9 10 11 12 13 14 15 Appendix FLOPPY DISK (SMC CHIP). PARALLEL port 1. RTC clock. Available. Available. Available. PS/2 Mouse. MATH coprocessor. Onboard HARD DISK (IDE1) channel. Onboard HARD DISK (IDE1) channel. A-5 RTC & CMOS RAM MAP RTC & CMOS: 00 Seconds. 01 Second alarm. 02 Minutes. 03 Minutes alarm. 04 Hours. 05 Hours alarm. 06 Day of week. 07 Day of month. 08 Month. 09 Year. 0A Status register A. 0B Status register B. 0C Status register C. 0D Status register D.
Appendix 16 17 18 19-2d 2E-2F 30 31 32 33 34-3F 40-7F A-4 EP-3WXM/2/4 Base memory high byte. Extension memory low byte. Extension memory high byte. Reserved for extension memory low byte. Reserved for extension memory high byte. DATE CENTURY byte. INFORMATION FLAG. Reserve. Reserved for CHIPSET SETTING DATA.
Appendix EP-3WXM/2/4 Appendix B B-1 POST CODES For BIOS 6.0 Code POST (hex) CFh C0h C1h C3h C5h 0h1 02h 03h 04h 05h 06h 07h 08h 09h 0Ah DESCRIPTION Test CMOS R/W functionality. Early chipset initialization: - Disable shadow RAM - Disable L2 cache (socket 7 or below) - Program basic chipset registers Detect memory - Auto-detection of DRAM size, type and ECC.
Appendix 0Ch 0Dh 0Eh 0Fh 10h 11h 12h 13h 14h 15h 16h 17h 18h 19h 1Ah 1Bh 1Ch 1Dh 1Eh 1Fh 20h 21h 22h 23h A-6 EP-3WXM/2/4 3. Reset keyboard for Winbond 977 series Super I/O chips. Reserved Reserved Test F000h segment shadow to see whether it is R/Wable or not. If test fails, keep beeping the speaker. Reserved Auto detect flash type to load appropriate flash R/W codes into the run time area in F000 for ESCD & DMI support. Reserved Use walking 1’s algorithm to check out interface in CMOS circuitry.
EP-3WXM/2/4 24h 25h 26h 27h 28h 29h 2Ah 2Bh 2Ch 2Dh 2Eh 2Fh 30h 31h 32h 33h Appendix checksum fails, use default value instead. 3. Prepare BIOS resource map for PCI & PnP use. If ESCD is valid, take into consideration of the ESCD’s legacy information. 4. Onboard clock generator initialization. Disable respective clock resource to empty PCI & DIMM slots. 5.
Appendix 34h 35h 36h 37h 38h 39h 3Ah 3Bh 3Ch 3Dh 3Eh 3Fh 40h 41h 42h 43h 44h 45h 46h 47h 48h 49h 4Ah 4Bh 4Ch 4Dh 4Eh 4Fh 50h A-8 EP-3WXM/2/4 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Test 8254 Reserved Test 8259 interrupt mask bits for channel 1. Reserved Test 8259 interrupt mask bits for channel 2. Reserved Reserved Test 8259 functionality. Reserved Reserved Reserved Initialize EISA slot Reserved 1. Calculate total memory by testing the last double word of each 64K page. 2.
EP-3WXM/2/4 51h 52h 53h 54h 55h 56h 57h 58h 59h 5Ah 5Bh 5Ch 5Dh 5Eh 5Fh 60h 61h 62h 63h 64h 65h 66h 67h 68h 69h 6Ah 6Bh 6Ch Appendix Reserved Test all memory (clear all extended memory to 0) Reserved Reserved Display number of processors (multi-processor platform) Reserved 1. Display PnP logo 2. Early ISA PnP initialization - Assign CSN to every ISA PnP device. Reserved Initialize the combined Trend Anti-Virus code. Reserved (Optional Feature) Show message for entering AWDFLASH.
Appendix 6Dh 6Eh 6Fh 70h 71h 72h 73h 74h 75h 76h 77h 78h 79h 7Ah 7Bh 7Ch 7Dh 7Eh 7Fh 80h 81h EP-3WXM/2/4 1. Assign resources to all ISA PnP devices. 2. Auto assign ports to onboard COM ports if the corresponding item in Setup is set to “AUTO”. Reserved 1. Initialize floppy controller 2. Set up floppy related fields in 40:hardware. Reserved Reserved Reserved (Optional Feature) Enter AWDFLASH.EXE if : - AWDFLASH is found in floppy drive.
EP-3WXM/2/4 83h 84h 85h 86h 87h 88h 89h 90h 91h 92h 93h 94h 95h 96h FFh Appendix 3. If password is set, ask for password. Save all data in stack back to CMOS Initialize ISA PnP boot devices 1. USB final Initialization 2. NET PC: Build SYSID structure 3. Switch screen back to text mode 4. Set up ACPI table at top of memory. 5. Invoke ISA adapter ROMs 6. Assign IRQs to PCI devices 7. Initialize APM 8. Clear noise of IRQs.
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Appendix EP-3WXM/2/4 Appendix C NOTE: The "LOAD Optimized DEFAULTS" function loads the system default data directly from ROM and initializes the associated hardware properly. This function will be necessary when you accept this mainboard, or the system CMOS data is corrupted.
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