SL 486YB
INTRODUCTION! This manual has been designed for several purposes. If the SL 486VE is already set up in a functioning system, it will be helpful to reviewthe manual to become familiar with the features of the board and where things are. This will be helpful in the unlikely event there is a problem with the system. For those who want to alter the board's configuration or upgrade it, the manual will serve as a guide to both procedures and specifications.
Information presented in this publication has been carefully checked for reliability; however, no responsibility is assumed for inaccuracies. The information contained in this document is subject to change without notice. Contact your dealer for warranty details. Trademarks AMI Modular BIOS is a trademark of American Megatrends Inc. IBM, PC, AT, and PS/2 are registered trademarks of International Business Machines Corporation. SiS is a registered trademark of Silicon Integrated Systems Corp.
• CONTENTS CHAPTER 1 INTRODUCTION 1.1 1.2 General Specifications and Features Major Components 1-1 1-2 CHAPTER 2 MEMORY CONFIGURATION 2.1 System Memory 2.1.1 DRAM Module Insertion 2.1.2 DRAM Module Removal 2.2 Cache Memory Subsystem 2-1 2-2 2-3 2-3 CHAPTER 3 JUMPERS SETTING AND CONNECTORS 3.1 3.2 Jumper Settings Connectors 3-1 3-3 APTER 4 BUILT-IN BIOS SETUP PROGRAM 4.1 Setup Summary 4.2 BIOS Setup 4.2.1 When Should You Run Setup ? 4.2.
• CONTENTS 4.2.3 Running the SETUP Program 4.3 Running the Standard CMOS Setup 4.4 Running the Advanced CMOS Setup 4.5 Running the Advanced CHIPSet Setup 4.6 Using the Change Password Setup 4.7 BIOS Errors and Messages 4.7.1 Fatal Errors Through Beeps 4.7.2 Non-Fatal Errors Through Beeps 4.7.3 Fatal Errors Shown in Display 4.7.4 Non-Fatal Errors in Display 4.7.5 Errors With Setup Option 4.7.
• CONTENTS 5.10 Board ID Map 5-14 5.
Introduction Chapter 1 Introduction This chapter will cover the general specifications and features of the SL 486VE. 1.1 General Specifications and Features The SL 486VE mainboard is based on the powerful 80486 microprocessor and incorporates advanced computer technology to meet the requirements of the next generation of operating systems and applications. Yet, it retains full compatibility with the original IBM XT and AT and uses existing PC software and hardware.
SL 486VE User's • Manual Slots: П 8 EISA slots with 6 EISA-master slots (S1-S6) and 2 EISA slave slots (S7, S8). n Two VESA slots (S9, S10) with one master/ one slave slot or two slave slots. • Form Factor: Baby AT size, 6 layers PCB SMD design. 1.2 Major Components The SL 486VE mainboard is composed of many integrated circuits, chips, jumpers and connectors. (Please refer to Figure 3.
Introduction consists of: an arbitration scheme that allows efficient bus sharing among multiple EISA masters, the host CPU, Refresh, and DMA devices; a seven-channel programmable DMA Controller, a 16 level programmable interrupt controller which provides level or edge triggered interrupt capability on a channel-by-chaneel basis; non-maskable interrupt logic for multiple NMI control and generatin; five counters/timers which provide a system timer interrupt, DRAM refresh requests, a fail safe timer, a speak
SL 486VE User's • Manual Real-Time Clock The Real-Time Clock contains a self-contained lithium battery which offers ten years of data retention capability. • Non-Volatile SRAM The NVM employs 4K x 4 of SRAM and a self-contained lithium battery which offers ten years of data retention. The NVM can keep the EISA system and add-on card configuration information.
Memory Configuration Chapter 2 Memory Configuration In this chapter, the SL 486VE DRAM configurations are discussed, followed by instructions for DRAM module installation and removal. Users are recommended to read through this chapter before installing or removing memory. 2.1 System Memory The SL 486VE provides tremendous flexibility to support a number of different on-board DRAM configurations. The on-board DRAM is installed with SIMM (Single-In-Line Memory Module).
SL 486VE User's Manual Note that all of the four SIMMs within a bank must be of the same type; you can not mix 256KB, 1MB, 4MB, or 16MB modules in the same bank. The SL 486VE board provides 8 sockets for SIMM modules. These 8 sockets are divided into two banks and each bank can accommodate four SIMM sockets. Every bank can accept 256KB, 1MB, ,4MB or 16MB SIMM modules, but all of the four SIMM modules used in the same bank must be the same size.
Memory 2.1.2 Configuration DRAM Module Removal If possible, use a SIMM extraction tool; otherwise use the following method: 1. Carefully use your thumbs to bend outward the plastic tab ends on both sides of the slot. 2. The RAM module board will be automatically ejected off the clip arms. 3. Take it out of the socket. 4. Repeat step 1 through 3 to release the other RAM modules. 2.
SL486VE User's Manual The on-board DRAM beyond the cacheable size is not cacheable for the secondary cache. It is still cacheable for the 80486 internal cache, however. To reduce the propagation delay of the chip output buffer, the SiS85C411 employs an "advanced clock" instead of CPU clock to clock the cache read control signals. The advanced clock should lead CPU clock by 3 to 7 ns. It will increase the margin of data RAM access time.
SL 486VE User's Manual 32- Bit Slots ш IM IH 2 4 S7 Л , SB S1 S2 S3 S4 S6 Banku S6 Turob SW # 1£3&3 Turbo LED f~1 |W« Reset Speaker KeyLock Figure 3 .
Jumper Settings and Connectors Chapter 3 Jumper Settings and Connectors This chapter will assist you in setting up the SL 486VE before you install it in a system case. If your SL 486VE has already been installed and you do not wish to change the configuration settings, you can skip over this section. 3.1 Jumper Settings The SL 486VE has several jumper switches that must be set to define a system configuration. They are turned off and on by placing or removing a cover cap over the pins.
Jumper Settings and Connectors The table below summarizes the functions and settings of each jumper on the SL 486VE.
SL 486VE User's Manual Function Jumper Setting Cache Memory Size Setting 256K VESA ID Selecton CPU Speed > 33MHz JP5 CPU Speed< = 3 3 M H z JP5 closed opened 1 Wait State Write 0 Wait State Write closed opened 3.2 JP3 pin JP4 pin JPIOpin JP11 pin JP12pin JP13 pin JP6 JP6 2,3 2,3 2,3 4,5 2,3 2,3 closed closed closed closed closed closed Connectors There are several connectors located on the SL 486E.
SL 486VE User's Manual to operate according to this information. If the information it retrieves is incorrect or insufficient, the system may not be able to operate properly until accurate information is supplied. You do this by means of the SETUP program built in the system BIOS. 4.2.1 When Should You Run Setup ? 1. Although someone may have set up the system for you,you may want to adjust the system to fit your needs. 2.
Built-in BIOS Setup Program Chapter 4 Built-in BIOS Setup Program This chapter provides detailed instructions on how to configure your system using the Built-in BIOS Setup program and gives some technical information about your computer. If you are not very familiar with microcomputers, please read this chapter carefully before proceeding. If you do not want to change the system's configuration, you can skip this chapter.
Built-in BIOS Setup Program 3. When the BIOS prompts you In the self-test process, if the BIOS detects inconsistent or incorrect configuration information or some physical system error, it will display an error message on the screen, and prompt you to take action; for example: Run SETUP UTILITY Press to RESUME Press the < F 1 > key,and continue. 4. 4.2.
SL 486VE User's Manual The following is a brief description of the six options of the Setup main menu: • STANDARD CMOS SETUP Display the standard CMOS Setup screen to check or modify general configuration information. The standard CMOS setup displays the date, time, floppy type, hard disk type, video type, etc.
Built-in BIOS Setup Program BIOS SETUP PROGRAM-WARNING INFORMATION (C) 1991 American Megatrends. Inc., All Rights Reserved Improper Use of Setup May Cause Problems!! If System Hangs, Reboot System and Enter Setup by Pressing the < D e l > Key Do Any of the Following After Entering Setup (i) Alter Options to Make System Work (ii) Load BIOS Setup Defaults (iii) Load Power-On Defaults Hit < E S C > to Stop Now, Any Other Key to Continue Figure 4.2 BIOS Setup Warning Message 4.
SL 486VE User's Manual On-screen instructions in the lower left corner of the screen explain how to use the program. After making all selections, press < E S C > key and then return to the main menu program to choose another Setup program. И Date In the Date fields, you manuallyset the electronic calendar on the mainboard only if the values are incorrect. И Time Time fields include hour, minutes, seconds, but you can only set the value of hour and minute.
Built-in BIOS Setup Program Щ Base Memory and Extended Memory A small section in the upper right corner of the screen displays important status information on your system, including base and extended memory amount. They are updated automatically by the Setup program according to status detected by the BIOS self-test; no manual change is allowed. 4.4 Running the Advanced C M O S Setup When you choose.
SL 486VE User's Manual • DOS 1KB To reserve the top 640 KB in the DOS base memory and reduce the size of base memory by 1 KB. H System Boot Up Num Lock This option can set the "Num Lock" key to "On" or " O f f ' a f t e r system boot up. H External/ Internal Cache Memory Due to constraint of technology, speed of currently available D R A M may not be high enough to catch up with the speed of the CPU, which means that at every step of program execution, the CPU must wait for the DRAM to respond.
Built-in BIOS Setup Program 4.5 Running the Advanced Chipset Setup To program the registers of the chipset, choose the "Advanced Chipset Setup" option from the Setup main menu and press < E n t e r > . T h e screen will display the following menu: BIOS SETUP PROGRAM - ADVANCED CHIPSET SETUP ( O 1 9 9 0 American Megatrends Inc.
SL 486VE User's Manual • DRAM Speed There will be plenty of timing marging if the user adopts Fastest for 25 MHz, Faster for 33 MHz, and Slowest for 50 MHz, even when 100ns D R A M s are used. If 70/ 80ns DRAMs are used, faster speed option can be selected. • DRAM Write CAS Pulse Width The option determines the number of wait states to be kept when the CPU writes data into the local DRAM. The available options are as follows: . 2 T . IT Ш Cache Write Back I f disabled, cache is write-through.
Built-in BIOS Setup Program • BUSCLK Selection The BUSCLK Selection is an output clock for the I/O channel. This field used to specify the I/OBUSCLK clcok source used by the system. The user does not need to change this settings. The available options are listed below: . 7.159MHz . CPUCLK/2 (is • CPUCLK/2.5 . CPUCLK/3 (is . CPUCLK/4 (is . CPUCLK/5 • CPUCLK/6 (is .
SL 486VE User's Manual Я DRAM Hidden Refresh Recently the speed of DRAM is becoming faster so the time needed per refresh cycle is getting shorter. The refresh cycle time for the 100ns DRAM is 200ns minimum, for example. In a system with cache, most of the CPU accesses are referred to the cache so that the DRAM usage (percent of time the D R A M is accessed by the CPU) is significantly reduced.
Built-in BIOS Setup Program After pressing the current password , you can change the password stored in the CMOS. The password can be at most 6 characters long. To change the password, please follow the steps below: 4.7 BIOS Errors and Messages After entering setup choices, the system will reboot. The setup summary and system information will appear on screen along with messages. These may include ERROR messages concerning the system or setup.
SL 486VE User's Manual 4.7.1 Fatal Errors Through Beeps These errors are conveyed through a number of beeps. Beep Count 1 2 4 5 6 7 9 4.7.2 Meaning DRAM Refresh Failure Base 64 KB RAM Failure System Timer Failure Processor Failure Keyboard Controller-GATE A20 Error Virtual Mode Exception Error ROM-BIOS C h e c k s u m Failure Non- Fatal Errors Through Beeps These errors are conveyed as one long beep followed by several short beeps. Beep Count 3 8 4.7.
Built-in BIOS Setup Program 4.7.4 Non- Fatal Errors In Display There are two types of errors in this category: 1. One that requires you to press the F1 key and give you the option of running SETUP. 2. One that requires you to press the F1 key and don't give you the SETUP option. 4.7.5 Errors With Setup Option 1. CMOS battery state low indicates failure of CMOS battery or a failure in the set and checksum tests. 2.
EISA Configuration Utility Chapter 5 EISA Configuration Utility The EISA Configuration Utility software utility from American Megatrends, Inc. configures EISA (Extended Industry Standard Architecture) computer systems. EISA systems and adapter cards are much more complex and flexible than the older ISA designs. The EISA configuration Utility was created to automate this configuration process in EISA systems. The E C U permits the user to configure an EISA computer.
SL 486VE User's Manual used by an ISA system. In other words, I/O ports, R O M addresses, memory use, and the IRQ and DMA lines for an EISA motherboard and adapter card are configured using an E C U , where an ISA card uses DIP switches and jumpers to perform the same function. 5.1.2 EISA Bus Specification The EISA computer has 32-bit expansion slots that are fully compatible with 8-bit and 16-bit PC/XT/AT expansion slots. EISA expansion slots have 188 pins.
EISA Configuration Utility installing configuration files, although switch configurations are still allowed for both ISA and EISA to maintain compatibility. EISA provides a product identification mechanism for system and adapter cards. The computer automatically interrupts each device during the BIOS Power-On Self Test (POST) for the product identifier, compares it with the ID stored in EISA Extended CMOS RAM and configures the adapter card accordingly.
SL 486VE 5.3 User's Manual Installing the ECU The E C U is easy to install and can be used from either a hard disk drive or a floppy drive. Hard Disk Drive Operation Simply copy all files from the ECU floppy disk to the same directory on the hard disk drive. Make sure all CFG files are copied to the same directory. Floppy Drive You can execute the ECU from a floppy drive. Make a backup copy of the AMI E C U floppy disk to use as a working copy.
EISA Configuration Utility CFG Files Each adapter card in the EISA system should come with a CFG file on floppy disk. A card's CFG file contains detailed information on the card as well as the functions that the card can perform. The CFG file tells the E C U the possible configuration choices for the adapter card and the system resources that the adapter card needs. System resources include BMA(Direct Memory Access) channels,IRQ (Interrupt Request) lines, I/O Address Ports, and m e m o r y s p a c e .
SL 486VE User's Manual 5.4.1 Main Menu The main menu outlines the six steps involved in configuringan EISA system. Steps 1,2, and 3 are optional. To select a step, use the up and down cursor keys to move to a step and then press < Enter > .You may also select a step by pressing its item. The following sample screen shows the ECU Main Menu. EISA CONFIGURATION UTILITY, Release 2.01 p5j> b .
EISA Configuration Utility Step6 5.4.2 Exit This step exits to the operating system. If any configuration settings were changed, you are given the option o f rebooting the system so that the new settings will take effect. Using Help The help window may be accessed at any time by pressing the < F 1 > key While in the help system you may scroll the window up and down using the up and down cursor keys.
SL 486VE User's Manual 5.5 About EISA Configuration Use the cursor keys to move the menu bar to the "Step 1 "item and then press . The screen will display the following: About EISA Configuration and AMI E C U The EISA Configuration Utility from American Megatrends, Inc.
EISA Configuration Utility EISA CMOS RAM Initialization and configuration information is read by the E C U and stored in EISA CMOS R A M . A backup of CMOS R A M configuration data is also stored on disk. When the system is rebooted, the BIOS reads the CMOS R A M configuration data and executes the initialization instructions during POST. EISA Slot Numbers Each adapter card (EISA or ISA) is installed in an EISA or ISA expansion slot (connector) on the EISA motherboard.
SL 486VE User's Manual 5.6 Add and Remove Boards The ECU is menu-driven for ease of installation. There is also an extensive online help facility which can be accessed at any time by pressing the < F 1 > k e y or by moving the cursor to the Help option at the top of the Main Menu screen. Use the cursor keys to move the menu bar to the "Step 2" and then press < Enter > .
EISA Configuration Utility 5.6.1 Change Configuration Settings When you choose a configuration setting to change by moving the cursor to the appropriate adapter card and pressing < Enter > , the following screen appears: я м тел M B ^ r f Slot 1 - Empty Slot 2 - E m p t y Slot 3 - Empty Slot 4 - Empty Slot 5 - Empty Slot 6 - Empty Slot 7 - Empty SlotS - Empty - This step is optional, you may skip it by pressing ESC and all configuration settings will remain unchanged.
SL 486VE User's Manual 5.6.2 View Switch/Jumper Settings After saving the configuration, it is important that you do the following steps before using this system: 1. Note the switch and jumper settings and verify that all switches and jumpers on the boards in your systems set correctly. Some boards have switches and jumpers that need to be set manually. 2. Note the software statements to see if any of the boards in your configuration need special drivers to be loaded. 5.
EISA Configuration Utility Use the chart as a worksheet and list any other ISA adapter cards. You can configure the system automatically or manually. If the system has an ISA adapter cards and there is not a CFG file for each adapter card, use Manual Mode to configure a system. Manual Mode allows you to edit the configuration setting for all adapter cards in the system and make sure there are no resource conflicts between the EISA and ISA adapter cards.
SL 4S6VE User's Manual 5.8 Check CFG File Runs a syntax check on one or more CFG files and reports any errors. The following sample screens depict the screens that can be displayed. 5.9 Write Ext C M O S This option copies the contents of a CMS File to EISA Extended CMOS R A M which is maintained by the battery when the system is turned off.Doing this erases any previous configuration information stored in Extended CMOS R A M .
EISA Configuration Utility The Display/Print option presents a screen display of configured adapter cards. The following screen appears. You can select any number of the listed options to display. The Display/Print menu has four group of options. 1. The information to be displayed or printed. You can choose one or more option. 2. The information source All Board or Selected Board. If you choose Selected Board, a list of adapter cards is displayed. 3. The screen, printer (LPT1), or file.
SL 486VE User's Manual Display/Print The configuration has been saved. It is important that you do the follovung steps before using this system: 1. View the switch and jumper settings and verify that all switches and jumpers on the boards in your system are set correctly. Some boards have switches and jumpers that need to be set manually. 2. View the software statements to see if any of the boards in your configuration need special drivers to be loaded.
EISA Configuration Utility ISA Board Definition Board N a m e : Manufacturer: Board Type: DMA [ Save ] Video Board IRQ [Load] Slot Type: 16 Bit Ports Memory [ New] [ Delete ] [ Quit] 5-17
SL 486VE User's Manual File Selection Select the CFG files to be checked. Filespec *.CFG [ [ ] IECS1100.CFG - SI486VE EISASystem Board ] IECS1110.CFG - SL4S6VE EISASystem Board [OK] -[Cancel] Pares Messages Checking: IECS1110.CFG Identified CFG file IECS1110.CFG Board : SL4S6E EISASystem Board C a t e g o r y : SYS Parsing file : "IECS1110.
EISA Configuration Utility Write Extended CMOS This command vwites data to extended CMOS from a CMS file. This will destroy any previous configuration information that is stored in the system's CMOS memory.
SL 486VE User's Manual Display/ Print Information ] ] ] ] ] ] ] ] Board Information Switches & Jumpers Software Statements Connection Statements DMA Resources IRQ Resources Port Resources Memory Resources [ OK ] 4-20 [ Cancel ] Source [ t ] All Boards ] Selected Boards To [ t [ ] Screen ] Printer ] File
Appendix A Hard Disk Types Type Cylinders Heads WriteLanding Precomp Zone Sectors Capacity (Mbytes) 1 306 4 128 305 17 10 2 615 4 300 615 17 20 3 615 6 300 615 17 31 4 940 8 512 940 17 62 5 940 6 512 940 17 47 6 615 4 65535 615 17 20 7 462 8 256 511 17 31 8 733 5 65535 733 17 30 9 900 15 65535 901 17 112 10 820 3 65535 820 17 20 11 855 5 65535 855 17 35 12 855 7 65535 855 17 50 13 306 8 128 319 17 20 14 733 7
Table A.1 AMI BIOS Hard Disk Types Continued 21 733 7 300 732 17 43 22 733 5 300 733 17 30 23 306 4 0000 336 17 10 24 325 7 0000 925 17 54 25 925 9 65535 925 17 69 26 754 7 754 754 17 44 27 754 11 65535 754 17 69 28 699 7 256 699 17 41 29 823 10 65535 823 17 68 30 918 7_ 918 918 17 53 31 1024 11 65535 1024 17 94 32 1024 .
Appendix В Setting the System Speed There are two methods to select the system processing speed. You can change the speed during operation while you are working with your application program. High Speed / Ctrl / \ + \ / \ Alt / + / \ L o w Speed Ctrl * + Alt / + " + " means one must press the keys simultaneously.
