Page 2: Read This First
Setting Up Your System Most systems sold by EPSON Direct” are preconfigured; all the hardware and software (such as MS-DOS® and Microsoft® Windows™, is already installed. However, be sure to follow these general procedures when setting up your system: Install any internal options.
Page 3 EPSON products Assistance in locating your nearest Authorized EPSON Customer Care Center Assistance with Extra Care Road Service Sales of accessories, manuals, or parts for EPSON products through EPSON Accessories at (800) 873-7766 Customer relations EPSON technical information library fax service Product literature on current and new products.
Page 4 States and Canada and ask for representative #529. In other countries, call the following U.S. telephone number: (614) 529-1611, If you are already a CompuServe member, simply type GO EPSON at the menu prompt to reach the Epson America Forum. Compu Serve Magazine, or your local CompuServe access number.
Page 5 EPSON is a registered trademark of Seiko Epson Corporation. EPSON Direct and EPSON Connection are service marks of Epson America, Inc. Other product names used herein are for identification purposes only and may be trademarks of their respective companies.
Page 6 EPSON Connection is a service mark of Epson America, Inc General notice: Other product names used herein are for identification purposes only and may be trademarks of their respective owners. EPSON disclaims any and all rights in those marks. Copyright © 1994 by Epson America, Inc.
Page 7: Important Safety Instructions
Important Safety Instructions Read all of these instructions and save them for later reference. Follow all warnings and instructions marked on the computer. Unplug the computer before cleaning. Clean with a damp cloth only. Do not spill liquid on the computer. Do not place the computer on an unstable surface or near a radiator or heat register.
Page 8 Importantes instructions de sécurité Lire attentivement les instructions suivantes et les conserver pour les consulter en cas de besoin. Observer soigneusement tous les avertissements et directives marques sur l’ordinateur. Debrancher l’ordinateur avant de le nettoyer. N’utiliser qu’un chiffon humide. Veiller a ne pas renverser de liquides sur l’appareil. Ne pas placer l’ordinateur sur une surface instable ni près dune source de chaleur.
Page 9 Your new EPSON ® Intel 486SW 25 MHz, 486DW 33 MHz, 486DX2/ 50, or 486DX2/ 66 MHz microprocessor 4MB of internal memory, expandable to 64MB System and video BIOS shadow RAM SKI3 of internal processor cache, with support for 64KB,...
Page 10: Vga Drivers
Using the built-in interfaces, you can connect most of your peripheral devices directly to the computer, so you do not have to install option cards. You can use the option slots to enhance your system with extra functions such as a modem card, a network controller card, or additional interface ports.
Page 11: System Memory
OptionaI Equipment You can easily upgrade your computer by installing additional memory and a wide variety of options, as described below. (Installation instructions are provided in Chapters 4 and 5.) System Memory By adding 4MB, SMB, 16MB, and 32MB SIMMs (single inline memory modules) to the main system board, you can expand the computer’s memory up to 64MB.
Page 12: Math Coprocessor
Math Coprocessor You automatically install a math coprocessor when you upgrade your system with a DX or DX2 microprocessor, because a math coprocessor is built into the 486DX and 486DX2 chips. Drives Your system can support up to four mass storage devices, including hard disk drives, diskette drives, a tape drive, a CD-ROM drive, or an optical drive.
Page 13: Optional Equipment
Chapter 4 describes how to remove and replace the computer’s cover, change jumper settings, and install optional equipment such as microprocessor upgrades, option cards, and memory modules. Chapter 5 explains how to install and remove disk drives. Chapter 6 contains troubleshooting tips. Appendix A lists the specifications of your computer and the operating environments that have been tested on your system.
Page 14: Where To Get Help
0 Customer relations EPSON technical information library fax service Product literature on current and new products. You can purchase accessories, manuals, or parts for EPSON products from EPSON Accessories at (800) 873-7766 (U.S. sales only). In Canada, call (800) When you call for technical assistance, be ready to identify your system and its configuration, and provide any error messages to the support staff.
Page 15: Compuserve On-Line Support
States and Canada and ask for representative #529. In other countries, call the following U.S. telephone number: (614) 529-1611, If you are already a CompuServe member, simply type GO EPSON at the menu prompt to reach the Epson America Forum. CompuServe Magazine, or your local CompuServe access number.
Page 16: Table Of Contents
Contents Introduction VGA Drivers ......Optional Equipment System Memory ......Cache Memory .
Page 17 Checking System Memory ......2-4 Setting the Diskette Drive(s) ......2-4 The Fixed Disk Setup Option .
Page 18 Replacing the Option Card Connector Board Adding Video Memory ......Installing the Video Chips ......Installing External Cache .
Page 19 P o w e r S u p p l y Option Slot Power Limits Environmental Requirements Video Resolutions and Colors Tested Operating Environments Options Available from EPSON Hard DiskDrive Types Drive Option Information Connector Pin Assignments DMA Assignments Hardware Interrupts...
Page 20: Setting Up Your-System
Chapter 1 Setting Up Your System This chapter briefly describes how to set up your computer. It includes the following information: 0 Getting started 0 Connecting peripheral devices Turning the computer on and off. Getting Started Follow the instructions below for choosing a location for your new system and unpacking it.
Page 21: Unpacking Your Computer
Your system may also include an EPSON PS/2 compatible mouse and may come with the operating system and software already installed on a hard disk drive. If you purchased any optional equipment that wasn’t installed at the factory—such as option cards, memory modules, a hard...
Page 22: Connecting Peripheral Devices
Insert it into the port marked K/B. Connecting a Mouse If your system came with an EPSON PSI 2 compatible mouse: you connect it to the computer’s built-in mouse port. To connect the mouse, insert the connector into the port marked...
Page 23: Connecting A Monitor
Caution Although the connectors and ports for the mouse and keyboard are physically identical, they cannot be used interchangeably. Be sure to plug the mouse connector into the MOUSEport, or you may damage your system. If your system has not already been configured, you may need to install a mouse driver.
Page 24: Connecting A Printer Or Other Device
If the connector has retaining screws, tighten them. Plug the monitor’s power cord into the power inlet on the back of the monitor. Plug the other end of the power cord into a grounded electrical outlet or into the power outlet on the back of the computer.
Page 25: Connecting The Power Cord
Using the serial ports If you have a printer, a modem, or a mouse with a serial interface, you can connect it to one of the serial (RS-232C) ports on the back of the computer. Make sure you have a cable compatible with a DB-9P connector.
Page 26: Turning On The Computer
Turning On the Computer After you set up your system, you are ready to turn on the power. Use the illustration below to identify the features of your system’s front panel. (Your computer’s front panel may look a bit different from the one illustrated in this manual.) Before you turn on your computer, check the following safety rules to avoid accidentally damaging your computer or injuring yourself...
Page 27 0 Always wait at least 20 seconds after you turn off the power before you turn it on again to prevent possible damage to the computer’s electrical circuitry. Do not leave a beverage near your system. Spilled liquid can damage the circuitry of your equipment. Follow these steps to turn on your system : Turn your computer around so the front panel faces you.
Page 28: Turning Off The Computer
If your system is configured to automatically load a program (such as Microsoft Windows or a word processing program), you see the first menu or screen display of that program. If not, you may see the operating system prompt, such as \>...
Page 29: Running The Setup Program
Chapter 2 Running the SETUP Program You may need to run the SETUP program the first time you use your computer. If your system came unconfigured, you need to define how it is set up. If your system was configured for you, you may want to check the settings or adjust the date and time.
Page 30: Starting The Setup Program
Starting the SETUP Program When you start your computer, it performs some power-on diagnostics. During these diagnostics, you may see the following message: P r e s s < F 2 > t o e n t e r S E T U P (In SETUP, you can disable this message, if desired.) Press F2 to run SETUP.
Page 31: The System Setup Option
SETUP function keys (continued) Function F5or- Selectsthe previousvalue F6 or + or Selectsthe next value Spacebar Loadsthe factory default valuesforthe SEIUPoptionson the current Screen Ignoresany changesyou have made on the current Screen Enter Selectsthe current option orvalue Esc or Alt X Returnsto the previousscreen Whenever you are in SETUP, the bottom of the screen lists the keys you can press to perform specific functions.
Page 32: Setting The Video Display Type
Setting the Video Display Type The Video System option allows you to define the type of display you are using. If you have a VGA monitor that you connected to the computer’s built-in VGA port, select If you connected a monitor that doesn’t support VGA to a video adapter card installed in your system, select either the CGA 80 X 25 or the Monochrome option.
Page 33: The Fixed Disk Setup Option
The Fixed Disk Setup Option The Fixed Disk Setup options define the types of hard disk drives you installed in your system. When you select this option, you see the Fixed Disk Setup screen. From this screen, select F i x e d D i s k 0 C o n t r o l o r F i x e d D i s k 1 C o n t r o l .
Page 34: The Advanced System Setup Option
The Advanced System Setup Option When you select this option from the Main Menu, you see the Advanced System Setup screen. From this screen, you can select options that allow you to configure the computer’s cache memory and shadow memory, and define the advanced chipset options.
Page 35: Configuring Chipset Registers
Your computer can access RAM faster than ROM. The options on this screen allow your system to copy the contents of its system and/ or video ROM into RAM. When you use shadowing, your system can perform certain operations faster, providing a significant increase in performance.
Page 36: Setting The Boot Options
Setting the Boot Options When you select Boot Options from the Main Menu, you see the Boot Options screen. These options allow you to define the boot sequence and determine the information you see on the screen when you start up your system. The Disk drive boot sequence option determines the order in which the computer checks the drives when it looks for the operating system.
Page 37: The System Security And Anti-Virus Options
The Pause on POST errors option allows you to disable the error message and the message Press <Al> to r e s u m e , <F2> to Setup that you see when the system identifies a configuration error. If you disable this option, the system ignores configuration errors it finds during power-on diagnostics and starts as it normally would.
Page 38: Deleting Passwords
If you enable the Password on boot option, you must enter the Supervisor or User password each time you turn on the system. If you do not enable this option but you have defined passwords, you must enter the password each time you start the SETUP program.
Page 39: Using The Diskette Access Option
Then delete the Supervisor password the same way. Note You must delete the User password before SETUP will allow you to access the Supervisor password. If you have forgotten your password(s), see “Password Problems” in Chapter 6. Using the Diskette Access Option The Diskette Access option allows you to restrict access to your diskette drives based on the password levels you have defined.
Page 40: The System Summary Option
The System Summary Option When you select the System Summary option from the Main Menu, the SETUP program displays a summary of the configuration settings for your system. This is the same screen you see during system startup. You can choose not to have the system display this screen so system startup is faster.
Page 41: Post-Setup Procedures
Post-SETUP Procedures After you run SETUP for the first time, you may need to install the operating system on your computer (if it is not already installed). See your operating system manual for instructions. Once you have installed your operating system, install any software you plan to use.
Page 42: Using Your Computer
Chapter 3 Using Your Computer This chapter briefly describes the following operations: 0 Working comfortably 0 Inserting and removing diskettes Stopping a command or program 0 Resetting the computer 0 Using the password Changing the processor speed. Working Comfortably Use the guidelines to create a comfortable work environment: Use good posture.
Page 43: Inserting And Removing Disks
Place your monitor directly in front of you and sit about an arm’s length away from it. The top of the screen should be slightly below your eye level so you look down at the screen. Position the monitor so that no light is reflected from the screen.
Page 44 To insert a diskette into a 5.25-inch drive, hold the diskette with the label facing up and the read/ write slot leading into the drive. When the diskette is completely in the drive, turn down the latch to secure the diskette in the drive. When you want to remove the diskette, make sure the drive light is off;...
Page 45: Resetting The Computer
Resetting the Computer Occasionally, you may want to clear the computer’s memory without turning it off. You can do this by resetting the computer. For example, if an error occurs and the computer does not respond to your keyboard entries, you can reset it to reload your operating system and try again.
Page 46: Using A Password
If resetting the computer does not solve the problem, you need to turn it off and on again. Remove any diskette(s) from the diskette drive(s), turn off the computer, and wait 20 seconds. If you do not have a hard disk drive, insert a bootable diskette in drive A.
Page 47 You must turn off the computer and start over. You can reset the computer using the RESETbutton but you cannot reset the computer by pressing Note If you want to change or delete your password, you must run the SETUP program as described in Chapter 2. If you do not remember your password, see “Password Problems”...
Page 48 You can change the processor speed temporarily by entering one of the following commands from the numeric keypad on your keyboard : To select slow speed, press on the numeric keypad. This turns off the speed light. To select fast speed, press numeric keypad.
Page 49: Chapter 4 Installing And Removing Options
Chapter 4 lnstaIling and Removing Options You can enhance the performance of your computer by adding optional equipment such as system, video, or cache memory modules, option cards, or a microprocessor upgrade. This chapter first describes how to remove your computer’s cover to install options and how to replace the cover when you are finished.
Page 50: Removing The Cover
Removing the Cover You need to remove the computer’s cover to install any of the options described in this chapter or to install or remove a disk drive (as described in Chapter 5). Follow these steps to remove the cover: Turn off the computer and then any peripheral devices (including the monitor and printer).
Page 51 Grasp the sides of the cover and lift it straight up, as shown below: Set the cover aside. Ground yourself to the computer by touching the metal surface of the back panel. WARNING Be sure to ground yourself by touching the back panel of the computer every time you remove the cover.
Page 52: Replacing The Cover
Replacing the Cover When you are ready to replace the computer’s cover, follow these steps: Make sure all the internal components are installed properly. Check all cable connections, especially those that might have been loosened during your work. Make sure all cables are out of the way so they do not catch on the cover.
Page 53: Locating The Internal Components
Locating the Internal Components As you follow the instructions in this chapter, refer to the illustration below to locate the different components inside your computer. Installing and Removing Options...
Page 54: Changing The Jumper Settings
Changing the Jumper Settings The main system board in your computer has a number of jumpers that control certain functions. These jumpers are preset at the factory to default positions. See the illustration below to locate the jumpers on the system board. Note These are the only jumpers you may need to change.
Page 55 Use the information in the following tables to change jumper settings, if necessary. Jumpersettings * Factory setting ** You can use MS-DOS to automatically reassign parallel and serial ports. Check your MS-DOS manuaI for more information. ***Setting dependson CPU Installing and Removing Options...
Page 56: Setting The Jumpers
Edema/cache jumper settings* If you have no external cache installed, the position of these jumpersdoes not matter. Setting the Jumpers If you need to change any jumper settings, follow these steps: Refer to the illustration on page 4-6 to locate the jumpers. If there are any option cards installed in your computer, you need to remove them to access the jumpers.
Page 57 Setting jumpers To move a jumper from one position to the other, use needle- nose pliers or tweezers to pull it off its pins and gently move it to the desired position. Caution Be careful not to bend the jumper pins or damage any components on the main system board.
Page 58: Installing Memory Modules (Simms)
Installing Memory Modules (SMMs) Your computer comes with 4MB of memory on a SIMM. By installing additional SIMMs, you can increase the amount of memory in your computer up to 64MB. There are two SIMM sockets on the main system board. You can install 4MB, SMB, 16MB, and 32MB SIMMs.
Page 59: Inserting Simms
Use only tin-plated, 32-bit or 36-bit, 72-pin, fast-page mode SIMMs that operate at an access speed of 70ns (nanoseconds) or faster. Be sure all the SIMMs operate at the same speed. Inserting SIMMs Make sure the computer is turned off and then follow these steps to install SIMMs: Make sure the front of the computer is facing you.
Page 60: Removing Simms
Push the SIMM into the socket until it is seated firmly in the slot. Then tilt it upright, as shown below, guiding the hole at each end of the SIMM over the retaining post at each end of the SIMM socket. If it does not go in smoothly, do not force it;...
Page 61 Use your fingers or a small screwdriver to carefully pull away the metal tabs that secure the SIMM at each end, as shown below. As you pull away the tabs, the SIMM falls to the side. Remove it from the socket. If necessary, follow the same procedure to remove the other SIMM.
Page 62: Installing An Option Card
lnstalling an Option Card This section explains how to install option cards in your computer. Your computer has three 16-bit, full-length slots and two S-bit, half-length slots to accommodate a total of five option cards. As you install option cards, keep these guidelines in mind: Usually it does not matter which slot an option card occupies as long as the card fits in the slot.
Page 63 Caution Make sure the power requirements for the option cards you install do not exceed the power supply limitations. See your option card manual(s) for the power requirements. Then check Appendix A for the option slot power limits. Refer to the illustrations below and follow these steps to install an option card: If you are using a 16-bit option slot, go on to step 2.
Page 64 Remove the retaining screw securing the option slot cover to the computer, as shown below. (Keep the screw to secure the option card to the computer.) Slide out the slot cover and set it aside. (Store it in a safe place in case you remove the option card later.) 4-16 Installing and Removing Options...
Page 65 Hold the card along the top corners and guide it into the connector, as shown below. (If you are installing a full-length card, insert the front edge of the card into the corresponding guide inside the computer’s front panel.) Once the connectors reach the slot, push the card in firmly (but carefully) to insert it fully.
Page 66: Removing An Option Card
Removing an Option Card You may need to remove an option card to access components on the main system board-to change a jumper setting, for example. You may also want to remove a card if you no longer need it. Refer to the option card illustration on page 4-17 and follow these steps: Remove the retaining screw securing the option card to the computer.
Page 67 Remove the two retaining screws securing the option card connector board to the back of the computer, as shown below. Pull the board straight up and out of its socket and set it aside. 4-19 Installing and Removing Options...
Page 68: Replacing The Option Card Connector Board
Replacing the Option Card Connector Board If you removed the option card connector board, follow these steps to replace it. Refer to the option card connector board illustration above. Position the board above its slot and push it straight into the connector, as shown below.
Page 69: Adding Video Memory
Adding Video Memory Your computer comes with 512KB of video memory soldered onto the main system board. You can increase your video memory to 1MB by installing four video DRAM, 20-pin, 70ns or Sons, 256KB x 4-bit, DIP (Dual Inline Package) chips. This is useful for running graphics-intensive applications or for supporting resolutions up to 1024 x 768 in 256 colors.
Page 70 Caution To avoid generating static electricity and damaging the memory chips, ground yourself by touching the metal surface on the inside of the computer’s back panel. Then remain as stationary as possible while you install them. Remove the memory chips from their package and inspect each one.
Page 71 Gently press the chip halfway into the socket (to make sure it is correctly aligned). If the chip goes in at an angle, remove it with a chip puller or a small flat-head screwdriver and try again. When the chip is properly positioned, push down firmly on both ends of the chip to make sure it is well-seated.
Page 72: Installing The Cache Chips
Cache memory configurations Installing the Cache Chips Follow these steps: Locate the external cache memory sockets on the main system board, shown on page 4-5. If there is an option card in your way, remove it. See page 4-18 for instructions. Caution To avoid generating static electricity and damaging the cache chips, ground yourself by touching the metal...
Page 73 Position one of the cache chips over the first socket as shown below, aligning the pins on the chip with the holes in the socket. Make sure the small notch on the end of the chip is aligned with the corresponding notch on the socket. Gently press the chip halfway into the socket (to make sure it is correctly aligned).
Page 74: Upgrading The Microprocessor
10. Run SETUP to enable the External Cache option and check that the System shadow and Video shadow options are enabled. You select these options from the Advanced System Setup menu. Make sure you save your settings as you leave SETUP (see Chapter 2). When the computer restarts, it displays the amount of external cache you have installed on the system.
Page 75: Replacing The Processor Chip
Microprocessor upgrade steps Replacing the Processor Chip Be sure to remove the option card connector board before you follow the steps below to replace your microprocessor; see page 4-18 for instructions. Use the illustration on page 4-5 to locate the microprocessor. Ground yourself by touching the metal surface on the inside of the computer’s back panel.
Page 76 If you use a chip puller, position the puller between the processor chip and the socket. You can also use a small, flat-edged screwdriver instead of a chip puller. Carefully wedge the tip of the screwdriver between the processor chip and the socket. Gently turn the screwdriver until the chip begins to separate from the socket.
Page 77 Position the processor chip over the socket, aligning the notched edge of the chip (marked with a dot) with pin 1 on the socket, as shown below. A corresponding notch is drawn on the circuit board under the socket. d o t pin 1 Make sure the pins in the processor chip are directly over the holes in the socket.
Page 78: Post-Installation Procedures
post-installation Procedures After you install or remove options such as memory modules or a microprocessor, you must run SETUP to update the computer’s configuration. See Chapter 2 for instructions. Additionally, you may need to add some commands to your configuration files. See your operating system manual and the manual that came with your optional equipment.
Page 79: Installing A Hard Disk Drive In The Internal Drive Bay
Chapter 5 Installing and Removing Drives This chapter describes how to install and remove optional drives in your computer. You can use these instructions to install a variety of devices, including hard disk drives, a diskette drive, a tape drive, a CD-ROM drive, or an optical drive.
Page 80: Removing The Mounting Frames
lnstalling a Hard Disk Drive in the lnternaI Drive Bay Your computer may have a hard disk drive already installed in the internal drive bay. If not, you can install a l-inch high by 31/2-inch wide drive in this bay. This section includes steps for the following procedures: Removing the mounting frames from the hard disk drive (if necessary)
Page 81 Removing the Mounting Fames If there are mounting frames attached to your hard disk drive, you need to remove them before you can install the drive. Follow these steps: On your drive, there may be a plastic guiderail and metal grounding plate attached to one of the mounting frames.
Page 82 Connecting the Hard Disk Drive Cables To connect the hard disk drive to the computer, you need to connect two cables: the hard disk drive ribbon cable and a power supply cable. The hard disk drive ribbon cable is attached to your system board.
Page 83 Locate the hard disk drive connector on the system board. Position the system board connector on the cable so that the red wire aligns with pin 1 of the connector on the system board. There is a “1” printed on the system board to identify pin 1.
Page 84 Connecting the drive and power cables to the drive Follow the steps below to connect the hard disk drive ribbon cable and a power supply cable to the drive: Locate the hard disk drive connector on the end of the hard disk drive ribbon cable.
Page 85 Locate one of the power supply cables that lead from the power supply. (They have multi-colored wires and a plastic connector on the end .) Position the power supply cable connector so that its notched corners line up with the notched corners of the power supply connector on the hard disk drive.
Page 86: Installing The Hard Disk Below The Mounting Bracket
Installing the Hard Disk Below the Mounting Bracket If you have a l-inch tall hard disk drive, you can install it below the hard disk drive mounting bracket. Refer to the illustrations below and follow these steps: Remove the screw securing the mounting bracket to the base of the computer, as shown below.
Page 87 Align the hard disk drive so that the cables lead toward the diskette drive bays and the four screw holes on the base of the drive are above the four pegs, as shown below. pegs Gently lower the drive over the pegs. When the pegs are inserted in the screw holes on the base of the hard disk drive, the drive will not move from side to side.
Page 88 Lower the mounting bracket over the hard disk drive, making sure that the slots in the mounting bracket fit over the tabs on the base of the computer. Slide the bracket toward the side of the computer, as shown below, until the tabs hold the bracket in place. Secure the mounting bracket with the screw.
Page 89: Installing The Hard Disk On The Mounting Bracket
Installing the Hard Disk On the Mounting Bracket You can install a hard disk drive on top of the mounting bracket rather than under it. Refer to the illustration of the mounting bracket on page 5-8 and the one below while following these steps: Remove the screw securing the mounting bracket to the base of the computer and slide the mounting bracket toward the...
Page 90 Secure the bracket to the drive with four screws Note If you plan to install two hard disk drives, you must use flat-head screws to secure the second drive to the mounting bracket. You can purchase flat-head screws at any hardware store; request this size: #6-32UNC x 8 FH, M,+.
Page 91: Removing A Hard Disk Drive From The Internal Drive Bay
Removing a Hard Disk Drive From the Internal Drive Bay To remove a hard disk drive, reverse the installation steps outlined above. Then disconnect the hard disk drive ribbon cable and the power supply cable from the back of the drive. When you disconnect the cables, grasp the connectors and pull them straight out so you do not bend the pins;...
Page 92: Installing A Drive In The Upper External Drive Bay
Installing a Drive in the Upper External Drive Bay Your system comes with a 3.5-inch diskette drive installed in the lower externally accessible drive bay. You can also install a diskette drive, a tape drive, a CD-ROM, or an optical drive in the upper externally accessible drive bay.
Page 93 Keep the faceplate in a safe place in case you remove a drive later (or you are installing a drive that you don’t need to access). Remove any brackets or mounting frames from the drive. See page 5-3 for instructions. Slide the drive into the bay until it is flush with the front of the computer.
Page 94: Connecting The Drive And Power Cables
Align the slots at the side of the drive bay with the mounting holes in the drive. Then secure both sides of the drive to the drive bay using the retaining screws. Connecting the Drive and Power Cables To connect the drive to the computer, you need to connect both the drive ribbon cable and a power supply cable.
Page 95 If you are installing a drive with a card-edge connector, make sure you align the key-way (the plastic divider) with the gap in the drive connector, as shown below. If you are installing a 3.5-inch diskette drive with a header connector in the lower bay, see page 5-19 for instructions on connecting this cable.
Page 96: Removing A Drive From The Upper Drive Bay
Align the notched corners of the power supply connector with the notched corners of the drive’s power supply connector (such as the one shown below). Make sure the holes fit over all the pins and then push in the connector. Caution If you do not align the cable connectors correctly, you could severely damage your drive when you push them in.
Page 97: Reconnecting The Drive And Power Cables To The Diskette Drive In The Lower Drive Bay
Reach behind the drive and gently push it to the front of the bay; then pull it out of the slot. Once you have removed the drive, replace the faceplate by inserting one side of the plate, then gently guiding the other side into place.
Page 98: Post-Installation Procedures
Locate the multi-colored power supply cable with the small connector. This cable is attached to the system board rather than the power supply. Position the power supply cable connector so that the holes fit over all the pins. The red wire on the cable will align with pin 1 identified at the power connector on the circuit board of the drive.
Page 99: Chapter 6 Troubleshooting
Then contact your Authorized EPSON Servicer or call the EPSON Connection at (800) 922-8911 (in the U.S.) or (800) GO-EPSON (in Canada). Identifying Your System When you request technical assistance, be ready to provide the...
Page 100 Serial number: System BIOS version: System configuration: Windows version: Software versions: MS-DOS version: CONFIG.SYS: AUTOEXEC.BAT: Troubleshooting Look on the back panel of the computer to find the serial number. Restart your system. You’ll see the system BIOS version number on the screen when your system performs power-on diagnostics.
Page 101: The Computer Will Not Start
The Computer Will Not Start The power light is on, but the computer does not start Replace your main operating system diskette and turn on the computer again. The computer does not start and the powerlight is not lit Make sure the power cord is securely connected to both the AC inlet on the back panel and an electrical outlet.
Page 102: The Computer Does Not Respond
If you replace the microprocessor, make sure the new processor chip is installed correctly. Also make sure the jumpers are set correctly and that pin 1 on the chip is connected with pin 1 on the system board. See Chapter 4. The Computer Does Not Respond The computer locks up.
Page 103: Keyboard Problems
Keyboard Problems The screen displaysa keyboard error message when you turn on or reset the computer. Make sure the keyboard is securely connected to the keyboard port and not the mouse port. Nothing happens when you type on the keyboard. See “The Computer Does Not Respond,”...
Page 104: Diskette Problems
The powerswitch is on but the powerlight is not on. Turn off the monitor’s power, wait five seconds, and turn it back on. If the light still does not come on, check the electrical outlet for power. Turn off your monitor and unplug it from the outlet. Then plug a lamp into the wall outlet and turn it on.
Page 105: Diskette Drive Problems
You see a diskette drive error when you start your computer. Run the SETUP program and configure your system for the correct type of diskette drive. The diskette drive is making loud or unusual noises Contact your Authorized EPSON Servicer or the EPSON Connection. Troubleshooting 6- 7...
Page 106: Hard Disk Drive Problems
See your operating system manual for instructions. Also, make sure your hard disk drive has been physically formatted by the manufacturer. (All EPSON-supplied drives are physically formatted at the factory.) If it has not been physically formatted, use the format utility that came with the drive to format it before you install the operating system.
Page 107: Password Problems
You have been using your hard disk drive successfully for some time but notice a redduction in performance. The data on the disk may have become fragmented. Back up all your data and use a disk compaction utility to reorganize the files on your disk.
Page 108: Software Problems
Software Problems The application program does not start Check that you are following the correct procedure for starting the program and that it is installed correctly. If you do not have a hard disk, make sure the correct diskette is in the diskette drive.
Page 109: Option Card Problems
The printer prints garbled information. Check the printer manual for the printer’s correct DIP switch or control panel settings. Also, make sure you have the proper drivers installed for your printer and make sure you’ve selected the correct printer within your software application. Option Card Problems A newly installed option card is not working correctly.
Page 110: Memory Module Problems
Memory Module Problems The memory count displayed by the power-on diagnostics program is incorrect. You may have installed the SIMMs incorrectly. They may be the wrong type or speed, or they may not be inserted all the way. See Chapter 4 for information on installing SIMMs. If you have installed a gold-plated SIMM in one of the sockets, the socket may have corroded slightly.
Page 111 Extrenal Cache Problems The amount of cache displayed by the power-on diagnostics program is inconect. You may have installed the external cache chips incorrectly. They may be the wrong type, or they may not be inserted all the way. Also, you may not have changed the SETUP program or the jumpers to recognize the new cache.
Page 112: Specifications
Appendix A Specifications CPU and Memory 32-bit CPU System speed Memory Video RAM Shadow RAM Intel 486SW 25 microprocessor; upgradable to 486SXJ 33,486DW 33, 486DX2/ 50, or 486DX2/ 66 Fast and slow speeds available; fast speed is 25 MHz or the speed of your upgraded microprocessor, slow speed is 8 MHz;...
Page 113: Controller
Memory relocation Cache Math coprocessor Clock/ calendar Controllers Video Diskette Hard disk Specifications Supports relocation of 256KB of memory from A0000h to BFFFFh and D0000h to EFFFFh to extended memory 8KB of internal cache (built into the microprocessor); supports 64KB, 128KB, or 256KB of external cache using 28-pin, 8K x 8,20ns DIP chips or 28-pin, 32K x 8, 20ns DIP chips...
Page 114: Interface
lnterfaces Monitor Parallel Serial Keyboard Mouse Option dots Speaker VGA interface for fixed or multi-frequency monitor built into system board; 15-pin, D-shell connector One standard S-bit parallel bi-directional interface built into main system board; 25-pin, D-shell connector Two RS-232C, programmable, asynchronous interfaces built into main system board;...
Page 115: Mass Storage
Mass storage Diskette drives Hard disk drives Otherdevices Keyboard SETUP Program System security Specifications Internal mounts: Two 31/2-inch wide, one-inch high drives; with three or more option cards installed: the power supply supports only one internal drive Externally accessible mounts: One 31/2-inch wide, one-inch high drive and one 51/4-inch wide, half-height drive 3.5-inch diskette drive, 720KB or 1.44MB...
Page 116: Physical Characteristics
Physical Characteristics width Depth Height Weight Power Supply Type Input ranges Maximum outputs Frequency Cables Option Slot Power Limits 15.6 inches (396 mm) 14.5 inches (368 mm) 4.1 inches (104 mm) 15 lb (6.8 kg), without drives or keyboard 65 Watt, UL listed, fan-cooled 110-240 VAC +5 VDC at 7.5 Amps, -5 VDC at 0.1 Amp, +12 VDC at 2.0 Amps, -12 VDC at 0.2 Amp...
Page 117: Environmental Requirements
Environmental Requirements Video Resolutions and Colors * Non-interlaced and interlaced Specifications...
Page 118: Tested Operating Environments
As new environments become available, these also will be tested. Options Available from EPSON Many options for enhancing and supplementing this product are available from EPSON, including the following: Monitors Keyboards Mass storage devices...
Page 119: Hard Diskdrive Types
Hard Disk Drive Types Specifications...
Page 120 Hard disk drive types (continued) Actual formatted size may be slightly different than size on drive label; you cannot change thisvalue. Specifications...
Page 121: Drive Option Information
Drive Option Information Hard disk drive options for high-capacity, 1-inch IDE drives Select 1 or none for the precomp value. If neither of these optionsare available, select the maximum available precomp value. A-10 Specifications...
Page 122: Connector Pin Assignments
IDEhard disk drive jumpersettings CS(cable selection) can be jumpered for any configuration. When CSis used, the drive is a master if pin 28 isgrounded and a slave if pin 28 is not grounded. Connector Pin Assignments Parallelport connectorpin assignments (CN3) *Active low logic Signal Signalground...
Page 123: Dma Assignments
Serial port connector pin assignments (CN4 and CN5) DMA Assignments A-12 Specifications...
Page 124: Hardware Interrupts
Hardware Interrupts Specifications A-13...
Page 125: System Memory Map
System Memory Map Specifications A-14...
Page 126 System l/O Address Map Specifications A-15...
Page 127 System I/O addressmap (continued) Hex address 3A0 - 3AF 380 - 3BF 3CO-3CF 3DO-3DF 3F0 - 3F7 3F8 - 3FF 6E2,6E3 790 - 793 AE2, AE3 B90,893 EE2, EE3 1390- 1393 22El 2390 - 2393 42El 63El 82El A2El C2El E2El A-16 Specifications...
Page 128 Index Advanced Chipset Control option, Advanced System Setup option, 2-6-7 Application programs compatibility, A-7 copy protected, 3-6 installing, 2-13 problems, 6-10 requiring slow speed, 3-6 running under MS-DOS, 2-4 stopping, 3-3 video drivers, Intro-2 Auto-sensing, 2-5, 6-8, A-2 AUTOEXEC.BAT file, 6-2 Autotype Fixed Disk option, 2-5 Back panel, l-3, 4-2 Banks...
Page 129 Configuration cache memory, 2-6, 4-23-24 changing, 2-1, 2-12 drive, 2-4, 5-20 files, 4-30, 6-2 SIMM, 2-4,4-10 system, 6-l Connecting keyboard, l-3 monitor, l-4-5 mouse, l-34, l-6 power cord, l-6 printer, l-5 Connector diskette drive, 5-17-18 hard disk drive, 5-5-7 keyboard, 1-3, A-3 monitor, l-3-5, A-3 mouse, l-34, A-3 parallel, A-l1...
Page 130 6-11 video, Intro-2, 2-13 Electric shock, l-6, 4-3 Electrical circuitry, l-8, 6-3 outlet, l-5-6, 6-3 Electromagnetic interference, l-2 Environmental conditions, l-l Epson Connection, Intro-6-7 Errors diskette drive, 6-7 hard disk drive, 6-8 keyboard, 6-5 read/write, Extended memory, 2-4, A-14...
Page 131 Hard disk drive, preformatted, 2-5 problems, 6-8 removing, 5-13, 5-18 SETUP option, 2-5 slave, 5-12 types, 5-2, A-8-9 user-defined, 2-5 Heat sink, 4-14, 4-26, 4-29 Height, computer, A-5 Help screen, SETUP, 2-2 Help, where to get, Intro-6-7 I / O expansion slots, A-3 problems, 6-12 Indicator lights...
Page 132 Memory, configuration, 4-10 conventional, 2-4 extended, 2-4, A-14 installing, Intro-3, 4-l0-12 insufficient, 6-10 modules, see SIMMs problems, 6-12 RAM, Intro-l-3, A-l removing, 4-12-13 ROM, 2-1, 2-6, 2-12, A-l shadow, see Shadowing memory SIMMs, see SIMMs size, 2-4 standard, A-l system, Intro-l-3, l-8, 2-4, 2-6, A-l system map, A-14 video see Video memory Memory Cache option, 2-6...
Page 133 Parallel port connecting, l-5 connector, A-l1 jumper, 4-7 location, l-3 reassigning, 4-7 Password, Intro-l problems, 6-9 Supervisor, 2-9, 2-l1, 3-5 User, 2-9-10, 3-5 using, 3-5-6 Pause key, l-8, 3-3 Pause on POST errors, 2-9 Physical format, hard disk, 6-8 Port keyboard, Intro-l, 1-3, A-3 location, l-3 mouse, Intro-l, l-34, 6-12, A-3...
Page 134 Serial ports connecting, l-3-6 connector, 1-6, A-3, A-12 controller, A-3 description, Intro-l jumpers, 4-7 location, l-3 reassigning, 4-7 SETUP program advanced chipset control, 2-7 advanced system setup, 2-6-7 autotype fixed disk, 2-5 boot options, 2-8 cache memory, 2-6 chipset registers, 2-7 date and time, 2-3 diskette access, 2-l1, 6-6, 6-9 display prompt, 2-2, 2-8...
Page 135 System BIOS, Intro-l-2, 2-1, 2-4, 4-5, 6-1-2, A - l board, 4-5, 4-7, 4-14, 5-5 configuration, 2-3, 2-12, 6-l I/O address map, A-15-16 identifying, 6-l memory, Intro-l-3, l-8, 2-4, 2-6, A-l memory map, A-14 optimizing performance, 2-7, 4-l specifications, A-1-16 startup information, 6-2 startup, see Booting system System Security and Anti-Virus...

Epson EL 486UC+ User Manual

Chapter 1 Getting Started

Setting up Your-System

Running the SETUP Program

Chapter 2 Starting the SETUP Program

Chapter 3

Using Your Computer

Chapter 4 Installing and Removing Options

Chapter 5 Installing a Hard Disk Drive in the Internal Drive Bay

Chapter 6 Troubleshooting

Appendix A Specifications

Specifications

Quick Links

Related Manuals for Epson EL 486UC+

Summary of Contents for Epson EL 486UC+

Table of Contents