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Epson is a registered trademark of Seiko Epson Corporation, ActionDesk is a trademark and 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.
Page 3: 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 from the wall outlet before cleaning. Use a damp cloth for cleaning; do not use liquid or aerosol cleaners. Do not spill liquid of any kind on the computer.
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11. If you use an extension cord with the computer, make sure the total of the ampere ratings of the devices plugged into the extension cord does not exceed the ampere rating for the extension cord. Also, make sure the total of all products plugged into the wall outlet does not exceed 15 amperes.
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Instructions Importantes de Sécurité Lire complètement les instructions qui suivent et les conserver pour references futures. Bien suivre tous les avertissements et les instructions indiqués sur l’ordinateur. Debrancher l’ordinateur de toute sortie murale avant le nettoyage. Utiliser un chiffon humide; ne jamais utiliser un nettoyeur liquide ou une bonbonne aerosol.
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11. Dans le cas où on utilise un cordon de rallonge avec l’ordinateur, on doit s’assurer que la valeur totale d’ampères branches dans le cordon n’excède en aucun temps les amperes du cordon de rallonge. La quantité totale des appareils branches dans la prise murale ne doit jamais excéder 15 amperes.
Page 7: Table Of Contents

Contents Introduction VGA and IDE Drivers ......Optional Equipment System Memory ......Cache Memory .
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Chapter 2 Running the SETUP Program Starting the SETUP Program The System Setup Option ..... . 2-3 Setting the Time and Date ....2-3 Setting the Video Display Type .
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Removing an Option Card ..... Removing the Option Card Connector Board ..Replacing the Option Card Connector Board Adding Video Memory .
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Tested Operating Environments ....A-5 Options Available from Epson ....A-6 Hard Disk Drive Types .
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DMA Assignments ......Hardware Interrupts ......System Memory Map .
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Your new Epson ActionDesk™ 4000 computer is a fast, ® high-performance, all-in-one system offering flexibility and expandability in a compact design. It provides the following features: 486SX/25 MHz, 486DX/ 33 MHz, 486DX2 / 50, or 486DX2/66 MHz microprocessor 4MB of internal memory, expandable to 64MB...
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Support for up to four mass storage devices (two externally accessible and two internal) Password security. 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 14: Introduction 3

Instructions in Chapter 6 describe how to install the VGA drivers for Microsoft install the IDE drivers. Other VGA drivers are available from the Epson Electronic Bulletin Board or from our worldwide network of subsidiaries and distributors. To access the bulletin board, call (310) 782-4531.
Page 15: Video Memory

Video Memory You can add video memory chips to your system board to increase the video memory to 2MB and support higher video resolutions with more colors. Microprocessor You can upgrade your system with these microprocessors: 486SX/33 486DX/33 486DX2/50 486DX2 /66. Math Coprocessor You automatically install a math coprocessor when you upgrade your system with a DX or DX2 microprocessor,...
Page 16: How To Use This Manual

Appendix A lists the specifications of your computer, the operating environments that have been tested on your system, and options available from Epson. At the end of this manual you’ll find a Glossary, an Index, and a list of international marketing locations.
Page 17: Conventions Used In This Manual

International marketing locations are listed at the back of this manual. If you purchased your computer in the United States, Epson provides the following support services through the Epson Connection’“:...
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If you need help with any software you are using, see the documentation that came with it for technical support. Epson Connection: (800) 922-43911 You can also contact Epson at (310) 782-0770 and ask for the Epson Connection. Introduction 7...
Page 19: 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: Getting started Connecting the computer Turning on the computer Turning off the computer. Getting Started Follow the instructions below for choosing a location for your new system and unpacking it.
Page 20: Unpacking Your Computer

Unpacking Your Computer When you unpack your system components, make sure you have these items: 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.
Page 21: Connecting The Computer

Insert it into the port marked K/B. Connecting a Mouse If your system came with an Epson PS/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 MOUSE.
Page 22: 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 MOUSE port, or you may damage your system. If your system has not already been configured, you may need to install a mouse driver.
Page 23: Connecting A Printer Or Other Device

If the connector has retaining screws, tighten them. 5. Plug the monitor’s power cord into the power inlet on the back of the monitor. 6. 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 24: Connecting The Power Cord

4. Plug the printer’s power cord into a grounded electrical outlet. 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.
Page 25: 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 parts of your system. speed Before you turn on your computer, check the following safety rules to avoid accidentally damaging your computer or injuring yourself: Do not connect or disconnect any peripheral device cables...
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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: 1.
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When the computer completes its testing, it displays a screen describing the system’s configuration. If necessary, press the Pause button on the keyboard to view the configuration screen. After viewing the screen, press any key to continue the startup process. 5.
Page 28: Turning Off The Computer

Turning Off the Computer Whenever you turn off your system, follow these steps: 1. Save your data and exit any application program you are using. 2. Check the hard disk drive light and the diskette drive light(s) to make sure they are not on. Do not turn off the computer if a drive light is on, because you can damage the drive or lose data.
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 still need to set the date and time.
Page 30: Starting The Setup Program

Starting the SETUP Program Whenever you start your computer, you see the following message: Press <F2> to enter SETUP If the system detects will see an error message followed by this message: Press <F1> to resume, <F2> to Setup In either case, press F2 to run the SETUP program to verify or change your configuration.
Page 31: The System Setup Option

SETUP function keys (continued) Function Supplies the factory default values for the SETUP options on the current screen Ignores any changes you have made on the current screen Enter Selects the current option or value Alt R Refreshes the current screen Esc or Alt X Exits the current menu Whenever you are in the SETUP program, the bottom of the...
Page 32: Setting The Video Display Type

Setting the Video Display Type The Video System option allows you to define the type of adapter you are using. Because you connected your monitor to the computer’s built-in VGA port, select EGA/VGA. You must use a VGA monitor with this computer; therefore, always select a video display type of EGA/VGA.
Page 33: The Fixed Disk Setup Option

2. Type the appropriate values for your hard disk. 3. After entering the appropriate values press E screen. See Appendix A for a list of standard hard disk drives and Epson hard disk drives and their specifications. to exit this Running the SETUP Program...
Page 34: The Advanced System Setup Option

Note If you are going to install NetWare plan to assign a user-defined drive type for your drive, you must install the NetWare IDE drivers (IDE.DSK and IDE.OBJ). You can obtain these drivers by downloading IDE286.ZIP from Netwire in CompuServe. you can select one of the predefined hard disk drive types that most closely matches the drive you are installing.
Page 35: Configuring Memory Shadow

Configuring Memory Shadow You use the Memory Shadow option to enable or disable shadowing of your system and video memory as well as specific blocks of ROM. 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.
Page 36: Setting The Boot Options

The options that the system automatically configures for optimum performance are listed below: Memory remapping Refresh cycle DRAM wait state CPU clock selection Keyboard clock selection AT clock selection DRAM type NPU ready delay Divider of refresh frequency Hold PD bus Setting the Boot When you select this option from the Main Menu, you see the Boot Options screen.
Page 37: The System Security And Anti-virus Option

You can also enable or disable the system summary screen that the system displays during system startup. Disabling the System Summary screen speeds up system startup. The System Security and Anti- Virus Option When you select this option from the Main Menu, you see the System Security and Anti-Virus screen.
Page 38: The System Summary Option

By controlling access to the diskette drives, you can prevent unauthorized users from accessing the drives and possibly introducing a virus to your system. To delete your passwords, follow these steps: 1. Set the Password on boot option to Disabled. 2.
Page 39: Exiting The Setup Program

Exiting the SETUP Program When you leave the SETUP program, you can save your settings and reboot your system, or exit SETUP without saving your settings. You can also return all values to the factory defaults. To leave the SETUP program, press Esc from any SETUP screen.
Page 40: 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 41: Using Your Computer

Chapter 3 Using Your Computer This chapter briefly describes the following operations: Inserting and removing diskettes Stopping a command or program Resetting the computer Using the password Changing the processor speed. inserting and Removing Disks To insert a diskette into a 3.5-inch drive, hold the diskette with the label facing up and the metal shutter leading into the drive, as shown in the following illustration.
Page 42: Stopping A Command Or Program

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. 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 43: Resetting The Computer

Resetting the Computer Occasionally, you may want to clear the computer’s current settings or its 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 44: Using A Password

If resetting the computer does not correct the problem, you probably 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, insert the operating system diskette in drive A.
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If you set the Diskette Access option to Supervisor, you can access a diskette drive only if the Supervisor password is entered during startup. If the User password is entered, you cannot access the diskette drive. Follow these steps to enter your password when you see the password prompt: 1.
Page 46: Changing The Processor Speed

Changing the Processor Speed Your computer’s processor can operate at two speeds: fast speed (the speed of your microprocessor) or slow speed (8 MHz). The slow speed is available to provide compatibility with older application programs. When your computer is operating at fast speed, the TURBO light on the front panel is on.
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Note You can use the commands listed above while you are running a program. However, if the program uses one of these commands for another function, you cannot use it to change the processor speed. The speed setting remains in effect until you do the following: Reset your computer Turn off your computer Change the speed with another keyboard command...
Page 48: Installing And Removing Options

Chapter 4 Installing 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 49: 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).
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6. Grasp the sides of the cover and lift it straight up, as shown below: 7. Set the cover aside. 8. 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 51: Replacing The Cover

Replacing the Cover When you are ready to replace the computer’s cover, follow these steps: 1. Make sure all the internal components are installed properly. 2. Check all cable connections, especially those that might have been loosened during your work. 3.
Page 52: Locating The Internal Components

Locating the Internal Components As you follow illustration below to locate the different components inside your computer. optional video micro- memory processor sockets v i d e o memory optional external cache sockets hard disk drive mounting bracket instructions in this chapter, refer to the option card and connector system...
Page 53: 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 54: Jumper Settings

Use the information in the following tables to change jumper settings, if necessary. Jumper settings Jumper Jumper number setting Function 1-2 * Assigns PARALLEL port as LPT1 Assigns PARALLEL port as LPT2 1-2 * Assigns COM 1 serial port as COM 1 Assigns COM 1 serial port as COM3 ** 1-2 * Assigns COM2 serial port as COM2...
Page 55: Setting The Jumpers

External cache jumper settings* Cache size 64KB 128KB 256KB If you have no external cache installed, the position of these jumpers does not matter. Processor type jumper settings Processor type 486DX/DX2 486SX 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.
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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 57: Installing Memory Modules (simms)

Installing Memory Modules (SIMMs) Your computer comes with 4MB of memory 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, and each can contain one memory module. You can install 1MB, 2MB, 4MB, 8MB, 16MB, and 32MB SIMMs.
Page 58: Inserting Simms

S/MM configurations (continued) BANK 0 16MB 32MB 32MB 32MB 32MB 32MB 32MB 32MB Use only tin-plated, 32-bit or 36-bit, 72-pin, fast-page mode SIMMs that operate at an access speed of 80ns (nanoseconds) or faster. Be sure all the SIMMs operate at the same speed. SIMMs that are 80ns must operate with 1 wait state;...
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4. Position the SIMM at an angle over the empty SIMM socket, as shown below. 5. 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.
Page 60: Removing Slmms

Removing SlMMs If you need to remove SIMMs from your computer (to install different ones, for example), make sure the computer is turned off and then follow the steps below: 1. Remove any option cards that may be blocking your access to the SIMM sockets.
Page 61: Installing An Option Card

3. As you pull away the tabs, the SIMM falls to the side. Remove it from the socket. 4. If necessary, follow the same procedure to remove the other SIMM. 5. If you are inserting different SIMMs, follow the instructions on page 4-11 to install your new SIMMs.
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Check the components on your option card and the system board before deciding which slot to use. Make sure that no components are touching or obstructing other cards or cables. Caution Make sure the power requirements for the option cards you install do not exceed the power supply limitations.
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Remove the two retaining screws securing the power supply to the back of the computer and the third retaining screw holding the power supply to the base of the computer, as shown below. Be careful not to disconnect any of the cables. Slide the power supply out of the way.
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3. Slide out the slot cover and set it aside. (Store it in a safe place in case you remove the option card later.) 4. Unpack the option card and adjust any switches or jumpers on it, if necessary. (Check the option card instructions.) When you handle the card, be careful not to touch any of the components on the circuit board or the gold-edged connectors.
Page 65: Removing An Option Card

Once the connectors reach the slot, push the card in firmly (but carefully) to insert it fully. You should feel the card fit into place. If it does not go in smoothly, do not force it; pull the card all the way out and try again. 6.
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2. Remove the two retaining screws securing the option card connector board to the back of the computer, as shown below. 3. Pull the board straight up and out of its socket and set it aside. 4-19 Installing and Removing Options...
Page 67: 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. 1. Position the board above its slot and push it straight into the connector, as shown below.
Page 68: Adding Video Memory

Adding Video Memory Your computer comes with 1MB of video memory. You can increase your video memory to 2MB by installing two video DRAM, 256KB x 16-bit, 40-pin, ZIP (Zig-zag Inline Package) chips. This is useful for running graphics-intensive applications or for supporting high resolutions with many colors.
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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. 3. Remove the memory chips from their package and inspect each one.
Page 70: Installing External Cache

6. When the chip is properly positioned, push down firmly on both ends of the chip to make sure it is well-seated. 7. Repeat steps 4 through 6 for the other chip. 8. Replace any option cards you removed. See page 4-14 for instructions.
Page 71: Installing The Chips

Cache memory configurations BANK 0 U20, 21, 22, 23 8K x 8 32K x 8 32K x 8 Installing the Chips Follow these steps: 1. Locate the external cache sockets on the main system board, shown on page 4-5. 2. If there is an option card in your way, remove it. See page 4-18 for instructions.
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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 aligned with the corresponding notch on the socket. BANK 0 Gently press the chip halfway into the socket (to make sure it is correctly aligned).
Page 73: Upgrading The Microprocessor

When the computer restarts, it displays the amount of external cache you have installed on the system. Upgrading the Microprocessor You can upgrade your computer by replacing the microprocessor with a faster one. The following table lists the components you can use to upgrade the microprocessor in your system.
Page 74: Replacing The Processor Chip

Replacing the Processor Chip You must remove the option card connector board to remove your existing microprocessor. Refer to page 4-18 to remove the option card connector board, then follow these steps to replace the processor chip: 1. Use the illustration on page 4-5 to locate the microprocessor on the system board.
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5. Position the processor chip over the ZIF 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. Note If you install the processor chip in the wrong orientation, you may burn the chip and void your warranty.
Page 76: Installing A Heat Sink

If you are upgrading from a 486SX processor to a DX or DX2 processor, you need to change the jumper settings of J17 and J19. If you are upgrading to a CPU with a different clock speed, you may need to change the setting of jumper J16.
Page 77: Installing And Removing Drives

Reconnecting drive and power cables to the diskette drive in the lower drive bay Post-installation procedures. If you are installing or removing a non-Epson drive, some of the steps in this chapter may not apply; see the documentation that came with your drive for more information.
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Installing a Hard Disk Drive in the lnternal Drive Bay Your computer may have a hard disk drive already installed in the internal drive bay. If not, you can install a 1-inch high by 3 ½-inch wide drive in this bay. Here you will find steps for the following procedures: Removing the mounting frames from the hard disk drive (if necessary)
Page 79: Removing The Mounting Frames

Removing the Mounting Frames 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: 1. On your drive, there may be a plastic guiderail and metal grounding plate attached to one of the mounting frames.
Page 80: Connecting The Hard Disk Drive Cables

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.
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2. Locate the hard disk drive connector on the system board. 3. 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 82: Connecting The Drive And Power Cables To The Drive

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: 1. Locate the hard disk drive connector on the end of the hard disk drive ribbon cable.
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Caution If you do not correctly align the holes with the pins, you could severely damage your hard disk drive when you push in the cable connector. 5. 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.) 6.
Page 84: Installing The Hard Disk Below The Mounting Bracket

Installing the Hard Disk Below the Mounting Bracket If you have a 1-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: 1. Remove the screw securing the mounting bracket to the base of the computer, as shown below.
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4. 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. 5. 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 86: Installing The Hard Disk On The Mounting Bracket

7. Slide the bracket toward the side of the computer, as shown below, until the tabs hold the bracket in place. 8. Secure the mounting bracket with a screw on each side, as shown above. 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.
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3. Turn the hard disk drive over and locate the four mounting holes on the drive. 4. Position the bracket on the hard disk drive, aligning the holes in the bracket with the holes on the drive. 5. 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 this drive to the mounting...
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6. Turn the drive and the mounting bracket over, then slide the slots in the mounting bracket under the tabs at the base of the computer until the tabs hold the bracket in place. 7. Secure the mounting bracket with the retaining screw. Note If the drive does not fit within the internal bay, you can move the mounting frame toward the diskette drive bays...
Page 89: 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 90

Follow these steps to install a drive in the upper drive bay: 1. Remove the faceplate from the bay by pushing it forward, as shown below. 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).
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3. Slide the drive into the bay until it is flush with the front of the computer. 4. 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.
Page 92: Connecting The Drive And Power Cables

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. Follow the steps below. 1. If you are installing a diskette drive, locate the diskette drive ribbon cable.
Page 93

3. 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.) 4. Align the notched corners of the power supply cable connector with the notched corners of the drive’s power supply connector (such as the one shown below).
Page 94: Removing A Drive From The Upper Drive Bay

Removing a Drive from the Upper Drive Bay To remove a drive from the upper drive bay, follow these steps: Remove both the ribbon cable connector and the power cable connector from the drive. 2. Remove the screws securing the drive. 3.
Page 95

2. Identify pin 1 on the drive and align the connector so that the red wire is at pin 1, as shown below. Push in the connector. Locate the multi-colored power supply cable with the small connector. This cable is attached to the system board rather than the power supply.
Page 96: Post-installation Procedures

Post-installation Procedures After you install or remove your drive(s) and replace the cover on your computer, you need to run the SETUP program to define the correct configuration for your newly installed drive. See Chapter 2 for instructions. 5-20 Installing and Removing Drives...
Page 97: Installing Vga And Ide Drivers

Your computer’s built-in VGA adapter is 100% compatible with IBM VGA. This adapter allows you to use the computer with Epson VGA monitors, other brands of VGA monitors, and VGA compatible, multifrequency monitors that use analog input. The drivers described in this chapter work with any of these monitors.
Page 98

The Drivers diskette that came with your computer contains drivers for Microsoft Windows, version 3.1. Other drivers are available from the Epson Electronic Bulletin Board; call (310) 782-4531 to request additional drivers. The Drivers diskette also contains a utility program called SetRES, which allows you to change your screen resolutions from within the Windows environment.
Page 99: Installing The Windows Drivers

Installing the Windows Drivers If you have not yet installed Windows 3.1, follow the instructions in your Windows documentation to install it. Select VGA as the default display device. Then follow these steps to install the new drivers: 1. Within Windows, select Run from the file menu in the Program Manager.
Page 100: Setres

3. Select Change System Settings. 4. Select Display. 5. From the Display menu, select Other (Requires disk provided by a hardware manufacturer). 6. When the program prompts you to insert your display driver diskette and displays the path A : \, insert the Drivers diskette and press Enter.
Page 101: Ide Drivers

Select the resolution, font size, and number of colors you want to use and select Once you have changed options using the SetRES utility, you need to restart Windows for the new settings to take effect. Drivers The IDE drivers allow your system to take advantage of the high-speed performance of the local bus IDE hard disk drive interface.
Page 102

Note Not all hard disk drives can take advantage of this feature. To take advantage of the local bus IDE interface, your hard disk drive must support a 32-bit data path that utilizes double-word I/O. To find out whether your hard drive utilizes double-word I/O, see the hardware specifications for the drive or contact the vendor of the drive and request a product specification.
Page 103: Chapter 7 Troubleshooting

Within each category, a more specific problem is described with possible solutions. If the suggestions here do not solve the problem, contact your Epson service representative. Identifying Your System When you request technical assistance, be ready to provide the serial number of your computer, its system BIOS version...
Page 104

Use these guidelines to locate information about your system: Serial number: System BIOS version: System configuration: MS-DOS version: Software versions: CONFIG.SYS: 7-2 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 displayed on the screen when your system performs power-on...
Page 105: The Computer Will Not Start

AUTOEXEC.BAT: 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. Caution If you turn off the computer, always wait at least 20 seconds before turning it back on.
Page 106: The Computer Does Not Respond

You installed or removed system components, and now your computer does not start. Check to make sure you have reconnected all the internal and external cables correctly. You may have installed option cards that exceed the system’s power requirements. Check the power requirements in Appendix A.
Page 107: Keyboard Problems

Your computer sudden/y stops operating. You may have overloaded the power supply limitations. See your option card manual(s) for the power requirements for your option card(s). Then check Appendix A to see if you have exceeded the option slot power limits. Keyboard Problems The screen displays a keyboard error turn on of reset the computer.
Page 108: Diskette Problems

If you still do not see anything on the screen, make sure the monitor is securely connected to the computer. If you are running an application program, see if you need to set up the program for the type of monitor and display adapter you have.
Page 109: Diskette Drive Problems

Reinserting the diskette does not solve the problem. Insert the diskette in another diskette drive of the same type. If you can read the diskette in a different drive, your drive may be faulty. The diskette is the right type, but you still see an error. Check that the diskette is not write-protected, preventing the drive from writing to the diskette.
Page 110: 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 partition it or install the operating system.
Page 111: Password Problems

Note that a physical format is different from software-based formatting commands, such as the MS-DOS FORMAT command. been using your have some time but notice a reduction in 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 112: Software Problems

Software Problems application program 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. If you need help, contact your software manufacturer. application program disk.
Page 113: Option Card Problems

garbled The printer prints 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 new/y installed option curd is not working correctly.
Page 114: Memory Module Problems

An external device connected to the option curd is not working correctly. Make sure you are using the proper cable to connect the device to the card. Memory Module Problems The memory count displayed by the power-on diagnostics program is incorrect. You may have installed the SIMMs incorrectly.
Page 115: Controller Problems

Controller Problems controller error You see a or the I/O controllers when you port The indicated controller on your system board may be faulty. If you have an option card with a controller that will work with your device, you can install it and change the jumper settings on the system board to disable the built-in controller.
Page 116: Appendix A Specifications

Appendix A Specifications CPU and Memory 32-bif CPU System speed Memory Video RAM Shadow C a c h e Intel 486SX/25, 486SX/33, 486DX/33, 486DX2/50, or 486DX2/66 microprocessor Fast and slow speeds available; fast is the speed of the microprocessor, slow is 8 MHz;...
Page 117: Controllers

Math coprocessor Clock/ calendar Controllers Video Diskette Hard disk Interlaces Monitor Parallel Serial A-2 Specifications On DX and DX2 systems, math coprocessor built into the microprocessor Real-time clock, calendar, and CMOS RAM socketed on main system board with built-in battery backup Super VGA high-speed local bus with True Color support;...
Page 118

Keyboard Mouse Option slots Speaker Muss storage Diskette drives Your system supports the following PS/2 compatible keyboard interface built into main system board; 6-pin, mini DIN connector PS/2 compatible mouse interface built into main system board; 6-pin mini DIN connector Three 16-bit, full-length and two B-bit, half-length I/O expansion slots, ISA compatible, 8.33 MHz bus speed...
Page 119: Physical Characteristics

A-4 Specifications 3½-inch form factor hard disk drive(s), up to half-height size; maximum of two drives Epson IDE hard disk drives are available in BOMB, 120MB, 170MB, 240MB, 250MB, and 340MB Half-height tape drive, CD-ROM, or other storage device; 5¼-inch or 3½-inch with mounting frames 15.6 inches (396 mm)
Page 120: Option Slot Power Limits (total

Option Slot Power limits (Total) Maximum current For all slots Environmental Requirements Condition Temperature Humidity (non- condensing) Altitude Tested Operating Environments Although your system will run most software applications, the following operating environments have been tested for compatibility with your system. As new environments become available, these also will be tested.
Page 121: Options Available From Epson

Options Available from Epson The following list represents the options available for this product from Epson. Other options are available from other vendors. Call your nearest marketing location for more information on specific options. Options Option Peripheral devices Monitors Keyboards...
Page 122

ActionLaser 1000 (2MB) ActionLaser 1500 Ink jet Stylus 800 Ink Jet Printer Software Microsoft Windows 3.1,3.5” diskettes Epson MS-DOS 6.0, 3.5" diskettes Epson MS-DOS 5.0, 5.25" diskettes Epson MS-DOS 5.0, 3.5" diskettes Epson OS/2, version 2.0 Product code CO16231 C100011...
Page 123: Hard Disk Drive Types

Hard Disk Drive Types Hard disk drive types Size* (MB) Type Cylinders 6 1 5 4 6 2 6 1 2 1024 6 1 2 A-8 Specifications Landing Sectors/ Heads Zone Track 3 0 5 8 5 5 1023 6 3 3 6 1 2 Write Precomp 3 0 0...
Page 124

Hard disk drive types (continued) Size* (MB) Type cylinders 1218 1224 1024 1024 1024 1024 1024 Actual formatted size may be slightly different than size on drive label; you cannot change this value. Sectors/ Landing Heads Track Zone 1218 1224 8 3 0 1024 1024...
Page 125

Epson-supplied hard disk drive types Epson drive options 80MB (Conner CP30084E) 120MB (Conner CP30104H) 170MB (Conner CP30174E) 170MB (Quantum ELS170AT) 240MB (Quantum LPS240AT) 250MB (Conner CP30254) 340MB (Conner CP30344) Actual formatted size may be slightly different than size on drive label...
Page 126: Connector Pin Assignments

Connector Pin Assignments Parallel Port Connector (CN3) Parallel port connector pin assignments Signal Storbe Data 0 Data 1 Data 2 Data 3 Data 4 Data 5 Data 6 Data 7 *Active low logic Signal ACK* Busy Select Auto* Error* Init* Selectin* Signal ground Signal...
Page 127: Serial Port Connectors (cn4 And Cn5

Serial Port Connectors (CN4 and CN5) Serial port connector pin assignments Signal Data carrier detect Receive data Transmit data Data terminal ready Ground Keyboard and Mouse Connectors (CN7 and CN6) Although the keyboard and mouse connectors are physically identical, they cannot be used interchangeably. Keyboard and mouse connector pin assignments Signal Data...
Page 128: Dma Assignments

VGA Porf Connector (CN2) VGA port connector pin assignments Signal Green Blue Ground DMA Assignments DMA assignments level Assigned device DMAO Reserved (8-bit) DMAl Reserved (8-bit) DMA2 FDD controller (8-bit) DMA3 Reserved (8-bit) DMA4 Cascade for DMA controller 1 Reserved (16-bit) DMA5 DMA6 Reserved (16-bit)
Page 129: Hardware Interrupts

Hardware In tempts Hardware interrupts IRQ no. Function IRQ0 Timer output IRQl Keyboard Cascade from IRQ controller 2 IRQ2 IRQ3 Serial port 2 IRQ4 Serial port 1 Parallel port 2 IRQ5 FDD controller IRQ6 IRQ7 Parallel port 1 Real-time clock IRQ8 IRQ9 Reserved...
Page 130: System Memory Map

System Memory Map 000FFFFFFh 000FFF0000h 000FE0000h 00100000h 000F0000h 000C8000h 000C0000h 000B8000h 000B0000h OOOAOOOOh 00000000h System BIOS ROM: 64KB Duplicated from 0F0000h for system board: 64KB Reserved Duplicated from 0E0000h Extended memory System BIOS ROM: 64KB Default Shadow RAM duplicated at FF0000h Unused or I/O expansion ROM: 160KB Reserved for ROM on I/O adapters VGA BIOS ROM: 32KB...
Page 131: System I/o Address Map

System I/O Address Map System I/O address map Hex address 000-01F 020-03F 022-024 040-05F 060-06F 070-07F (CMOS) 080-09F 0A0-0BF 0B4, 0BB 0C0-0DF 0 F 0 0 F 8 - 0 F F 1F0-1F8 200-207 278-27F 2B0-2DF 2E2, 2E3 2 F 8 - 2 F F 300-31F 360-363 368-36B...
Page 132

System I/O address map (continued) Hex address Assigned device Parallel printer port 1 378-37F 380-38F SDLC, bisynchronous 2 390-393 Cluster 3A0-3AF SDLC, bisynchronous 1 3 B 0 - 3 B F Monochrome display and printer adapter 3C0-3CF Enhanced graphics adapter 3D0-3DF Color graphics monitor adapter 3F0-3F7...
Page 133: Glossary

Glossary Access speed The time it takes for a device, such as memory or a disk drive, to return data. For example, your computer’s SIMMs return data requested by the microprocessor at an access speed of 70ns. Address The location where information is stored in a computer’s memory.
Page 134

B o o t The process a computer performs to check its components and then load the operating system into memory. A wire or group of wires that sends information between components in the computer. The speed of a bus increases by the number and width of the channels the bus uses to move data.
Page 135: Extended Memory

Central Processing Unit. The primary device that interprets instructions, performs tasks, keeps track of stored data, and controls input and output operations. See also Microprocessor. Device driver A file containing instructions that allow your computer to recognize and communicate with a device. The device may be a printer, monitor, or other type of device.
Page 136: Internal Cache

Integrated Drive Electronics. A type of hard disk drive interface in which the controller is on the drive instead of on a controller card. Your computer includes an interface on the main system board for up to two IDE hard disk drives. Internal cache Cache memory built into your microprocessor.
Page 137: Memory Module

Main system board The circuit board inside your computer containing the circuitry and components your computer needs to operate. Math coprocessor A device that enables the computer to process mathematical calculations faster by using floating point numbers instead of whole numbers. Megabyte (MB) A unit used to measure storage space in a computer’s memory...
Page 138: Processor Speed

Parallel An interface that transmits data simultaneously over separate wires in a cable. See also Serial. Pathname The directory name(s) you specify to locate a file. For example, the pathname for the file SALES, stored in the subdirectory BUSINESS, is \BUSINESS\SALES. Power-on diagnostics Tests stored in a computer’s ROM that the computer runs to check its internal circuitry, peripheral device configuration, and...
Page 139: Shadow Ram

Refresh rate The frequency with which a monitor can redraw a screen image. The faster the refresh rate, the less the screen will flicker. Reset To restart a computer without turning it off. You can reset your computer by pressing Ctrl Alt Del. Resetting erases all data stored in RAM and reloads your operating system.
Page 140

SIMM See Memo y module. Subdirectory In a hierarchical disk directory structure, a group of files in a directory within another directory or the root directory. True Color A VGA feature that supports 24-bit-per-pixel color, which enables your VGA interface to display 16.8 million colors. The screen image looks more like a photograph than a traditional computer image.
Page 141: Zif Socket

Write-protect To protect the data on a diskette from being changed by setting the write-protect switch on a 3.5-inch diskette or by placing a write-protect tab over the notch on a 5.25-inch diskette. You cannot change data on a write-protected diskette. ZIf socket Zero Insertion Force.
Page 142: Index

Index AC power inlet, 1-5-6,7-3 Advanced Chipset Control option, Advanced System Setup option, 2-6-8 Altitude, A-5 Analog VGA input, 6-1 Application programs available options, A-7 compatibility, A-5 copy protected, 3-6 IDE drivers, Intro-3,2-6,6-1, 6-5-6, 7-8-9 installing, 2-12 problems, 7-10 requiring slow speed, 3-6 running under MS-DOS, 2-4 stopping, 3-2 version number, 7-2...
Page 143

Configuration cache, 4-23-24 cache memory, 2-6 changing, 2-1-2, 2-11 drive, 2-4, 5-20 files, 4-29, 7-2, 7-9 SIMM, 2-4, 4-10 system, 7-1 Connecting keyboard, 1-3 monitor, 1-4-5 mouse, 1-3-4, 1-6 power cord, 1-6 printer, 1-5-6 Connector diskette drive, 5-16-17 hard disk drive, 5-5-7 keyboard, 1-3, A-12 monitor, 1-3-5, A-13 mouse, 1-34, A-12...
Page 144

Electric shock, 1-6, 4-3 Electrical circuitry, 1-8,7-3 outlet, 1-5-6,7-3 Electromagnetic interference, 1-2 Electronic Bulletin Board, Intro-3 Environmental conditions, 1-1 requirements, A-5 Epson Connection, Intro-6-7 Errors diskette drive, 7-7 hard disk drive, 7-8 keyboard, 7-5 read/write, 7-9 Extended memory, 2-4, A-15 VGA, Intro-3, 2-12...
Page 145

Hard disk drive cable, 5-2-7, 5-13, 5-17 configuration, 5-20 connecting cables, 5-4, 5-6 connector, 5-5-7 controller, 4-7, A-2 double-word I/O, 6-6, 7-8 Epson-supplied, A-10 errors, 7-8 formatting, 7-8 installing, Intro-4,5-1-20 jumpers, 5-2, 5-11, 7-8 light, 1-7 local bus, Intro-1, 6-1, 6-5-6, 7-8,...
Page 146

Keyboard port, Intro-1, 1-3, A-3, A-12 problems, 7-5 PS/2 compatible, Intro-1, 1-3, A-3, A-12 specifications, A-3 Keypad, numeric, 3-6, 7-5 Keys, SETUP function, 2-2-3 Local bus hard disk drive, Intro-1, 6-1, 6-5-6, 7-8, A-2 IDE hard disk interface, Intro-3, 6-1, 6-5-6, 7-8, A-2 video, Intro-1, Intro-3,6-1, A-2 Location, choosing, 1-1 Low processor speed, 3-6...
Page 147

MS-DOS, 2-4, 4-7 NetWare, 2-6, A-5 Non-interlaced monitor, Intro-2 resolutions, 6-2 Non-operating range, A-5 Num lock, 7-5 Numeric coprocessor, Intro-1, intro-4, A-2 Numeric keypad, 3-6, 7-5 Operating range, A-5 Operating system diskette, 3-3, `7-3 installing, 1-9,2-12 MS-DOS, 2-4, 4-7 prompt, 1-9 reloading, 3-3 version number, 7-2 Option card connector board...
Page 148

Power supply cables, 5-4, 5-6-7, 5-16-18 frequency, A-4 input ranges, A-4 limitations, 4-15, 7-5 location, 4-5 maximum outputs, A-4 removing, 4-15 type, A-4 Power-on diagnostics, 1-8, 7-12 Precautions, iii-viii, 1-1-2, 4-1 Printer available options, A-7 cable, 1-5 checking connections, 7-10 connecting, 1-5-6 connector, 1-5-6, A-11 drivers, 7-11...
Page 149

SETUP program starting, 2-2-3 system information, 2-34 system memory, 2-4 system security, 2-9-10 system summary, 2-10 user-defined, 2-5-6 Shadowing memory, Intro-1-2, A-1 BIOS ROM, 2-7 video ROM, 2-7 SIMMS adding, Intro-3 banks, 4-10-11 configuration, 2-4, 4-10 gold-plated, 7-12 incorrect type, 7-4 installing, Intro-3, 4-10-12 location, 4-5 positioning, 4-12...
Page 150

User password, 2-9-10, 3-4-5 User-defined hard disk drive, 2-5-6 Utility, disk compaction, 7-9 VESA drivers, 6-2 connector, 1-3-5, A-13 controller, Intro-2, A-2 drivers, Intro-3,2-12,6-1-5 IBM, 6-1 interface, Intro-2, A-2 monitor, 1-4-5, 6-1-2, 7-6 port, Intro-1, 1-34,2-4, A-13 resolutions, 6-4 standard, 6-1 Video BIOS, 7-2, A-1 card option, 2-4...
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