Epson Equity 320SX PLUS Manuale Utente

EPSON®EQUITY® 32Osx PlUSUser’s Guide

Chapter 4Enhancing System OperationsUsing AUTOEXEC.BAT and Other Batch Files...4-lChanging the Processor Speed...4-2Enteri

Align the connector with the socket so the tab on theconnector lines up with the notch in the socket. Makesure the holes in the connector fit over all

Replacing the CoverFollow these steps to replace the computer’s cover:1.Facing the back of the computer, hold the cover so thatthe side with three tab

3.Lower the back of the cover onto the computer and pressdown firmly on all edges of the cover to form a tight seal.4.Turn the large screw on the back

Chapter 6Installing and Removing OptionsYou can enhance the performance of your computer byadding a variety of options, including the following:0 Opti

A math coprocessor speeds up the numeric calculations yourcomputer performs when using certain application software.If you purchase a math coprocessor

Setting the JumpersThe illustration below shows the locations of the jumpers onyour computer’s main system board.A jumper’s setting is determined by w

CautionBe careful not to bend the jumper pins or damage anysurrounding components on the main system board.The following table lists the jumper settin

If you need to change any jumper settings, follow these steps:1.Remove any option cards that may be blocking youraccess to the jumpers. See page 6-13

If necessary, follow the instructions on page 5-2 to removethe computer’s cover. Then follow these steps to replace thebattery:1.The battery is attach

2.The battery is attached to the computer with Velcro?Remove the battery by pulling it up from the bottom ofthe computer case, as shown below. Then se

Chapter 7Installing and Removing Disk DrivesUsing the Correct Drive Bay...7-2How to Use This Chapter...7

4.Connect the battery cable to connector CNl.5.Follow the steps in Chapter 5 to replace the computer’scover. Then run the SETUP program to reconfigure

Installing an Option CardYour computer has four standard option slots: three 16-bitslots and one 8-bit slot. Each slot can accommodate anoption card.

Slots 1 through 3 are designed for 16-bit option cards andslot 4 is designed for an 8-bit card. As you can see below, a16-bit card has an extra connec

Follow these steps to install an option card:1.If you are installing an option card that controls a mouse,you need to change the setting of jumper J4

3.4.5.Unpack the option card and adjust any switches orjumpers on it, if necessary. (Check the option cardinstructions.) When you handle the card, be

6.Secure the end of the card to the back of the computerwith the retaining screw.7.Follow the instructions in Chapter 5 to replace the cover.Then see

Adding Memory ModulesYour computer comes with 2MB of memory soldered directlyonto the main system board. By installing SIMMs (singleinline memory modu

Installing Memory ModulesThere are six SIMM sockets on the main system boardorganized in three banks consisting of two sockets each. Thesockets are la

Follow these steps to install SIMMs:1.Remove the computer’s cover and subassembly asdescribed in Chapter 5.2.The SIMM sockets are located on the front

3.Install the SlMMs in the sockets closest to the right sideof the main system board first. Position each SIMM so thenotch on its edge faces the front

Appendix B Performing System DiagnosticsStarting the Diagnostics Program . . . . . . . . . . . . . . . . . . . . .B-2The Main Menu Screen . . . . . .

The SIMM should snap into place between the tabs andthe retaining posts. If it does not go in smoothly, do notforce it; pull it all the way out and tr

2.The SIMM sockets are located on the front of the mainsystem board near the math coprocessor socket, as shownbelow.SIMM sockets\SIMM2math coprocessor

3.Remove the SIMMs in the sockets closest to the left sideof the main system board first. Use your fingers or twosmall screwdrivers to pull away the t

lnstalling a Math CoprocessorYour computer has a socket on the main system board toaccommodate an 80387SX, 20 MHz math coprocessor. Amath coprocessor

3.The math coprocessor socket is located on the front ofthe main system board near the SIMM sockets, as shownbelow.4.The math coprocessor socket is ho

The math coprocessor also has a notch in one corner,marked by a dot, as shown below.notchAlign the notched corner of the coprocessor with thenotched c

If the coprocessor does not go in smoothly, do not forceit; pull it all the way out and try again, keeping it straightas you insert it.It is completel

Post-Installation Setup for Memory CardsAfter you install an optional memory card, you need toconfigure your computer to use it. Follow these guidelin

If you install a hard disk drive that has never received ahardware level format (such as some non-Epson hard diskdrives), you need to format the disk.

Installing and Removing Disk DrivesThe instructions in this chapter describe how to install andremove optional Epson drives in your computer. You can

Appendix CTroubleshootingIdentifying Your System...C-lError Messages...C-2The Computer Won’

Your computer has two horizontal drive bays and onevertical mounting position to hold up to three drives, asshown below.Using the Correct Drive BayYou

The upper horizontal drive bay probably contains thediskette drive that came with your system. This drive bay canaccommodate one of the following type

Setting the Hard Disk Drive JumpersYou may need to change the hard disk drive jumper settingsif you install or remove a hard disk drive. The jumpers t

Changing the Jumper SettingsThe hard disk drive jumpers are located on the drive’sboard, near the large cable connector.circuitlarge cableconnectorThe

The following table lists the jumper settings for all thepossible hard disk drive configurations.JumperOne hardTwo hard diskTwo hard diskpositions dis

If one of your hard disk drives is already installed in thecomputer, follow the steps under “Removing a Hard DiskFrom the Vertical Position” on page 7

Removing the Mounting Frames From the DriveYour hard disk drive comes with 51/4-inch mounting framesattached to each side of the hard disk drive, as s

On one side, there may also be a plastic guiderail. Followthese steps to remove the mounting frames (and guiderail)from the drive:1.If necessary, remo

Removing and Attaching the Mounting PlateIf you are installing a new hard disk drive in your computer,you need to attach a hard disk drive mounting pl

Then place the flat side of the mounting plate on thehard disk drive and align the four holes on the plate withthe four holes on the drive, as shown b

IntroductionThe Epson® Equity® 320sx PLUS is a high-performancepersonal computer which offers exceptional speed andconvenience in a compact design.You

Follow these steps to install the hard disk drive in the verticalmounting position:1.Place the hard disk drive on the right side of thesubassembly wit

The connector at one end of the cable has two rows ofholes, one of which is blocked with a plug, as shownbelow.The ribbon cable socket on the back of

3.Align the connector with the socket so that the row inthe connector with the blocked hole lines up with therow in the socket with the missing pin, a

4.Locate one of the power supply cables that lead from thepower supply (behind the horizontal drive bays). Thecables are labelled Pl, P2, and P3; you

6.Notice that there are two tabs facing downward on oneedge of the mounting plate. These tabs will fit into twoslots in the right side of the subassem

7.Secure the drive to the bracket with the retaining screw.Now you can replace the subassembly and the computer’scover. See Chapter 5 for instructions

3.Disconnect the power supply connector and the ribboncable connector from the sockets on the back of the harddisk drive, as shown below. Firmly pull

Installing or Removing a Drive in the HorizontalPositionThis section describes how to install or remove a drive in ahorizontal drive bay. Although the

2.There are two or three holes on each side of the diskdrive. When you insert the drive, align the appropriateround holes in the drive with the two ov

4.Locate the four retaining screws that came with your diskdrive. Insert two screws into the oval holes on each sideof the drive bay and tighten them

You may want to install an 80387SX, 20 MHz mathcoprocessor in your computer to speed up mathematicalcalculations in certain application programs.Check

The interface that protrudes from the back of the drivehas gold contacts on both sides. Near one end of theinterface, there is a gap to accommodate th

6.Locate the hard disk drive ribbon cable that you removedfrom the drive in the vertical mounting position. Followthe instructions below to attach the

7.Align the connector with the socket so that the row inthe connector with the blocked hole lines up with therow in the socket with the missing pin, a

The power supply socket on the back of the drive is nextto the ribbon cable connector. The socket also has twonotched comers, as shown below.power sup

9. If necessary, follow the instructions under “Installing aHard Disk in the Vertical Position” on page 7-7 toreinstall your vertically mounted drive.

3.Remove the screws securing the drive to the drive bay.There are two screws on each side.4.Grasp the disk drive from the front of the drive bay, pull

Appendix ASpecificationsCPU and Memory32-bit CPUSystem memoryROMShadow RAMMath coprocessor(optional)Clock/calendarBattery80386SX microprocessor, 20 MH

ControllersDisketteHard diskInterfacesMonitorSupports up to two drives in any of fourformats: 51/4-inch, high-density, 1.2MB;51/4-inch, double-density

Power SupplyTypeInput ranges 98 VAC to 132 VAC and 195 to 264 VACMaximumoutputs+5 VDC at 18 Amps, +12 WC at4.2 Amps140W, fan-cooled, automatic inputvo

KeyboardLayoutDetachable, two position; 101 sculptedkeys58-key QWERTY main keyboard; 17-keynumeric/cursor pad; 10 cursor keys;additional 4-key cursor

How to Use This ManualThis manual explains how to set up and operate yourcomputer, install options, and run diagnostic checks.Although the illustratio

System Memory MapSpecifications A-5

Appendix BPerforming System DiagnosticsThis appendix describes how to use the System diagnosticsprogram to test the condition of your computer’s main

Starting the Diagnostics ProgramTo start the diagnostics program, follow these steps:1.Insert the Reference diskette in drive A and turn on orreset th

When you select a test category from the option line at thetop of the menu, you see a submenu of the availablediagnostic tests. For example, the subme

Setting the Run Time ParametersThe tests you select will run in the following manner unlessyou change the run time parameters:3Each test is performed

Press N and Enter if you want the diagnostics program tocontinue when an error occurs.The next option is:Error logging (Y/N) ? NPress Y and Enter to r

If you selected Passbound testing, you see this prompt:No. of passes : 00001Spedfy the number of times (from 1 to 65535) you want theprogram to run th

If youselect Log errors on disk, the program displays thissubmenu:Floppy disk A:Floppy disk B:Hard disk C:Hard disk D:(You do not see drive D unless y

Selecting Diagnostic TestsTo start a single test, press ’ or ‘ to highlight the testcategory on the main menu. Then press “ or ” to highlightthe parti

You can stop testing at any time and return to the mainmenu by holding down Ctrl and pressing Break The programcompletes the current test before it st

Chapter 7 describes how to install and remove disk drives.Appendix A gives the technical specifications for thecomputer.Appendix B outlines the system

Running the TestsThe table below lists all of the available System diagnostictests and refers you to other sections in this chapter foradditional info

System diagnostic tests (continued)Component TestsHard diskHard disk formatdrivesMedia analysisPerformanceSeekRead/verifyCheck test cylinderForce bad

System diagnostic tests (continued)ComponentVideo(continued)TestsFunction440 x 350 graphics*Test the 640 x 350 graphicsdisplay640 x 480 graphics*Test

Destructive testsFormatMedia analysisForce bad tracksNon-destructive testsPerformanceSeekRead/verifyCheck test cylinderBefore performing any destructi

Disk drive identifierYou see this prompt for the disk drive identifier:Disk drive (C/D) ? CIf you have only one hard disk drive, the program assumes i

Bad track listEntering the bad track list is optional. Thethe following prompt for the bad track list:programdisplaysMark bad tracks (Y/N) ? NYou do n

Enter the first and last cylinder numbers on which you wantto perform the tests. The default for the start cylindernumber is 0, and the default for th

CautionThe hard disk format procedure destroys any data on yourhard disk.You may want to reformat a hard disk if you have a seriousproblem with the dr

Performance TestThis test checks the performance of your hard disk bydetermining the data transfer rate and track-to-track seektime based on the trans

Check Test CylinderThis test checks the test cylinder, which is the last cylinderon the hard disk. You should perform this test if you receivea hard d

Chapter 1Setting Up Your SystemSetting up your Equity 320sx PLUS personal computer is easy.Just follow the eight steps in this chapter. As you set up

The controller displays one of the following messages whenan error occurs during a diagnostics procedure:Address mark not foundAttachment failed to re

Performing the TestsThe Diskette format test checks the format capability of thediskette drive and its controller. In order to run the test, youneed a

NoteBe sure to insert a blank diskette that has been formattedusing the MS-DOS FORMAT command before you run theDiskette format test. Then use that di

You may see the following message if you attempt to run theChange line test on a drive that does not support a changeline, such as a 360KB or 720KB dr

Before running the test, be sure that the printer is on-line,paper is loaded, and all connections are secure, or you maysee one of the following error

If you see one of the following errors, there may be aproblem with the controller or the test cable:Error -Break detectedError -Framing errorError- Ov

Appendix CTroubleshootingYou should not encounter any difficulties as you set up anduse your computer, but if anything out of the ordinaryhappens, ref

3.When the computer performs a memory test, the versionnumber of your system ROM BIOS appears at the bottomof the screen. Quickly write down the versi

The Computer Won ‘t StartIf your computer does not start when you turn on the power,check the following:1.Is the power light on? If not, remove any di

The Computer Does Not RespondIf your computer locks up and does not respond when youtype on the keyboard, follow these steps:1. Some operations take l

Before you set up your computer, it’s important to choose asafe, convenient location that provides the following:00clclcl0A sturdy desk or table stron

7.If your computer still does not respond, you can reset itusing the Ctrl Alt Del command or the RESET button. See“Resetting Your Computer” in Chapter

Accessing Your Current PasswordIf you have forgotten your current password and cannot useyour computer, follow these steps:1. Turn off the computer an

If you did not set a new password, you do not see theEnter Password prompt and you can access your systemimmediately.Note:Be sure to remember your new

Monitor ProblemsFor monitor problems, check the following1.If there is no display on the screen, check that themonitor’s power switch is on and that t

NoteIf your application program requires a monitor thatsupports graphics but you have a monochromemonitor, the results will be unpredictable.8.If you

3.If reinserting the diskette does not solve the problem andyou have access to another diskette drive of the sametype, place the diskette in the other

If you see one of these messages, make sure the diskette isproperly inserted in the drive. On a 51/4-inch diskettedrive, make sure the drive latch is

3.Did you run the SETUP program to define the correcttype of diskette drive as part of the computer’sconfiguration? (See Chapter 2 for instructions.)4

Installing the DriveIf you are having problems with a newly-installed drive,check the following:1.If your dealer installed the drive, consult that per

Preparing the DriveBefore you can store data on a new hard disk (which hasalready been physically formatted), you must do thefollowing to prepare it f

IMPORTANT NOTICEDISCLAIMER OF WARRANTYEpson America makes no representations or warranties, either express or implied,by or with respect to anything i

2 Removing the Protector CordIf you have a SW-inch diskette drive, there is a protector cardin the diskette slot. This card is inserted at the factor

If you still have trouble with your hard disk, you can back upyour data and physically reformat the disk. Then you’ll needto reinstall MS-DOS and copy

4.An application program can occasionally lock thecomputer, making it unresponsive to the keyboard. Ifyour computer does not respond when you type on

If it does not, you may need to change the internalsetting of the computer’s parallel port for a parallelprinter (or serial port for a serial printer)

3.4.5.6.Did you set the necessary jumpers on the main systemboard? See Chapter 6 for more information.Did you run the SETUP program to update yourconf

Memory Module ProblemsIf you added extra memory to your system by installingSIMMs and that memory is not operating properly, check thefollowing:1.If t

Math Coprocessor ProblemsIf your math coprocessor does not seem to be operatingproperly, check the following:1. Run the SETUP program and check to mak

GlossaryAddressA number or name that identifies the location whereinformation is stored in a computer’s memory.Analog monitorA monitor that generates,

Automatic speedThe feature that enables the computer to switchautomatically from high speed (20 MHz) to low speed(10 MHz) when accessing a diskette dr

ByteA sequence or group of eight bits that represents onecharacter.CGAColor Graphics Adapter. A type of display adapter card thatcan generate up to 25

ConfigurationThe particular setup of a group of components. A typicalsystem configuration consists of a computer with onediskette drive and one hard d

3Connecting a MonitorThe way you connect your monitor to the computer dependson the type of monitor you have. If you have a VGA monitor(or a multi-fre

CylindersThe vertical alignment of tracks in a hard disk that can belined up under one read/write head. The number of tracks ona disk is equal to the

DiagnosticsThe tests and procedures the computer performs to check itsinternal circuitry and set up its configuration.DIP switchDual lnline Package sw

DOSDisk Operating System. A commonly used operating systemthat controls the computer’s input and output functions. Seealso Operating system.Double-den

FifeA group of related pieces of information called records, orentries, stored together on a disk Text files consist of wordsand sentences. Program fi

HexadecimalA numbering system with a base of 16, frequently used byprogrammers. Any decimal number between 0 and 255 canbe expressed by a two-digit he

Main system boardThe board built into your computer containing the circuitrythe computer requires to operate.Math coprocessorAn optional device that e

Memory moduleA small circuit board that contains memory chips. You canadd 256KB, IMB, or 4MB memory modules to the mainsystem board inside the compute

MouseA hand-held pointing device with one or more buttons.When you slide the mouse over a flat surface in a certaindirection, the cursor moves in the

OS/2Operating System/2. The enhanced operating system byMicrosoft that provides dual mode processing andmultitasking capabilities. See also Operating

Peripheral deviceAn external device (such as a printer or a modem) connectedto a computer that depends on the computer for itsoperation.PortA physical

4.Examine the connector end of the monitor cable, andposition the plug to match the orientation of themonitor port (marked with a monitor icon). Then

RAMRandom Access Memory. The portion of the computer’smemory used to run programs and store data while youwork. All data stored in RAM is erased when

Root directoryThe top-level directory in MS-DOS, designated by a \(backslash). All other directories are subdirectories of the rootdirectory.RS-232CA

SubdirectoryA directory or group of files that branches down fromanother subdirectory or from the root directory.SwitchAn option added to an MS-DOS co

Video cardA display adapter card that can be installed in one of thecomputer’s option slots to provide a monitor interface. Yourcomputer comes with a

IndexAAUTOEXEC.BAT, 4-l-2,4-8Auto speed, 2-11, 4-2-3BBacking up data,from diskettes, 3-10,3-l7on hard disk, 3-17-18with BACKUP, 3-17with DISKCOPY, 3-1

CTRL ALT DEL, 3-5CTRL BREAK, 3-3CTRL C, 3-3Cursor bar, 2-3DDate, setting, 23Diagnostics,power-on, C-2system, B-l-25DISKCOPY, 3-10, 3-17Diskette drive,

FFiles,AUTOEXEC.BAT, 4-l-2, 4-8backing up, 3-17-18batch, 4-l-2CONFIG.SYS, l-14, 4-8-11copying, 3-17-18EMM386SXSYS, 4-7-11ESPEED, 45HDSIT, 3-19-20Flopp

LLIM 4.0 EMS, 4-7Loading MS-DOS, 3-14-15Location, choosing for computer,l-l-2Low speed, 2-11,4-2-6Low-level format,see Physical formattingMMap, system

Option slots, 5-12-15, A-2Options, installing, 6-l-26,7-l-27OS/2, Intro-2, 3-lPParallel,cable, l-8-10interface, l-8-10,2-15, A-2port, l-8-10,2-15port

SETUP program, 2-1-17base memory, 2-3,2-10clock, real-time, 2-3cursor bar, moving, 2-3disk drive controllers, 2-16diskette drive types, 2-4display typ

6. Plug the monitor power cord into the monitor’s powerinlet, as shown below.7. Plug the other end of the power cord into an electricaloutlet.1-6 Sett

Video cards,CGA, 1-7, 2-8-9compatibility, 1-7diagnostics, B-l1-12EGA, 1-7, 2-8-9emulation, 4-12Hercules graphics card, 1-7,2-8-9installing, l-7-8, 6-9

Using a Display Adapter CardIf you are using a non-VGA monitor, you’ll need to install adisplay adapter (video) card in one of the computer’s optionsl

NoteIf you install a display adapter card, you must set jumperJl on the main system board to disable the built-in VGAinterface so that your card can o

3.One end of the printer cable has a 25-pin, D-shellconnector. Position the plug to match the orientation ofthe parallel interface (marked with a spec

4.Connect the other end of the cable to the printer asshown below. To secure the cable, squeeze the clips ateach side of the printer port and push the

Using the Serial lnterfaceIf you have a printer, a modem, or other peripheral devicewith a serial interface, you can connect it to the serial(IR-232C)

5Connecting the KeyboardFollow these steps to connect the keyboard:1. Make sure the computer is turned off.2. Hold the keyboard cable connector so the

FCC COMPLIANCE STATEMENT FOR AMERICAN USERSThis equipment has been tested and found to comply with the limits for a class Bdigital device, pursuant to

3. You can raise the keyboard by adjusting the legs on thebottom. To change the angle of the keyboard, turn it overand flip each leg upward until it l

mouse connectorOnce you have connected a mouse, you may need to addcommands to your MS-DOS CONFIG.SYS file to enable yourcomputer to use a mouse. See

7 Connecting the Power CordFollow these steps to connect the power cord:1. Plug the power cord into the AC power inlet on the backpanel, as shown belo

8Turning On the ComputerAfter you set up your system, you’re ready to turn on thepower. But first, read the following safety rules to avoidaccidentall

4.To turn on the computer, press the power button locatedon the right side of the front panel, as shown below.power buttonThe power indicator next to

When the system has successfully completed its self test, yousee the following prompt:Press <Del> to start SETUPDo not press any key yet. If MS-

Chapter 2Running the SETUP ProgramWhen you use your computer for the first time, you need torun the SETUP program to define how your system is set up.

The configuration you define through SETUP is stored in aspecial area of memory called CMOS RAM. This memory isbacked up by a battery, so it will not

The menu automatically displays the base memory size, theextended memory size, and whether a math coprocessor(numeric processor) is installed. Additio

Setting the Diskette Drive(s)Your system probably came with one diskette drive installedand you may have another drive of a different size orcapacity.

1.2.3.4.5.6.7.8.9.Important Safety InstructionsRead all of these instructions and save them for later reference.Follow all warnings and instructions m

Setting the Hard Disk Drive(s)The SETUP program lets you select the type of hard diskdrive(s) installed in your computer. If you have two hard diskdri

Hard disk drive types2-6Running the SETUP Program

Hard disk drive types (continued)Defining your own drive typeIf the parameters for your hard disk (listed in itsdocumentation) do not match any of the

Press Enter after typing each number. If you enter an invalidnumber, the computer beeps and does not go on to the nextparameter. Check your drive docu

0If you have a composite color monitor, such as a colortelevision with a video input, try selecting Co1or80x25. If you find that the monitor’s resolut

Setting the Shadow RAMYour computer can access RAM (random access memory)faster than ROM (read-only memory). The Shadow RAMfeature enables the Equity

Setting the CPU Clock SpeedThis option lets you set the default speed at which yourcomputer’s processor operates when you turn it on:PHigh speed (20 M

EMS SizeThe EMS Size option provides a simple way to set the amountof memory you want to use as expanded. Expanded memorycan be used by application pr

For example, with 2MB of memory, you can specify any ofthe following as expanded memory:0 0KB3 256KBLi 512KBQ 768KBQ 1024KBCl 1280KB.Setting the Passw

Now type the password you want to use. You can type up toeight characters using the letter or number keys, in upper- orlowercase. For example, you cou

13. Unplug this product from the wall outlet and refer servicing toqualified service personnel under the following conditions:A.When the power cord or

Setting the Built-in interfacesThis option lets you define how the following built-ininterfaces operate:Cl Parallel port (LPTl, LPT2, LPT3)0Serial por

Setting the Serial InterfaceThe built-in serial port in your computer is set to act as theprimary port (COMl). If you install an option card thatprovi

If you saved your changes, the SETUP program resets yoursystem and the computer runs through its power-ondiagnostic tests.If something is wrong, howev

Chapter 3Using Your ComputerThis chapter briefly describes the following procedures forusing your computer:PInstalling MS-DOS or another operating sys

Special Keys on the KeyboardCertain keys on your keyboard serve special functions whenyour computer is running MS-DOS or application programs.The spec

Special key functions (continued)The Caps Lock, Num Lock, and Scroll Lock keys work astoggles; press the key once to turn on a function and again totu

These methods may also work in your application program.If not, you may need to reset the computer, as describedbelow.CautionIt is best not to turn of

There are two ways to reset the computer:0If you are using MS-DOS, hold down Ctrl and Alt andpress the Del key. The screen goes blank for a momentand

If you do not enter the correct password the first time, pressEnter and try again.If you want to change or delete your current password, youmust run t

All disks are divided into data storage compartments by sides,tracks, and sectors. Double-sided diskettes store data on bothsides. On each side are co

1.2.3.4.5.6.7.8.9.Importantes Mesures de SéuritéLire attentivement les instructions qui suivent. Les conserveren lieu stir.Observer les avertissements

Your computer uses the read/write heads in a disk drive tostore and retrieve data on a disk. To write to a disk, thecomputer spins it in the drive to

0360KB drive-Use 5 1/4-inch, double-sided, double-density,48 TPI, 360KB diskettes. (You can also use single-sided,160KB or 180KB diskettes.) These dis

Because of these incompatibilities, always indicate thediskette type and density when you label your diskettes.(Usually this information appears on th

0Keep diskettes in a moderate environment. Don’t leavediskettes sitting in the sun, or in extreme cold or heat.0Keep diskettes away from magnetic fiel

Write-protecting DiskettesYou can write-protect a diskette to prevent its data frombeing altered. When a diskette is write-protected, you canread it a

On a 3M-inch diskette, the write-protect device is a smallswitch on the back of the diskette in the lower right comer,shown below. To write-protect a

Using a Single Diskette Drive SystemMS-DOS expects the computer to have at least two diskettedrives and displays prompts and messages accordingly.Usua

You can load MS-DOS from an application programdiskette if that diskette contains the operating system Thismeans it is a bootable diskette. See your M

If you have a 3 1/2-inch diskette drive, insert the diskette withthe label facing up and the metal shutter leading into thedrive, as shown in the foll

Formatting DiskettesBefore you can store data on a new diskette, you must formatit using the FORMAT command. Formatting prepares thediskette so that M

12. Sauf dans les cas specifiquement indiques dans le Guide del’utilisateur, ne pas essayer de réparer l’ordinateur soi-même;s’adresser à un spécialis

Using a Hard Disk DriveUsing a hard disk is similar to using a diskette. However, thehard disk provides several advantages:clDClA 40MB hard disk can s

Caring for your hard disk driveFollow these precautions to protect your hard disk drive fromdamage and to avoid losing data:Never turn off or reset th

You see a message on the screen that tells you the disk drive’sread/write heads will remain locked until you reset thecomputer or turn the power off a

Chapter 4Enhancing System OperationsThis chapter tells you how to use the following procedures toenhance the operation of your computer:0Using AUTOEXE

When you install MS-DOS, it creates an AUTOEXEC.BAT filefor you. To modify the file or replace it with a new one, youcan use the COPY or EDLIN command

There are different types of copy-protected programs.Depending on the type you have, you may or may not wantto set the processor to automatic speed. F

Entering Keyboard CommandsYou can change the processor speed by entering one of thecommands shown in the following table.Speed setting commandsTo ente

Using the ESPEED ProgramESPEED provides an easy way to change the processor speedif your application program does not recognize the Cttlkeyboard comma

To display the current CPU speed, type ES P EED only andpress Enter. You see the following:<+>: Speed Up20.0 MHz <->: Speed Down<Esc>

Using Expanded Memory Beyond 640KBThe Equity 320sx PLUS comes with 2MB of random accessmemory. MS-DOS and your application programs that rununder MS-D

ContentsIntroductionOptional Equipment... 1Operating Systems and Other Software...2VGA Utilities...

3. Add a command to the CONFIG.SYS file to include thememory manager as a device driver, as described in thenext section. The CONFIG.SYS file is used

3. Save the file as an ASCII text file.4. Reset the computer.If you do not have a word processing program capable ofsaving an ASCII text file, you can

The M[n] parameter specifies a particular 64KB page frameaddress for EMM386SX.SYS. The value n must be a numberfrom 1 to 9 to indicate one of the foll

EMM386SX.SYS automatically excludes from mapping anyaddresses that are reserved for use by your system ROM andRAM. If you install an option card, such

You can use the VGA utilities (also provided on the Utilitydiskettes) to take advantage of other special features of yourVGA adapter. Even if you do n

Chapter 5Accessing Internal ComponentsTo access your computer’s internal components, you need toremove the cover and possibly the subassembly that con

Removing the CoverTo access any internal components, you need to remove thecomputer’s cover. Follow these steps:1.Turn off the computer and then any p

5.The cover is also secured by two latches on the back ofthe cover near the comers. Press both latches inward andthen lift up the cover from the back

7.Before you touch any of the components, touch theinside of the computer’s back panel, as shown below, toground yourself and avoid an electric shock.

Removing the SubassemblyYou need to remove the subassembly to install or removedisk drives, or to access the SIMM or math coprocessorsockets on your c

Setting the Primary Display Type...2-8Setting the Keyboard Test Function...2-9Setting the Shadow RAM...

Follow these steps to remove the subassembly:1.Remove the front panel from the computer by lifting upslightly on the three clips at the top of the pan

Grasp the connector and pull it straight up to remove itfrom the socket. Do not pull only on the cable.3.The diskette drive cable is connected to the

5.Raise the front of the subassembly, as shown below.6.Reach back underneath the subassembly and disconnectthe two power supply cables connected to th

7.Lift the entire subassembly out of the computer andcarefully place it on your work surface.Replacing the SubassemblyFollow the steps below to replac

There are four corresponding tabs on the inside backpanel of the computer which fit into the openings in thesubassembly slots.tabsLift up the subassem

2.Hold up the front of the subassembly at a slight angleand arrange the ribbon cables so they curve underneaththe subassembly and extend out its left

3.Position power supply connector P4 so the large tab onthe connector faces the right side of the computer.Beginning with the six pins toward the back

5.Carefully lower the front of the subassembly onto thecomputer. Make sure that all four tabs on the back of thecomputer are inserted into the slots o

Guide the tabs on the front of the subassembly over theopening in the front of the computer so the two smalltabs sit behind the opening and the large

Both the diskette drive and hard disk drive sockets arelocated on the main system board on the left side of thesubassembly, as shown below.Both socket