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Installing a Numeric Coprocessor
Your computer has a socket for a numeric (math) coprocessor.
You can install either a Cyrix Cx387SLC or an Intel 387SX/SL
multifrequency coprocessor. Installing a numeric coprocessor
speeds up your computer’s numeric calculations and graphic
displays when you are using certain application software.
The coprocessor chip can be easily damaged and is expensive to
replace; so if you don’t feel confident about installing it
yourself, ask your Authorized Epson Servicer for assistance.
To install the coprocessor, follow these steps:
1.
Remove the access cover as described on page 5-11.
2. Place the coprocessor onto the socket so that the round
indentation indicating pin 1 is in the upper right comer.
Then press it down firmly.
5-16
Connecting Optional Devices
- FCC COMPLIANCE STATEMENT 2
- FOR AMERICAN USERS 2
- FOR CANADIAN USERS 2
- IMPORTANT NOTICE 3
- DISCLAIMER OF WARRANTY 3
- COPYRIGHT NOTlCE 3
- All rights 3
- TRADEMARKS 3
- Important Safety Instructions 4
- Contents 8
- Chapter 3 9
- Chapter 4 10
- Chapter 5 10
- Appendix A 11
- Appendix B Specifications 11
- Introduction 12
- Where to Get Help 13
- What This Manual Covers 14
- 4 introduction 15
- Setting Up the Computer 16
- Opening the Screen 17
- Front View 18
- Connecting the AC Adapter 23
- Turning On the Computer 26
- Running SETUP 28
- Starting the SETUP Program 29
- SETUP options 30
- Running SETUP 2-3 30
- Setting the Date and Time 31
- Setting the Trackball 32
- Setting the Shadow RAM 33
- Shadow RAM options 34
- Security options 34
- Access 34
- Running SETUP 2-7 34
- 2-8 Running SETUP 35
- Running SETUP 2-9 36
- Defining Your Own Drive Type 37
- Checking System Memory 38
- Setting the Booting Sequence 39
- Setting the Virus Warning 39
- Setting the Default Speed 40
- 2-14 Running SETUP 41
- W/O SAVE 42
- Running SETUP 2-15 42
- Post-SETUP Procedures 43
- Using Your Computer 44
- Taking Care of the Computer 45
- Using the Password Function 45
- Typing the Password 46
- Using the Keyboard 47
- Special Keys 48
- Using F11 and F12 49
- Display Key Combinations 50
- Stopping a Command or Program 51
- Resetting the Computer 52
- Turning Off the Computer 53
- Changing the CPU Speed 54
- Adjusting the LCD Screen 55
- Using the Trackball 56
- Using Diskettes 57
- Inserting 57
- Removing Diskettes 57
- Write-protecting Diskettes 58
- Making Backup Copies 59
- Using a Hard Disk 60
- Saving Battery Power 62
- Using PC Cards 63
- Inserting a PC Card 64
- Using Memory 65
- Powering the Computer 67
- Using the Battery 68
- Replacing the Battery 68
- Recharging the Battery 70
- Low Battery Indicator 72
- Using the Suspend Mode 73
- Connecting Optional Devices 75
- VIDEO, PRINTER 76
- Connecting a Parallel Printer 78
- Connecting a Serial Device 79
- Using the EXT KB Port 81
- If you are using an external 82
- Installing a Memory Module 86
- Replacing the Access Cover 91
- Lotus 1-2-3, Version 2.x 94
- WordPerfect, Version 5.1 96
- O display the Setup 97
- VGA appears on the 97
- Display Status 98
- Select Option 99
- Standby Timer 100
- Using the VGA Utilities 101
- VGACONF parameters 102
- Select RGB weighting 2:9:5 103
- Troubleshooting 104
- Identifying Your System 105
- The Computer Won’t Start 106
- Error Messages 106
- Battery Problems 107
- AC Adapter Problems 108
- The LCD Screen Is Blank 109
- Troubleshooting A-7 110
- The Computer Locks Up 111
- Password Problems 111
- Diskette Problems 112
- A-10 Troubleshooting 113
- Hard Disk Problems 114
- Software Problems 115
- Printer Problems 116
- PC Card Problems 116
- A-14 Troubleshooting 117
- External Keyboard Problems 118
- Memory Module Problems 118
- Numeric Coprocessor Problems 119
- CMOS Battery Problems 119
- Specifications 120
- Interfaces 121
- Monochrome 122
- Physical Dimensions 123
- Humidity 124
- Acoustical 124
- Environmental Requirements 124
- Temperature 124
- NEMA 5-15-P 125
- Glossary 126
- Baud rate 127
- Coprocessor 128
- CPU speed 129
- Diskette 130
- Floppy disk 131
- Input/Output (I/O) port 132
- Interface 132
- Parallel 134
- Partition 135
- Pathname 135
- See also Command prompt 136
- See BIOS 137
- See also Parameter 138
- Glossary 13 138
- Connecting 141
- OS/2, 1-12 144
- 5-7, 5-9-11 144
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