Mitsubishi Electronics MS540 4/3, To install a SIMM

MEMORY UPGRADES

Caution

If you are unfamiliar with the recommended anti-static precautions and/or the process of removing the system unit cover, refer to Appendix A, “The System Unit”.

3.Remove carefully the floppy disk drive module which restricts access to the SIMM sockets (first identifying the way all cables are fitted) by disconnecting the cables, loosening the screws and lifting out.

4.Compare the current configuration of SIMMs with the configuration for the memory upgrade you intend to install. If necessary, remove the existing SIMMs, before going on to install the new SIMMs.

To install a SIMM

1.Take the SIMM out of its anti-static packaging. Hold it by its edges and avoid touching the metal contacts.

Note that the SIMM is not symmetrical. There are small notches in one end and also slightly off-centre along the connection edge, as shown in the picture above, it will only fit into the socket one way.

2. Place the SIMM in the socket at a 15o angle to the vertical.

4/3

Contents

Page Page Page OWNER’S MANUAL CONTENTS THE BEGINNING THE SYSTEM DRIVES EXPANSION MEMORY UPGRADES TROUBLESHOOTING THE SYSTEM UNIT SYSTEM MOTHERBOARD SYSTEM BIOS AND SET-UP 1 THE BEGINNING Connections Turning on and booting the computer Energy Saving features Installing other software Turning the power off Cleaning and Transporting 1/7 1/8 Transporting the computer Never 1/9 2 THE SYSTEM DRIVES Using the floppy disk drive Hint Inserting a floppy disk 2/2 Using a CD-ROMdrive Inserting a compact disc 2/4 The hard diskdrive The primary hard drive A secondary hard drive 2/6 Software backup 3 SYSTEM EXPANSION Configuring the card ISA Interrupt request level (IRQ) IRQ Default assignment Available 3/3 Direct memory access (DMA) channel DMA Base input/output (I/O) port address 3/4 I/O ports Base memory address 3/5 Installing the card 3/7 Do not use excessive force 3/8 4 MEMORY UPGRADES Adding more system memory Installing and removing SIMMs 4/2 To install a SIMM 4/3 Do not use excessive force Adding more cache memory 4/6 Adding more video memory It is extremely important that the chips are fitted the right way round 4/8 5 MULTIMEDIA The CD-ROMdrive Photo CDs 5/2 The sound connections Remote control The Remote Control Changing the batteries Television (if fitted) Radio card (If fitted) 6 TROUBLESHOOTING Problems when starting 6/2 Restoring the Software Troubleshooting checklist two AA 6/4 The system’s disk drives Television card (if fitted) Software security your first 6/7 A THE SYSTEM UNIT Anti-staticprecautions Opening the system unit The components inside A/3 Drive Specification summary Floppy disk drive CD-ROMdrive A/4 Physical Characteristics (system unit) Weight and dimensions Temperature and Humidity ranges Voltage range B SYSTEM MOTHERBOARD Board Specification Audio Drives Ports Expansion B/2 Board layout B/3 System Ports Keybord and Mouse ports Monitor port PIN Output Monochrome Jumper configurations BIOS reprogramme Clear BIOS settings VESA option must be replaced Pin 1Â Â Pin 1 Â Â Pin 1Â Â Pin 1 Â Â Â Pin 1Â Â Â PL24, PL28 Replacing the CMOS battery To replace the battery Do not System BIOS and set-up’ B/9 C SYSTEM BIOS AND SET-UP Entering Set-up Control keys Set-upstarts on its own Opening screen Sub-menupages HDD’s Compatible High performance Extended System security C/6 User Password changeable by User Start Options C/7 Diskette drive 0 ; Hard disk 0 (i.e. A: then C:) Quick Enhanced It is not an infallible check Advanced Set-up Enabled ISA Legacy Resources Available Not available C/9 Power Management C/10 Error Messages