Intel, Pentium ® and Pentium ® II are registered trademarks of Intel Corporation. Microsoft, MS-DOS, Windows ® 95 and Windows ® NT are registered trademarks of Microsoft Corporation in the US and other countries. Other trademarks mentioned within this document and not listed above are the properties of their respective owners.
CONTENTS Safety and Regulatory Notices General Standards Legalities Power connection information Notation conventions System Description and Installation Feature summary Dimensions Front panel controls and indicators Back panel connectors and features Selecting a site Power supply Before installing options Secondary fan specifications Auxiliary speaker specification Chassis and Components Before you begin...
C o n t e n t s PCI/IDE interface I/O features CMOS battery 3/10 Fan Connectors 3/11 USB Interface 3/12 Speaker 3/12 Audio Subsystem and connections 3/13 Hardware Monitor Option 3/15 Front Panel Connections 3/16 Motherboard Resources 3/17 Upgrading Processor How to Install Memory Memory Table...
C o n t e n t s Figures/Illustrations chapter/page Front Panel Controls and Indicators Back Panel Connectors and Features Check the Input Voltage Setting Removing the Top Cover Removing the Access Side Cover Removing the Non-Access Side Cover Removing the Bezel Removing the Expansion Slot Cover Bracket Removing an Expansion Slot Cover Installing an Add-in Card...
C o n t e n t s Figures/Illustrations chapter/page Telephony Connector A 3/14 Wavetable Connector 3/14 Telephony Connector B 3/14 Audio Line-in Connector 3/15 Chassis Security Connector 3/15 Front Panel Connections 3/16 Removing the Heatsink support and Processor Installing the Processor Installing the Heatsink support Bar Location of SIMM Sockets Installing a SIMM...
SAFETY AND REGULATORY NOTICES Electrical The computer uses a safety ground and must be earthed. The system unit AC power cord is its ‘disconnect device’. Ensure that the system unit is positioned close to the AC power outlet and that the plug is easily accessible.
Standards Safety EN 60 950 (1992) plus amendments 1 (1993) and 2 (1993). Common modifications, special National Conditions and Deviations. Electro-magnetic Compatibility (EMC) This product complies with the following European EMC standards: Emissions EN55022 Class B Immunity EN50082 Level 1 German Acoustic Noise Regulation Sound power level is less than 70 dB(A) according to DIN 45635 Part 19 (ISO 7779).
Power connection information Typical AC plugs 250V 125V 250V 250V 250V BS1363A SHUCO NEMA 5-15P SRAF 1962/DB16/87 ASE 1011 U. K. Austria Belgium Taiwan Denmark Switzerland Finland France Thailand Italy Germany Japan Sweden Norway Holland Canada Procedure CAUTION Any ancillary equipment using an AC power supply cable should be earthed. The power supplies in the computer and the monitor are correct for the country in which the system is first sold.
Power Cable Connections - UK ONLY This equipment is supplied with an AC power lead that has a moulded, non-removable, 3-pin AC plug. Always replace the fuse with one of the same type and rating which is BSI or ASTA approved to BS1362. Always refit the fuse cover, never use the plug with the fuse cover omitted.
SYSTEM DESCRIPTION AND INSTALLATION This chapter provides a basic description of the LS700, along with simple installation information. Feature Summary ♦ A removable carrier with bays that can accommodate one of the following variations: ◊ Three half-height full-width peripherals ◊ One full-height and one half-height full-width peripherals ◊...
S y s t e m d e s c r i p t i o n a n d i n s t a l l a t i o n Back Panel Connectors and Features Figure 2 shows a typical configuration including a power supply and external motherboard I/O connectors.
S y s t e m d e s c r i p t i o n a n d i n s t a l l a t i o n Selecting a Site Choose a site that is: ♦...
S y s t e m d e s c r i p t i o n a n d i n s t a l l a t i o n Figure 3. Select the Input Voltage Setting W W A A R R N N I I N N G G The power cable shipped with the system is correct for the country of supply.
S y s t e m d e s c r i p t i o n a n d i n s t a l l a t i o n Secondary Fan Specifications This chassis has been tested for adherence to thermal specifications using a single system fan and a full complement of typical add-in cards and peripherals.
CHASSIS AND COMPONENTS This chapter describes how to take apart and reassemble the chassis and the major components. Before You Begin ♦ Be sure to do each procedure in the correct order. ♦ Set up an equipment log to record the computer’s model and serial numbers, all installed options, and other information about the computer.
C h a s s i s a n d c o m p o n e n t s Chassis Covers Removing the Top Cover Observe the precautions in ‘Before You Begin’. If you are removing the cover for the first time, you may need to remove the plastic plug in the padlock hole (see Figure 4).
C h a s s i s a n d c o m p o n e n t s Installing the Top Cover Observe the precautions in ‘Before You Begin’. Check that you have not left any tools or loose parts inside the chassis.
C h a s s i s a n d c o m p o n e n t s Figure 5. Removing the Access Side Cover Installing the Access Side Cover Observe the precautions in ‘Before You Begin’. Check that you have not left any tools or loose parts inside the chassis.
C h a s s i s a n d c o m p o n e n t s Removing the Non-Access Side Cover The non-access side is the left side of the chassis when viewed from the front. Observe the precautions in ‘Before You Begin’.
C h a s s i s a n d c o m p o n e n t s Installing the Non-Access Side Cover Observe the precautions in “Before You Begin.” Holding the side cover at a slight angle, insert the tabs at the front of the cover into their slots.
C h a s s i s a n d c o m p o n e n t s Figure 7. Removing the Bezel Installing the Bezel Observe the precautions in ‘Before You Begin’. Lift the front of the chassis slightly and align the bezel with the chassis.
C h a s s i s a n d c o m p o n e n t s Remove the two screws that hold the slot cover bracket to the chassis (Figure 8, A). Swing the bracket away from the chassis and remove it (Figure 8, B).
C h a s s i s a n d c o m p o n e n t s Installing an Expansion Slot Cover Observe the precautions in ‘Before You Begin’. Using a standard metal slot cover, insert the cover into the slot.
C h a s s i s a n d c o m p o n e n t s Figure 10. Installing an Add-in Card Removing an Add-in Card Observe the precautions in ‘Before You Begin’. Disconnect any cables attached to the add-in card you are removing.
C h a s s i s a n d c o m p o n e n t s Peripheral Carriers and Devices Removing the Floppy Diskette Drive Carrier Observe the precautions in ‘Before You Begin’. Remove the top cover. Remove the access side cover.
C h a s s i s a n d c o m p o n e n t s Installing the Floppy Diskette Drive Carrier Observe the precautions in ‘Before You Begin’. Insert the tabs on the carrier into their slots on the main peripheral carrier.
C h a s s i s a n d c o m p o n e n t s Figure 12. Removing the main Peripheral Carrier Installing the main Peripheral Carrier Observe the precautions in ‘Before You Begin’. Place the chassis on its back. Slide the peripheral carrier into the chassis.
C h a s s i s a n d c o m p o n e n t s Removing the floppy Diskette Drive Observe the precautions in ‘Before You Begin’. Remove the drive carrier. Remove the three screws holding the diskette drive to the carrier (see Figure 13).
C h a s s i s a n d c o m p o n e n t s Installing a floppy Diskette Drive Observe the precautions in ‘Before You Begin’. Remove the diskette drive carrier. Remove the diskette drive from its protective wrapper and place it on an antistatic surface.
C h a s s i s a n d c o m p o n e n t s Figure 14. Installing a Hard Drive in the Carrier Removing a Hard Drive from the Diskette Drive Carrier Observe the precautions in ‘Before You Begin’. Remove the floppy diskette drive carrier.
C h a s s i s a n d c o m p o n e n t s Observe the precautions in ‘Before You Begin’. Remove the non-access side panel. Remove the power supply (see later in this chapter). Remove the drive from its protective wrapper and place it on an antistatic surface.
C h a s s i s a n d c o m p o n e n t s Removing a Hard Drive from Behind the Power Supply W W A A R R N N I I N N G G This procedure should be done only by qualified technical personnel.
C h a s s i s a n d c o m p o n e n t s Connect power and data cables to the device. Figure 16. Installing a Hard Drive in the main Peripheral Carrier Removing a narrow Device from the main Peripheral Carrier Observe the precautions in ‘Before You Begin’.
C h a s s i s a n d c o m p o n e n t s Installing Full-width Devices Installing a full-width Device. N N O O T T E E A magnetic Phillips screwdriver will be useful for this procedure, but keep it well clear of any loose floppy disks or tape cartridges.
C h a s s i s a n d c o m p o n e n t s Figure 17. Install/remove a full-width Peripheral Device. Removing a full-width Device. Observe the precautions in ‘Before You Begin’. Switch off the computer and remove the power cable. Remove the top and both side covers.
C h a s s i s a n d c o m p o n e n t s Other Chassis Components Removing the Fan/Card Guide Module Observe the precautions in ‘Before You Begin’. Remove any add-in cards that block the module. If there is a fan installed in the module, disconnect the fan’s power cable from the motherboard.
C h a s s i s a n d c o m p o n e n t s Connect the fan’s power cable to the power supply or the motherboard according to the manufacturers instructions. ◊ See the motherboard chapter for the fan connector locations.
C h a s s i s a n d c o m p o n e n t s Remove the top cover. Remove the access side cover. Insert the speaker in the location shown. Connect the speaker wires to the motherboard. ◊...
C h a s s i s a n d c o m p o n e n t s Installing the Power Supply W W A A R R N N I I N N G G This procedure should be done only by qualified technical personnel.
C h a s s i s a n d c o m p o n e n t s Figure 23. Mounting Screw Holes (shown in black) C C A A U U T T I I O O N N Put the motherboard immediately onto a grounded, static-free surface or place it into an antistatic protective wrapper.
SYSTEM MOTHERBOARD This chapter describes the features of the system motherboard, setting jumpers other relevant information. Microprocessor This motherboard supports 233 MHz and 266 MHz Intel ® ™ Pentium II processors with MMX technology and 256 KB or 512 KB secondary (L2) cache. The Pentium II processor is packaged in a Single Edge Contact (S.E.C.) cartridge that mounts in the Slot 1 processor connector on the motherboard.
S y s t e m m o t h e r b o a r d Motherboard layout Figure 24. Motherboard Components ISA connectors Battery CD-ROM audio connector M. SIMM sockets Telephony connector A N. Floppy drive connector O. Primary IDE connector D.
S y s t e m m o t h e r b o a r d Connectors Figure 25. Back Panel I/O Connectors PS/2 connector (mouse or keyboard) Serial port 1 connector Parallel port connector G. Serial port 2 connector MIDI/game port connector H.
S y s t e m m o t h e r b o a r d ♦ Reset CMOS RAM to the default values ♦ Disable or enable access to the Setup program ♦ Configure the motherboard for a different processor speed Figure 26.
S y s t e m m o t h e r b o a r d Jumpers for BIOS Setup Functions The above table shows jumper settings for Setup program functions and figure 27 shows the location of the jumper block.
S y s t e m m o t h e r b o a r d J9C1 Replace the cover and turn on the computer. How to Clear CMOS RAM Normally, you should only have to do this procedure after you upgrade the BIOS.
S y s t e m m o t h e r b o a r d J9C1 Replace the cover and turn on the computer. How to Clear the User or Administrator Password Observe the precautions in “Before You Begin” (see page 1 of chapter 2).
S y s t e m m o t h e r b o a r d PCI/IDE Peripheral Interface The motherboard has a high-speed, 32-bit PCI/IDE interface that supports the following: ♦ Up to four PCI/IDE hard drives on the PCI bus ♦...
S y s t e m m o t h e r b o a r d ♦ Industry standard diskette drive controller that supports 720 KB, 1.44 MB, and 2.88 MB floppy drives (at 135 tracks per inch); and the older 360 KB and 1.2 MB drives. BIOS Features The BIOS, from American Megatrends Inc.
S y s t e m m o t h e r b o a r d CMOS Battery A battery on the motherboard keeps the clock and values in CMOS RAM current when your computer is turned off. The average battery life is between 3 and 5 years. W W A A R R N N I I N N G G The CMOS battery is a lithium type.
S y s t e m m o t h e r b o a r d Install the new battery in the socket. Replace the computer covers. Fan Connectors The motherboard has connectors for two fans. Both connectors have the same pin-outs. See overleaf for details. Signal Name Ground +12 V...
S y s t e m m o t h e r b o a r d USB Interface Support The USB ports permit the direct connection of two USB peripherals without an external hub. If more devices are required, an external hub can be connected to either of the built-in ports.
S y s t e m m o t h e r b o a r d Audio Subsystem The onboard audio subsystem is based on the Yamaha OPL family of single-chip audio controllers (YM 715). The audio subsystem provides the digital audio and analog mixing functions needed for recording and playing sound on personal computers.
S y s t e m m o t h e r b o a r d Figure 31. Telephony Connector A Signal Name J2F1 Ground Mono in Mono out Figure 32. Wavetable Connector Signal Name Waveright J2F2 Ground Waveleft Ground Ground No connection...
S y s t e m m o t h e r b o a r d Figure 34. Audio Line In Connector J3F1 Signal Name Left Line-in Ground Ground Right line-in (mono) OM05699 Hardware Monitor Option The hardware monitor option features the following: ♦...
S y s t e m m o t h e r b o a r d Front Panel Connections The motherboard has connectors for controls and indicators typically located on the front panel of the computer. A jumper on pins 26/27 connects the on-board speaker. Figure 36.
S y s t e m m o t h e r b o a r d Connector Signal Name E. Infrared CONIR (consumer IR) IrTX (transmit) Ground IrRX (receive) +5 V F. Sleep switch +5 V SLEEP G. Power switch Ground SW_ON# Motherboard Resources...
S y s t e m m o t h e r b o a r d Address Range Address Range Size Description (Decimal) (hex) 639K-640K 9FC00-9FFFF Extended BIOS Data (moveable by memory management software) 512K-639K 80000-9FBFF 127K Extended conventional memory 0K-512K 00000-7FFFF...
S y s t e m m o t h e r b o a r d Address (hex) Size Description 0220 - 022F 16 bytes Audio 0240 - 024F 16 bytes Audio 0278 - 027F 8 bytes Parallel Port 2 0295 1 byte Hardware monitor...
S y s t e m m o t h e r b o a r d Address (hex) Size Description 03F7, bits 6:0 7 bits Pri. IDE Chan. Status Port 03F8 - 03FF 8 bytes Serial Port 1 04D0 - 04D1 2 bytes Edge/level triggered PIC 0530 - 0537...
S y s t e m m o t h e r b o a r d DMA Channels Data Width System Resource 8- or 16-bits Audio if present, else parallel port 8- or 16-bits Audio if present, else available 8- or 16-bits Floppy drive 8- or 16-bits...
UPGRADING Processor ® This computer uses the Intel Pentium II processor, which is supplied as a module complete with heatsink. At the time of writing processors rated at 233Mhz and 266Mhz are available. Remove the Installed Processor To remove the installed processor, follow these steps: Observe the precautions in ‘Before You Begin’...
U p g r a d i n g Figure 37. Removing the Heatsink Support Top Bar and the Processor C C A A U U T T I I O O N N Pressing on the motherboard or components during processor removal can cause damage.
U p g r a d i n g Install the Processor To install the processor follow these steps: Insert the processor in the retention mechanism (B) as shown in figure 38. Press down on the processor until it is firmly seated in the Slot 1 connector and the latches (A) on the processor lock into place.
U p g r a d i n g Figure 39. Installing the Heatsink Support Top Set the Processor Speed Jumpers Make sure that motherboard jumpers J9C1-A, J9C1-B, and J9C1-C are set to the correct value for the speed of the processor.
U p g r a d i n g On jumper block J9C1, place the jumpers on the pins as shown below: For a 233 MHz processor: J9C1 For a 266 MHz processor: J9C1 How to Install Memory The motherboard has four 72-pin, tin-lead SIMM sockets that support from 8 MB to 256 MB of memory.
U p g r a d i n g Memory table For a total Install SIMMs of the Install SIMMs of the system following size in both following size in both memory of: sockets of bank 0 sockets of bank 1 8 MB 4 MB Empty...
U p g r a d i n g C C A A U U T T I I O O N N Electrostatic discharge (ESD) can destroy components or severely limit their working life. Follow the recommended antistatic precautions as given in the appendix. Holding the SIMM only by the edges, remove it from its antistatic package.
U p g r a d i n g When the SIMM seats correctly, hold it at each end and gently push the top edge towards the retaining clips of the connector until the SIMM snaps into place. ◊ If the SIMM does not install correctly, gently spread the retaining clips just enough so that you can pull away the top edge of the SIMM and try again.
BIOS AND SETUP This chapter explains how to use the BIOS Setup program. You can use the Setup program to change the computer’s configuration information and boot-up sequence. Setup information is stored in CMOS random access memory (RAM) and is backed up by a battery on the motherboard when power to the computer is off.
B I O S a n d s e t u p Setup Key Description <F1> Brings up a help screen for the current item <Esc> Backs up to the previous screen In the Main, Advanced, Security, or Exit screen causes you to exit, discarding changes <Enter>...
B I O S a n d s e t u p Setup Subscreen This Subscreen is Used To Power Management Configure the computer’s power management Configuration options Plug and Play Configure the computer’s Plug and Play Configuration capabilities Event Logging Configure the computer's event logging functions Configuration Single Bit ECC Events...
B I O S a n d s e t u p Primary IDE Slave Reports if an IDE device is connected to the Primary IDE Slave interface. When selected, this brings up the Primary IDE Slave Configuration subscreen. Secondary IDE Master Reports if an IDE device is connected to the Secondary IDE Master interface.
B I O S a n d s e t u p Floppy Options Subscreen Floppy A: Reports if a floppy drive is connected to the system. Floppy B: Reports if a second floppy drive is connected to the system. Floppy A: Type Specifies the physical size and capacity of the floppy drive.
B I O S a n d s e t u p floppy drives. The following options change the access for all attached floppy drives: ♦ Read/Write (default) ♦ Read Only Primary/Secondary IDE Master/Slave Configuration Subscreens There are four subscreens used to enable IDE devices (e.g., hard disks): ♦...
B I O S a n d s e t u p Heads If IDE Device Configuration is set to User Definable, type the correct number of heads for the installed hard disk. If IDE Device Configuration is set to Auto Configured, this field reports the number of heads for the hard disk.
B I O S a n d s e t u p Multiple Sector Setting Sets the number of sectors transferred by an IDE drive per interrupt generated. The options are: ♦ Disabled ♦ 4 Sectors/Block ♦ 8 Sectors/Block ♦ Auto Detected (default) Check the specifications for the hard disk to determine which setting provides optimum performance.
B I O S a n d s e t u p Second Boot Device Sets which drive the computer checks second to find an operating system to boot from. The options are: ♦ Disabled ♦ Floppy ♦ Hard Disk (default) ♦...
B I O S a n d s e t u p Boot Speed Sets the speed at which the motherboard operates at boot- up. The options are: ♦ Deturbo ♦ Turbo (default) If turbo boot speed is enabled, the motherboard operates at full speed.
B I O S a n d s e t u p ♦ 6 Seconds ♦ 9 Seconds ♦ 12 Seconds ♦ 15 Seconds ♦ 21 Seconds ♦ 30 Seconds When this option is enabled, the BIOS waits the specified time before accessing the first hard drive.
B I O S a n d s e t u p Typematic Rate Sets the speed (in characters per second) at which characters repeat when you hold down a key on the keyboard. The higher the number, the faster the characters repeat. The options are: ♦...
B I O S a n d s e t u p Advanced Screen This section describes the Setup options in the Advanced menu screen. If you select some options from the Advanced screen (for example, Peripheral Configuration), Setup displays a subscreen for the selected option. Subscreens are described in the sections following the description of the Advanced screen options.
B I O S a n d s e t u p Event Logging Configuration When selected, this displays Event Logging Configuration subscreen. Peripheral Configuration Subscreen This section describes the Setup options in the Peripheral Configuration subscreen. When Auto Configured is selected for Primary PCI IDE Interface, Secondary PCI IDE Interface, Floppy Interface, Serial Port 1 Interface, Serial Port 2 Interface, Serial Port 2 IR Mode, or Parallel Port Interface, the computer...
B I O S a n d s e t u p Floppy Interface Enables or disables the floppy drive interface. The options are: ♦ Disabled ♦ Enabled ♦ Auto Configured (default) When Auto Configured is selected, the floppy interface is automatically configured during power up.
B I O S a n d s e t u p Serial Port 2 Interface N N O O T T E E If either serial port address is set, the address it is set to will not appear in the options dialog box of the other serial port. If an ATI mach32 or an ATI mach64 video controller is active, the COM4, 2E8, IRQ3 address will not appear in the options dialog box of either serial port.
B I O S a n d s e t u p Parallel Port Interface Selects the printer port, I/O address, and IRQ of the parallel port. The DMA assignment for the port will be displayed if the Parallel Port Type is set to ECP. The options are: ♦...
B I O S a n d s e t u p Audio Interface Enables or disables the onboard audio subsystem. The options are: ♦ Disabled ♦ Enabled (default) Hardware Monitor Interface Enables or disables the hardware monitor. The options are: ♦...
B I O S a n d s e t u p Advanced Chipset Configuration Subscreen This section describes the options in the Advanced Chipset Configuration subscreen. Base Memory Size Sets the size of the base memory. The options are: ♦...
B I O S a n d s e t u p Latency Timer (PCI Clocks) Sets the length of time (in PCI clocks) an agent on the PCI bus can hold the bus when another agent has requested the bus.
B I O S a n d s e t u p APM features require an APM-capable operating system. If this option is set to Disabled, only the Auto Start On AC Loss option will appear. If this option is set to Enabled, all the following options will appear.
B I O S a n d s e t u p Auto Start On AC Loss Specifies whether the power supply should resume after AC power interruption. The options are: ♦ Disabled ♦ Enabled (default) Plug and Play Configuration Subscreen This section describes the options in the Plug and Play Configuration subscreen.
B I O S a n d s e t u p ISA Shared Memory Size Enables you to specify a range of memory addresses that will be directed to the ISA bus rather than to onboard memory. The options are: ♦...
B I O S a n d s e t u p The ISA Shared Memory Size parameter signifies to the autoconfigure routine that this block of memory is reserved and should not be shadowed. Shadowing copies a block of memory from an add-in card’s ROM to the same address in computer DRAM memory.
B I O S a n d s e t u p N N O O T T E E IRQs 5, 9, 10, and 11 are the default user available IRQs. Depending on the configuration of your computer, other IRQs could be listed.
B I O S a n d s e t u p N N O O T T E E If set to On Next Boot, this option reverts to the default on the next pass through POST. Mark Existing Events as Read Marks all events already in the log as having been not read (Do Not Mark) or read (Mark).
B I O S a n d s e t u p Time of Last Occurrence Reports the time when the last single-bit ECC error occurred. Total Count of Events/Errors Reports the total number of single-bit ECC errors in the log. Memory Bank with Errors Reports the memory bank that contained the last single-bit ECC error.
B I O S a n d s e t u p Time of Last Occurrence Reports the time when the last parity error occurred. Total Count of Events/Errors Reports the total number of parity errors in the log. Memory Bank with Errors Reports the memory bank that contained the last parity error.
B I O S a n d s e t u p To restrict who can boot the computer, set the user password. The computer will prompt the user for this password before booting. If you set the administrative password only, the computer will boot without prompting the user for a password.
B I O S a n d s e t u p User Privilege Level This option appears when an administrative password is set. User Privilege Level sets the level of user mode access to the Setup program. This option can only be set in administrative mode.
B I O S a n d s e t u p Security Hot Key (CTRL-ALT-) Sets a hot key that, when pressed, locks the keyboard until the user password is entered. The keyboard LEDs flash to indicate that the keyboard is locked. When you enter the user password, you do not have to press the <Enter>...
B I O S a n d s e t u p <F6> key anywhere in the Setup program to discard any changes to Setup without exiting the program. This option loads the CMOS RAM values that were present when the computer was turned on. Note down your settings for reference Use this area to make a note of your BIOS settings as they are when you first use the system.
TROUBLESHOOTING This chapter offers advice if you suspect a fault with your computer. It is concerned mainly with problems caused by the computer itself, if there are problems with software, read the software guide or contact the software supplier. Make a note of any symptoms, error codes, or display messages before calling your supplier or maintenance provider Problems when starting...
T r o u b l e s h o o t i n g If POST detects a hardware fault, one or more POST error codes and messages are displayed. Your first action should be to turn off the computer, wait at least 30 seconds, and then turn it on again to see if the error is transitory or persistent.
T r o u b l e s h o o t i n g Beep Codes The computer uses special audio beep codes to signal certain hardware faults. One long beep followed by several short beeps indicates a video problem. There may be no display on the screen. Beeps Error Message Description Refresh Failure...
T r o u b l e s h o o t i n g Connections Check that all power and signal cables are securely connected to the correct port on the computer. The two serial ports appear identical. If you have a problem, make sure that the cable is connected to the port you are trying to use.
T r o u b l e s h o o t i n g The system’s disk drives Floppy disk drive If you have problems accessing a diskette or floppy disk, check that it is inserted correctly, that it has been correctly formatted, that it is not write-protected, and that the permissions assigned by the BIOS allow the intended access.
T r o u b l e s h o o t i n g Error Messages Some of these messages may indicate a serious fault with the system and may cause the POST to halt. If the message persists, make a note of it and call your supplier or authorised maintainer.
T r o u b l e s h o o t i n g Message Explanation PCI Memory Conflict Two devices requested the same resource, resulting in a conflict. Primary Boot Device Not Found The designated primary boot device (hard disk drive, diskette drive, CD-ROM drive, or network) could not be found.
T r o u b l e s h o o t i n g Error Message Explanation CMOS Checksum Failure After CMOS RAM values are saved, a checksum value is generated for error checking. The previous value is different from the current value. Run Setup.
T r o u b l e s h o o t i n g Error Message Explanation KB/Interface Error There is an error in the keyboard controller Off Board Parity Error Parity error in memory installed in an expansion slot.
ANTISTATIC PRECAUTIONS Static electricity can cause permanent damage to electronic components. You should be aware of this risk, and take precautions against the discharge of static electricity into the computer. Static electricity can be generated by moving on a chair, brushing against desks or walls, or simply walking across an ordinary carpet.
A n t i s t a t i c p r e c a u t i o n s ♦ Handle static-sensitive items with extreme care. Hold expansion cards and add-on components only by their edges, avoiding their electrical contacts. Never touch the components or electrical contacts on the motherboard or on expansion cards.
CLEANING AND TRANSPORTING Cleaning the computer Do not use solvents or abrasives, they might damage the system unit surfaces. Do not use aerosols or sprays near any part of the system, in particular, air vents or grills, ports, or removable-media drives, as microscopic droplets can remain in the air for some time and then be sucked in when you switch on and cause irreparable damage.
C l e a n i n g a n d T r a n s p o r t i n g Regularly check the keyboard cable for wear and tear, particularly near table or shelf edges. Take care not to spill any liquid or drop small objects, e.g. paper clips or staples, onto the keyboard.
C l e a n i n g a n d T r a n s p o r t i n g or dust that has collected on the rollers, rotating them to reach all of their surfaces. Use clear water, or water with a mild detergent, to clean the ball.
MITSUBISHI ELECTRIC PC DIVISION APRICOT COMPUTERS LIMITED 3500 PARKSIDE BIRMINGHAM BUSINESS PARK BIRMINGHAM B37 7YS UNITED KINGDOM Tel +44 (0)121 717 7171 Fax +44 (0)121 717 3692 http://www.apricot.co.uk...