Mitsubishi Electric PENTIUM PCL5100, User Manual

Page 1: ...GUIDE Intel and Pentium and Pentium MMX are registered trademarks of Intel Corporation Information contained in this document is subject to change without notice and does not represent a commitment on the part of Mitsubishi Electric http www mitsubishi computers com ...

Page 2: ...ricity Observe strict antistatic precautions at all times when handling the board or any components that you are removing or fitting to it CAUTION Do not alter any jumpers or switch settings other than those identified here unless told to by your Mitsubishi Electric PC supplier or an authorised maintainer Otherwise you may damage the system processor the motherboard or both NOTE After you have upg...

Page 3: ...oard power connector 12 Primary E IDE connector 3 VESA AMC feature connector 13 CMOS battery 4 PSU logic connector 14 Wake on LAN connector 5 DIMM sockets 15 1 44 Mb diskette drive connector 6 Processor fan sink connector 16 Second serial port connector 7 Processor ZIF socket 17 Modem audio connector 8 Riser board connector 18 CD audio connector 9 Internal speaker connector 10 Front panel connecto...

Page 4: ... PL18 CAUTION Do not change these jumpers unless you have upgraded the processor If they are set incorrectly the processor and other vital motherboard components could be destroyed The BF0 and BF1 jumpers on jumper block PL19 may be fitted in the High 1 or Low 0 position the FS PW2 PW1 and PW0 jumpers may simply be either fitted across both pins In or not Out See the table on the next page for the...

Page 5: ...0 MHz Low High Out Out Out Out Pentium MMX 233 MHz High High Out Out Out Out On board video disabling PL19 If you install a video adapter expansion card the computer should automatically detect this and disable the on board video adapter If for some reason this does not happen and you experience problems with a newly fitted card you can manually disable the on board video adapter by removing the V...

Page 6: ... jumper to the 2 3 position for a few moments while the system is turned off then returning it to the normal 1 2 position Clearing CMOS PL11 CMOS battery connected default 1 2 CMOS battery disconnected 2 3 BIOS reprogramming PL3 Enabled default 1 2 PROG Disabled 2 3 DIS Power Mode light colour PL201 Normally the Power Mode light is red when the system is in Off mode If you move the jumper on block...

Page 7: ...ial port 2 BS Serial port 1 BS Audio JS Diskette controller BS Parallel port BS Real time clock On board video JS USB BS Mouse BS Co processor Primary E IDE BS Secondary E IDE BS Components DMA channels 0 1 2 3 4 5 6 7 Audio JS Diskette controller BS Parallel port ECP BS DMAC daisy chain Fixed assignment Usual assignment BIOS alternative PnP alternative BS Can be disabled by BIOS Setup JS Can be d...

Page 8: ...ing If you use any other type of DIMM you risk damaging the motherboard Fitting and removing DIMMs Before you begin 1 Turn off the computer and unplug all power cords 2 Take suitable anti static precautions and remove the system covers Take suitable antistatic precautions at all times while the motherboard is exposed 3 Remove any expansion cards that impede access to the DIMM sockets To install a ...

Page 9: ...t of the socket 2 Pull the DIMM clear of the socket Hold the DIMM by its ends and avoid touching the metal contacts 3 Place the DIMM in suitable anti static packaging When you have finished replace any expansion cards you needed to remove then refit the system unit panels If the computer does not automatically detect the new memory the first time you turn it on start the BIOS Setup utility go to t...

Page 10: ...eo memory upgrade sockets see the motherboard diagram at the start of this chapter 4 Unpack the upgrade kit and lay the memory chips out on an antistatic surface Hold each chip by its edges and be careful not to touch the metal pins 5 One by one insert the chips in the sockets It is important that the chips are fitted the right way round Some chips have a single bevelled edge at one end Others hav...

Page 11: ...e hot wait at least 15 minutes for it to cool down WARNING The processor its fan sink if one is fitted combined fan and heat sink and some of its neighbouring components can get very hot You may burn your fingers if you attempt to remove the processor before it has cooled down 6 Unplug the power cable of the processor s fan sink from the motherboard Note where the cable plugs in because you may ne...

Page 12: ...st remove the two jumpers from jumper block PL18 next to the socket Use the illustration at the start of this chapter to locate this jumper block 12 Ensure that the securing lever on the ZIF socket is still in the upright position 13 Take the upgrade processor out of its anti static packaging Hold the processor by its edges and avoid touching the metal pins The processor and the ZIF socket are key...

Page 13: ...just enough pressure to overcome the resistance offered by the lever 16 Reposition the fan sink on top of the new processor You may have either of two different types of fan sink Note that the larger fan sink overhangs the socket at one side 2 1 2 1 17 Re fasten the fan sink s retention clip to the front and back of the ZIF socket ...

Page 14: ... described at the start of this chapter When you have finished replace any expansion cards you needed to remove then refit the system covers Replacing the configuration battery The computer keeps a record of its current hardware configuration in a CMOS memory chip which is sustained by a small battery This battery has a life of up to 5 years If you find that you have to reconfigure the computer ev...

Page 15: ...conductive implement to remove the battery If a short circuit is accidentally made between the battery s positive and negative terminals the battery may explode 5 Check that the replacement battery looks the same as the battery you have removed 6 Taking care not to touch the top or bottom surface of the battery pick up the replacement with the positive terminal upwards Press the battery into the h...

Page 16: ...ng options Configuring the computer is necessary to ensure that the software you use can recognise and exploit the hardware s capabilities The current configuration is kept in a special area of memory called CMOS memory and maintained by a battery so that the configuration is preserved even while the computer is switched off Whenever the computer is turned on the BIOS power on self test POST routi...

Page 17: ... fault is indicated make a note of any error messages and the current configuration settings before calling an authorised maintainer The CMOS battery may be running down This may cause spurious POST error messages If this happens every time you turn on the computer you may have to change the battery The computer s configuration may have changed for example by the addition of more system memory or ...

Page 18: ... selection from the menu bar or enter a sub menu HOME or END Move the cursor to the top or bottom of the current menu PAGE UP or PAGE DOWN Move the cursor to the next or previous page of the current menu F9 Restore the default settings for the fields on the current menu F10 Save the changes you ve made and exit from BIOS Setup CAUTION The default BIOS settings may not be appropriate for your parti...

Page 19: ... this screen is on display a message at the bottom says Press F2 to enter setup or ESC to enter Boot Menu Even if this message is not displayed you can press the ESC key and this menu will appear This menu can be used to temporarily use another drive or device to boot your system for example a bootable CD ROM without having to enter the BIOS setup Simply use the up and down arrows to make a select...

Page 20: ...en up the system unit and check that all internal signal and power cables are securely connected If the problem persists contact your supplier or authorised maintainer Diskette drive A error Drive A is present but fails the POST diskette tests Check that the drive is defined correctly in BIOS Setup If necessary open the system unit and check that the drive s signal ribbon cable is connected System...

Page 21: ...y the address xxxx If it cannot locate the address it displays Previous boot incomplete default configuration used The previous POST did not complete successfully POST loads default values and offers to start BIOS Setup If the failure was caused by incorrect values and they are not corrected the next boot will likely fail too Real time clock error Enter BIOS setup and check the System Time and Sys...

Page 22: ...ncluding video ROM fails Turn off the computer for 30 seconds and then try again If the fault persists make a note of the error code if any and call your supplier or authorised maintainer Code Beeps Test which failed 16 1 2 2 3 BIOS ROM checksum 20 1 3 1 1 DRAM refresh 22 1 3 1 3 8742 keyboard controller 2C xxxx 1 3 4 1 RAM failure on address line xxxx 2E xxxx 1 3 4 3 RAM failure on data bits xxxx...

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