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37

Plug and Play: PCI Auto-configuration

The BIOS automatically configures PCI devices and Plug and Play devices. PCI
devices may be onboard or add-in cards. Plug and Play devices are ISA add-in
cards built to meet the Plug and Play specification. Auto-configuration lets a user
insert or remove PCI or Plug and Play cards without having to configure the system.
When a user turns on the system after adding a PCI or Plug and Play card, the BIOS
automatically configures interrupts, the I/O space, and other system resources. Any
interrupts set to Available in Setup are considered to be available for use by the add-
in card.
PCI interrupts are distributed to available ISA interrupts that have not been assigned
to an ISA card or to system resources. The assignment of PCI interrupts to ISA
IRQ’s is non-deterministic. PCI devices can share an interrupt, but an ISA device
cannot share an interrupt allocated to PCI or to another ISA device.  Auto-
configuration information is stored in the extended system configuration data (ESCD)
format.

PCI IDE Support

If Auto is selected as a primary or secondary IDE device in Setup, the BIOS
automatically sets up the two local-bus IDE connectors with independent I/O channel
support.  The IDE interface supports hard drives up to PIO Mode 4 and recognises
any ATAPI devices, including CD-ROM drives and tape drives.  The BIOS
determines the capabilities of each drive and configures them so as to optimise
capacity and performance. To take advantage of the high-capacity storage devices,
hard drives are automatically configured for logical block addressing (LBA) and to
PIO Mode 3 or 4, depending on the capability of the drive. To override the auto-
configuration options, use the specific IDE device options in Setup.  The ATAPI
specification recommends that ATAPI devices be configured as shown in

Table 7

.

Table 7

Primary Cable

Secondary
Cable

Configuration

Drive 0 Drive 1

Drive 0 Drive 1

Normal, no ATAPI

ATA

Disk and CD-ROM for enhanced
IDE systems

ATA

ATAPI

Legacy IDE system with only one
cable

ATA ATAPI

Enhanced IDE with a tape and CD-
ROM or two CD-ROMs

ATA

ATAPI

ATAPI

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Summary of Contents for L440GX+

Page 1: ...ation of the Intel Pentium III processors MMX technology and Viglen expertise make this a formidable computer This manual contains technical information about the Viglen L440GX motherboard and other hardware components inside your computer If you are new to computers we recommend that you read the user guide first If you are an experienced computer user this manual should provide all the informati...

Page 2: ...C Processor connector SECC2 T LVD SCSI connector D DIMM Memory sockets 4 U Hard Drive LED Input E ATX power connector V ISA expansion slot F System fan connector 2A W ICMB connector G Diskette drive connector X Chassis intrusion header H IDE connectors Y PCI expansion slots 6 J Front panel connector 16 pin Z ARO RAID Enabler slot K AT front panel connector AA System fan connector 2B L Battery BB W...

Page 3: ...thout having to resort to buying a whole new case Simply change the I O shield to match the motherboard The I O shield provides external access to PS 2 keyboard and mouse connectors as well as two serial ports one parallel port the VGA port RJ45 Local Area Network LAN connection and two USB ports PRINTER MOUSE KEYBOARD SERIAL 2 SERIAL 1 NETWORK VGA USB Figure 2 NOTE The mouse and keyboard can be p...

Page 4: ...ce support PCI 2 1 compliant Support for 2GB of SDRAM Power Management functions Microprocessor Single or dual Pentium III processor using 2 Slot 1 connector s 100 MHz Front Side Bus speed 512 256 KB second level cache on the substrate in the Single Edge Contact Cartridge Two SECC2 Main memory Four 168 pin DIMM sockets for ECC 3 3V memory only Support for up to 2GB of 100MHz registered SDRAM or 1G...

Page 5: ...nnel Support for Adaptec ARO 1130U2 RAID Port III card built into PCI slot four Integrated Network Interface Intel 82559 PCI LAN adapter For 10 or 100 Mbps TX fast Ethernet networks Integrated PCI Video CL GD5480 64 bit VGA 2MB RAM video memory Support for resolutions up to 1600 x 1200 and support for 16 7 M colors in certain resolutions Expansion slots One ISA slot and Six PCI 2 1 compliant slots...

Page 6: ...SI IEEE standard 754 1985 Microprocessor Packaging The Pentium III processor is a Single Edge Contact Cartridge Two SECC2 that connects to the motherboard through Slot 1 a 242 pin edge connector The Pentium III processor SECC2 consists of Processor card including the processor core and the second level cache burst pipelined synchronous static RAM BSRAM Thermal plate Back cover When the Pentium III...

Page 7: ... Mbit x 72 Unbuffered Only 64 MB 8 Mbit x 72 Both 128 MB 16 Mbit x 72 Both 256 MB 32 Mbit x 72 Both 512 MB 64 Mbit x 72 Registered Only Memory can be installed in one two three or four sockets Memory size can vary between the sockets Memory should be added in order from slot 1 to slot 4 SDRAM Synchronous DRAM SDRAM improves memory performance through memory access that is synchronous with the memo...

Page 8: ...O GTL bus driver support gated transceivers for reduced power operation The PCI interface provides greater than 100 MB s data streamlining for PCI to SDRAM accesses 120 MB s for writes while supporting concurrent processor host bus and PCI transactions to main memory This is accomplished using extensive data buffering with processor to SDRAM and PCI to SDRAM write data buffering and write combinin...

Page 9: ...and N82077 16 byte FIFO PS 2 diagnostic register support High performance digital data separator DDS PC AT and PS 2 drive mode support Keyboard and mouse controller Industry standard 8042AH PC87911compatible General purpose microcontroller 8 bit internal data bus By default the I O controller interfaces are automatically configured during boot up The I O controller can also be manually configured ...

Page 10: ...ftware by jumping to the beginning of the BIOS code and running the Power On Self Test POST Real time Clock CMOS SRAM and Battery The clock provides a time of day clock and a multicentury calendar with alarm features and century rollover The time date and CMOS values can be specified in the Setup program The CMOS values can be returned to their defaults by using the Setup program An external coin ...

Page 11: ...ted to the floppy drive cable s A connector the connector at the end of the cable The BIOS setup utility can be configured to boot firstly from either the LS120 or standard 3 floppy drive Expansion Slots The server board has one full length ISA bus connector The server board has four full length standard PCI PCI 33 32 bit connectors Labeled 1 to 4 in Figure 1 on page 2 The server board also has tw...

Page 12: ...ns fan failure or chassis intrusion To enable accurate monitoring the BMC maintains the nonvolatile Sensor Data Record SDR from which sensor information can be retrieved The BMC provides an ISA host interface to SDR sensor information so software running on the server can poll and retrieve the server s current status SEL contents can be retrieved after system failure for analysis by field service ...

Page 13: ...ended for use only in a secure environment A simple password can be configured to provide a rudimentary level of security The COM2 port on the L440GX can be used for three different purposes Normal serial communications port Console Redirection EMP When the port is being used for EMP purposes and the Access Mode has been set to always active in the BIOS and then it is unavailable for any other use...

Page 14: ...ogy associated with personal computers and with the safety practices and regulatory compliance required for using and modifying electronic equipment Do not operate the system with the cover removed Always replace the cover before turning on the system As the colours of the wires in the mains lead of this computer may not correspond with the coloured markings identifying the terminals in your plug ...

Page 15: ...ed to ground 2 Do not remove the component from its anti static protective packaging until you are about to install it 3 Hold boards by the edges try not to touch components interface strips etc NOTE We recommend that you return your computer to the service department for upgrading Any work carried out is fully guaranteed Upgrades should only be carried out by persons who are familiar with handlin...

Page 16: ...make in this way are as follows Reset the CMOS RAM settings to the default values Clear the system password Recover from a corrupted BIOS during a BIOS upgrade Write Protect Boot Block Enable Disable FRB timer Bypass the chassis intrusion detection BMC forced update mode BMC write enable CAUTION Never remove jumpers using large pliers as this can damage the pins The best way to remove a jumper is ...

Page 17: ... Cirrus Logic 5480 Adaptec 7896 Intel 82371EB iFlash Intel NIC Intel 8440GX Chipset Primary 1 Secondary 2 4 3 1 3 2 6 5 4 LVD SE BMC Forced Update mode Chassis Intrusion Detection FRB Timer J2J1 J3J1 CMOS clear Password Clear Recovery Boot Boot block write protect J4J2 BMC Write Enable Figure 3 CAUTION Do not move the jumper with the power on Always turn off the power and unplug the power cord fro...

Page 18: ...ected 14 15 BIOS boot block is erasable and programmable CAUTION Programming the boot block incorrectly will prevent the system from booting Function Jumper J3J1 Configuration FRB timer 1 2 FRB operation is enabled system will boot from processor 1 if processor 0 fails 2 3 FRB is disabled Chassis intrusion detection 5 6 Switch installed on chassis indicates when the cover has been removed 6 7 Chas...

Page 19: ...rus Logic 5480 Adaptec 7896 Intel 82371EB iFlash Intel NIC Intel 8440GX Chipset Primary 1 Secondary 2 4 3 1 3 2 6 5 4 LVD SE 31 33 1 2 5 Reset Pwr LED HD LED Pwr On SPK Front Panel I O Connector Header 68 2 1 SCSI 3 SCSI connector 67 PCI IDE Connector x2 Chassis Intrusion Header 11 20 1 10 Fan Connector 2A 1 3 Fan Connector 1 1 3 CPU Fan Connector 1 3 1 SLP 39 1 40 20 2 Module Connection 1 2 25 26...

Page 20: ...glen server Reset Reset switch connector When these pins are shorted it will cause the computer to perform a cold reboot PWR LED Power L E D This attaches to the power L E D on the front panel to display if the computer is active or not SPK PC speaker Connector Not used On board speaker is present HD LED Hard Disk L E D Connector This goes to the Hard Disk L E D on the front panel which lights up ...

Page 21: ...r by removing the screws at the rear of the case 3 Locate the SECC2 module s or Termination card If upgrading from one processor by referring to Figure 1 if necessary 4 Carefully pull back the tab of the retention mechanism marked B in Figure 5 with your left hand until the processor Terminator card can be rotated out of the slot With your right hand grasp the processor Terminator card on the side...

Page 22: ...22 Pentium III shown with Heatsink Marked A in Figure 5 fitted Figure 5 ...

Page 23: ... bit memory 32 MB 64 MB 128 MB 256 MB and 512 MB modules When adding memory follow these guidelines You must install DIMMs in bank 1 first and then bank 2 and so on You can use different size DIMMs in the any of the banks The BIOS detects the size and type of installed memory All the memory must be ECC NOTE DIMMS MUST MEET THE INTEL PC100 SPECIFICATIONS FOR 72 BIT SDRAM Location of the DIMM socket...

Page 24: ...e 6 1 1 Observe the precautions in Before You Begin Turn off all peripheral devices connected to the computer Turn off the computer 2 Remove the computer cover and locate the DIMM sockets 3 Holding the DIMM by the edges remove it from its antistatic package 4 Make sure the clips at either end of the socket are pushed down and out away from the DIMM socket 5 Position the DIMM above the socket Align...

Page 25: ...sockets 9 Replace the computer cover Removing Memory To remove a DIMM follow these steps 1 Observe the precautions in Before You Begin 2 Turn off all peripheral devices connected to the computer Turn off the computer 3 Remove the computer cover 4 Gently spread the retaining clips at each end of the socket The DIMM pops out of the socket 5 Hold the DIMM by the edges lift it away from the socket and...

Page 26: ...ren CAUTION Danger of explosion if the battery is incorrectly replaced Replace only with the same or equivalent type recommended by Viglen Discard used batteries according to manufacturer s instructions The battery is listed as board component L on the diagram on page 2 It is located near to the Primary and Secondary IDE connectors component H on the motherboard diagram To replace the battery carr...

Page 27: ...upport for further assistance Resetting the System Table 3 To do the following Press Soft boot Clear the system memory and reload the operating system also called warm reset Ctrl Alt Del Cold boot Clear the system memory halt power to all peripherals restart POST and reload the operating system Power off on or reset button at front of the system Fault Resilient Booting Fault resilient booting insu...

Page 28: ...em is plugged into a properly grounded power outlet 3 Make sure your video display and keyboard are correctly connected to the system Turn on the video display and turn up its brightness and contrast controls to at least two thirds of the maximum refer to the documentation supplied with the video display 4 If the operating system normally loads from the hard disk drive make sure there is no disket...

Page 29: ...change in Setup and reboot the system Record your change Make sure the software is properly configured for the system Refer to the software documentation for information Try a different copy of the software to see if the problem is with the copy you are using If other software runs correctly on the system contact the vendor of the software that fails If you check all of the above with no success t...

Page 30: ...s in use or is tested by POST Make sure the power and signal cables for the drive are properly installed Check that the drive is properly configured and enabled in Setup Hard drive light does not go on when drive is in use or is tested by POST Make sure the power and signal cables for the drive are properly installed Make sure the front panel connector is securely attached to the system board head...

Page 31: ...S RAM to the default values and reconfigure the system in Setup System halts before completing POST This indicates a fatal system error that requires immediate service attention Note the screen display and write down any beep code emitted Provide this information to your dealer service department Technical Support ...

Page 32: ... Fixed Disk 1 Failure or Fixed Disk Controller Failure Fixed disk is not working or not configured properly Check to see if fixed disk is installed properly Run Setup to be sure the fixed disk type is correctly identified Incorrect Drive A type run SETUP Type of floppy drive for drive A not correctly identified in Setup Incorrect Drive B type run SETUP Type of floppy drive for drive B not correctl...

Page 33: ...ailed at offset nnnn Shadow RAM failed at offset nnnn of the 64 KB block at which the error was detected System battery is dead Replace and run SETUP The CMOS clock battery indicator shows the battery is dead Replace the battery and run Setup to reconfigure the system System cache error Cache disabled RAM cache failed the BIOS test BIOS disabled the cache System CMOS checksum bad run SETUP System ...

Page 34: ... If the BIOS detects a terminal error condition it outputs an error beep code halts the POST and attempts to display a port 80h code on a POST card s LED display Table 6 Beeps Description 1 One short beep before boot 1 2 Search for option ROM s One long two short beeps on checksum failure 1 2 2 3 BIOS ROM checksum 1 3 1 1 Test DRAM refresh problem with memory on baseboard 1 3 1 3 Test 8742 keyboar...

Page 35: ...er is first switched on certain instructions in the BIOS are executed to test various parts of the machine This is known as the POST Power On Self Test routine When you switch the computer on or when you press the Reset button or press ctrl alt delete keys which has the same effect you can see on the monitor that it counts through the memory testing it The floppy disk drives are then accessed and ...

Page 36: ...splays a message during POST identifying the type of BIOS and the revision code BIOS Upgrades A new version of the BIOS can be upgraded from a diskette using the iFLASH EXE utility that is available from Intel This utility does BIOS upgrades as follows Updates the flash BIOS from a file on a disk Updates the language section of the BIOS Makes sure that the upgrade BIOS matches the target system to...

Page 37: ...tion information is stored in the extended system configuration data ESCD format PCI IDE Support If Auto is selected as a primary or secondary IDE device in Setup the BIOS automatically sets up the two local bus IDE connectors with independent I O channel support The IDE interface supports hard drives up to PIO Mode 4 and recognises any ATAPI devices including CD ROM drives and tape drives The BIO...

Page 38: ...ta such as memory size cache size and processor speed Dynamic data such as event detection and error logging Language Support The Setup program and help messages can be supported in 32 languages The default language is American English which is present unless another language is programmed into the BIOS using the flash memory update utility Boot Options In the Setup program the user can choose to ...

Page 39: ...roy the BIOS For example the data can be lost if a power outage occurs while the BIOS is being updated in flash memory The BIOS can be recovered from a diskette with recovery files using the BIOS recovery Jumper See Recovering the BIOS later in the chapter ...

Page 40: ...c equipment Disconnect the computer from its power source and from any telecommunications links networks or modems before performing any of the procedures described in this chapter Failure to disconnect power telecommunications links networks or modems before you open the computer or perform any procedures can result in personal injury or equipment damage Some circuitry on the motherboard may cont...

Page 41: ... a setting remove the jumper from the pins and slide it onto the new pins for the desired setting CAUTION To avoid bending or breaking pins use caution when removing or installing a jumper This procedure assumes that the motherboard is installed in the computer and the configuration header J2J1 has the jumper s set to the defaults 1 Observe the precautions in Before You Begin 2 Turn off all periph...

Page 42: ...e BIOS using the IFLASH EXE program see page 74 Write Protect boot block Changing this jumper will allow program s such as Virus Killers to write to the boot block It will also allow Viruses to be put on the boot block Use with caution FRB timer This operation need s no other actions The system is now set to boot from the second processor if the first one fails No need to replace jumper to its ori...

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