Fujitsu D1561, D1562 technical manual Microcode Update, What is a microcode update?

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Microcode Update

ÊSet the switch for "Restore system BIOS" to OFF.

ÊClose the casing as described in the operating manual.

ÊRemove the floppy disk from the drive.

ÊStart the PC and invoke BIOS Setup.

ÊSelect the menu item Reset Configuration in the menu Advanced and change the setting to Yes.

ÊSave the change and terminate BIOS Setup.

The BIOS recovery has now been completed. The system restarts.

i

Detailed information on the BIOS recovery is contained in the manual "BIOS Setup"

("Drivers & Utilities" CD).

Microcode Update

What is a microcode update?

As there are no drivers for processors, Intel offers the possibility from the P6 family (Pentium Pro) on to update the command set (microcode) of the processor. This enables minor errors to be corrected and the performance to be increased.

To guarantee the best possible performance and error-free operation, Intel recommends updating the microcode for every new processor. Intel refers to the use of the processor without microcode updates as operation outside the specifications.

Safety for processor on Fujitsu Siemens Computers mainboards

If the processor uses an old or incorrect microcode, error-free operation cannot be ensured. Fujitsu Siemens Computers has therefore implemented a function on its mainboards that interrupts the booting process if no suitable microcode is available for the installed processor. The output error message is

Patch for installed CPU not loaded. Please run the bios flash update diskette.

This message appears until the microcode update has been carried out. If the computer is nevertheless operated without a microcode update, error-free operation is not ensured.

When should a microcode update be carried out?

A microcode update should be carried out after the installation of a new processor.

In contrast to the BIOS update, only an updated version of the processor command set is stored. The system BIOS remains unaffected by this.

26 - English

A26361-D1562-Z120-2-6319

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Contents Mainboard D1562/D1561 Sie haben Page A26361-D1562-Z120-1-6319 Mainboard D1562/D1561 Français Technisches Handbuch Technical ManualAusgabe Mai 2003 May 2003 edition Page Page Übersicht/Overview Mainboard D1562/61 = USB G/HContents Page Mainboard D1562/D1561 Notational conventionsAdditional information Important notes Information about boardsList of features Onboard featuresInternal ports Special features Harddisk Password and Harddisk Silent ModeExternal ports Thermal Management and System MonitoringLogo Boot DeskView / DeskViewOEM Recovery BiosBrief instructions on installing mainboard Prior to installationInstallation Driver installation Brief instructions on installing mainboardInterfaces and connectors LAN connectorExternal ports Internal ports and connectors Graphics port Supported screen resolutionsHard disk connection Audio front panelPower On LED Pin assignment of internal portsFront panel Serial ATA internalATA interface IRQ high assertedAudio S/PDIF CD audio inputAUX audio Stromversorgungsüberwachung / Power supply control Audio front panelUSB E/F dual channel Dual channelSerial port FanPower supply ATX Additional power supply ATX12Settings with switches and jumpers Recovering System Bios switch 2 / pin pairReserved switch 3 and switch 4 if present Removing and installing processors Technical dataAdd-on modules / Upgrading Replacing processorMounting heat sink Upgrading main memory Memory clock pulse speedSystem bus MHz DDR400 MHz DDR333 MHz DDR266 MHz Installing a memory module Removing a memory moduleUpgrading AGP screen controllers Adding PCI cardsPCI bus interrupts Selecting correct PCI slot Monofunctional expansions cards Interrupt Line Onboard controller USB 1,1 USB 2,0 SMBus AC97 Audio ModemReplacing the lithium battery Bios update Bios Recovery Recovering System BiosWhen should a Bios update be carried out? Bios update under Windows with DeskFlash utilityMicrocode Update What is a microcode update?When should a microcode update be carried out? Drivers DriversAnnex Electrical PropertiesLoadability for connections and fuses Mainboard current requirementAPM and Acpi system status, energy-saving modes LEDMainboard Revision and Bios Version Bios versionMainboard Revision Error messages FlashbioË/p6 ÚError messages Missing or invalid Nvram token System battery is dead Replace and run Setup Glossary