Intel BLKDX79TO manual Replacing the Battery, Précaution

Page 56

Intel Desktop Board DX79TO Product Guide

Replacing the Battery

A coin-cell battery (CR2032) powers the real-time clock and CMOS memory. When the computer is not plugged into a wall socket, the battery has an estimated life of three years. When the computer is plugged in, the standby current from the power supply extends the life of the battery. The clock is accurate to ± 13 minutes/year at 25 ºC with 3.3 VSB applied.

When the voltage drops below a certain level, the BIOS Setup program settings stored in CMOS RAM (for example, the date and time) might not be accurate. Replace the battery with an equivalent one. Figure 25 on page 61 shows the location of the battery.

CAUTION

Risk of explosion if the battery is replaced with an incorrect type. Batteries should be recycled where possible. Disposal of used batteries must be in accordance with local environmental regulations.

PRÉCAUTION

Risque d'explosion si la pile usagée est remplacée par une pile de type incorrect. Les piles usagées doivent être recyclées dans la mesure du possible. La mise au rebut des piles usagées doit respecter les réglementations locales en vigueur en matière de protection de l'environnement.

FORHOLDSREGEL

Eksplosionsfare, hvis batteriet erstattes med et batteri af en forkert type. Batterier bør om muligt genbruges. Bortskaffelse af brugte batterier bør foregå i overensstemmelse med gældende miljølovgivning.

OBS!

Det kan oppstå eksplosjonsfare hvis batteriet skiftes ut med feil type. Brukte batterier bør kastes i henhold til gjeldende miljølovgivning.

VIKTIGT!

Risk för explosion om batteriet ersätts med felaktig batterityp. Batterier ska kasseras enligt de lokala miljövårdsbestämmelserna.

56

Image 56
Contents Intel Desktop Board DX79TO Product Guide Revision History DisclaimerPreface Intended AudienceUse Only for Intended Applications Document OrganizationTerm Description TerminologyIntel Desktop Board DX79TO Product Guide Contents Error Messages and Indicators Contents Regulatory ComplianceTables Desktop Board Features Feature SummaryPower Management PeripheralInterfaces LAN SupportDesktop Board Features Supported Operating SystemsDesktop Board Components Intel Desktop Board DX79TO ComponentsLabel Description Processor Online SupportSystem Memory Memory Configurations Memory Channel and Dimm ConfigurationIntel X79 Express Chipset USB SupportSerial ATA USBAudio Subsystem LAN SubsystemLED Color LED State Indicates Legacy I/OExpandability Security Passwords Serial ATA and IDE Auto ConfigurationPCI and PCI Express* Auto Configuration Hardware Monitoring and Fan Speed Control Back to Bios ButtonHardware Management Power Management Chassis IntrusionSoftware Support Hardware SupportFan Headers +5 V Standby Power Indicator Onboard System Control Switches Wake from USBPower Switch Reset SwitchSystem Initialization/ Status LEDs Location of the Initialization/Status LEDsSystem Initialization LEDs System Initialization LEDsItem/Callout Activity Color DescriptionTrusted Platform Module TPM SpeakerStatus LEDs Status LEDsBattery Real-Time ClockInstalling and Replacing Desktop Board Components Before You BeginObserve Safety and Regulatory Requirements Installation PrecautionsPrevent Power Supply Overload Installing the I/O Shield Installing and Replacing Desktop Board ComponentsInstalling the Desktop Board Intel Desktop Board DX79TO Mounting Screw Hole LocationsInstalling a Processor Unlatch the Socket LeversOpen the Load Plate Install the Processor Close the Load Plate Installing a Processor Fan Heat Sink Installing and Removing Memory Installing DIMMsInstalling a Dimm Removing DIMMs Installing and Removing PCI Express x16 Add-in CardsInstalling PCI Express x16 Graphics Cards Installing a PCI Express x16 Card Removing a PCI Express x16 Add-in CardInstalling Linked PCI Express x16 Graphics Cards Removing a PCI Express x16 CardInstalling Linked PCI Express Graphics Cards Connecting Sata Cables Connecting the Serial ATA CablesConnecting to the Internal Headers and Connectors Internal HeadersIeee 1394a Header Front Panel Audio HeaderChassis Intrusion Header Front Panel CIR Receiver Input Header Signal Names Back Panel CIR Header Emitter Output Header Signal NamesPin Signal Name Ground Consumer IR CIR HeadersUSB 2.0 Header Signal Names Front Panel Header Signal NamesUSB 2.0 Headers Front Panel HeaderConnecting to the Audio System Alternate Front Panel Power LED HeaderAlternate Front Panel Power LED Header Signal Names Pin Description In/OutConnecting Chassis Fan and Power Supply Cables Connecting Chassis Fan CablesConnecting Power Supply Cables Connecting Power Supply CablesSetting the Bios Configuration Jumper Location of the Bios Configuration Jumper BlockMode Description Clearing PasswordsJumper Settings for the Bios Setup Program Modes Replacing the Battery PrécautionVaro Προσοχή Внимание Intel Desktop Board DX79TO Product Guide Removing the Battery Intel Desktop Board DX79TO Product Guide Updating the Bios Updating the Bios with the Intel Express Bios Update UtilityUpdating the Bios Using the F7 Function Key Updating the Bios with the Intel Flash Memory Update UtilityRecovering the Bios Updating the BiosIntel Desktop Board DX79TO Product Guide Configuring for RAID Using Intel Rapid Storage Technology Configuring the BiosGo to Configuration Sata Drives Creating Your RAID SetSetting Up a RAID Ready System Error Messages and Indicators Bios Error CodesBios Beep Codes Front-panel Power LED Blink CodesError Message Explanation Bios Error MessagesBios Error Messages Error Messages and Indicators Port 80h Post CodesPEI Phase Before MRC Port 80h Post CodesPost Code Description Acpi S States MEC Memory DetectionPEIMs/Recovery Boot Device Selection BDSRuntime Phase/EFI Operating System Boot CPU Initialization PEI, DXE, SMMIntel Desktop Board DX79TO Product Guide Safety Standards Battery CautionSafety Standards Regulatory ComplianceEuropean Union Declaration of Conformity Statement Regulatory Compliance Product Ecology StatementsRecycling Considerations Deutsch EspañolFrançais MalayTürkçe PortugueseRussian China RoHS EMC Regulations EMC RegulationsFCC Declaration of Conformity Canadian Department of Communications Compliance Statement Japan Vcci StatementKorea Class B Statement Ensure Electromagnetic Compatibility EMC ComplianceProduct Certifications Board-Level CertificationsRegulatory Compliance Marks Description MarkEnergy STAR*, e-Standby, and ErP Compliance Chassis- and Component-Level CertificationsEurope United StatesIntel Desktop Board DX79TO Product Guide