Dell 2950 owner manual 172, LVD Low voltage differential Meters MA Milliamperes

Page 172

KB — Kilobyte(s); 1024 bytes.

Kbps — Kilobit(s) per second.

KBps — Kilobyte(s) per second.

key combination — A command requiring you to press multiple keys at the same time (for example, <Ctrl><Alt><Del>).

kg — Kilogram(s); 1000 grams.

kHz — Kilohertz.

KMM — Keyboard/monitor/mouse.

KVM — Keyboard/video/mouse. KVM refers to a switch that allows selection of the system from which the video is displayed and for which the keyboard and mouse are used.

LAN — Local area network. A LAN is usually confined to the same building or a few nearby buildings, with all equipment linked by wiring dedicated specifically to the LAN.

lb — Pound(s).

LCD — Liquid crystal display.

LED Light-emitting diode. An electronic device that lights up when a current is passed through it.

LGA—Land grid array. A type of processor socket. Unlike the PGA, the LGA interface has no pins on the chip; instead, the chip has pads that contact pins on the system board.

Linux — A UNIX-like operating system that runs on a variety of hardware systems. Linux is open source software, which is freely available; however, the full distribution of Linux along with technical support and training are available for a fee from vendors such as Red Hat Software.

local bus — On a system with local-bus expansion capability, certain peripheral devices (such as the video adapter circuitry) can be designed to run much faster than they would with a traditional expansion bus. See also bus.

LVD — Low voltage differential.

m— Meter(s).

mA — Milliampere(s).

MAC address — Media Access Control address. Your system’s unique hardware number on a network.

mAh Milliampere-hour(s).

Mb — Megabit(s); 1,048,576 bits.

MB — Megabyte(s); 1,048,576 bytes. However, when referring to hard-drive capacity, the term is often rounded to mean 1,000,000 bytes.

Mbps — Megabits per second.

MBps — Megabytes per second.

MBR — Master boot record.

memory address — A specific location, usually expressed as a hexadecimal number, in the system’s RAM.

memory module — A small circuit board containing DRAM chips that connects to the system board.

memory — An area in your system that stores basic system data. A system can contain several different forms of memory, such as integrated memory (ROM and RAM) and add-in memory modules (DIMMs).

MHz — Megahertz.

mirroring — A type of data redundancy in which a set of physical drives stores data and one or more sets of additional drives stores duplicate copies of the data. Mirroring functionality is provided by software. See also guarding, integrated mirroring, striping, and RAID.

mm— Millimeter(s).

ms — Millisecond(s).

MS-DOS®— Microsoft Disk Operating System.

NAS — Network Attached Storage. NAS is one of the concepts used for implementing shared storage on a network. NAS systems have their own operating systems, integrated hardware, and software that are optimized to serve specific storage needs.

NIC — Network interface controller. A device that is installed or integrated in a system to allow connection to a network.

NMI — Nonmaskable interrupt. A device sends an NMI to signal the processor about hardware errors.

ns — Nanosecond(s).

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Glossary

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Contents Dell PowerEdge 2950 Systems W . d e l l . c o m s u p p o r t . d e l l . c o mJanuary Contents Baseboard Management Controller Configuration Expansion Card Installation Guidelines Installing a SAS Controller Daughter CardRemoving a SAS Controller Daughter Card General Memory Module Installation Guidelines Removing the Left Expansion-Card Riser Board100 101Troubleshooting System Cooling Problems 119 Troubleshooting an External Scsi Tape Drive 123111 112Using Server Administrator Diagnostics 131 Returning Items for Warranty Repair or Credit 149 Contents132 133150 152Contents Other Information You May Need About Your SystemAccessing System Features During Startup Front-Panel Features and Indicators LCD lights amber when the system needs Whether the system has been powered onUSB connectors MessagesHard-Drive Indicator Codes Amber About Your SystemAbout Your System Back-Panel Features and Indicators Connecting External DevicesPower Indicator Codes Redundant Power Supply IndicatorsIndicator Function Green indicates that the power supply is operationalNIC Indicator Codes LCD Status MessagesE1000 FAILSAFE, Call Support E1114 Temp AmbientE1116 Temp Memory E12nn Xx PwrGdE1410 E1414 CPU # ThermtripE1418 CPU # Presence E141C CPU MismatchE1422 CPU Machine Chk E1610 PS # MissingE1614 PS # Status E1618 PS # PredictiveE1810 HDD ## Fault E1711PCI Perr Slot # E1712E1A11 PCI Rsr Config E2011 Mem Config ErrE2013 Shadow Bios Fail E1811 HDD ## Rbld AbrtE2017 Timer Fail E2018 Prog TimerE2019 Parity Error E201F Drac ConfigE2111 SBE Log Disable Crd # Dimm ##E2112 Mem Spare Crd # E2113 Mem Mirror Crd #Removing LCD Status Messages Solving Problems Described by LCD Status MessagesI1912 SEL Full System Messages Diskette subsystem reset Diskette drive n seekFailure Diskette read failureError Incorrect memory Configuration. DIMMs mustBe installed in pairs Error Remote AccessNo boot device available No boot sector on hard driveNo timer tick interrupt Northbound merge errorError Embedded Error Slot nActual Link Width is n PCIe Training Error Slot n PCI Bios failed to installSeek error Please run Setup programROM bad checksum = address Sector not foundTimer chip counter Update loaded forWrite fault Write Fault on selectedDiagnostics Messages Alert MessagesAbout Your System Responding to Error Messages Entering the System Setup ProgramUsing the System Setup Program Using the System Setup Program System Setup OptionsMain Screen CPU Information Including size, type, and speedLogical Processor option. See Table System Setup Program Options Description Boot Sequence Using the Setup Password onVirtual CD-ROM may be present From external devicesCPU Information Screen Integrated Devices Screen Serial Communication Screen System Security ScreenExit Screen System and Setup Password Features Using the System PasswordUsing the System Setup Program Using the Setup Password Deleting or Changing an Existing System PasswordBaseboard Management Controller Configuration Disabling a Forgotten PasswordSee Disabling a Forgotten Password on Entering the BMC Setup Module BMC Setup Module OptionsUsing the System Setup Program Installing System Components Recommended ToolsInside the System SideplaneHot-pluggable fans Control panelFront Bezel Hard Drive and Media Bay ConfigurationsRemoving the Front Bezel Replacing the Front Bezel Opening and Closing the SystemOpening the System Hard Drives Closing the SystemBefore You Begin Removing a Drive BlankInstalling a Hot-Plug Hard Drive Installing a Drive BlankRemoving a Hot-Plug Hard Drive Replacing a Hard-Drive Carrier Removing a Hard Drive From a Hard-Drive CarrierInstalling a SAS Hard Drive Into a SATAu Drive Carrier Screws SATAu drive carrierInstalling a Sata Hard Drive Into a Sata Drive Carrier Installing System Components Power Supplies Sata hard-drive Hole labelsRemoving a Power Supply Pull the power supply straight out to clear the chassisReplacing a Power Supply Removing the Power Supply BlankInstalling the Power Supply Blank System FansRemoving a System Fan System includes four hot-pluggable cooling fansCooling Shroud Replacing a Cooling FanRemoving the Cooling Shroud Installing the Cooling ShroudShroud hinges Fan bracket Fan Brackets Removing the Fan BracketSAS Controller Daughter Card Fan bracket slot in power Tabs Supply cageReplacing the Fan Bracket Installing a SAS Controller Daughter Card 12. Installing a SAS Controller Daughter Card Backplane Card SAS backplane a Inch x6 backplaneInch x4 backplane CardSAS backplane B Installing a RAID Battery RAID BatteryRemoving a SAS Controller Daughter Card Removing a RAID Battery SAS RAID controller daughter card batteryConfiguring the Boot Device Expansion Card Installation GuidelinesInstalling an Expansion Card Expansion CardsExpansion card Removing an Expansion Card Expansion-Card CageRemoving the Expansion-Card Cage Replacing the Expansion-Card Cage Lift the cage straight up to clear the chassis. See FigureInstalling a RAC Card Optical Drive Removing the Optical DriveInstalling the Optical Drive Optical driveDiskette Drive Removing the Diskette Drive From the SystemInstalling the Diskette Drive Into the System Removing the Diskette Drive From the Drive Carrier Installing the Diskette Drive Into the Drive CarrierDiskette drive release tabs Removing and Installing an Internal Scsi Tape Drive Scsi Tape DriveTape drive Release latch General Memory Module Installation Guidelines System MemoryNon-Optimal Memory Configurations Installing Memory ModulesMemory Sparing Support Memory Mirroring SupportInstalling System Components Removing Memory Modules Processors Activating the Integrated NIC TOERemoving a Processor 28. Installing and Removing the Heat Sink Heat sink Installing a Processor Processor shield ZIF socket Socket keyReplacing the System Battery System BatterySystem battery is a 3.0-volt V, coin-cell battery Negative side of battery Expansion-Card Riser Boards Removing the Left Expansion-Card Riser BoardInstalling the Left Riser Board Riser securing tabs Riser securing slotsInstalling the Central Riser Board Guide pins System board socketRemoving the Central Riser Board 100Removing the Sideplane Board Sideplane Board101 Installing the Sideplane Board Backplane connector PinsRemoving the SAS Backplane Board SAS Backplane Board103 Installing the SAS Backplane Board Pin Securing slots Securing tabsRemoving the Control Panel Assembly Control Panel Assembly Service-only Procedure105 Installing the Control Panel Assembly Removing the System Board System Board Service-only Procedure107 Installing the System Board Release pin System-board securing tabs109 110 Start-Up Routine Safety First-For You and Your System111 Troubleshooting External Connections Troubleshooting IRQ Assignment ConflictsChecking the Equipment Troubleshooting the Video Subsystem Troubleshooting the KeyboardMonitor is not working properly Video memory is faulty ProblemTroubleshooting Basic I/O Functions Troubleshooting the MouseTroubleshooting a USB Device Troubleshooting a Serial I/O Device115 Troubleshooting a NIC Troubleshooting a Wet SystemNIC cannot communicate with network Liquid spilled on the system Excessive humiditySystem was dropped or damaged Troubleshooting a Damaged System117 Troubleshooting the System Battery Troubleshooting Power SuppliesTroubleshooting a Fan Troubleshooting System Cooling Problems119 Troubleshooting System Memory Error message indicates a diskette drive problem Troubleshooting a Diskette Drive121 Action Troubleshooting an External Scsi Tape Drive Troubleshooting an Optical Drive123 Troubleshooting a Hard Drive 125 Troubleshooting a SAS or SAS RAID Controller Daughter Card Troubleshooting Expansion Cards 127Troubleshooting the Microprocessors 129 130 Using Server Administrator Diagnostics System Diagnostics FeaturesWhen to Use the System Diagnostics 131Running the System Diagnostics System Diagnostics Testing OptionsUsing the Custom Test Options Selecting Devices for TestingViewing Information and Results Selecting Diagnostics Options133 134 System Board Jumpers Jumpers and Connectors135 Default The password feature is enabled Password feature is disabledSystem Board Connectors 137138 SAS Backplane Board Connectors 139Secondary SAS Sasb Drive 5 SASDRV5 Drive 3 SASDRV3140 Drive 2 SASDRV2 Drive 3 SASDRV3 Drive 1 SASDRV1141 Secondary SAS Sasb Primary SAS SasaSideplane Board Connectors Expansion-Card Riser-Board Components and PCI BusesControl panel Ctrl Pin guides143 Optional PCI-X Left Expansion-Card Riser Board ComponentsOptional PCIe Expansion-Card Central Riser Board Components 145 146 Online Services Technical Assistance147 Getting HelpAutoTech Service Automated Order-Status ServiceTechnical Support Service Electronic Quote Service149 Before You Call 150151 Contacting Dell 152153 154 155 156 General Support 01-899-753-0777157 158 159 General Support dial from within Jamaica only Getting Help160 161 General Support 001-800-882-1519 162General Support 001-800-220-1006 163 164 165 166 167 168 169 Amperes AC Alternating currentBTU British thermal unit Celsius170 Cm Centimeters Cmos Complementary metal-oxide semiconductorFahrenheit 171Kilo Kb Kilobits 1024 bits Glossary 172 LVD Low voltage differential Meters MA Milliamperes173 174 System diskette See bootable disketteTCP/IP Transmission Control Protocol/Internet Protocol 175 Volts VAC Volts alternating current VDC Volts direct current176 177 Connectors expansion-card riserIndex Hard drive installing Sata in a SATAu SAS hard drive in a SATAu drive carrierBoard 179PCI buses expansion-card riser SAS backplane board, 103 SAS controller daughterTOE 181 182
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