Dell 4691901 owner manual Beep Codes, Code Cause Microprocessor register failure

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Power Button

Problem Description Troubleshooting Steps

LED

Power Button

A possible system board resource and/or hardware failure has occurred.

•Clear CMOS.

•Disconnect all internal and external peripherals, and restart the computer. If the computer boots, add the peripheral cards back one by one until you find the bad one.

•If the problem persists, the system board / system board component is faulty.

Problem Description Troubleshooting Steps

Some other failure has occurred.

•Ensure that the display/monitor is plugged into a discrete graphic card.

•Ensure that all hard drives and optical drive cables are properly connected to the system board.

•If there is an error message on the screen identifying a problem with a device ( hard drive), check the device to make sure it is functioning properly.

•If the operating system is attempting to boot from a device (optical drive), check system setup to ensure the boot sequence is correct for the devices installed on your computer.

Beep Codes

The computer can emit a series of beeps during start-up if the display cannot show errors or problems. These series of beeps, called beep codes, identify various problems. The delay between each beep is 300 ms, the delay between each set of beeps is 3 sec, and the beep sound lasts 300 ms. After each beep and each set of beeps, the BIOS should detect if the user presses the power button. If so, BIOS will jump out from looping and execute the normal shutdown process and power system.

Code

1-1-2

Cause

Microprocessor register failure

Code

1-1-3

Cause

NVRAM

Code

1-1-4

Cause

ROM BIOS checksum failure

Code

1-2-1

Cause

Programmable interval timer

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Contents Regulatory Model D07D Regulatory Type D07D001 Dell Inc Contents System Setup TroubleshootingSpecifications Contacting DellPage Working on Your Computer Before Working Inside Your ComputerTurning Off Your Computer After Working Inside Your ComputerRemoving the Cover Installing The CoverRelated Links Removing the Front Bezel Installing The Front BezelRemoving the Expansion Card Page Installing The Expansion Card Removing the Optical DriveInstalling The Optical Drive Removing the Hard DrivePage Installing The Hard Drive Removing the MemoryInstalling The Memory Removing the Chassis Intrusion SwitchInstalling The Chassis Intrusion Switch Removing The SpeakerInstalling The Speaker Removing The Heat Sink and Processor Installing The Heat Sink and Processor Installing The Coin-Cell Battery Removing The Coin-Cell BatteryRemoving The Power-Switch Cable Installing The Power-Switch Cable Removing The Front Thermal Sensor Installing The Front Thermal Sensor Removing The System FanInstalling The System Fan Installing The System Fan Removing The Input/Output PanelDisconnect the 4-pin power cable from the system board Installing The Input/Output PanelRemoving The Power Supply Remove the Input/Output panelPage Installing The Power Supply Removing the System Board Remove the expansion cardsRemoving The PSU Thermal Sensor Installing the System BoardRemove the system board from the chassis Installing The PSU Thermal Sensor Boot Menu Enhancements System SetupBoot Menu CtrlAltF8 One-time boot and diagnostics utility menu F12Navigation Beep Codes and Text Error MessagesTiming Key Sequences Action KeystrokeSystem Setup Options Security They are set. This option is disabled by default Password BypassPassword prompts during a system restart Password ChangesPower Management PerformancePost Behavior Enable F12 Boot menu enabled by defaultMaintenance Virtualization SupportSystem Logs Diagnostic Light Patterns Diagnostic LEDsPower Button Troubleshooting Steps If the problem persists, the system board is faulty Re-seat the 2x2 power connector from the power supply unitPower Button Problem Description Possible system board failure has occurredReinstalled all modules without error Problem Description Troubleshooting Steps Beep Codes Code Cause Microprocessor register failureCode Through Cause Code Cause DMA initialization failureCode Cause Code Cause No time tick Shutdown failure Gate A20 failure Error MessagesAddress mark not found Code Cause Time-of-day clock stoppedBad error-correction code ECC on disk read Alert! Security override Jumper is installedBad command or file name Data errorDiskette drive 0 seek failure Diskette subsystem reset failedHard-disk drive configuration error Diskette read failureMemory allocation error Invalid configuration information-please run Setup programInvalid Memory configuration, please populate DIMM1 Keyboard failureNo timer tick interrupt No boot device availableNo boot sector on hard-disk drive Non-system disk or disk errorSeek error Read faultReset failed Time-of-day not set-please run the System Setup programWrite fault on selected drive Unexpected interrupt in protected modeWrite fault \ is not accessible. The device is not readyProcessor SpecificationSystem Information MemoryExpansion Bus AudioNetwork CardsMini-Tower Two Desktop One Small Form Factor External ConnectorsSystem Board Connectors Audio Back Panel Mini-Tower/DesktopControls and Lights Physical Height Width Depth Weight EnvironmentalPage Contacting Dell Visit support.dell.com
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