Dell 4100, 200, 180 service manual Observing the Boot Routine

Page 33

Observing the Boot Routine

After you have performed an external visual inspection as described in the pre- vious section, you should boot the system and, while the boot routine is running, observe the system for any indications of problems.

NOTE: Most of the steps in this procedure require observation of system func- tions and indications, some of which can occur simultaneously. It may be necessary to reboot the system several times in order to complete all of these steps.

To observe problem indications during the boot routine, follow these steps:

1.If the system is off, turn on all peripherals and the computer. Insert the Dell Server Assistant CD into the CD-ROM drive. Press the reset but- ton or <Ctrl><Alt><Del> to reboot the system.

2.Check the power supply fans. Do the fans run normally?

NOTE: The center fan is normally off, unless another fan has failed or is unplugged, or the temperature of the computer is too high.

Yes. Proceed to step 3.

No. Troubleshoot the system power supply.

3.Watch the Num Lock, Caps Lock, and Scroll Lock indicators on the upper-right corner of the keyboard. After all three indicators flash momentarily, and following a long pause (approximately 30 seconds), the Num Lock indicator should light up and remain on.

Do these indicators flash on and off within approximately 10 seconds after the boot routine starts?

Yes. Proceed to step 4.

No. Troubleshoot the system power supply. If the troubleshooting procedure indicates that the system power supply is operational, troubleshoot the memory.

4.During the boot routine, observe the computer for any of the following:

Beep codes: A beep code is a series of beeps that indicates an error con- dition. If the system emits a beep code, see Table 3-1.

NOTE: The system beeps once during the boot routine. This single beep is normal and is not a beep code.

System error messages: These messages can indicate problems or pro- vide status information. If a system error message is displayed, see Table 3-2.

Diskette-drive and hard-disk drive activity indicators: These indicators light up in response to data being transferred to or from the drives. If either of these indicators fails to light up during the boot routine, trouble- shoot the diskette drive or hard-disk drive subsystem, as appropriate.

Basic Troubleshooting

2-3

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Contents Dell PowerEdge 4100/180 and 4100/200 Systems Page System Overview System FeaturesPage Computer Orientation Front-Panel Features Front/Left Internal View Back/Right Internal View I/O Panel System Memory Advanced Expansion SubsystemIntegrated Server Management Video Controller Scsi Configuration GuidelinesIntegrated Scsi Controllers Scsi Hard-Disk DrivesScsi ID Numbers System Power Supply System UnitDC Voltage Ranges Power Supply Connectors DC Power Connector J11 P1 DC Power Connectors J12 P2, J13 P3, and J14 P4 Ddbp 12. Power-Supply Paralleling Board Connectors 13. DC Power Connector PWR1 15. DC Power Connector Pwrscsi Ddbp DC Power Distribution Redundant System 18. System Board Components System Board LayoutMain Memory Interrupt Assignments Jumper DescriptionsInterrupt Assignments Dreq Line Assignments DMA Channel AssignmentsTechnical Specifications Technical SpecificationsSystem Clocks CD-ROM Power Technical Specifications Initial User Contact Basic TroubleshootingExternal Visual Inspection Observing the Boot Routine Internal Visual Inspection Eliminating Resource Conflicts Running the System DiagnosticsGetting Help Beep Codes Post Beep CodesBeep Codes System Error Messages System Error MessagesReal-time clock on Defective micro Wrong microprocessor Replace microprocessor Page Recommended Tools Removing and Replacing PartsComputer Covers Precautionary MeasuresKeylocks on Computer’s Back Panel Front Bezel Removal Front BezelDrive Hardware DrivesFront-Panel Insert Removal Front-Panel InsertsExternally Accessible Drives Removal Externally Accessible DrivesDrive-Mounting Rails Removal Hard-Disk Drive Carrier Removal Hard-Disk DrivesHard-Disk Drive Removal 10. Scsi Backplane Board Removal Scsi Backplane Board11. Power Supply Removal Power Supply12. Power-Supply Paralleling Board Removal Redundant Systems Power-Supply Paralleling Board13. Power Connector Panel Removal Nonredundant Systems Power Connector Panel14. Control Panel Removal Control Panel15. Cooling Fan Removal Cooling Fans16. System Board Components System Board Components17. Expansion Card Removal Expansion Cards18. Dimm Removal DIMMsMicroprocessor and Heat Sink 20. Microprocessor Configuration21. Microprocessor Securing Clip 23. Pin-1 Identification 24. System Battery Removal System Battery25. System Board Removal System BoardScreen Conventions System Setup ScreensTable A-1. Key Functions Key FunctionsMain Menu Screen Color CombinationsTable A-2. Main Menu Categories Post Boot Options SubmenuFigure A-3. Advanced Menu Advanced MenuTable A-4. Advanced Menu Categories Figure A-4. Security Menu Security MenuUser’s Guide Table A-5. Security Menu CategoriesFigure A-5. Exit Menu Exit MenuTable A-6. Exit Menu Categories Page Index Dreq line assignments Scsi Key functions, A-2main menu, A-3menus, A-1
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