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- TROUBLESHOOTING
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Troubleshooting Your System
Dell™PowerEdge™850SystemsInstallationandTroubleshootingGuide
Safety First—For You and Your System
Start-Up Routine
Checking the Equipment
RespondingtoaSystemsManagementSoftwareAlertMessage
Inside the System
Opening the System
Closing the System
Troubleshooting a Wet System
Troubleshooting a Damaged System
Troubleshooting the System Battery
Troubleshooting the Power Supply
Troubleshooting System Cooling Problems
Troubleshooting System Memory
Troubleshooting an Optical Drive
Troubleshooting SCSI Hard Drives
Troubleshooting SATA Hard Drives
Troubleshooting a RAID Controller Card
Troubleshooting Expansion Cards
Troubleshooting the Microprocessor
Safety First—For You and Your System
To perform certain procedures in this document, you must remove the system cover and work inside the system. While working inside the system, do not
attempt to service the system except as explained in this guide and elsewhere in your system documentation.
Start-Up Routine
Look and listen during the system's start-up routine for the indications described in Table4-1.
Table 4-1. Start-UpRoutineIndications
Checking the Equipment
This section provides troubleshooting procedures for external devices attached to the system, such as the monitor, keyboard, or mouse. Before you perform
any of the procedures, see "Troubleshooting External Connections."
Troubleshooting IRQ Assignment Conflicts
Most PCI devices can share an IRQ with another device, but they cannot use an IRQ simultaneously. To avoid this type of conflict, see the documentation for
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system.
Before performing any procedure, see your Product Information Guide for complete information about safety precautions, working inside the
computer and protecting against electrostatic discharge.
Look/listen for:
Action
An error message displayed on the monitor.
See "System Messages" in "Indicators, Messages, and Codes."
A series of beeps emitted by the system.
See "System Beep Codes" in "Indicators, Messages, and Codes."
Alert messages from the systems management software.
See the systems management software documentation.
The monitor's power indicator.
See "Troubleshooting the Video Subsystem."
The keyboard indicators.
See "Troubleshooting the Keyboard."
The USB diskette drive activity indicator.
See "Troubleshooting a USB Device."
The USB CD drive activity indicator.
See "Troubleshooting a USB Device."
The optical drive activity indicator.
See "Troubleshooting an Optical Drive."
The hard-drive activity indicator.
See "Troubleshooting SCSI Hard Drives."
An unfamiliar constant scraping or grinding sound when you access a drive.
See "Getting Help."
- Abbreviations and Acronyms 1
- System Board Jumpers 2
- System Board Connectors 3
- SCSI Backplane Connectors 4
- I/O Connectors 6
- Parallel Connector 7
- Video Connector 8
- USB Connectors 9
- Integrated NIC Connectors 9
- Introduction 11
- System Status Indicators 12
- Power Indicator Codes 15
- NIC Indicator Codes 15
- System Messages 16
- System Beep Codes 18
- Warning Messages 19
- Diagnostics Messages 20
- Alert Messages 20
- Before You Begin 21
- Troubleshooting a NIC 28
- System Fans 45
- Removing the Back System Fan 46
- Removing Memory Modules 52
- Installing a Processor 54
- Installing a RAC Card 55
- Front-Panel Drive Inserts 59
- Diskette Drive 60
- 5.25-Inch Drives 61
- Hot-Plug SCSI Hard Drives 68
- Riser Card Connectors 84
- USB Connector 88
- Integrated NIC Connector 88
- Network Cable Requirements 89
- Front-Panel Features 92
- Back-Panel Features 93
- NIC Indicators 93
- Start-Up Routine 102
- Checking the Equipment 102
- Troubleshooting the Keyboard 103
- Troubleshooting the Mouse 104
- Troubleshooting a NIC 105
- Inside the System 106
- Opening the System 106
- Closing the System 107
- Problem 108
- Troubleshooting a Fan 110
- Cooling Shroud 117
- System Battery 118
- Fan Assembly 119
- PCI Fan Module 120
- Power Supply 120
- Expansion Cards 121
- Removing an Expansion Card 122
- Riser Card 123
- System Memory 123
- Installing Memory Modules 124
- Processor 125
- Installing Drives 128
- Configuring the Boot Drive 129
- Hard Drives 129
- Installing a Hard Drive 131
- Back to Contents Page 132
- Recommended Tools 133
- Control Panel Assembly 133
- Daughter Card 134
- System Board 135
- Getting Help 138
- Problems With Your Order 139
- Product Information 139
- Before You Call 140
- Contacting Dell 140
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