Dell T420 Owner's Manual Page 125
- Page / 167
- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
- Dell PowerEdge T420 Systems 1
- Owner's Manual 1
- Notes, Cautions, and Warnings 2
- Contents 3
- About Your System 9
- LCD Panel Features 15
- Home Screen 16
- Setup Menu 16
- Diagnostic Indicators 17
- Hard-Drive Indicator Patterns 19
- NIC Indicator Codes 22
- Getting Started Guide 24
- Choosing The System Boot Mode 25
- Entering System Setup 26
- System Setup Options 27
- Memory Settings Screen 28
- Processor Settings Screen 28
- SATA Settings Screen 30
- Boot Settings Screen 30
- Integrated Devices Screen 31
- Serial Communications Screen 31
- System Security Screen 33
- Miscellaneous Settings 34
- Boot Manager Screen 37
- Embedded System Management 38
- 4. Click Back → Finish → Yes 39
- Installing System Components 41
- System Feet—Tower Mode 42
- Removing The System Feet 43
- Installing The System Feet 43
- Removing The Wheel Assembly 44
- Installing The Wheel Assembly 45
- Opening The System 45
- Inside The System 46
- 1. optical drive 50
- 2. tape drive 50
- 3. release latch 50
- Cooling Shroud 52
- Installing The Cooling Shroud 53
- Hard Drives—Hot-Swappable 54
- Hard Drives—Cabled 59
- Removing A Cabled Hard Drive 61
- Hard-Drive Backplane 63
- 1. x8 hard-drive backplane 64
- 2. release pin 64
- 3. hooks (11) 64
- 1. x16 hard-drive backplane 67
- 3. hooks (7) 67
- Four-Slot Hard-Drive Blank 70
- System Memory 71
- Mode-Specific Guidelines 74
- Sample Memory Configurations 75
- Removing Memory Modules 76
- Installing Memory Modules 78
- Cooling Fans 79
- PCIe Card Holder (Optional) 85
- Expansion Cards 86
- Removing An Expansion Card 87
- Installing An Expansion Card 88
- Removing A GPU Card 89
- Installing A GPU Card 90
- Removing The iDRAC Ports Card 91
- Internal Dual SD Module 93
- Internal SD Card 95
- Processors 96
- Installing A Processor 98
- Redundant AC Power Supply 99
- Non-Redundant AC Power Supply 103
- System Battery 107
- Control-Panel Assembly 108
- Removing The Control Panel 112
- Installing The Control Panel 114
- Removing The LCD Module 117
- Installing The LCD Module 118
- System Board 120
- Installing The System Board 121
- Rack Mode 123
- Rack Installation 125
- Troubleshooting Your System 127
- Troubleshooting A NIC 128
- Troubleshooting A Wet System 129
- Troubleshooting Cooling Fans 131
- Troubleshooting System Memory 131
- Troubleshooting An SD Card 133
- Troubleshooting A Hard Drive 134
- Troubleshooting Processor 135
- Using System Diagnostics 137
- System Diagnostic Controls 138
- Jumpers And Connectors 139
- Technical Specifications 143
- System Messages 149
- Warning Messages 165
- Diagnostic Messages 165
- Alert Messages 165
- Getting Help 167
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