Dell PowerEdge R905 Owner's Manual Page 149
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- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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Troubleshooting Your System 149
5
If you have remote access to your system, use a remote host to access the
system’s System Setup program and enable the USB ports. If remote
access is not available, proceed to the next step.
If enabling the USB ports does not resolve the problem, see "Getting Help"
on page 181.
6
If you do not have remote access to your system, use the following
procedure to set the NVRAM_CLR jumper inside your system and restore
the BIOS to its default settings.
CAUTION: Many repairs may only be done by a certified service technician. You
should only perform troubleshooting and simple repairs as authorized in your
product documentation, or as directed by the online or telephone service and
support team. Damage due to servicing that is not authorized by Dell is not covered
by your warranty. Read and follow the safety instructions that came with the
product.
a
Turn off the system and attached peripherals and unplug the system
from the power source.
b
Open the system. See "Opening the System" on page 67.
c
Locate the NVRAM_CLR jumper on your system board (see "System
Board Jumpers" on page 173) and set the jumper to the enabled
position.
d
Close the system. See "Closing the System" on page 68.
e
Reconnect the system and peripherals to power and restart.
If the mouse and keyboard are operational, proceed to the next step.
If the mouse and keyboard are still not operational, see "Getting Help"
on page 181.
f
Repeat step 2 and step b.
g
Set the NVRAM_CLR jumper to the disabled position.
h
Close the system.
i
Reconnect the system to power and restart the system and attached
peripherals.
j
Enter the System Setup program and reenter any custom BIOS
settings that were reset. Be sure to leave all USB ports enabled.
- Hardware Owner’s 1
- Notes, Notices, and Cautions 2
- Contents 3
- 4 Contents 4
- 6 Contents 6
- 8 Contents 8
- 10 Contents 10
- About Your System 11
- 14 About Your System 14
- Hard-Drive Indicator Codes 16
- Connecting External Devices 18
- Power Indicator Codes 19
- NIC Indicator Codes 20
- LCD Status Messages 21
- 22 About Your System 22
- 24 About Your System 24
- NOTE: The LCD continues 24
- 26 About Your System 26
- 28 About Your System 28
- 30 About Your System 30
- Removing LCD Status Messages 32
- System Messages 33
- 34 About Your System 34
- 36 About Your System 36
- 38 About Your System 38
- 40 About Your System 40
- 42 About Your System 42
- Warning Messages 43
- Diagnostics Messages 43
- Alert Messages 43
- 44 About Your System 44
- Responding to Error Messages 45
- System Setup Options 46
- Memory Information Screen 49
- CPU Information Screen 50
- Integrated Devices Screen 51
- Serial Communication Screen 53
- System Security Screen 53
- Exit Screen 56
- Using the System Password 57
- Using the Setup Password 59
- Entering the BMC Setup Module 61
- BMC Setup Module Options 61
- Recommended Tools 64
- Inside the System 64
- 1 bezel 2 key lock 66
- Opening the System 67
- Closing the System 68
- Cooling Fans 69
- Replacing a Cooling Fan 70
- Cooling Shroud Assembly 71
- Power Supplies 73
- Replacing a Power Supply 74
- Processor Expansion Module 75
- Expansion Cards 79
- Installing an Expansion Card 80
- Riser Board 83
- Removing the Riser Board 84
- Replacing the Riser Board 85
- RAC Card 86
- TOE/iSCSI Key (Optional) 89
- SD Memory Card 91
- NIC Daughter Card 91
- System Memory 94
- Installing Memory Modules 97
- Removing Memory Modules 99
- Processors 100
- Removing a Processor 101
- Installing System Components 102
- Installing a Processor 103
- Installing an Optical Drive 105
- Hard Drives 107
- Before You Begin 108
- Configuring the Boot Device 109
- Removing a Drive Blank 109
- Installing a Drive Blank 109
- SAS Controller Cards 113
- System Battery 117
- Control Panel Assembly 119
- Installing the Control Panel 121
- Chassis Intrusion Switch 122
- SAS Backplane 124
- Installing a SAS Backplane 127
- Peripheral Interposer Board 128
- Fan Interposer Board 131
- System Board 134
- Installing the System Board 137
- Power Distribution Board 138
- Removing the PEM Board 141
- Replacing the PEM Board 142
- Troubleshooting Your System 145
- Checking Basic Power Problems 146
- Checking the Equipment 146
- Troubleshooting a USB Device 151
- Troubleshooting a NIC 153
- Troubleshooting a Wet System 154
- Troubleshooting a Fan 157
- Troubleshooting System Memory 158
- Troubleshooting a Hard Drive 161
- Controller 163
- System Diagnostics Features 169
- Using the Custom Test Options 171
- Jumpers and Connectors 173
- System Board Connectors 174
- 176 Jumpers and Connectors 176
- 178 Jumpers and Connectors 178
- 180 Jumpers and Connectors 180
- Getting Help 181
- 182 Getting Help 182
- Glossary 183
- 184 Glossary 184
- 186 Glossary 186
- 188 Glossary 188
- 190 Glossary 190
- 192 Glossary 192
- 194 Glossary 194
- FOR PROOF ONLY 195
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