Dell R420xr owner manual Getting Help

Models: R420xr

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Troubleshooting External Connections

89

Troubleshooting The Video Subsystem

89

Troubleshooting A USB Device

89

Troubleshooting A Serial I/O Device

90

Troubleshooting A NIC

90

Troubleshooting A Wet System

91

Troubleshooting A Damaged System

91

Troubleshooting The System Battery

92

Troubleshooting Power Supplies

92

Troubleshooting Cooling Problems

93

Troubleshooting Cooling Fans

93

Troubleshooting System Memory

93

Troubleshooting An Internal USB Key

94

Troubleshooting An SD Card

95

Troubleshooting A Hard Drive

95

Troubleshooting A Storage Controller

96

Troubleshooting Expansion Cards

97

Troubleshooting Processors

98

5 Using System Diagnostics

99

Dell Embedded System Diagnostics

99

When To Use The Embedded System Diagnostics

99

Running The Embedded System Diagnostics

99

System Diagnostic Controls

99

6 Jumpers And Connectors

101

System Board Jumper Settings

101

System Board Connectors

102

Disabling A Forgotten Password

103

7 Technical Specifications

105

8 System Messages

110

LCD Messages

110

Viewing LCD Messages

110

Removing LCD Messages

110

System Error Messages

110

Warning Messages

127

Diagnostic Messages

127

Alert Messages

127

9 Getting Help

128

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Dell R420xr owner manual Getting Help