Dell PowerEdge R420 Owner's Manual - Page 6

Installing The Hard-Drive Backplane

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87

Control Panel Assembly

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88

Removing The Control Panel

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88

Installing The Control Panel

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89

Removing The Control-Panel Module

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90

Installing The Control-Panel Module

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93

VGA Module

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94

Removing The VGA Module

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94

Installing The VGA Module

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95

Power Distribution Board Shroud

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95

Removing The Power Distribution Board Shroud

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95

Installing The Power Distribution Board Shroud

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96

Power Distribution Board

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97

Removing The Power Distribution Board

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97

Installing The Power Distribution Board

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98

System Board

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98

Removing The System Board

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98

Installing The System Board

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99

4 Troubleshooting Your System

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101

Safety First—For You And Your System

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101

Troubleshooting System Startup Failure

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101

Troubleshooting External Connections

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101

Troubleshooting The Video Subsystem

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101

Troubleshooting A USB Device

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101

Troubleshooting A Serial I/O Device

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102

Troubleshooting A NIC

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102

Troubleshooting A Wet System

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102

Troubleshooting A Damaged System

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103

Troubleshooting The System Battery

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104

Troubleshooting Power Supplies

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104

Troubleshooting Cooling Problems

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104

Troubleshooting Cooling Fans

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105

Troubleshooting System Memory

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105

Troubleshooting An Internal USB Key

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106

Troubleshooting An SD Card

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106

Troubleshooting An Optical Drive

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107

Troubleshooting A Tape Backup Unit

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107

Troubleshooting A Hard Drive

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108

Troubleshooting A Storage Controller

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108

Troubleshooting Expansion Cards

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109

Troubleshooting Processors

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110

Section	Page
Contents	3
About Your System	9
Front-Panel Features And Indicators	9
LCD Panel Features	12
Home Screen	13
Setup Menu	13
View Menu	14
Diagnostic Indicators	14
Hard-Drive Indicator Patterns	16
Back-Panel Features And Indicators	17
NIC Indicator Codes	18
Power Indicator Codes	18
Other Information You May Need	19
Using The System Setup And Boot Manager	21
Choosing The System Boot Mode	21
Entering System Setup	22
Responding To Error Messages	22
Using The System Setup Navigation Keys	22
System Setup Options	22
System Setup Main Screen	23
System BIOS Screen	23
System Information Screen	23
Memory Settings Screen	24
Processor Settings Screen	24
SATA Settings Screen	25
Boot Settings Screen	26
Integrated Devices Screen	26
Serial Communications Screen	27
System Profile Settings Screen	28
System Security Screen	29
Miscellaneous Settings	30
System And Setup Password Features	30
Assigning A System And/Or Setup Password	30
Deleting Or Changing An Existing Setup Password	31
Using Your System Password To Secure Your System	32
Operating With A Setup Password Enabled	32
Entering The UEFI Boot Manager	32
Using The Boot Manager Navigation Keys	33
Boot Manager Screen	33
UEFI Boot Menu	34
Embedded System Management	34
iDRAC Settings Utility	34
Entering The iDRAC Settings Utility	34
Installing System Components	35
Recommended Tools	35
Front Bezel (Optional)	35
Installing The Front Bezel	35
Removing The Front Bezel	36
Opening And Closing The System	36
Opening The System	36
Closing The System	37
Inside The System	37
Cooling Shroud	40
Removing The Cooling Shroud	40
Installing The Cooling Shroud	41
System Memory	41
General Memory Module Installation Guidelines	43
Mode-Specific Guidelines	43
Advanced ECC (Lockstep)	43
Memory Optimized (Independent Channel) Mode	44
Memory Sparing	44
Memory Mirroring	44
Sample Memory Configurations	44
Removing Memory Modules	45
Installing Memory Modules	47
Hard Drives	47
Removing A 2.5 Inch Hard-Drive Blank	48
Installing A 2.5 Inch Hard-Drive Blank	49
Removing A 3.5 Inch Hard-Drive Blank	49
Installing A 3.5 Inch Hard-Drive Blank	49
Removing A Hot-Swap Hard Drive	49
Installing A Hot-Swap Hard Drive	50
Removing A Cabled Hard Drive	51
Installing A Cabled Hard Drive	52
Removing A 2.5 Inch Hard Drive From A 3.5 Inch Hard-Drive Adapter	52
Installing A 2.5 Inch Hard Drive Into A 3.5 Inch Hard-Drive Adapter	53
Removing A Hard Drive Or A Hard-Drive Adapter From A Hard-Drive Carrier	53
Installing A Hard Drive Or A Hard-Drive Adapter Into A Hard-Drive Carrier	56
Optical Drive (Optional)	56
Removing The Optical Drive In Hot-Swappable Hard-Drive Systems	56
Installing The Optical Drive In Hot-Swappable Hard-Drive Systems	57
Removing The Optical Drive In Cabled Hard-Drive Systems	58
Installing The Optical Drive In Cabled Hard-Drive Systems	59
Cooling Fans	60
Removing A Cooling Fan	60
Installing A Cooling Fan	61
Internal USB Memory Key (Optional)	62
Replacing The Internal USB Key	62
Expansion Cards And Expansion-Card Risers	62
Expansion Card Installation Guidelines	63
Removing An Expansion Card	63
Installing An Expansion Card	65
Removing Expansion-Card Risers 1 And 2	66
Installing Expansion-Card Risers 1 And 2	67
iDRAC Ports Card (Optional)	67
Removing The iDRAC Ports Card	68
Installing The iDRAC Ports Card	69
SD vFlash Card	69
Replacing An SD vFlash Card	69
Internal Dual SD Module	70
Removing The Internal Dual SD Module	70
Installing The Internal Dual SD Module	71
Internal SD Card	72
Removing An Internal SD Card	72
Installing An Internal SD Card	72
Integrated Storage Controller Card	72
Removing The Integrated Storage Controller Card	73
Installing The Integrated Storage Controller Card	74
Processors	74
Removing A Processor	74
Installing A Processor	76
Power Supplies	77
Hot Spare Feature	78
Removing A Redundant Power Supply	78
Installing A Redundant Power Supply	79
Removing A Non-Redundant Power Supply	79
Installing A Non-Redundant Power Supply	80
Removing The Power Supply Blank	81
Installing The Power Supply Blank	81
System Battery	81
Replacing The System Battery	81
Hard-Drive Backplane	82
Removing The Hard-Drive Backplane	83
Installing The Hard-Drive Backplane	87
Control Panel Assembly	88
Removing The Control Panel	88
Installing The Control Panel	89
Removing The Control-Panel Module	90
Installing The Control-Panel Module	93
VGA Module	94
Removing The VGA Module	94
Installing The VGA Module	95
Power Distribution Board Shroud	95
Removing The Power Distribution Board Shroud	95
Installing The Power Distribution Board Shroud	96
Power Distribution Board	97
Removing The Power Distribution Board	97
Installing The Power Distribution Board	98
System Board	98
Removing The System Board	98
Installing The System Board	99
Troubleshooting Your System	101
Safety First—For You And Your System	101
Troubleshooting System Startup Failure	101
Troubleshooting External Connections	101
Troubleshooting The Video Subsystem	101
Troubleshooting A USB Device	101
Troubleshooting A Serial I/O Device	102
Troubleshooting A NIC	102
Troubleshooting A Wet System	102
Troubleshooting A Damaged System	103
Troubleshooting The System Battery	104
Troubleshooting Power Supplies	104
Troubleshooting Cooling Problems	104
Troubleshooting Cooling Fans	105
Troubleshooting System Memory	105
Troubleshooting An Internal USB Key	106
Troubleshooting An SD Card	106
Troubleshooting An Optical Drive	107
Troubleshooting A Tape Backup Unit	107
Troubleshooting A Hard Drive	108
Troubleshooting A Storage Controller	108
Troubleshooting Expansion Cards	109
Troubleshooting Processors	110
Using System Diagnostics	111
Dell Online Diagnostics	111
Dell Embedded System Diagnostics	111
When To Use The Embedded System Diagnostics	111
Running The Embedded System Diagnostics	111
System Diagnostic Controls	112
Jumpers And Connectors	113
System Board Jumper Settings	113
System Board Connectors	114
Disabling A Forgotten Password	115
Technical Specifications	117
System Messages	121
LCD Messages	121
Viewing LCD Messages	121
Removing LCD Messages	121
System Error Messages	121
Warning Messages	135
Diagnostic Messages	135
Alert Messages	135
Getting Help	137

Dell PowerEdge R420 Owner's Manual - Page 6

Troubleshooting Your System, Installing The Power Distribution Board Shroud - problems

Page 6 highlights