Dell PowerEdge R720 Owner's Manual - Page 7

Troubleshooting An Optical Drive

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125

Troubleshooting A Tape Backup Unit

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125

Troubleshooting A Hard Drive

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126

Troubleshooting A Storage Controller

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126

Troubleshooting Expansion Cards

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127

Troubleshooting Processors

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128

5 Using System Diagnostics

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129

Dell Online Diagnostics

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129

Dell Embedded System Diagnostics

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129

When To Use The Embedded System Diagnostics

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129

Running The Embedded System Diagnostics

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129

System Diagnostic Controls

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130

6 Jumpers And Connectors

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131

System Board Jumper Settings

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131

System Board Connectors

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132

Disabling A Forgotten Password

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134

7 Technical Specifications

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135

8 System Messages

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141

LCD Messages

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141

Viewing LCD Messages

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141

Removing LCD Messages

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141

System Error Messages

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141

Warning Messages

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155

Diagnostic Messages

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155

Alert Messages

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155

9 Getting Help

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157

Contacting Dell

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157

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	13
Diagnostic Indicators	14
Hard-Drive Indicator Patterns	16
Back-Panel Features And Indicators	16
NIC Indicator Codes	18
Power Indicator Codes	18
Other Information You May Need	20
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 System And/Or 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
Removing The Front Bezel	35
Installing The Front Bezel	36
Opening And Closing The System	36
Opening The System	36
Closing The System	37
Inside The System	37
Cooling Shroud	39
Removing The Cooling Shroud	39
Installing The Cooling Shroud	40
System Memory	40
General Memory Module Installation Guidelines	43
Mode-Specific Guidelines	44
Advanced ECC (Lockstep)	44
Memory Optimized (Independent Channel) Mode	44
Memory Sparing	44
Memory Mirroring	44
Sample Memory Configurations	45
Removing Memory Modules	47
Installing Memory Modules	48
Hard Drives	49
Removing A 2.5 Inch Hard-Drive Blank	49
Installing A 2.5 Inch Hard-Drive Blank	50
Removing A 2.5 Inch Hard-Drive Blank (Back)	50
Installing A 2.5 Inch Hard-Drive Blank (Back)	51
Removing A 3.5 Inch Hard-Drive Blank	51
Installing A 3.5 Inch Hard-Drive Blank	51
Removing A Hot-Swap Hard Drive	51
Installing A Hot-Swap Hard Drive	52
Removing A Hard Drive From A Hard-Drive Carrier	53
Installing A Hard Drive Into A Hard-Drive Carrier	53
Optical Drive (Optional)	54
Removing The Optical Drive	54
Installing The Optical Drive	55
Cooling Fans	56
Removing A Cooling Fan	56
Installing A Cooling Fan	57
Removing The Cooling-Fan Assembly	57
Installing The Cooling-Fan Assembly	58
Internal USB Memory Key (Optional)	59
Replacing The Internal USB Key	59
PCIe Card Holder	59
Removing The PCIe Card Holder	60
Installing The PCIe Card Holder	61
Opening And Closing The PCIe Card Holder Latch	61
Cable Retention Bracket	62
Removing The Cable Retention Bracket	62
Installing The Cable Retention Bracket	63
Expansion Cards And Expansion-Card Risers	63
Expansion Card Installation Guidelines	63
Removing An Expansion Card From The Expansion-Card Riser 2 Or 3	64
Installing An Expansion Card Into The Expansion-Card Riser 2 Or 3	65
Removing An Expansion Card From The Expansion-Card Riser 1	66
Installing An Expansion Card Into The Expansion-Card Riser 1	67
Removing Expansion-Card Risers	68
Installing Expansion-Card Risers	71
SD vFlash Card	71
Replacing An SD vFlash Card	71
Removing The vFlash Media Unit	72
Installing The vFlash Media Unit	73
Internal Dual SD Module	74
Removing The Internal Dual SD Module	74
Installing The Internal Dual SD Module	75
Internal SD Card	76
Removing An Internal SD Card	76
Installing An Internal SD Card	76
Integrated Storage Controller Card	76
Removing The Integrated Storage Controller Card	77
Installing The Integrated Storage Controller Card	78
Network Daughter Card	78
Removing The Network Daughter Card	78
Installing The Network Daughter Card	79
Processors	79
Removing A Processor	80
Installing A Processor	83
Power Supplies	84
Hot Spare Feature	85
Removing An AC Power Supply	85
Installing An AC Power Supply	86
Wiring Instructions For A DC Power Supply	87
Input Requirements	87
Kit Contents	87
Required Tools	87
Required Wires	87
Assembling And Connecting The Safety Ground Wire	87
Assembling The DC Input Power Wires	88
Removing A DC Power Supply	89
Installing A DC Power Supply	90
Removing The Power Supply Blank	91
Installing The Power Supply Blank	91
System Battery	91
Replacing The System Battery	91
Hard-Drive Backplane	92
Removing The Hard-Drive Backplane	93
Installing The Hard-Drive Backplane	105
Removing The Optional Hard-Drive Backplane (Back)	106
Installing The Optional Hard-Drive Backplane (Back)	108
Control Panel	109
Removing The Control Panel (PowerEdge R720)	109
Installing The Control Panel (PowerEdge R720)	111
Removing The Control Panel (PowerEdge R720xd)	111
Installing The Control Panel (PowerEdge R720xd)	112
Removing The I/O Panel (PowerEdge R720xd)	113
Installing The I/O Panel (PowerEdge R720xd)	114
System Board	114
Removing The System Board	114
Installing The System Board	116
Troubleshooting Your System	119
Safety First—For You And Your System	119
Troubleshooting System Startup Failure	119
Troubleshooting External Connections	119
Troubleshooting The Video Subsystem	119
Troubleshooting A USB Device	119
Troubleshooting A Serial I/O Device	120
Troubleshooting A NIC	120
Troubleshooting A Wet System	120
Troubleshooting A Damaged System	121
Troubleshooting The System Battery	122
Troubleshooting Power Supplies	122
Troubleshooting Cooling Problems	122
Troubleshooting Cooling Fans	123
Troubleshooting System Memory	123
Troubleshooting An Internal USB Key	124
Troubleshooting An SD Card	124
Troubleshooting An Optical Drive	125
Troubleshooting A Tape Backup Unit	125
Troubleshooting A Hard Drive	126
Troubleshooting A Storage Controller	126
Troubleshooting Expansion Cards	127
Troubleshooting Processors	128
Using System Diagnostics	129
Dell Online Diagnostics	129
Dell Embedded System Diagnostics	129
When To Use The Embedded System Diagnostics	129
Running The Embedded System Diagnostics	129
System Diagnostic Controls	130
Jumpers And Connectors	131
System Board Jumper Settings	131
System Board Connectors	132
Disabling A Forgotten Password	134
Technical Specifications	135
System Messages	141
LCD Messages	141
Viewing LCD Messages	141
Removing LCD Messages	141
System Error Messages	141
Warning Messages	155
Diagnostic Messages	155
Alert Messages	155
Getting Help	157

Dell PowerEdge R720 Owner's Manual - Page 7

Using System Diagnostics, Jumpers And Connectors, Technical Specifications, System Messages - troubleshooting

Page 7 highlights