Troubleshooting External Connections, Problem, Action | Dell R900

Table 4-2. IRQ Assignment Defaults

IRQ Line	Assignment

IRQ5	Remote access controller
IRQ6	Diskette drive controller
IRQ7	Reserved
IRQ8	Real-time clock
IRQ9	ACPI functions (used for power management)
IRQ10	Available
IRQ11	Available
IRQ12	PS/2 mouse port unless the mouse is disabled through the System Setup
	program
IRQ13	Math coprocessor
IRQ14	IDE CD drive controller
IRQ15	Available

Troubleshooting External Connections

Loose or improperly connected cables are the most likely source of problems for the system, monitor, and other peripherals (such as a printer, keyboard, mouse, or other external device). Ensure that all external cables are securely attached to the external connectors on your system. See "Front Panel Features and Indicators" on page 13 and "Back Panel Features and Indicators" on page 19 for the front and back panel connectors on your system.

Troubleshooting the Video Subsystem

Problem

•Monitor is not working properly.

•Video memory is faulty.

Action

1Check the system and power connections to the monitor.

2Determine whether the system has an expansion card with a video output connector.

Troubleshooting Your System

129

Image 129

Dell R900 manual Troubleshooting External Connections, Troubleshooting the Video Subsystem, Problem, Action, 129

Contents

Page September XK946 Contents Removing and Installing the Top Cover Disabling a Forgotten Password Replacing a Hard Drive Carrier 101 Safety First-For You and Your System Replacing the System BatteryTroubleshooting IRQ Assignment Conflicts Troubleshooting External Connections Using PowerEdge Diagnostics 149 System Diagnostics Features Troubleshooting a Wet System 134Executing System Diagnostics 150 133 153 Glossary Other Information You May Need About Your System Keystrokes for Accessing System Functions Description Accessing System Features During Startup Front Panel Features and Indicators Before the power is turned off. If Hard Drive Indicator Codes Hard Drive Indicators Smart Hard Drive Indicators Pattern Green element Amber eLement Connecting External Devices Back Panel Features and Indicators Power Indicator Codes Indicator Function Redundant Power Supply Indicators Indicators Illumination Meaning NIC IndicationsLCD Status Messages System Name LCD Status Messages Code Test Causes LCD Status Messages Code Test Causes Corrective Actions E1210 Cmos Batt E1418 CPU # E141F CPU PCI Perr E1712 PCI Serr CPU DMA E2020 CPU Config E2112 Mem Spare Crd # Dimm Removing LCD Status Messages Solving Problems Described by LCD Status Messages System Messages Corrective Action System Messages System Messages Remote Access Controller initialization Defective system board Expansion card improperly installed or Alert Messages Diagnostics Messages About Your System Responding to Error Messages Entering the System Setup Program Setup Menu Key Use Function Description Using the System Setup Program Main Screen System Setup Options System Setup Program Options Description CPU Information Screen Memory Information ScreenMemory Information Screen Option Description CPU Information Screen Option Description Integrated Devices Screen Options Description Integrated Devices Screen Serial Communication Screen PCI IRQ ScreenPCI IRQ Screen Options Description Serial Communication Screen Options Description System Security Screen Embedded Server Management ScreenEmbedded Server Management Options Description System Security Screen Options Description Trusted Platform Module TPM Security Screen System and Setup Password FeaturesExit Screen 10. TPM Security Screen Options Description Assigning a System Password Using the System Password Using Your System Password to Secure Your System Changing the System Password Disabling an Existing System Password Assigning a Setup Password Using the Setup Password Baseboard Management Controller Configuration Disabling a Forgotten PasswordOperating With a Setup Password Enabled Disabling the System Password BMC Setup Module Options Entering the BMC Setup Module Using the System Setup Program Installing System Components Inside the System Recommended Tools Inside the System Removing and Installing the Top Cover Removing the Top Cover Installing the Top Cover Removing the Top Cover Hard Drives Before You BeginRemoving a Drive Blank Removing a Drive Blank Installing a Drive Blank Removing a Hot-Plug Hard Drive Removing a Hot-Plug Hard Drive Installing a Hot-Plug Hard Drive Installing a SAS Hard Drive Into a SATAu Drive Carrier Replacing a Hard Drive CarrierRemoving a Hard Drive From a Hard Drive Carrier SATAu SAS Removing a Power Supply Power Supplies Removing a Power Supply Installing a Power Supply Installing a Front System Fan System FansRemoving a Front System Fan Hot-plugging a Front System Fan Hot-plugging a Front System Fan Removing a Back System Fan Hot-plugging a Back System Fan Installing a Back System Fan Removing a Back System Fan Housing Removing a Back System Fan Housing Installing a Back System Fan Housing Removing the Cooling Shroud Cooling Shroud Removing the Cooling Shroud Installing the Cooling Shroud SAS Controller Card 10. SAS RAID Controller Card Installing an SAS Controller Card Removing a SAS Controller CardSAS and SAS RAID Controller Card Cabling Guidelines 11 .5-Inch SAS / SAS RAID Cabling Sataa connector on system board 12 .5-Inch SAS / SAS RAID Cabling Installing a RAID Battery RAID Battery 13. Installing a RAID Battery Removing a RAID Battery Configuring the Boot Device Installing a PCI Express CardPCI Express Add-in Cards 14. Installing and Removing PCI Express Cards Optical Drive Removing a PCI Express CardRemoving the Optical Drive 15. Removing the Optical Drive Installing the Optical Drive Replacing an Optical Drive Mounting Tray 16. Optical Drive and Optical Drive Mounting Tray System Memory General Memory Module Installation Guidelines Memory Sparing Support Non-Optimal Memory Configurations Memory Mirroring Support Valid Memory Configurations BranchChannel Riser a Riser B Riser C Riser D Memory Modes Dimm A1 Dimm B1 Dimm C1 Dimm D1 Removing a Memory Riser 17. Removing a Memory Riser Memory Population Rules Installing a Memory Riser Removing the Memory Riser Cover Installing Memory Modules 100 18. Installing Memory Modules Removing Memory Modules ProcessorsRemoving a Processor Heat Sink 101 102 103 19. Installing and Removing a Processor Heat Sink Installing a Processor Heat Sink Removing a Processor104 105 Installing a Processor 21. Removing a Processor Filler Blank 106 107 System Battery Replacing the System Battery108 109 22. Replacing the System Battery Riser Activating the NIC TOERemoving the I/O Riser 110 111 Installing the I/O Riser 112 Installing a Drac 113 24. Installing a Drac SAS Backplane Service-only Procedure Removing the SAS Backplane 3.5 Hard Drives114 25. Removing the SAS Backplane 3.5-inch Hard Drives 115 Installing the SAS Backplane 3.5-inch Hard Drives Removing the SAS Backplane 2.5-inch Hard Drives116 117 26. Removing the SAS Backplane 2.5-inch Hard Drives 118 Installing the SAS Backplane 2.5 Hard Drives Removing the Power Interposer Board119 120 27. Removing the Power Interposer Board 121 Installing the Power Interposer Board System Board Service-only Procedure Removing the System Board122 123 124 Installing the System Board 125 126 Start-Up Routine Safety First-For You and Your System127 Start-Up Routine Indications Look/listen for Action IRQ Assignment Defaults IRQ Line Troubleshooting IRQ Assignment ConflictsChecking the Equipment 128 Troubleshooting the Video Subsystem Troubleshooting External ConnectionsProblem Action 130 Troubleshooting the Keyboard Troubleshooting Basic I/O Functions Troubleshooting the Mouse131 Troubleshooting a Serial I/O Device Troubleshooting a USB Device132 133 Troubleshooting a NIC 134 Troubleshooting a Wet System 135 Troubleshooting a Damaged System 136 Troubleshooting the System Battery 137 Troubleshooting Power Supplies Troubleshooting System Cooling Troubleshooting a Fan138 139 Troubleshooting System Memory 140 141 Troubleshooting an Optical Drive 142 Troubleshooting a Hard Drive 143 144 Troubleshooting a SAS or SAS RAID Controller Card 145 Troubleshooting Expansion Cards 146 147 Troubleshooting Processors 148 Using PowerEdge Diagnostics System Diagnostics Features149 Executing System Diagnostics When to Use the System DiagnosticsSystem Diagnostics Testing Options System Diagnostics Testing Options Function Selecting Devices for Testing Using the Custom Test OptionsSelecting Diagnostics Options 151 152 Viewing Information and Results 153 System Board Jumpers and Connectors System Board Connectors System Board Jumpers Location Setting Description154 155 System Board Connectors Description 156 SAS Backplane Connectors 157 SAS Backplane Connectors 2.5-Inch System Front 158 SAS Backplane Connectors 2.5-Inch System Back 159 SAS Backplane Connectors 3.5-inch x5 Option Front 160 Power Interposer Connectors 161 Power Interposer Connectors 2.5-inch x8 Option Front 162 163 164 165 Obtaining Assistance 166 Online Services Automated Order-Status Service Support Service167 168 Before You Call 169 Diagnostics Checklist 170 Contacting Dell 171 Glossary 172 173 174 175 176 177 178 179 180 181 182 183 Index 184 185 186 NIC 187 Post 188 Expansion card 189 190