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Troubleshooting your system, Safety first—for you and your system, Start-up routine – Dell PowerVault DP100 User Manual

Page 74: Checking the equipment, Troubleshooting irq assignment conflicts

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Troubleshooting Your System

Dell™ PowerVault™ 100 Systems Hardware Owner's Manual 

 

Safety First—For You and Your System

To perform certain procedures in this document, you must remove the system cover and work inside the system. While working inside the system, do not
attempt to service the system except as explained in this guide and elsewhere in your system documentation.

 

 

Start-Up Routine

Look and listen during the system's start-up routine for the indications described in Table 5-1.

 

Checking the Equipment

This section provides troubleshooting procedures for external devices attached to the system, such as the monitor, keyboard, or mouse. Before you perform
any of the procedures, see "Troubleshooting External Connections."

 

Troubleshooting IRQ Assignment Conflicts

Most PCI devices can share an IRQ with another device, but they cannot use an IRQ simultaneously. To avoid this type of conflict, see the documentation for
each PCI device for specific IRQ requirements.

Table 5

-2

lists the IRQ assignments.

 

Table 5-2. IRQ Assignment Defaults 

  

Safety First—For You and Your System

  

Troubleshooting System Cooling Problems

  

Start-Up Routine

  

Troubleshooting System Memory

  

Checking the Equipment

  

Troubleshooting a Diskette Drive

  

Troubleshooting the Keyboard

  

Troubleshooting an Optical Drive

  

Troubleshooting Serial I/O Problems

  

Troubleshooting an External SCSI Tape Drive

  

Troubleshooting a NIC

  

Troubleshooting a Hard Drive

  

Troubleshooting External Connections

  

Troubleshooting SATA Hard Drives

  

Troubleshooting a Wet System

  

Troubleshooting a SAS RAID Controller

  

Troubleshooting a Damaged System

  

Troubleshooting Expansion Cards

  

Troubleshooting the System Battery

  

Troubleshooting the Microprocessor

  

Troubleshooting Power Supplies

 

CAUTION:

Only trained service technicians are authorized to remove the system cover and access any of the components inside the system.

Before performing any procedure, see your Product Information Guide for complete information about safety precautions, working inside the
computer and protecting against electrostatic discharge.

 

Look/listen for:

 

Action

A status or error message displayed on the monitor.

See

System Messages

.

A series of beeps emitted by the system.

See

System Beep Codes

.

Diagnostic indicator lights indicate a problem.

See

Diagnostics Indicator Codes

.

Alert messages from the systems management software.

See the systems management software documentation.

The monitor's power indicator.

See

Troubleshooting the Video Subsystem

.

The keyboard indicators.

See

Troubleshooting the Keyboard

.

The USB device activity indicator.

See

Troubleshooting a USB Device

.

The diskette drive activity indicator.

See

Troubleshooting a Diskette Drive

.

The optical drive activity indicator.

See

Troubleshooting an Optical Drive

.

The hard-drive activity indicator.

See

Troubleshooting a Hard Drive

.

An unfamiliar constant scraping or grinding sound when you
access a drive.

See

Getting Help

.

 

IRQ Line

 

Assignment

IRQ0

System timer

IRQ1

Keyboard controller