Dell Precision 620 Manuel d'utilisateur Page 90
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Noté. / 5. Basé sur avis des utilisateurs
1. Check the monitor cable connections as indicated in "Checking Connections and Switches."
2. If the problem is not resolved, insert the Dell Precision ResourceCD into the CD-ROM drive, and reboot the system. Run the Videotest
group in the Dell Diagnostics.
If any of the tests fail, see "Getting Help" for instructions on obtaining technical assistance.
Troubleshooting the System Board
A system board problem can result from a defective system board component, a faulty power supply, or a defective component connected to the
system board. If an error message indicates a system board problem, perform the following steps:
1. Insert the Dell Precision ResourceCD into the CD-ROM drive, and reboot the system. Run the System Board Devices test group in the
Dell Diagnostics.
If any of the tests fail, see "Getting Help" for instructions on obtaining technical assistance.
2. Turn off the system, including any attached peripherals, and disconnect all the AC power cables from their electrical outlets. Also, disconnect
any telephone or telecommunication cables from the computer.
3. Remove the computer cover.
4. Remove the AGP card brace according to the instructions in "Removing and Replacing the AGP Card Brace."
5. Verify that the power cables from the power supply are firmly connected to the connectors on the system board.
6. Replace the AGP card brace.
7. Replace the computer cover, reconnect the system to an electrical outlet, and turn it on. If the problem is not resolved, proceed to step 8.
8. Perform the procedure in "Troubleshooting Expansion Cards."
If the problem is not resolved, proceed to step 9.
9. Perform the procedure in "Troubleshooting the Keyboard."
If the problem is still not resolved, see "Getting Help" for instructions on obtaining technical assistance.
Troubleshooting a Dead System Board With the RTCRST Jumper
If the system cannot boot and you have exhausted all other troubleshooting options, perform the following steps:
1. Turn off the system, including any attached peripherals, and disconnect all the AC power cables from their electrical outlets. Also, disconnect
any telephone or telecommunication cables from the computer.
2. Remove the computer cover.
3. Remove the AGP card brace according to the instructions in "Removing and Replacing the AGP Card Brace."
4. Install a jumper plug on the RTCRST jumper pins and then remove it.
5. Replace the computer cover, reconnect the system to an electrical outlet, and turn it on.
If the problem is not resolved, see "Getting Help" for instructions on obtaining technical assistance.
Troubleshooting Drives
NOTE: Before disconnecting a peripheral from the system or removing a component from the system board, verify that the standby
power LED on the system board has turned off. For the location of this LED, see Figure 1 in "Installing System Board Options."
CAUTION: Before you remove the computer cover, see "Safety First—For You and Your Computer."
NOTE: Dell Precision WorkStation 620 systems are equipped with diagnostic LEDs to help provide information about possible
problems. Make note of any LED codes you observe before contacting Dell for technical assistance.
CAUTION: Before you remove the computer cover, see "Safety First—For You and Your Computer."
- Notes, Notices, and Cautions 1
- Adjusting Volume 3
- Using Audio Utilities 4
- Installing Audio Drivers 4
- Backing Up Your Files 5
- Basic Checks 5
- Look and Listen 6
- System Setup 7
- Expansion Cards 9
- Adding Memory 11
- Microprocessor Upgrades 14
- SuprFreq Utility Program 16
- Replacing the System Battery 19
- International Dialing Codes 21
- Americas Contact Numbers 22
- Europe Contact Numbers 23
- Features 30
- Before You Start Testing 30
- Advanced Testing 31
- Connecting Drives 35
- Installing SCSI Devices 42
- Troubleshooting the Monitor 45
- Troubleshooting the Keyboard 45
- Troubleshooting the Mouse 45
- Troubleshooting I/O Ports 46
- Help Overview 48
- Contacting Dell 48
- System Board Labels 68
- I/O Ports and Connectors 69
- Interrupt Assignments 74
- Memory Allocations 75
- Technical Assistance 77
- Help Tools 77
- Problems With Your Order 78
- Product Information 78
- Before You Call 79
- Before You Begin 80
- Removing the Computer Cover 80
- Replacing the Computer Cover 81
- Inside Your Computer 83
- Troubleshooting the Battery 88
- Troubleshooting Drives 90
- System Features 92
- Front Panel 95
- Back Panel 96
- Getting Help 97
- System Messages 98
- System Beep Codes 102
- Warning Messages 103
- Diagnostics Messages 103
- Diagnostic LEDs 103
- SNMP Platform Event Traps 105
- User's Guide 106
- Configuring the NIC 107
- Reinstalling the NIC Driver 107
- Installing SCSI Drivers 110
- AC Power Recovery 111
- Asset Tag 111
- Auto Power On 111
- Boot Sequence 111
- CPU Information 112
- Integrated Devices 113
- Keyboard NumLock 114
- PCI IRQ Assignment 114
- Primary Video Controller 115
- System Time 118
- ZIP Floppy Support 118
- Overview 119
- Error Messages 119
- Input Errors 119
- Program Conflicts 120
- Memory Address Conflicts 120
- Microprocessor 121
- System Information 121
- Expansion Bus 121
- Ports and Connectors 122
- Graphics and Video 122
- Back to Contents Page 125
- Using System Setup 125
- System Setup Options 125
- Entering System Setup 126
- System Setup Screen 126
- System Setup Navigation Keys 127
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