Dell Precision 620 User Manual

Also see for Inspiron 620: Setup guide Upgrade manual System information guide Quick start Quick reference guide

Contents

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 Video testgroup in the Dell Diagnostics.If any of the tests fail, see "Getting Help" for instructions on obtaining technical assistance.Troubleshooting the System BoardA system board problem can result from a defective system board component, a faulty power supply, or a defective component connected to thesystem 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 theDell 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, disconnectany 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 JumperIf 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, disconnectany 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 DrivesNOTE: Before disconnecting a peripheral from the system or removing a component from the system board, verify that the standbypower 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 possibleproblems. 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."