Troubleshooting the system board, Troubleshooting drives – Dell Precision 620 User Manual
Page 90
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
test
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 "
."
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 "
."