Table
IRQ Line | Assignment |
|
|
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
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.
In this system configuration, the monitor cable should normally be connected to the connector on the expansion card, not to the system’s integrated video connector.
To verify that the monitor is connected to the correct video connector, turn off the system and wait for 1 minute, then connect the monitor to the other video connector and turn the system on again.
3Determine whether the system has monitors attached to both the front and back video connectors.
The system supports only one monitor attached to either the front or back video connector. When a monitor is connected to the front panel, the
If two monitors are attached to the system, disconnect one monitor. If the problem is not resolved, continue to the next step.
4Run the appropriate online diagnostic test. See "Using Dell PowerEdge Diagnostics" on page 117. If the test runs successfully, the problem is not related to video hardware.
If the test fails, see "Getting Help" on page 129.
Troubleshooting Your System
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