Dell PowerVault DP100 - Manual (Page 75)

Troubleshooting the Video Subsystem
Problem
l Monitor is not working properly.
l Video memory is faulty.
Action
1. Check the system and power connections to the monitor.
2. Determine 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.
3. Run the appropriate online diagnostic test. See Running the System Diagnostics .
If the tests run successfully, the problem is not related to video hardware.
If the tests fail, see Getting Help .
Troubleshooting the Keyboard
Problem
l System message indicates a problem with the keyboard
l Keyboard is not functioning properly
Action
1. If you are using a USB keyboard, enter the System Setup program and ensure that the USB ports are enabled. See Using the System Setup Program .
2. Examine the keyboard and its cable for signs of damage.
3. Swap the faulty keyboard with a working keyboard.
If the problem is resolved, replace the faulty keyboard. See Getting Help .
4. Run the appropriate online diagnostic test. See Using Dell PowerVault Diagnostics .
IRQ2 Interrupt controller 1 to enable IRQ8 through IRQ15
IRQ3 Available
IRQ4 Serial port 1 (COM1 and COM3)
IRQ5 Remote access controller
IRQ6 Diskette drive controller
IRQ7 Available
IRQ8 Real-time clock
IRQ9 ACPI functions (used for power management)
IRQ10 Available
IRQ11 Available
IRQ12 PS/2 mouse port unless the mouse is disabled through the System Setup program
IRQ13 Math coprocessor
IRQ14 IDE optical drive controller
IRQ15 Available