Dell PowerEdge R200 Hardware Owner's Manual (PDF) - Page 99

Troubleshooting External Connections, Troubleshooting the Video Subsystem

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Table 4-2. IRQ Assignment Defaults (continued) IRQ Line IRQ6 IRQ7 IRQ8 IRQ9 IRQ10 IRQ11 IRQ12 IRQ13 IRQ14 IRQ15 Assignment Available Available Real-time clock ACPI functions (used for power management) Available Available PS/2 mouse port (available if the mouse is disabled through the System Setup program) Math coprocessor Available 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 Figure 1-1 for the front-panel connectors and Figure 1-2 for the back-panel connectors on your system. Troubleshooting the Video Subsystem Problem • Monitor is not working properly. • Video memory is faulty. Troubleshooting Your System 99

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Troubleshooting Your System
99
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 Figure 1-1 for the front-panel
connectors and Figure 1-2 for the back-panel connectors on your system.
Troubleshooting the Video Subsystem
Problem
•
Monitor is not working properly.
•
Video memory is faulty.
IRQ6
Available
IRQ7
Available
IRQ8
Real-time clock
IRQ9
ACPI functions (used for power management)
IRQ10
Available
IRQ11
Available
IRQ12
PS/2 mouse port (available if the mouse is disabled through the System
Setup program)
IRQ13
Math coprocessor
IRQ14
Available
IRQ15
Available
Table 4-2.
IRQ Assignment Defaults
(continued)
IRQ Line
Assignment