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IBM Personal Computer User Guide
You can specify any of the interrupt requests (IRQs) in the following list as being
exempt from causing the system to enter into or awaken from a power management
state. An I/O device signals the operating system by causing an IRQ to occur. When
the operating system is ready to respond to the request, it interrupts itself and
performs the service.
Choice: Enabled
• IRQ3 (COM2)
• IRQ4 (Available)
•IRQ5 (Audio)
• IRQ6 (Diskette drive)
•IRQ7 (LPT1)
• IRQ8 (RTC Alarm)
• IRQ9 (IRQ2 Redirect)
• IRQ10 (Reserved)
• IRQ11 (Reserved)
• IRQ12 (PS/2 Mouse)
• IRQ13 (Coprocessor)
• IRQ14 (Hard disk)
• IRQ15 (Reserved)