HP M2258TU, M2599XX, M2526TU, M2525TU, M2528TU, M2500 System Interrupts, Hardware IRQ System Function

Models: M2200 M2525TU M2527TU M2501TU M2261TU M2267TU M2504TU M2523TU M2529TU M2273TU M2521TU M2520TU M2246AP M2251AP M2507TU M2265TU M2510TU M2513TU M2274TU M2515LA M2522TU M2254AP M2425LA M2276TU M2277TU M2258TU M2502TU M2508TU M2514TU M2263TU M2517TU M2599XX M2257TU M2500 M2519TU M2528TU M2250AP M2503TU M2505TU M2262TU M2526TU M2506TU M2516TU M2259TU M2512TU

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Specifications

	Table 6-9
	System Interrupts

Hardware IRQ	System Function

IRQ0	System timer

IRQ1	Quick Launch buttons

IRQ2	Cascaded

IRQ3	USB2 Enhanced Host Controller—24CD

IRQ4	COM1

IRQ5*	Conexant AC—Link Audio
	SMBus Controller—24C3
	Data Fax Modem with SmartCP

IRQ6	Diskette drive

IRQ7*	Parallel port

IRQ8	System CMOS/real-time clock

IRQ9*	Microsoft ACPI-compliant system

IRQ10*	USB UHCI controller—24C2
	GM/GME Graphic Controller
	Realtek RTL8139 Family PCI fast Ethernet Controller

IRQ11	USB EHCI controller—24CD
	USB UHCI controller—24C4
	USB UHCI controller—24C7
	Pro/Wireless 2300BG
	TI OHCI 1394 host controller
	TI PCI1410 CardBus controller

*Default configuration

✎PC Card may assert IRQ3, IRQ4, IRQ5, IRQ7, or IRQ20.

Maintenance and Service Guide

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