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Old 04-29-2004, 04:18 PM   #1 (permalink)
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Default pentium 4 and IRQs

Hi, can some one tell me how many IRQs does the pentium 4 architecture have
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Old 05-01-2004, 06:20 PM   #2 (permalink)
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Same as any PC - 15

A long time ago some Geeky post-billionnaire thought 'Who will need to connect more than 15 things to a PC... and it's stuck. Things like IRQ Steering make life easier for us, but regardless of CPU - The system architecture of the PC dictates 15 IRQ's and some are reserved like IRQ2 for (IIRC) system clock etc.

IRQ's are best ignored unless you're getting conflicts.

hth
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Old 05-02-2004, 08:14 AM   #3 (permalink)
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the system clock is the real time clock(date:time), right?
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Old 05-02-2004, 10:03 AM   #4 (permalink)
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errrm...no
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