I've just replaced my WinXP ACPI driver with the Standard PC driver. Not a recommended course of action, I know, but I'm desperate to get my pro soundcard, an m-audio D1010LT, working glitch-free.
After reboot, XP insisted on reinstalling all hardware drivers, but it had a problem with the Nvidia IDE 2.6 driver ('not compatible with this processor' or something), so I eventually made it install a standard IDE driver. Now i have an IRQ conflict between the 'Primary IDE channel' and the 'Standard IDE/ESDI Hard Disk Controller'. I'm not sure how this is impacting performance (since I've never used this PC with ACPI disabled before) but I'd very much like to get rid of the yellow exclamation mark next to Primary IDE channel. Below is a list of IRQ assignments
(ISA) 0 System timer
(ISA) 1 PC/AT Enhanced PS/2 Keyboard
(ISA) 3 Communications Port (COM2)
(ISA) 4 Communications Port (COM1)
(ISA) 6 Standard floppy disk controller
(ISA) 8 System CMOS/real time clock
(ISA) 10 MPU-401 compatible MIDI device
(ISA) 12 Microsoft PS/2 Mouse
(ISA) 13 Numeric data processor
(ISA) 14 Primary IDE channel (Yellow exclamation mark in Dev manager front page)
(ISA) 14 Standard IDE/ESDI Hard Disk Controller
(ISA) 15 Secondary IDE channel
(PCI) 5 NVIDIA nForce PCI System Management
(PCI) 5 NVIDIA(R) nForce (TM) Audio Codec Interface
(PCI) 5 Standard OpenHCD USB Host Controller
(PCI) 11 M-Audio Delta 1010LT
(PCI) 11 NVIDIA GeForce4 MX440
(PCI) 11 Standard Enhanced PCI to USB Host Controller
(PCI) 11 Standard OpenHCD USB Host Controller
Can anyone suggest a course of action other than reinstalling ACPI or living with the problem? And why exactly is nothing showing up on IRQ 9?
I'd be happy to provide any additional info.