The Yamaha AN1x Synthesizer mailing list

E-D,

Your system is crowded, but not unbelievably so.  here's what I see:

>SETTING......HARDWARE USING THE SETTING..............
>00  system timer
>01  standard 101/102 key or microsoft natural keyboard
>02  programmable interrupt controler

These are all normal PC requirements, and couldn't be changed by the user, 
anyway.

>03  communications port (com2)
>04  communications port (com1)

These are the standard locations for your serial ports.  As Reggie said, if 
you don't actually have serial devices connected (and few people do 
anymore) consider disabling the ports.  Depending on how your BIOS works, 
you may be able to do this through BIOS setup alone, or you may have to 
also disable them in Windows' Device Manager.

As an alternative, if you need both of these ports, but never at the same 
time, you could manually configure them to one of the de-facto "sharing" 
configurations in the MS-DOS world (provided that your BIOS supports this):

         {3F8/IRQ4 + 3E8/IRQ4}  or  {2F8/IRQ3 + 2E8/IRQ3}

This will allow each of the serial devices to work in Windows, but only by 
itself.  As an example, I used to use this method to connect my PDA and an 
EPROM programmer -- both serial devices -- to my PC, since I didn't have an 
overpowering need to update my schedule while waiting for a ROM to program.

>05  acpi irq holder for pci irq steering
>05  via teck pci to usb universal host controller

This is really two ways of describing the same interrupt use; i.e., the USB 
host is on IRQ5, and ACPI recognizes it.  If you have no USB devices, you 
can consider disabling it, but I would consider this as the lowest priority 
of Reggie's three suggestions, IMHO.  USB peripherals are becoming very 
common, a single USB host can connect several peripherals, and USB hosts 
share interrupts nicely when not in use.

>06  standard floppy disc controller
>07  epson printer port (lpt1)
>08  system cmos/realtime clock

More normal PC interrupt use, that can't be changed by the user.  (OK, 
technically, the printer IRQ can be moved, but I've never received anything 
but grief when doing so.)

>09  acpi irq holder for pci irq steering
>09  via pci audio controller(wdm)
>09  sci irq used by acpi bus

This boils down to two uses:  The internal audio controller (through ACPI) 
and ACPI's SCI IRQ.  This sharing is fine, though, as the SCI interface is 
used very sporadically after boot.  The bigger concern is, do you really 
need the two sound cards?  If not, ACPI will give IRQ9 to someone else, 
which may smooth things out a bit.  I used to use two sound cards, a Turtle 
Beach Monterey and an Ensoniq Soundscape, and while the increase sound 
palette seemed good on paper, I never really used it to the fullest extent, 
even though both cards were (in their day) high-end wavetable synths.

As with the serial ports, first try to disable the on-board sound system in 
BIOS setup, and then check the Device Manager to make sure the device is 
really disabled.  (If Windows can see the hardware, even after disabling it 
in BIOS, it often "does you a favor" and turns it back on!)

>10  d-link de2200isa pnp lan adapter

Leave this one alone for now.  I'm going to assume that your network 
connection is fine.

>11  acpi irq holder for pci irq steering
>11  acpi irq holder for pci irq steering
>11  yamaha sw1000xg sound system
>11  magnum/xpert 128/xpert99(english)

This could be a problem, if the video card is actually using the IRQ during 
normal use.  (Many video cards call for an IRQ, but only use it during 
video-intense operations like CAD and games.)  Eliminating a serial port or 
the original audio system will free up an interrupt, which will allow 
Windows to move one of these devices to the new space.

>12  microsofr ps12 port mouse
>13  numeric data processor
>14  via bus master pci ide controller
>14  primary ide controller (dual fifo)
>15  via bus master pci ide controller
>15  secondary ide controller (dual fifo)

All of these are PC standard uses, and should be left alone.  Most of them 
couldn't be changed, even  if you wanted to.

I hope this explanation helps.

Regards,

-BW

--
Bruce Wahler
Design Consultant
Ashby Solutions"
www.ashbysolutions.com
CloneWheel Support Group moderator
978.386.7389  voice
978.776.0096  fax
bruce@...