What kind of problems are you having with the serial ports? Lockups?
You can defeat much of ACPI by selecting always on.(Control Panel)
The Device Mfr may not be telling the whole story. Laptops have serial ports
integrated with the laptop bios and MBD. Most desktops these days have at
least one serial port integrated with BIOS and the MBD.
I assume that some sort of PCI buss card/device that behaves as a serial
port or ports. If so, it's more likely that the acpi functions on it are not
fully or correctly implemented.
"Brian Anderson" <(E-Mail Removed)> wrote in message
news:A7A10170-FD9F-4C59-A1E0-(E-Mail Removed)...
>I have been experiencing problems with serial port devices and Windows XP.
> The manufacturer of the device suggested that this problem is related to
> acpi
> and that we need to disable acpi in the bios and in Windows. Is there
> any
> way to disable acpi in windows without reinstalling the OS as a standard
> pc
> (f5 option)? Is it possible that these serial devices will not allow IRQ
> sharing and that windows confuses the signal with some other device
> sharing
> the IRQ? How much of this relies on the motherboard; I've read that
> windows
> will enable acpi regardless of what the bios reports? Another interesting
> thing is that it only has affected desktop systems and not laptops. What
> is
> the difference between a serial port on a laptop and a serial port on a
> desktop?
>
> tia
> Brian
>
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