APC PCS for Dell XPS Gen 3

I just purchased an APC battery UPS for my new, not delivered, Gen 3. Reading information on it in APC's knowledge base I came accross this. It deals with the automatic shutdown of a computer in the event of a power failure.

Is the statement true or has this been corrected?
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What is the installation process of PowerChute on Dell Dimension computers?
Extra steps must be taken to ensure the proper operation of PowerChute on these
systems.
Answer
Problem/Solution:

PowerChute plus, Pro or v/s on a Dell Dimension computer special care must be
taken due to the Dell Dimension BIOS. The Dell Dimension XPS series of
computers uses a BIOS that does not allow Serial 1 and Serial 2 to use any IRQ
other than the standard IRQ3, IRQ4. If the IRQ for the serial port is changed
in the operating system the BIOS still uses the standard IRQ when the port is
polled.

In order for PowerChute plus, v/s, or pro to operate properly the following
conditions must be met:

If there is an internal modem (or another system device) that uses IRQ3 or
IRQ4, one of the serial ports must be disabled (the other serial port must be
set to AUTO) in the BIOS. The only work around is to move the modem to
another IRQ other than 3 or 4.

Another issue with the Dell BIOS is a detection problem. If another device is
using IRQ3 or IRQ4, the BIOS must have both ports set to AUTO. Windows NT and
Windows 95 will not detect a serial port hard coded to COM1, COM2, COM3, or
COM4 (in the BIOS) under this circumstance.

Future versions of the Dell BIOS may fix the above issues. However, always
consult Dell before a BIOS upgrade is done. Using TFTP or XMODEM the latest
version of the Dell BIOS can be loaded into the current Dell BIOS chip. The
latest version of the BIOS can be downloaded from the following website
directory.
Thanks for help
Tom