Compaq Deskpro EN PIII866: What video driver to use in Debian?

I'm setting up a Compaq Deskpro EN PIII 866MHz mini tower computer I
bought the other day with Debian Sarge (3.1 testing). I can't figure
out what graphics chipset it has though, or what settings to put in
/etc/X11/XF86Config-4 . I'm using dpkg-reconfigure xserver-xfree86 to
build the file.

If anyone knows how to configure this properly, I'd really appreciate
your help.

Thanks!
- Andrew Clarke.

Intel i810. I just started going through the list of video drivers
until one worked.