Sure, but it’s a Pentium D dual core CPU. Non-SMP OSes only get half points.
I’m sure any DOS based version of Windows could be convinced to run, at least at plain VGA screen resolutions. But if you want better graphics and sound, yeah, drivers are going to be an issue. It probably doesn’t have any ISA slots so the number of sound cards likely to work well with DOS can probably be enumerated on one hand, and likewise it’d be fun finding a video card with native drivers.
(I think there is a VESA driver for Win 3.x that might kinda work on newer cards? I’d warn that performance might suck compared to a native driver, but at 3ghz that’s probably not a worry, is it.)