I kept that thing running until 2008 or 2009. Great machine.
The technology change from 1988 to 1998 was really huge, much more compared to what you could get since 2010 until today.
Yes I realize there were accelerator cards for Amigas later on, like the BlizzardPPC, but they weren't an officially supported option by Commodore (most accelerators came out after Commodore was pronounced dead in 1994) and were more like kludges.
(if not Commodore's incompetence. E.g. Apple did manage to hang on)
Tualatin for its over clockable head room. The Sempron for its oddly large L1 cache for the spec.
I was however lucky enough to be able to get a Tyan Tiger MPX alongside a couple of 'Morgan' core Durons... Can't remember if they were 1.0 or 1.2GHZ... But wow that thing was -nice- on Windows 2000 and held up better than most than other systems I built in that era (Although, in retrospect that may have been because most other builds I did suffered from the capacitor plague...)
The -intended- purpose was Dual Athlon MPs.
That said, AFAIK some early AXPs could be used, many later ones could have the bridges 'repaired' to allow dual operation.
Early Morgan core (Model 7) Durons however could also run MP.
One big pain point however, the built in USB was broken on early revs (but hey, they bundled a PCI USB2.0 card to compensate) but also the chipset was... -meh-.
But wow it was a solid board!
Things moved rapidly back then.