I find it really annoying when someone blames the CPU for their problems with their set up... it gives perfectly good firms a bad name and helps the monopolistic ones succeed. For instance, in this case, you blame AMD for your shaky setup when chances are it was the _motherboard_ that was flakey, or you weren't using the latest BIOS or drivers, or something.
Whatever, we have a K6-2/500 in the other room running Windoze XP Pro perfectly happily - it's been running 24/7 for the last 5 years or so. At home I have a K6-2/380 running Win98 - it also runs 24/7 as it's my ADSL gateway. Again, it runs wonderfully (a decent Tyan Trinity Mobo helps).
It is no co-incidence that these machines are running decent motherboards, decent RAM, decent HDs etc.
Either way it is _not_ the CPU that is at fault.
[No, I'm not an AMD fanboy - though I do use an Opteron as my main machine - I just hate to see a good firm done down when it's not their fault, especially when Intel are such a shady company with their tactics.]
That's my final comment... this is an *Amiga* site after all.