Just got another Barton 2500+ its a 0321. I finally figured out my problem with my Soltek Nforce2 Board, after going through two boards, 3 cpus, 4 CPU coolers(and a southbridge cooler). It was the 2700 Samsung RAM, it was defective. It operates at 133Mhz without any problems, but at 166Mhz its a goner.
Anyways, just an update. I am still waiting for my new motherboard for my 0323, but in the meantime. I plugged in my 0321, and its running at 2800+ without a sweat. When I set the multiplier to 13, it didn't boot up at 3000+, are the new Barton's locked? Maybe it just needs more vCore. I'll have to play around with it after my midterm.