I just picked up the Shuttle AN35N mobo and 2600+ Retail barton combo for ~$150. Took the unlocked OEM 2600+ (0317) out, popped this puppy in (0344), and even though the multiplier was set to 12, it booted at 11.5. So I upped the fsb to 200 (PC2700, so 4:5 ratio), and instant 3200+ (11.5x200). This is in a Epox 8RDA+, not the shuttle board, and at stock voltages all round.