actualy asus max's at 300, the 250 on the webpage is old. I have checked clockgen and it is showing pci and agp at 67 and 33 respectively at fsb of 219. Tried ram at 166, same exact results, and I have pushed this ram over 270, so 220 is not causing problems. Also 219 runs prime perfectly stable (12+ hours before i turned it off) so raising 1 mhz and constant rebooting seems odd. I thought it was the same sata problem as on the msi, but switching to different ports hasnt helped, hopefully someone else with the board or a review will come up with soemthing that i havent thought of. Or in a worse case scenario asus will come up with a bios fix. Runs completely stable at stock and up to 219 so I would say the board works with dtr's, if not perfectly. Only dtr related issue i have seen is it isnt recongizing that it is a cg chip, it is only giving me an option of 1t.