I have 4 friends that all have 1gig Athlons with a 266mhz fsb, and they're all AXIAs. I would bet good money that yours is too, and if it is, you should be able to overclock the crap out of it. I think they all got theirs to either 1.333ghz or 1.4ghz, with just air cooling. You said you have a DDR motherboard, but you didn't say which one. If it has a multiplier setting in the BIOS, and hopefully a VCORE adjustment, you shouldn't have any problems getting it to 1.3ghz+.