The code is lbble 0519bpew. it's a retail processor. 2.9G bootable to winxp, but not stable. 2.8 stable on air. this cpu has potential for higher speed if you use watercooling or phase 🙂. the reason i'm selling is i'm thinking of getting dual core. the reason for the price is i checked newegg and it's listed for 190 for the retail version. i think 170$ is a great price for this cpu. Thanks.