Taken from -> http://www.hardware.fr/news/lire/27-11-2003/#6194 As you can see from the ID Plate, the numbers/letters have been done by hand. Here are the modifications done to the chip. 1. Two L2 bridges modified to change the 64K of L2 into 256k. 2. Two L3 bridges modified to change multiplier from 10.5 to 12.5. 3. One L11 bridge modified to change VCore from 1.5 to 1.6. 4. One L12 bridge modified to change FSB from 133(266) to 166(333). In other words, keep away from bargains on 2600+ TBreds CPUs. Stick to Barton CPUs if possible. BTW, these rebadged CPUs have been spotted in Europe so far.