After testing for about one day I found out that my E2140 had an fsb wall around 400mhz. I think the max overclock I can get is around 2.8Gz FSB360 with stock voltage. Anything over that requires extra voltage. Currently I'm testing at FSB 280 at 3.0Ghz. Vcore is 1.40. Do you guys think it's worth getting extra 200mhz at 1.4V? My temps are below 65C for CPU and below 60 for the two cores at 1.4V. I guess I had a bad chip since most can get around 3Ghz at stock volts.