More evidence of Nehalem's awesome overclocking potential has come to light whereby a 2.93GHz ES was easily pushed quite comfortably over the 4GHz barrier, with room to spare.

This was accomplished on generic air cooling and to ensure stability, the voltage was increased to 1.576v.

A screenshot of this feat was published over at Fudzilla which you can barely make out. But what's been said of it is that a SuperPI 1M run was executed whereby the 4.11GHz Nehalem processor ploughed through it in under 10 seconds; 9.969 to be exact.