Approaching the release of E Sandy Bridge processors in mid-November, Intel has deployed some examples of Sandy Bridge E processors are on the vendor / partner to facilitate their designing and try their components intended to support the new processor. OCWorkbench site has even managed to do a mild overclock on one sample Sandy Bridge E (the series is still a secret, but the odds are Quad Core version) with the standard cooler and able to run stable at 4.92 GHz clock.
On that clock iddle temperature is 45° C. As you know, Sandy Bridge E will be more effective to overclock by increasing the BCLK, and this OCWorkbench overclock by increasing the BCLK to 120MHz and 41x multiplier. But to achieve this high clock processors require a voltage at 1.51V, which is high enough, Sandy Bridge K to run this clock only requires 1.4V voltage. The memory used is DDR3 2400 MHz with 10 latency . One thing is for sure, Sandy Bridge E processor can run at higher clock if using a powerful cooling system, such as the Water Cooler of Intel processors designed for this.