Ordered two Xeon L5640 processors for my R610, just to see what kind of power saving I could get. One of them came like this ( first photo). Got an replacement today (
Intel Xeon L5640 2.26GHz Six Core (AT80614005133AB) Processor for sale online | eBay
Intel Xeon L5640 Streaming Benchmarks - CPUAgent
Intel Xeon L5640 60w Dual Six Core Benchmarks and Review
Intel Xeon L5640 60w Dual Six Core Benchmarks and Review