IntelÃÆ'ƒâ€šÃÆ'‚® XeonÃÆ'ƒâ€šÃÆ'‚® E5640, 4 core, 2.66GHz Processor SLBVC (B-Grade) - Central Valley Computer Parts
Lots of 2 pcs Intel Xeon E5640 2.66 GHz Quad-Core 2933 MHz LGA 1366 Socket CPU 735858214162 | eBay
Intel Xeon E5640 SLBVC 2.66 GHz 5.86 GT/s 12 MB LGA1366 B Grade CPU | eBay