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458585-L21 - HP 2.83GHz 1333MHz FSB 12MB L2 Cache Socket LGA771 Intel Xeon E5440 Quad-core (4 Core) Processor Kit for ProLiant DL380 Gen5
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457933-L21 - HP 2.83GHz 1333MHz FSB 12MB L2 Cache Socket LGA771 Intel Xeon E5440 Quad-core (4 Core) Processor for ProLiant Server
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Refurbished: Intel 455424-B21 Xeon DP Quad-core E5440 2.83GHz - Processor Upgrade Switch Modules - Newegg.com
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