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HP Xeon DP Quad-core L5410 2.33GHz - Processor Upgrade - 2.33GHz - 1333MHz FSB
 
HP Opteron Quad-core 8356 2.30GHz - Processor Upgrade - 2.3GHz - 1000MHz HT
 
HP Intel Xeon MP Quad-core E7320 2.13GHz - Processor Upgrade
 
HP Intel Xeon DP Quad-core E5310 1.60GHz - Processor Upgrade - 1066MHz FSB - 8MB L2 - 771-pin LGA Socket J
 
HP Intel Xeon MP 7110M 2.60GHz - Processor Upgrade - 2MB L2 - 4MB L3 - 604-pin Socket 604
 
HP Intel Xeon DP Quad-core E5450 3.0GHz - Processor Upgrade - 1333MHz FSB - 12MB L2 - 771-pin LGA Socket J
 
HP Intel Xeon DP Quad-core E5440 2.83GHz - Processor Upgrade - 1333MHz FSB - 12MB L2 - 771-pin LGA Socket J
 
HP Intel Xeon DP Quad-core E5440 2.83GHz - Processor Upgrade - 1333MHz FSB - 12MB L2 - 771-pin LGA Socket J
 
HP Intel Xeon DP Quad-core E5405 2.0GHz Processor - 1333MHz FSB - 12MB L2 - 771-pin LGA Socket J
 
HP AMD Opteron Dual-Core 280 2.4GHz - Processor Upgrade