HP ProLiant DL165 G6 2423HE 2.0GHz Six Core Non-hot Plug SATA Rack Server. Processor model: AMD Opteron Model 2423 HE (6 cores, 2.0 GHz, 6MB L3, 55W), L2 cache: 6 MB. Number of hard drives supported: SATA; non-hot plug included. Internal memory: 4 GB, Internal memory type: DDR2, Maximum internal memory: 64 GB. Optical drive type: None ship standard. Power supply type: (1) 500 Watt Auto-switching, high efficiency, PFC