dell poweredge r750xs serverintel xeon silver 4309y 28g 8c16t 104gts 12m cache turbo ht 105w16gb rdimm 3200mts dual rank idrac9 express 15g 12tb hard drive sas ise 12gbps 10k 512n 25indual hot plug redundant power supply 11 600w3y intel xeon 415 372