Dell PowerEdge R720 Owner's Manual - Page 136
PowerEdge Express Flash devices PCIe SSDs in hard-drive - poweredge r720xd manual
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Memory UDIMMs Minimum RAM Maximum RAM LRDIMMs RDIMMs UDIMMs Drives Hard drives (PowerEdge R720) Four-hard-drive systems Eight-hard-drive systems Sixteen or eight plus eight-hard-drive systems Twelve-hard-drive systems Hard drives (PowerEdge R720xd) Twelve plus two-hard-drive systems Twenty-four plus two-hard-drive systems 16 GB single- or dual-ranked 2 GB or 4 GB 2 GB with a single processor 4 GB with two processors Up to 768 GB (PowerEdge R720xd with 2.5 inch hard-drive configuration) Up to 512 GB Up to 64 GB Up to four 3.5 inch, internal, hot-swappable SATA hard drives in hard-drive slots 0 through 3 (hard-drive slots 4 through 7 do not support any hard drives and are installed with a hard-drive blank). NOTE: Four-hard-drive systems support software RAID. For more information on software RAID, see the Dell PowerEdge RAID Controller (PERC) documentation at support.dell.com/manuals. Up to eight 3.5 inch or 2.5 inch, internal, hot-swappable SAS, SATA, or Nearline SAS hard drives in hard-drive slots 0 through 7. Up to sixteen 2.5 inch, internal, hot-swappable SAS, SATA, SATA SSD, or Nearline SAS hard drives in hard-drive slots 0 through 15 or 0 through 7 and 0 through 7. Up to eight 2.5 inch, internal, hot-swappable SAS, SATA, SATA SSD, or Nearline SAS hard drives in hard-drive slots 0 through 7 (hard-drive bay 1) and up to four 2.5 inch Dell PowerEdge Express Flash devices (PCIe SSDs) in hard-drive slots 0 through 3 (hard-drive bay 2). Up to twelve 3.5 inch, internal, hot-swappable SAS, SATA, SATA SSD, or Nearline SAS drives, and two optional 2.5 inch back-accessible SAS, Nearline SAS, or SSD hard drives in hard-drive slots 0 through 11 and 12 through 13. Up to twenty-four 2.5 inch, internal, hot-swappable SAS, SATA, SATA SSD, or Nearline SAS drives in hard-drive slots 0 through 23 and two optional 2.5 inch back-accessible SAS, 136