Dell EMC PowerEdge R7425 - Storage Controller Specifications; Drive Specifications; Drives

Table 19. Memory specica
tions
DIMM type DIMM rank
DIMM
capacity
Single processor Dual processors
Minimum RAM Maximum RAM Minimum RAM Maximum RAM
LRDIMM Octal rank 128 GB* 128 GB 2 TB 256 GB 4 TB
LRDIMM Quad rank 64 GB 64 GB 1 TB 128 GB 2 TB
RDIMM Single rank 8 GB 8 GB 128 GB 16 GB 256 GB
RDIMM Dual rank 16 GB 16 GB 256 GB 32 GB 512 GB
RDIMM Dual rank 32 GB 32 GB 512 GB 64 GB 1024 GB
* - Maximum DIMM capacity of 128 GB will be available at a later time.
NOTE
: For optimal performance, it is recommended to populate one DIMM per channel with DDR4, 2666 MT/s memory modules
on the rst slot of each memory channel. The rst slot of each channel can be identied as the DIMM slots with white latches.
For example, 64 GB system memory capacity can be divided into 8 x 8 GB DIMM slots.
Storage controller specica
tions
The PowerEdge R7425 system supports:
• Internal storage controller cards: PowerEdge RAID Controller (PERC) H330+, PERC H730+, PERC H740P, HBA330, and Boot
Op
timized Server Storage (BOSS-S1).
• External storage controller cards: PERC H840 and 12Gbps SAS HBA.
Drive specica
tions
Drives
The PowerEdge R7425 system supports SAS, SATA, Nearline SAS hard drives/SSDs, or NVMe drives.
Table 20. Supported drive options for the PowerEdge R7425 system
8 drives system
• Up to eight 3.5 inch or 2.5 inch (SAS, SATA or Nearline SAS) front accessible drives in
slots 0 through 7
12 drives system
• Up to 12 3.5 inch (SAS, SATA or Nearline SAS) front accessible drives in slots 0 to 11
18 drives system
• Up to 12 3.5 inch (SAS, SATA or Nearline SAS) front accessible drives in slots 0 to 11
• up to four 3.5 inch (SAS, SATA or Nearline SAS) mid drives in slots 14 to 17
• up to two 3.5 inch (SAS, SATA or Nearline SAS) rear accessible drives in slots 12 to 13
24 drives system
• Up to 24 2.5 inch (SAS, SATA or Nearline SAS) front accessible drives in slots 0 to 23
24 drives system
• Up to 24 2.5 inch NVMe front accessible drives in slots 0 to 23
32 drives system
• Up to 24 2.5 inch (SAS, SATA or Nearline SAS) front accessible drives in slots 0 to 23
• up to four 3.5 inch (SAS, SATA or Nearline SAS) mid drives in slots 28 to 31
30 Technical specications