Technical Guide

System features
Topics:
• Product comparison
Product comparison
Table 1. Product comparison
Features PowerEdge T550 PowerEdge T640
Processors Up to two 3
rd
Generation Intel Xeon Scalable
processors with up to 32 cores per processor
Up to two 2
nd
Generation Intel Xeon Scalable
processors, up to 28 cores per processor
Memory DIMM speed
● Up to 3200 MT/s
Memory type
● RDIMM
Memory module slots
● 16 DDR4 DIMM slots
● Supports registered ECC DDR4 DIMM slots
only
Maximum RAM
● RDIMM 1 TB
DIMM speed
● Up to 2993 MT/s
Memory type
● RDIMM
● LRDIMM
● NVDIMM
Memory module slots
● 24 DDR4 DIMM slots (12 NVDIMM only)
● Supports registered ECC DDR4 DIMM slots only
Maximum RAM
● RDIMM 3 TB
● LRDIMM 3 TB
● NVDIMM 192 GB
Storage controllers
● Internal controllers: PERC H345, PERC
H355, PERC H755, H755N, HBA355i
● Internal Boot: Internal Dual SD Module
or Boot Optimized Storage Subsystem
(BOSS-S2): HWRAID 2 x M.2 SSDs or USB
● External controller (RAID): PERC H840
● External HBAs (non-RAID): HBA355e
● Software RAID: S150
● Internal controllers: PERC H330, H730P, H740P,
HBA330
● Internal Boot: Boot Optimized Storage Subsystem
(BOSS) - HWRAID 2 x M.2 SSDs 240 GB, 480 GB
● External controller (RAID): H840, 12 Gbps SAS
HBA
● Software RAID: S140
Drive bays Front bays:
● Up to 8 x 2.5-inch SAS/SATA (HDD) max
120 TB
● 16 x 2.5-inch SAS/SATA (HDD) max 240
TB
● 24 x 2.5-inch SAS/SATA (HDD) max 360
TB
● 8 x 3.5-inch SAS/SATA (HDD/SAS) max
120 TB
● 8 x 3.5-inch SAS/SATA (HDD) + 8 x 2.5-
inch NVMe (SSD) max 240 TB
Front bays:
● Up to 8 or 18 x 3.5-inch SAS/SATA (HDD/SSD),
max 216 TB
● Up to 16 x 2.5-inch SAS/SATA (HDD/SSD), max
61 TB
● Up to 32 x 2.5-inch SAS/SATA (HDD/SDD), max
122 TB
● Up to 16 x 2.5-inch with up to 8 NVMe,
SAS/SSD/NVMe (HDD/SDD), max 112 TB
Power supplies
● 600 W Platinum AC/100 - 240 V
● 600 W DC/240 V
● 800 W Platinum AC/100 - 240 V
● 800 W DC/240 V
● 495 W Platinum
● 750 W 240 HVDC Platinum
● 750 W Titanium
● 1100 W 380 HVDC Platinum
2
6 System features