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Dell PowerEdge R640

Dell's 14th-generation two-socket 1U rack server for dense scale-out computing: 1st/2nd Gen Xeon Scalable, 24 DIMMs, up to 10 front 2.5-inch drives (all-NVMe option) plus 2 rear bays, and up to three PCIe slots. Suited to virtualization, private cloud, HPC and software-defined storage nodes.

Memory

Slots
24 DDR4 DIMM (12 per CPU, 6 channels × 2 DIMMs); registered ECC only
RDIMM
8 GB 1R (2666), 16/32/64 GB 2R (2933 with 2nd Gen CPUs); 1st Gen CPUs: 8/16/32 GB at 2666
LRDIMM
64 GB 4R (1st Gen) and 128 GB 8R, 2666 MT/s
Max
RDIMM 1.53 TB; LRDIMM 3 TB (24 × 128 GB); 1.5 TB with one CPU
NVDIMM-N
16 GB, up to 12 (192 GB); needs 2 CPUs and at least 12 RDIMMs
Optane PMem
128/256/512 GB, up to 6 per CPU (12 total), 2666 MT/s; 6.14 TB PMem, 7.68 TB with PMem + LRDIMM; 2nd Gen CPUs only
Speed
Up to 2933 MT/s at 1 DIMM per channel, 2666 MT/s at 2 DIMMs per channel (CPU-dependent)

Storage

Front bays
10 × 2.5" SAS/SATA/NVMe (up to 8 NVMe), 10 × 2.5" NVMe, 8 × 2.5" SAS/SATA or 4 × 3.5" SAS/SATA, hot-plug; 76.8 TB (2.5"), 64 TB (10 × NVMe) or 64 TB (3.5") max
Rear bays
Optional 2 × 2.5" SAS/SATA/NVMe (max 15.36 TB) with the 10 × 2.5" or 4 × 3.5" chassis; leaves one PCIe slot
NVMe
Up to 10 CPU-direct-attach NVMe (U.2) drives, e.g. PM1735a/PM1733a, Kioxia CD7
Internal RAID/HBA
PERC H330, H350, H730P, H740P, H750 (adapter), HBA330, HBA350i (adapter), S140 software RAID (SATA)
External
PERC H840, HBA355e (adapter), 12 Gb/s SAS HBA
Boot
BOSS: 2 × M.2 SATA SSD (240/480 GB), non-RAID or RAID 1; IDSDM (2 × microSD 16/32/64 GB) and/or vFlash (16 GB microSD)
Optical
Optional slim SATA DVD-ROM or DVD+/-RW (4 × 3.5" and 8 × 2.5" chassis)

Graphics

Onboard
Matrox G200eW3 (integrated), 16 MB, up to 1920 × 1200
Accelerators
Up to 3 single-width GPUs (NVIDIA T4) or 1 FPGA
GPU slots
Riser 1A+2A: slots 1, 3, 2 (low profile); riser 1B+2B: slot 2 (full height). 3 × T4 only in the 8 × 2.5" chassis; 10 × 2.5" chassis takes 2 GPUs (slots 1 and 3)

Expansion

Riser 1A
Slot 1 and slot 2: PCIe 3.0 x16, low profile, half length (CPU1)
Riser 1B
Slot 1: PCIe 3.0 x16, low profile, half length (CPU1)
Riser 2A
Slot 3: PCIe 3.0 x16, low profile, half length (CPU2)
Riser 2B
Slot 2: PCIe 3.0 x16, full height, 3/4 length (CPU2)
Configs
1A+2A (3 low-profile slots), 1B+2B (1 low-profile + 1 full-height), 1A or 1B alone; 1 slot with rear drives
Dedicated
x8 PCIe 3.0 slot for the mini-PERC and x8 for the rNDC (both CPU1); IDSDM/vFlash slot (PCIe x1, USB 3.0 to host)

Networking

rNDC
4 × 1GbE, 4 × 10GbE RJ45, 2 × 10GbE + 2 × 1GbE RJ45, 2 × 10GbE SFP+ + 2 × 1GbE, 4 × 10GbE SFP+, or 2 × 25GbE SFP28
Add-in
Up to 3 PCIe NIC cards

Power

Platinum AC
495 W, 750 W, 1100 W, 1600 W
Titanium AC
750 W and 1600 W (200–240 V only)
DC / mixed mode
1100 W −48 to −60 VDC; 750 W mixed-mode AC Platinum; 750 W mixed-mode HVDC / 240 VDC (China only); 1100 W mixed-mode 200–380 VDC (China and Japan only)
Redundancy
Two hot-plug PSUs, 1+1; up to 8 hot-plug fans (standard or high-performance, not mixed)
Low line
At 100–120 V the 1100 W PSU is derated to 1050 W and the 1600 W to 800 W

Ports

Front
VGA, 1 × USB 2.0, iDRAC Direct micro-USB; optional USB 3.0 on 4 × 3.5" and 8 × 2.5" chassis
Rear
VGA, serial, 2 × USB 3.0, iDRAC9 dedicated network port, system status indicator cable port, system ID button
Internal
1 × USB 3.0

Physical

Form factor
1U rack
Dimensions
42.8 mm H × 434.0 mm W (482.0 mm incl. rack ears) × 794.67 mm D for 4 × 3.5"/10 × 2.5" or 743.91 mm D for 8 × 2.5" (without bezel; 808.5 mm with bezel)
Weight
21.9 kg maximum
Operating temp
10–35 °C standard; 5–40 °C for ≤10% and −5–45 °C for ≤1% of annual hours (expanded, with restrictions)
Rails
ReadyRails II sliding (B6, optional CMA) or ReadyRails static (B4, 2-post and 4-post)

Management

BMC
iDRAC9 with Lifecycle Controller, Redfish, IPMI 2.0, iDRAC Direct (micro-USB), optional Quick Sync 2 wireless; 8/16 GB vFlash upgrade
Software
OpenManage Enterprise, OpenManage Mobile, OpenManage Power Center; integrations for System Center, vCenter, BMC Truesight, Ansible
Security
TPM 1.2/2.0, optional TCM 2.0, cryptographically signed firmware, Secure Boot, Silicon Root of Trust, System Lockdown (Enterprise/Datacenter licence), System Erase
Bezel
Optional LCD bezel or security bezel

Operating systems

Supported
Canonical Ubuntu Server LTS, Citrix Hypervisor/XenServer, Microsoft Windows Server LTSC with Hyper-V, Oracle Linux, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, VMware ESXi

Processors

  • Intel Xeon Platinum 8280
  • Intel Xeon Platinum 8280L
  • Intel Xeon Platinum 8280M
  • Intel Xeon Platinum 8276
  • Intel Xeon Platinum 8276L
  • Intel Xeon Platinum 8276M
  • Intel Xeon Platinum 8270
  • Intel Xeon Platinum 8268
  • Intel Xeon Platinum 8260
  • Intel Xeon Platinum 8260L
  • Intel Xeon Platinum 8260M
  • Intel Xeon Platinum 8260Y
  • Intel Xeon Platinum 8256
  • Intel Xeon Platinum 8253
  • Intel Xeon Gold 6262V
  • Intel Xeon Gold 6258R
  • Intel Xeon Gold 6254
  • Intel Xeon Gold 6252
  • Intel Xeon Gold 6248
  • Intel Xeon Gold 6248R
  • Intel Xeon Gold 6246
  • Intel Xeon Gold 6246R
  • Intel Xeon Gold 6244
  • Intel Xeon Gold 6242
  • Intel Xeon Gold 6242R
  • Intel Xeon Gold 6240
  • Intel Xeon Gold 6240R
  • Intel Xeon Gold 6240Y
  • Intel Xeon Gold 6238R
  • Intel Xeon Gold 6238T
  • Intel Xeon Gold 6230
  • Intel Xeon Gold 6230R
  • Intel Xeon Gold 6226
  • Intel Xeon Gold 6226R
  • Intel Xeon Gold 6222V
  • Intel Xeon Gold 6212U
  • Intel Xeon Gold 6210U
  • Intel Xeon Gold 6209U
  • Intel Xeon Gold 6208U
  • Intel Xeon Gold 5222
  • Intel Xeon Gold 5220
  • Intel Xeon Gold 5220R
  • Intel Xeon Gold 5220S
  • Intel Xeon Gold 5218
  • Intel Xeon Gold 5218N
  • Intel Xeon Gold 5218R
  • Intel Xeon Gold 5217
  • Intel Xeon Gold 5215
  • Intel Xeon Gold 5215L
  • Intel Xeon Gold 5215M
  • Intel Xeon Silver 4216
  • Intel Xeon Silver 4215
  • Intel Xeon Silver 4215R
  • Intel Xeon Silver 4214
  • Intel Xeon Silver 4214R
  • Intel Xeon Silver 4214Y
  • Intel Xeon Silver 4210
  • Intel Xeon Silver 4210R
  • Intel Xeon Silver 4209T
  • Intel Xeon Silver 4208
  • Intel Xeon Bronze 3206R
  • Intel Xeon Bronze 3204
  • Intel Xeon Platinum 8180
  • Intel Xeon Platinum 8180M
  • Intel Xeon Platinum 8176
  • Intel Xeon Platinum 8176M
  • Intel Xeon Platinum 8170
  • Intel Xeon Platinum 8170M
  • Intel Xeon Platinum 8168
  • Intel Xeon Platinum 8164
  • Intel Xeon Platinum 8160
  • Intel Xeon Platinum 8160M
  • Intel Xeon Platinum 8158
  • Intel Xeon Platinum 8156
  • Intel Xeon Platinum 8153
  • Intel Xeon Gold 6154
  • Intel Xeon Gold 6152
  • Intel Xeon Gold 6150
  • Intel Xeon Gold 6148
  • Intel Xeon Gold 6146
  • Intel Xeon Gold 6144
  • Intel Xeon Gold 6142
  • Intel Xeon Gold 6140
  • Intel Xeon Gold 6138
  • Intel Xeon Gold 6136
  • Intel Xeon Gold 6134
  • Intel Xeon Gold 6132
  • Intel Xeon Gold 6130
  • Intel Xeon Gold 6128
  • Intel Xeon Gold 6126
  • Intel Xeon Gold 5122
  • Intel Xeon Gold 5120
  • Intel Xeon Gold 5118
  • Intel Xeon Gold 5117
  • Intel Xeon Gold 5115
  • Intel Xeon Silver 4116
  • Intel Xeon Silver 4114
  • Intel Xeon Silver 4112
  • Intel Xeon Silver 4110
  • Intel Xeon Silver 4108
  • Intel Xeon Bronze 3106
  • Intel Xeon Bronze 3104