Quick Specs Form Factor: 1U rack server Processor | Max: 64 Cores 2x 4th or 5th Gen Intel Xeon Scalable Memory | Max: 8TB 32 ECC DDR5 RDIMM 4800Mhz/5600MhzSupports registered ECC DDR5 DIMMs only Storage | Max: 204.8TB 8x 2.5" SAS4/SATA/NVMe (HDD/SSD) Max: 122.88 TB 10x 2.5" SAS4/SATA/NVMe (HDD/SSD) Max: 153.6 TB 14x EDSFF E3.S NVMe (G5) Max: 179.2 TB 16x EDSFF E3.S NVMe (G5) Max: 204.8 TB Rear Drives | Max: 30.72TB 2x 2.5" SAS/SATA/NVMe (HDD/SSD)2x 2.5" EDSFF E3.S Gen5 NVMe (SSD) Storage Controller: S160 (SW RAID)H965i, H755, H755N, H355, HBA355i, HBA355e Boot Options: BOSS-N1USB Networking Options (NOC): 1x OCP card 3.0 + 2x 1 GbE LOM with BCM5720 LAN controllerNote: The system allows either LOM card or an OCP card or both to be installed in the system. Remote Management: iDRAC9 with Lifecycle Controller PCIe Slots: 3x PCIe (G4 /G5) slots GPU: Up to 3 x 75 W SW Other Versions: Dell PowerEdge R610 Dell PowerEdge R620 Dell PowerEdge R630 Dell PowerEdge R640 Dell PowerEdge R6415 Dell PowerEdge R650 Dell PowerEdge R650XS Dell PowerEdge R6515 Dell PowerEdge R6525 Dell PowerEdge R660 Dell PowerEdge R660XS Dell PowerEdge R6615 Dell PowerEdge R6625 (Click to View) Ideal For: Data Analytics Virtualization The Dell PowerEdge R660 is a 1U dual-socket rack server engineered for demanding enterprise workloads like dense database analytics and high-density virtualization. Configuration includes 32 DIMM slots, 3 PCIe slots, 1 OCP slot, and 1 LOM, with 3 available chassis options supporting SAS, SATA, and NVMe drives — details on each storage configuration are outlined below. Chassis Options Chassis Supported Configurations No Drive Chassis Zero drives (no backplane) 8SFF 2.5" (NVMe) 2.5" (NVMe RAID) 2.5" (SAS4/SATA) 2.5" Universal 10SFF + Optional Rear 2SFF Drive 2.5" (SAS4/SATA) 2.5" (SAS4/SATA) + 2x2.5" (SAS4/SATA) 2.5" (SAS4/SATA w/ 4 Universal 2.5" (NVMe) 2.5" (NVMe) + 2x2.5" (NVMe) 2.5" (SAS4/SATA w/ 2 Universal NOTE: The Rear drive option is only shown in the 10SFF. Supported Drives Form Factor Type Speed Rotational Speed Capacities 2.5" vSAS 12 Gb SSD 1.92 TB, 3.84 TB, 960 GB, 7.62 TB 2.5" SAS 24 Gb SSD 1.92 TB, 1.6 TB, 800 GB, 3.84 TB, 960 GB, 7.68 TB 2.5" SATA 6 Gb SSD 1.92 TB, 480 GB, 960 GB, 3.84 TB 2.5" NVMe Gen4 SSD 1.6 TB, 3.2 TB, 6.4 TB, 1.92 TB, 3.84 TB, 15.63 TB, 7.68 TB, 800 GB, 400 GB 2.5" DC NVMe Gen4 SSD 3.84 TB, 960 GB 2.5" SAS 12 Gb 10 K 600 GB, 1.2 TB, 2.4 TB Processor | 4th / 5th Generation Intel Xeon Scalable Configurations support up to two 4th or 5th Generation Intel Xeon Scalable processors, offering up to 56 cores each with optional Intel® QuickAssist Technology. The 8470Q and 6458Q models require liquid cooling exclusively, and processor mixing isn't recommended — if one socket uses a liquid-cooled processor, the second must match. Faster UPI with up to four Intel Ultra Path Interconnect (Intel UPI) at up to 16 GT/s, increasing multi socket bandwidth More, faster I/O with PCI Express 5 and up to 80 lanes (per socket) Enhanced Memory Performance with DDR5 support and memory speed up to 4800 MT/s in one DIMM per channel (1DPC) and 4400 MT/s in two DIMM per channel (2DPC) New built-in accelerators for data analytics, networking, storage, crypto, and data compression Cooling Options The Dell PowerEdge R660 supports Liquid Cooling and Air Cooling options. Heatsink & Fans The Dell PowerEdge R660 supports either four sets of Standard cooling fans or four sets of High-Performance Gold cooling fans, with the choice determined by processor TDP. Installing rear drives in the 10SFF chassis requires Gold fans. A processor exceeding 185W TDP requires the Direct Liquid Cooling module to be installed. Refer to the R660 installation manual for further cooling details. Air Shroud Several cooling shrouds apply to specific configurations on this system — a CPU shroud is required for all air-cooled builds, and a PCH shroud is needed when no riser is installed. An air-cooled build with a 2x 2.5" rear-drive configuration requires the rear drive shroud. Installing an A2 GPU requires a blank on the R1P riser to maintain proper airflow. Memory Options 32 DDR5 DIMM slots support up to 8TB of RDIMM capacity, with speeds reaching 4800 MT/s (or 5600 MT/s with 5th Gen CPUs) — registered ECC DDR5 DIMMs only. DIMM type Rank Capacity DIMM rated voltage and speed Operating Speed 1 DIMM per channel (DPC) 2 DIMMs per channel (DPC) RDIMM 1 R 16 GB DDR5 (1.1 V), 4800 MT/s 4800 MT/s 4400 MT/s 2 R 32 GB, 64 GB DDR5 (1.1 V), 4800 MT/s 4800 MT/s 4400 MT/s 4 R 128 GB DDR5 (1.1 V), 4800 MT/s 4800 MT/s 4400 MT/s 8 R 256 GB DDR5 (1.1 V), 4800 MT/s 4800 MT/s 4400 MT/s NOTE: Permanently removing a memory module on a processor with TDP ≥250W requires installing a memory module blank, following a process similar to standard DIMM installation. Networking OCP 3.0 The Dell PowerEdge R660 supports up to two NIC ports via the embedded LOM card and up to four ports through the OCP card, with the option to install either card independently or both together. PCIe Riser Configuration Options A no-riser configuration is available on the PowerEdge R660; in this setup, the PCH air shroud must be installed to maintain correct airflow. Slot 1 1 x16 Gen5 Full height 1 x8 Gen 5 Low profile 1 x16 Gen 5 Low profile 1 x16 Gen 4 Low profile Slot 2 1 x16 Gen5 Full height 1 x16 Gen 5 Low profile 1 x16 Gen 4 Low profile Slot 3 1 x8 Gen 5 Low profile 1 x16 Gen 5 Low profile 1 x16 Gen 4 Low profile PCIe Riser Configuration No. Riser configuration No. of Processors PERC type supported Rear Storage Possible Config 0. No RSR 2 Front PERC No Config 1. 3 x LP (Gen4) R2A+R3A 2 Front PERC / PERC Adapter No Config 2. 3 x LP (2x LP Gen5 + 1x LP Gen4) R2P+R3P 2 Front PERC No Config 3. 2 x 16 FH (Gen5) R1P+R4P 2 Front PERC / PERC Adapter No Config 4. 3 x LP (2x LP Gen5 + 1x LP Gen4) R2R+R3R 1 N/A No Config 5. 3 x LP (2x LP Gen4 + 1x LP SANPI Gen5) R2A+R3Q 2 Front PERC / PERC Adapter No Config 6. 1 R2Q (non A2) 2 Front PERC No Config 6. 2 x LP (Gen5) R2Q (only for A2) 2 Front PERC No Config 7. 1 x16 LP (Gen5) R3P 2 Front PERC No Config 8. 1 x LP (Gen4) R2A 1 Front PERC / PERC Adapter No Config 9. 2 x 16 LP (Gen5) R2S + R3S 2 N/A No GPU The server's 3 rear PCIe slots can each be filled with a single-wide 75W GPU. Installing an A2 GPU calls for a dedicated air shroud, along with an A2 blank on the R1P riser when using a full-height riser configuration — note that only risers labeled with a "P" support GPU installation. Storage Controllers - Front PERC Dell's fPERC solution stands out in the RAID controller lineup by delivering a base RAID hardware controller that doesn't consume a PCIe slot, thanks to its compact form factor and high-density connector to the base planar. The 16G PERC controller lineup builds substantially on the 15G family, carrying forward the Value and Value Performance tiers. New to 16G is the Avenger-based Premium Performance tier, a high-end option designed to boost IOPS and enhance SSD performance. Supported storage controller cards Internal Controllers PERC H965i Premium Performance PERC H755 Value Performance PERC H755N Value Performance PERC H355 Value External Controllers HBA355e Value Internal Boot Boot Optimized Storage Subsystem (BOSS N1): HWRAID 2 x M.2 NVMe SSDs USB Software RAID S160 Entry SAS Host Bus Adapters (HBA) HBA355i Value Boot Options The BOSS-N1 offers 2x hot-swappable M.2 NVMe SSDs with hardware RAID, supporting single-drive RAID 0 or dual-drive RAID 1. The BOSS card isn't supported under all thermal conditions; when it's not installed, a BOSS blank must take its place. Power, Dimensions, & Weight Power Two hot swap with full redundant AC or DC power supply units. 1800W Titanium 200—240 VAC or 240 HVDC 1400W Platinum 100—240 VAC or 240 HVDC 1100W Titanium 100—240 VAC or 240 HVDC 1100W LVDC -48 — -60 VDC 800W Platinum 100—240 VAC or 240 HVDC 700 W Titanium 200—240 VAC or 240 HVDC Dimensions Width 482 mm (18.97") Height 42.8 mm (1.68") Length 822.88 mm (32.39") w/ bezel 809.04 mm (31.85") w/o bezel Weight w/ drives 22.51 kg (49.62 lbs) w/o drives 18.5 kg (40.78 lbs)
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