Dell PowerEdge XE9785L
A liquid-cooled 3 OU AI accelerator sled for Dell's IR7044/IR7050 Open Rack (ORv3) infrastructure, pairing two AMD EPYC 9005 "Turin" processors with up to eight SXM/OAM-class GPUs (NVIDIA HGX B300, NVIDIA HGX B200, or AMD Instinct MI355X) for large-scale AI training, fine-tuning, and inferencing.
Memory
- Slots
- 24 × DDR5 DIMM (RDIMM only, ECC)
- Max
- 3 TB (24 × 128 GB); 256 GB RDIMMs planned for a future release (up to ~6 TB)
- Speed
- Up to 6400 MT/s, 1 DIMM per channel
- Voltage
- 1.1 V
Storage
- E1.S NVMe (direct)
- RI / MU / Enterprise / DC RI, Gen5, 3.84 TB or 7.68 TB
- U.2 NVMe SSD
- RI Gen4 3.84/7.68/15.36 TB; MU Gen4 6.4 TB
- Configuration C01
- 16 total NVMe bays (4 × E1.S per front zone), no PERC
- Configuration C02
- 16 total NVMe bays (4 × E1.S per front zone × 4 zones), no PERC
- Configuration C03
- 8 total NVMe bays (4 × 2.5" NVMe per zone × 2 zones), no PERC
- Boot
- Embedded BOSS: hardware RAID 0/1 across 2 × M.2 NVMe SSDs, dedicated heat sinks
- RAID/PERC
- None — no dedicated PERC or software RAID on this platform
Graphics
- Options
- 8 × NVIDIA HGX B300 NVL8 270 GB 1100 W SXM6 (NVLink); 8 × NVIDIA HGX B200 180 GB 1000 W SXM6 (NVLink); 8 × AMD Instinct MI355X 288 GB 1400 W OAM (AMD Infinity Fabric)
- Cooling
- Direct liquid cooling (DLC) modules on the GPU tray; not air-cooled at the GPU level
Expansion
- PCIe slots
- Up to 12 × Gen5 x16, full-height, half-length (no expansion riser — cards install directly)
- OCP
- 1 × OCP NIC 3.0 (slot 13), Gen5 x16, shared LOM / iDRAC port redirect with aux power
Networking
- Front I/O
- 2 × 1 GbE RJ45, dedicated iDRAC Ethernet (failover on the 16×E1.S front-I/O variant)
- OCP NIC 3.0 options
- 2 × 10 GbE, 4 × 10 GbE, 2 × 25 GbE, 4 × 25 GbE, or 2 × 100 GbE (Broadcom, Intel, or NVIDIA cards; some speeds planned for a future release)
- PCIe fabric NICs
- Up to 12 × Gen5 x16 slots support 400 Gb NICs (AMD, NVIDIA ConnectX-7/OSFP, Broadcom) and OSFP modules for embedded CX-8
Power
- Power shelf
- 21-inch ORv3 power shelf, +50 V output, up to 6 × 5500 W AC Titanium PSUs (33 kW total), hot-swap, N+1
- Input
- 180–350 VAC / 26 A, 47–63 Hz, 80 PLUS Titanium
- Monitoring
- PMBus (PSU) and MODBUS (PDB/PMC), 1% power-monitoring accuracy
Ports
- Front
- 1 × USB 3.0 Type-A, 1 × USB 2.0 Type-C (iDRAC Direct), 1 × Mini-DisplayPort, 2 × RJ45 dedicated iDRAC Ethernet
- Internal
- 1 × USB 3.0, 1 × internal USB 2.0
- Rear
- None (all host I/O is on the front I/O board)
Display
- Controller
- Matrox G200, 16 MB video frame buffer
- Max resolution
- 1920 × 1200 @ 60 Hz
Physical
- Sled dimensions (H × W × D)
- 140.5 mm × 537 mm × 1047.95 mm with fan (889.65 mm without fan)
- Weight
- 94.6–95.4 kg (208.6–210.3 lb) depending on GPU/drive configuration
- Chassis
- 3 OU (1 OU = 48 mm) sled that installs in the IR7044 (44 OU) or IR7050 (50 OU) Open Rack
- Handling
- Server lift required for loads over 120 lb; 2–3 person lift below that
- Acoustics
- Category 6 (typical MI355X configuration)
- Operating temperature
- 10°C–35°C (50°F–95°F) ambient, ASHRAE A2; max operating altitude 3050 m
Management
- Embedded
- iDRAC10 (Datacenter license bundled), iDRAC Direct, RACADM CLI, iDRAC RESTful API with Redfish, iDRAC Service Module
- Consoles
- OpenManage Enterprise, OME Power Manager, OME Update Manager, OME APEX AIOps Observability, CloudIQ for PowerEdge
- Integrations
- Red Hat Ansible Modules, Terraform Providers, BMC TrueSight, OpenManage Integration with ServiceNow
- Security
- Secure Enterprise Key Management (SEKM), Secure Component Verification (SCV), telemetry streaming, System Lockdown
Operating systems
- Supported
- Canonical Ubuntu Server LTS
- Planned
- Red Hat Enterprise Linux (listed by Dell as expected in a future release)
Processors
- AMD EPYC 9965
- AMD EPYC 9755
- AMD EPYC 9845
- AMD EPYC 9825
- AMD EPYC 9655
- AMD EPYC 9575F
- AMD EPYC 9475F
- AMD EPYC 9455