The Dell PowerEdge XE8640 is a 4U, air-cooled GPU server built around four NVIDIA H100 SXM5 GPUs connected by NVLink. It is the box most buyers mean when they search for a four-GPU Dell training node: dense enough for LLM fine-tuning and HPC, standard enough to drop into an existing rack without liquid cooling.
Buying: IO South stocks and sources the PowerEdge XE8640 new and refurbished, configured to your spec, with a warranty on refurbished units. Selling: we also buy PowerEdge XE8640 systems and the GPUs inside them from businesses upgrading or decommissioning. Request a quote below, or get an offer on the one you have.
| Form factor | 4U rack, air-cooled |
|---|---|
| Processors | Two 4th Gen Intel Xeon Scalable (up to 56 cores each) |
| GPUs | Four NVIDIA H100 SXM5 80GB with NVLink and NVSwitch (HGX H100 4-GPU) |
| Memory | Up to 32 DDR5 DIMM slots |
| Storage | Up to eight 2.5-inch NVMe, SAS or SATA drives |
| Expansion | PCIe Gen5 slots for NICs, DPUs and storage controllers |
| Power | Redundant hot-plug power supplies sized for a full GPU load |
| Management | iDRAC9 with Datacenter license options |
Configurations vary by CPU SKU, memory, drives and GPU count. Where a price is shown on this page it is a base configuration. Send us the exact build you need and we quote it the same business day.
It depends on the configuration: CPU SKUs, memory, drives and whether the four H100s are included. Send us the config you need, or the one you have, and we quote it the same business day. Refurbished units run well below Dell list.
No. The XE8640 is air-cooled by design, which is why it is popular for teams that want H100 SXM performance without plumbing a data hall.
Yes. IO South buys XE8640 systems, with or without GPUs, from businesses upgrading or decommissioning. Use the sell form and we come back with an offer.
The XE8640 holds four H100 SXM GPUs in 4U and is air-cooled. The XE9680 holds eight and needs more power and cooling. Four GPUs is the sweet spot for a lot of fine-tuning and inference work.
* Manufacturer’s Suggested Retail Price
Two 4th Generation Intel Xeon Scalable processors with up to 56 cores per processor
Two 5th Generation Intel Xeon Scalable processors with up to 64 cores per processor
32 DDR5 DIMM slots, supports RDIMM 4 TB max, speeds up to 5600 MT/s
Supports registered ECC DDR5 DIMMs only
4 NVIDIA HGX H100 80GB 700W SXM5 GPUs, fully interconnected with NVIDIA NVLink technology
Internal controller: PERC H965i
Internal boot: Boot Optimized Storage Subsystem (NVMe BOSS-N1): HWRAID 1, 2 x M.2 SSDs
Software RAID: S160
Front Bays
Up to 8 x 2.5-inch SATA/SAS/NVMe SSD max 122.88 TB
Up to 8 x E3.S NVMe SSD max 122.88 TB
2800W Titanium 200-240 VAC or 240 VDC, redundant, hot swap
3200W Titanium 277 VAC or 260-400 VDC redundant, hot swap
Air cooling for Processors
Liquid Assisted Air Cooling for GPU
Note: No facility water to rack required
Intel® C741 chipset
2 CPU configuration: Up to 4 PCIe slots (4 x16 Gen5)
2 x 1 GbE
1 x OCP 3.0 (x8 PCIe lanes)
Up to 6 Standard (STD) fans installed in mid tray
Up to 5 High performance (HPR) gold grade fans installed on the front of the system
All are hot swap fans
Height — 174.3 mm (6.86 inches)
Width — 481.91 mm (18.97 inches)
Depth — 901.4 mm (35.48 inches) with bezel
— 865.54 mm (34.07 inches) inch without bezel
Weight — 61.4 kg (135.36 pounds)
4U rack server
iDRAC9
iDRAC Direct
iDRAC RESTful API with Redfish
iDRAC Service Module
Optional LCD bezel or security bezel
CloudIQ for PowerEdge plug in
OpenManage Enterprise
OpenManage Enterprise Integration for VMware vCenter
OpenManage Integration for Microsoft System Center
OpenManage Integration with Windows Admin Center
OpenManage Power Manager plugin
OpenManage Service plugin
OpenManage Update Manager plugin
BMC Truesight
Microsoft System Center
OpenManage Integration with ServiceNow
Red Hat Ansible Modules
Terraform Providers
VMware vCenter and vRealize Operations Manager
Cryptographically signed firmware
Data at Rest Encryption (SEDs with local or external
key mgmt)
Secure Boot
Secured Component Verification (Hardware integrity check)
Secure Erase
Silicon Root of Trust
System Lockdown (requires iDRAC9 Enterprise or
Datacenter)
TPM 2.0 FIPS, CC-TCG certified, TPM 2.0 China NationZ
Front ports
1 x iDRAC Direct (Micro-AB USB) port
1 x USB 2.0
1 x VGA
Rear ports
1 x USB 2.0
1 x USB 3.0
1 x VGA
1 x RJ45 iDRAC9 ethernet port
Canonical Ubuntu Server LTS
Red Hat Enterprise Linux
For specifications and interoperability details, see Dell.com/OSsupport.
From bezel to BIOS to packaging, your servers can look and feel as if they were designed and built by you. For more information,
visit Dell.com > Solutions > OEM Solutions.
