Gigabyte R183-Z91-AAV1 Rev. 3.x 1U Rack Server Barebone - Dual Socket AMD EPYC

When you're packing a rack with virtualization nodes or HPC clusters, every U counts—and the Gigabyte R183-Z91-AAV1 Rev. 3.x squeezes two AMD EPYC sockets into a 1U chassis without cutting corners on memory or storage. This barebone is built for workloads that demand massive core counts and memory bandwidth: think VDI, in-memory databases, or software-defined storage. You get 32 DDR4 DIMM slots (16 per CPU) supporting up to 8TB of ECC memory, plus 8 hot-swap 2.5-inch drive bays with onboard SATA RAID. Dual 800W Platinum redundant PSUs and six hot-swap fans keep things running reliably, while the dedicated IPMI port lets you manage the box remotely—even at BIOS level. Since it ships without CPU, RAM, or drives, you pick exactly what goes in, tailoring performance to your workload and budget.

Key specifications

• Form factor: 1U rackmount, fits standard 19-inch racks
• CPU sockets: 2 x SP3 (LGA 4094) for AMD EPYC 7001/7002/7003 series, up to 280W TDP each
• Memory: 32 x DDR4 DIMM slots (16 per CPU), supports ECC RDIMM/LRDIMM, up to 8TB max
• Storage: 8 x 2.5-inch hot-swap SATA/SAS drive bays, onboard SATA RAID 0/1/5/10
• Expansion: 2 x PCIe Gen4 x16 low-profile slots
• Networking: 2 x 1GbE LAN (Intel I350-AM2), 1 x dedicated management port (IPMI 2.0, KVM over IP)
• Power: 2 x 800W 80 PLUS Platinum redundant PSUs
• Cooling: 6 x hot-swap system fans
• Front I/O: 2 x USB 3.0, 1 x VGA; Rear I/O: 2 x USB 3.0, 1 x VGA, 2 x RJ45 LAN, 1 x RJ45 management

Why choose it

This barebone puts you in control—choose your CPUs, memory, and storage to match your exact needs. The dual-socket EPYC design delivers high core counts and massive memory bandwidth, while the 1U chassis maximizes rack density. Redundant Platinum power supplies and hot-swap fans reduce downtime risk, and the dedicated management port simplifies remote administration. Gigabyte's server engineering ensures compatibility with a wide range of enterprise components, making this a future-ready platform for evolving data center needs.

Ideal use cases

• Virtualization and private cloud infrastructure
• High-performance computing (HPC) and parallel processing
• Software-defined storage and hyperconverged systems
• In-memory databases and real-time analytics
• Enterprise edge computing and micro data centers

Good to know

The server operates reliably between 5°C and 35°C, making it suitable for standard data center environments. As a barebone unit, it requires compatible AMD EPYC processors, DDR4 ECC memory modules, and 2.5-inch SATA/SAS drives to complete the build. The onboard SATA RAID controller covers basic RAID levels without an additional card. For higher network throughput, the two PCIe Gen4 x16 slots can accommodate 10GbE or faster adapters. The IPMI 2.0 management interface with KVM over IP enables full remote control, including BIOS-level access, reducing the need for on-site intervention.

Tip: When populating memory, fill all channels per CPU for optimal bandwidth—especially if you're running memory-intensive VMs or analytics. And don't forget to verify CPU cooler height clearance for 1U, as not all EPYC coolers fit.