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7U 8-GPU ASRock Rack Barebone | OCG7900-8H12A

OCG7900-8H12A

7U 8-GPU Drawer-Style Server Barebone for ASRock Rack Motherboards

The OCG7900-8H12A is a custom-developed 7U 8-GPU server barebone designed for ASRock Rack GENOA2D24G-2L+ and TURIN2D24G-2L+/500W motherboards. Featuring a modular drawer-style architecture, PCIe Gen5.0 x16 MCIO connectivity, and high-density GPU expansion capability, it is built for AI computing, HPC, and GPU server integration applications.

Key Features

1. Dedicated ASRock Rack Platform Design

Optimized for ASRock Rack GENOA2D24G-2L+ and TURIN2D24G-2L+/500W motherboards with a dedicated slide-out motherboard tray for reliable system integration.

2. Drawer-Style Modular Architecture

Independent slide-out motherboard and GPU trays simplify installation, cable management, and maintenance for high-density GPU systems.

3. PCIe Gen5.0 x16 GPU Connectivity

Supports PCIe Gen5.0 x16 connectivity via MCIO for high-bandwidth GPU communication and next-generation AI computing platforms.

4. Optimized 8-GPU Server Platform

Supports up to 8 GPUs with a recommended front 3-GPU and rear 5-GPU layout, accommodating up to 4-slot GPUs up to 370mm length.

5. High-Power Cooling and Redundant Power Design

Equipped with 12 hot-swap fans and 4+1 CRPS redundant power architecture to support demanding multi-GPU workloads.

Specification

Chassis and Mechanical Design
SpecificationDetails
ModelOCG7900-8H12A
Product Type7U 8-GPU drawer-style server barebone
Rack Form Factor7U, standard 19-inch rackmount
Dimensions438.4* 900* 310mm, W* D* H
MaterialSGCC hot-dip galvanized steel
Service ModulesSlide-out motherboard tray, front GPU tray and rear GPU tray
Motherboard and PCIe Architecture
SpecificationDetails
Supported MotherboardsASRock Rack GENOA2D24G-2L+; ASRock Rack TURIN2D24G-2L+/500W
Motherboard TrayDedicated slide-out motherboard tray
GPU InterfacePCIe Gen5.0 x16 via MCIO*
GPU Support
SpecificationDetails
GPU CapacityUp to 8 GPUs
Recommended GPU Layout3 GPUs in the front drawer + 5 GPUs in the rear drawer
Maximum GPU Length370mm
Maximum GPU Height150mm with the standard top cover
Maximum GPU WidthUp to 4-slot
Raised Top CoverRequired for GPUs higher than 150mm
Cooling System
SpecificationDetails
System Fan Configuration4* 92* 38mm hot-swap fans + 8* 80* 38mm hot-swap fans
92mm Fan ZoneCooling coverage for drives, CPUs and motherboard components
80mm Fan ZoneDedicated cooling coverage for the GPU section
Vibration IsolationModule-level isolation for the 92mm fan module; individual isolation for each 80mm fan
Power and Storage
SpecificationDetails
Power Architecture4+1 CRPS redundant power design
Supported CRPS Options1300W / 1600W / 2000W / 2700W
Drive Bays12* 3.5-inch/2.5-inch hot-swap drive bays
Backplane Option 112* SAS/SATA 12Gb/s direct-attach backplane
Backplane Option 212* SAS/SATA 12Gb/s expander backplane
Backplane Option 38* SAS/SATA 12Gb/s + 4* NVMe direct-attach backplane
Backplane Option 48* SAS/SATA 12Gb/s + 4* NVMe expander backplane
Controls, Rack and Operating Environment
SpecificationDetails
Front ControlsPower on/off button and reset button
Status IndicatorsPower status, drive activity and UID LEDs
Rail Option 1Full-extension ball-bearing rail; maximum load 85kg; adjustable length 686–915mm
Rail Option 2Heavy-duty support rail; tested maximum load 300kg; adjustable length 725–925mm
Rack CompatibilityStandard 19-inch rack; cabinet depth from 1.0m to 1.2m
Operating Temperature10°C to 35°C
Operating Humidity8% to 90%, non-condensing
PackagingProfessional double-layer system packaging; customizable outer carton
* Final PCIe lane allocation and MCIO cable mapping depend on the selected motherboard, CPU platform and system topology.

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