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QB Series
High Efficiency
Computing Clusters

Efficience by design
• Higher density
• Optimized energy efficiency
• Limited carbon footprint

Qarnot's QB Series is a computer module optimized for both high performance computing and energy efficiency:

• Designed with the most efficient form factor
• Each module integrates 12 to 24 processors whose intensive computing heats water
• Valorizes up to 96% of computer waste heat by producing hot water
• Modular approach allows for the addition or removal of computing power without disruption of service
• Quiet operation with no moving parts

The QB Series dramatically increases the energy efficiency of both traditional high-density data centers and edge infrastructures.

High density

• AMD Ryzen and OCP Leopard/Tioga Pass/Capri architectures
• Based on optimized cold plates, each module can deliver up to 4 kW of fully water-cooled IT
• PSU fully water-cooled, enabling 6kW/m² density

Cost-effective

The global bill per core can be drastically reduced with a technically and energetically sustainable architecture:

• avoiding most of the data centers’ CapEx (construction, cooling infrastructure, redundancy, ...)
• and OpEx (UPS, cooling, ...)
• With a simplified cluster module approach, operation and maintenance is also highly optimized

Carbon footprint

ESG impact becomes central for every corporation and IT CapEx & OpEx take a growing role in the industry’s carbon footprint. On most items involved in sustainable goals accounting, Qarnot QB brings efficient and uncompromising solutions:

• Direct high water flow cooling towards PUE = 1.0
• Industrial design optimized Energy Reuse Factor up to 96%
• Designed to be deployed in “standard” buildings avoiding data center construction
• Open Compute (OCP) architecture allows hardware reuse and sustainable decommissioning
• Automated control of hardware power and frequency to fit energetical and thermal constraints

Fire protection and safety

• Insulated and hermetic design with limited air volume inside
• Absence of moving parts that could be the cause of a fire
• Pipe junctions located in non-sensitive volumes

QB1 QBx Intel QBx AMD
DIMENSIONS / WEIGHT 35 x 105 x 95cm
From 130 to 200kg
34 x 140 x 114cm
250kg
34 x 140 x 114cm
250kg
MAXIMUM POWER LOAD From 2.5 to 4kW From 2.5 to 4 kW From 2.5 to 4 kW
SERVERS / FORMAT 24 MiniITX 12 OCP ⅓ Open Rack
PROCESSORS 24 x AMD Ryzen 3700X
(8 cores @ 3.6 Ghz)
12x dual Intel Xeon 12x AMD EPYC
MEMORY 24x 32GB DDR4 12x 128GB up to 12x 1024GB DDR4 ECC
NETWORK 24x 1GbE + Switch 12x dual 25GbE SFP28
HARD DISK 24x 120GB SSD 12x 120GB up to 4TB SSD
OPERATING SYSTEM Linux or Windows
HEAT PRODUCTION more than 35 MWh per year
WATER FLOW Up to 500l/h
∅ 10/12 mm
Up to 1,000l/h
∅ 20/22 mm