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Data Centres

Innovation in liquid cooling is revolutionising data centres

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The rapid growth of the data centre liquid cooling sector is driven by high-density servers, AI workloads and efficiency needs, says Aashi Mishra Do you know that global emissions from cloud computing range from 2.5%-3.7% of all global greenhouse emissions? It has been estimated that there are almost 10,970 data centre locations globally as of December 2023. Researchers have suggested ...

Nvidia recruits TI for 800Vdc data centre

Nvidia 800V data centre

Texas Instruments has joined the companies working with Nvidia on 800Vdc data centres. 800Vdc power-distribution architecture will provide the power density and conversion efficiency that future AI processors require, while minimizing the growth of the power supply’s size, weight and complexity,” said TI. Nvidia’s proposal is to convert 13.8kVac grid power directly to 800Vdc at the data centre perimeter. Compared with ...

Cable assemblies keep a low profile under cooling hardware

Samtec Si-Fly cable assemblies

Exhibiting a low mated height of 4.35mm, the Si-Fly LP (low profile) cable-to-board assemblies have been released by Samtec for use in data centre, HPC and AI applications. Typically in these areas the z-axis height near the IC package is limited. In addition to side-to-side and front-to-back mounting, the assemblies allow belly-to-belly PCB mounting (connectors and cages on both sides ...

Optimising the power pathway from grid to chip

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Scaling compute, power and cooling to expand data centre capacity is a challenge. Mattias Jansson considers some options suited for the demands of the AI era. Applications such as artificial intelligence (AI) and machine learning (ML) are increasingly integrated into society, largely enabled by the exponential growth in computing power that is made possible by the latest generation of semiconductors ...

2024 datacentre capex up 51% to $455bn

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Datacentre capex grew 51% to $455 billion in 2024, says Dell’Oro, with accelerated servers optimised for AI training workloads deployed by the hyperscalers accounting for most of the growth. “The top 10 hyperscalers accounted for more than half of global datacentre capex in 2024, driven largely by heightened investments in AI infrastructure,” says Dell’Oro vp Baron Fung, “while NVIDIA’s Hopper ...

±1ppb/°C 156.25MHz mems oscillator for SerDes and 800G links

SiTime SiT5977 mems oscillator

SiTime has introduced SiT5977, a ±1ppb/°C mems-based 156.25MHz oscillator for network timing in data centres. It is “capable of driving 800G and higher links via 80fs phase jitter and LVDS outputs,” according to the company. Inside the tiny package, which measures 3.5 x 5mm, is what is claimed to be “the world’s most accurate silicon temperature sensor”. This sensor consists ...

200A SMD fuse for PCBs

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Littelfuse has created a 200A surface mount fuse for data centre PCBs. The 12 x 13.3mm device is one of two members of the 871 fuse series, the other is rated at 150A. The full part numbers are: 0871200.UR 200A, 240mΩ, 90mV nominal voltage drop 0871150.UR 150A, 300mΩ, 75mV nominal voltage drop These are nominally fast-acting, and are rated to ...

ECOC: Optical connector feeds into data centre liquid cooling tanks

Molex optical feedthrough vapour connector

Extreme data centres are submerging their servers in tanks of liquid coolant, and Molex is working on a way to get optical fibre signals in and out of those tanks – particularly two-phase tanks, where vapour sits over the liquid surface. Branding them VaporConnect optical feed-through modules, the company said that they are a cassette-based design that bolts directly onto ...

Armoured cable assemblies for data centres

TiniFiber micro armoured cable

TiniFiber is making pre-terminated MPO (multi-fiber push on) cable assemblies from its’ Micro Armor’ optical fibre cable. The cable “assemblies are tested and verified to meet standards including IEC 61754-7 and EIA/TIA-604-5 (FOCIS 5), which specify a connector’s physical attributes as well as performance, and ensure inter-mating across all complying cables and connectors”, according to the company. Armour in the ...

RISC-V cluster IP for data centre SoCs and chiplets

SiFive P870-D RISCV cluster

SiFive has announced RISC-V core intellectual property for data centre processors. Called P870-D, it is an update of the non-data centre P870, with support added for AMBA CHI protocol. “By harnessing a standard CHI bus,” said SiFive, “the P870-D enables SiFive’s customers to scale up to 256 cores while harnessing industry-standard protocols including CXL [Compute Express Link] and CHI C2C [chip ...