Analysis Hotter and more power-hungry CPUs and GPUs were already causing headaches for datacenter operators before Nvidia unveiled its 1,200W Blackwell GPUs at GTC last week. Over the past year, datacenter operators and colocation providers have expand support for high-density deployments through the use of rear-door heat exchangers (RDHX) and in some cases direct-to-chip (DTC) liquid cooling, in anticipation of rising chip temps. Looking at Nvidia's Blackwell lineup, it appears these modificati...