The server rack Nvidia designed for Blackwell—which can connect up to 72 GPUs at a time—is reportedly causing the overheating issue. Nvidia has repeatedly redesigned the racks, which could result in GPU server shipments being delayed and new Google ...

Speaking to DCD earlier this year, Ian Buck, Nvidia’s accelerated computing VP, said: "The fabric of NVLink, the spine, is connecting all those 72 GPUs to deliver an overall performance of 720 petaflops of training, 1.4 exaflops of inference."

Nvidia's upcoming Blackwell GPUs, already delayed to market, are reportedly facing severe overheating issues in high-capacity server racks, raising concerns over deployment timelines.