12VHPWR connector
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- Four RTX 5090 LLM rig melts UK mains plug and socket, 12V-2x6 connectors survive
A Reddit user posting as u/Zo0x78 reported that the main power plug and wall socket on a four-GPU RTX 5090 LLM workstation melted during tuning, while all four 12V-2x6 connectors were undamaged, as relayed by Wccftech and cnBeta. The rig has 128GB of GDDR7 memory and can run 120B-parameter models with quantization; the four cards draw 2,300W–2,500W at full load and whole-system continuous power is around 2,800W, close to the roughly 3,000W ceiling of a UK 230V 13A socket. Commenters disputed the cause, citing poor plug-to-socket contact or subpar plug or fuse quality, and the owner advised other quad-RTX 5090 users to power-limit their GPUs, while some commenters said 16A or 20A industrial sockets are needed.
cnBeta · 🔥 0
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