Quad RTX 5090 LLM rig melts main plug and socket, owner blames 13A fuse

Reddit user Zo0x78 reported that his LLM build with four RTX 5090 GPUs melted the main power plug and damaged the wall socket. The GPUs alone draw 2300–2500W under load, while a 13A fuse in a UK socket was the only safeguard.

• Four RTX 5090 GPUs draw 2300–2500W under load
• A standard BS1363 13A socket at 230V handles about 3000W
• Owner advises power-limiting the GPUs and using a 16–20A socket
• Some commenters blame poor plug contact and fuse quality