4x RTX 5090 rig melts a 13A wall socket before the 12VHPWR plug — power-limit your cards
Zo0x78 · reddit · 2026-10-19
A user running 4x RTX 5090s melted their standard 13A wall plug and socket during performance tuning — while the 12VHPWR connectors survived. Their PSA: set power limits on multi-5090 rigs and install a proper 16/20A circuit instead of relying on a 13A fuse.
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