Reports of melting 12VHPWR and 12V-2x6 connectors on NVIDIA GPUs—as well as a handful of examples from AMD—have become so common that hardware vendors have started building in safeguards against the issue. One such safeguard is a thermal sensor found on some ASRock power supplies, like the Phantom Gaming PG-1300G, which happened to recently save a user the expense and heartbreak of losing a heavily overclocked NVIDIA GeForce RTX 5090.

The incident was reported by user motivman on the Overclock.net forums, and according to the account, the MSI Ventus NVIDIA GeForce RTX 5090 GPU was overclocked to a whopping 1350 W, which is well over the stock 575 W TDP—although it's not uncommon to exceed rated TDPs during boost scenarios anyway—and it had just completed a benchmark run in 3DMark Port Royal when the PSU triggered a shutdown. The PC would not restart until the cable had cooled down, which is a decent showing for the PSU's safety feature—at least mostly.
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