The drive to push the performance envelope of modern GPUs often comes at the cost of power. As NVIDIA's high-end cards keep climbing in performance, so does the frequency of their power connectors melting down. This time, however, it's not even a flagship model like the 4090 or 5090, but rather a budget GPU from the Ampere series — the RTX 3060 Ti.
A user on Baidu reported the power connector of their RTX 3060 Ti GDDR6X melting down in a freak incident, specifically the Asus Megalodon V2. It's worth noting that this is a special variant of the 3060 Ti designed exclusively for the Chinese market and, as such, it features a 12VHPWR power connector instead of the standard 8 or 6-pin that was the default with the 30-series.
However, the cable that the user received was a standard 12-pin cable that lacked the additional 4 pins present in a normal 16-pin 12VHPWR connector. These extra four pins are purposefully there to ensure a secure connection between the card and the cable, precisely in order to combat situations like this one.
Therefore, this can be chalked up to a strange and unacceptable mistake on Asus' part, especially when you dig a little deeper. In the photos supplied by the user, a dual 8-pin to 12-pin adapter can be seen, which ships with some 12-pin GPUs for use with older power supplies that don't have these new connectors.
So, despite the 3060 Ti rocking a 12VHPWR connector, the user received a 12-pin cable (and adapter) in the box, both of which are catalysts for a fire hazard. But it doesn't end there. All this happened while the card does not even need the beefy 16-pin connector in the first place, as it's just a 3060 Ti, which has a maximum power draw of 310W.
12VHPWR connectors don't have an issue supplying power up to 400W; it's only beyond that threshold where it starts to overheat, regardless of how tight the connection is. Here, the missing four pins that forced a 16-pin connector into a 12-pin one essentially guaranteed a loose fit that would ultimately lead to its demise.
This is the first-ever case of a relatively low-power GPU getting fried like this post the introduction of 16-pin connectors. No matter where it goes, 12VHPWR always finds itself in trouble . Sure, maybe there's some user error at play here, but shipping the wrong cable out of the box is a far more dangerous precedent to set than victim blaming.
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