Two reports of power cables burning or melting are being investigated by the company. The first person to post about the burn damage on the new 12VHPWR cable was reggie_gakil. The card's connection was damaged.
A second poster replied to the same thread showing off the damage to the power transformer.
The reports are being investigated by the company, according to Bryan Del Rizzo. We are in touch with the first owner and will be reaching out to the other.
The new 16-pin power connection on the RTX 3090 Ti cards was moved to a standard on the other 40 series cards. There are concerns that the 12VHPWR power connection could cause issues if it is bent in a certain way.
The 12VHPWR is a lot smaller than the previous generation, and cablemod warns that bending the wires too close to the connection could cause some of the terminals to come loose. The site recommends that you have a minimum distance of 35mm from the connecting point before bending it.
It is not easy in practice, with the side panel being hit by the side panel. The cable could have bent before the minimum distance if the poster had mounted it vertically.
Jayz Two Cents, who has been warning about this new connection for weeks, says it is dangerous. Brandon Bell, a senior technical marketing manager at Nvidia, told Jay that he was worried about issues that didn't exist.
In early September, the industry consortium responsible for developing standards around peripheral component I/O data transfers warned that some implementations of the 12VHPWR connector could cause safety issues.
The result of extreme bends during testing is the images supplied byPCI-SIG. The melting is very similar to what has happened with the posters.
The solutions to these issues might be to avoid the power adapter in the first place. It requires up to four 8-pin power connections and is supplied with the cards. Power supply vendors are starting to ship 12VHPWR cables that don't have the bulky connection for a single cable that terminates into two 8-pin power connections on a PSU. Corsair sells its own products.
The cables should help us avoid the awkward bends we are seeing with the new connections. New ATX 3.0 power supplies will help, but there aren't many on the market and not many PC users will want to spend extra to get a native 12VHPWR port.
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