RTX 5090D/5080 16-pin power cable burned out for the first time, but they shouldn’t be blamed

Before the launch of the RTX50 series, NVIDIA had assured that the burning problem caused by the 16-pin power interface on the RTX4090 had been completely resolved and the new card was absolutely safe. However, accidents still happened, but it seemed that the new card itself was not to blame.

Hong Kong media PCM claimed that they went through a large number of high-load tests in the first evaluation of RTX5090D and RTX5080.The two 12VHPWR 16-pin power cord interfaces corresponding to the two 1200W power supplies on the system platform are both burned out., remind everyone to remember to change the power supply when you grab a new card.

However, PCM later issued an update saying,They tested the RTX 4090 at the same time, doing a lot of plugging and unplugging power cords between different graphics cards.During this period, I noticed some instability, but I don’t know exactly when it burned out because the power supply was always normal.

In addition to both ends of the power cord being burned, after careful inspection, it was also found that there were obvious signs of burns on the RTX4090, while the RTX5090D/5080 was normal and can continue to be used.

It is speculated from this that the power cord burnout phenomenon may still occur on the RTX4090, and it should have nothing to do with the RTX5090/5080. They are just implicated.

In addition, PCM has been talking about 12VHPWR, which is the first version of the specification for the 16-pin interface, and the upgraded and safer one is 12V-2x6.

I don’t know if what PCM said is an old habit, or if their power supplies and power cords are still old versions.

According to the official specification sheet given by NVIDIA,RTX5090/5090D both require a power supply of at least 1000W, and paired with a native 16-pin power cord, or four 8-pin to 16-pin power cords.

What the official did not say is that the power supply should comply with the latest ATX3.1 specification, because on the one hand, its own 12V-2x6 power cord is safer, on the other hand, the instant power consumption of the RTX5090 can exceed 900W, and only a new power supply can satisfy it.