Nvidia’s RTX 4000 series and the power connection that leads to major controversy melting problem seems to have spread to the Blackwell generation. Recently, some melting cases of RTX 5090 came up, while the first RTX 5080 cases appeared. This melting problem is a big problem because it damages both cards and cables and PSU.

Now RTX 5080

A Reddit user shared photos showing that the Asus Rogi Loki power supply melted on the PSU side of the Asus Rogi Loki power supply connected to the RTX 5080 graphics card. According to the user’s description, a red warning light appeared on the graphics card, which showed that a pin did not sit properly, although both CPU and GPU cables were replaced.

To solve the problem, the user closed his computer and re -connecting the cable, when the system restarts the warning, but the screen resolution and renewal rate decreased, GPU’nun PCIe 3.0 mode noticed. After a second closure and re -placement of all cables, it was understood that the 16 pine 12VHPWR connector on the PSU side melted. Luckily the GPU side and the graphics card itself did not suffer.

In the meantime, the same Asus Rog Loki power supply is reported to be used by some other users affected by the RTX 5090s melting cables. Although what we see is a problem with PSU, the melting cable problem is not special for Rog Loki. Some users say that 12VHPWR and subsequent 12V-2X6 are responsible for overheating problems. If this is true and the problem is caused by the cable design, a measure (perhaps a design change) must be taken here. Because the RTX 5080 attracts much less power than other cards.

As it is known, 12VHPWR and 12V-2X6 essentially the same cable, only connection-site changes were made. The cable of both standards is also compatible with existing sockets. That is, the 12VHPWR/12V-2X6 cable used in RTX 4090 can also be used in the current series.

Reddit user says that three different Rog Loki PSU users have similar problems on Youtube. However, it is not clear whether these cases are about RTX 5080 or RTX 5090. Meanwhile, Steve Burke from Gamers Nexus offered to buy these components for the test.

Problems are growing

On the other hand, it was recently reported that a RTX 5090 Founders Edition card had melted on both ends of the power cable and that both the graphics card and the PSU were damaged. Hardware Specialist der8auer in his tests in his tests 12VHPWR (12V-2X6) connection to the power supply (PSU) side of 150 ° C, the graphics card side of 90 ° C observed. Der8auer, 12-pine power cable two wires carries more current than should be found. According to the transmitted, one of these pins carried more than 22 amperes over the 12V cable. However, the 12VHPWR (12V-2X6) standard allows a maximum of 9.5 amps to pass through a single cable.