NVIDIA RTX 5090 Owner Made A Cutout In Side Panel For 12VHPWR Cable, Still Burns Out
An owner of an NVIDIA RTX 5090 went the proverbial extra mile to ensure the GPU’s 12VHPWR cable was free from the dreaded melting issue by creating a cutout in the mesh side panel of their casing. Sadly, not even that could prevent the situation from happening, and the connector’s head still burned out. The […] The post NVIDIA RTX 5090 Owner Made A Cutout In Side Panel For 12VHPWR Cable, Still…
A user of the NVIDIA RTX 5090 took extreme measures to prevent the 12VHPWR cable from melting by cutting a hole in their case's mesh side panel. Despite their meticulous efforts, the cable still overheated, resulting in damage to the header. The owner, who did not overclock or undervolt the GPU, connected the RTX 5090 to a Goghunters 1200W power supply made specifically for the GPU.
The power supply's name suggests it could overheat, hence the cautionary name "Fire F12 1200W." The owner replaced the case side panel with a mosquito net to avoid bending the 16-pin cable, but it still burned out. The owner did not report any overclocking or undervolting, and the mesh side panel made cutting the hole easy. The owner also mentioned that they did not apply additional pressure while routing the 16-pin cable.
Despite their precautions, the 12VHPWR cable still overheated, and the damage was discovered before the GPU was rendered useless. Goghunters responded to the incident, asking the owner to send the PSU for factory inspection, which could take up to a month. The RTX 5090 was then sent to a repair specialist who replaced the header for around $90 and added a phase-change thermal pad that reduced the GPU hotspot temperature by 18°C.
To improve power, the owner switched to a Seasonic 1600W PSU and added a mini Noctua fan for direct GPU power connector cooling.
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