Modder and Redditor DallasGrave recently posted their modding efforts on Reddit, where they replaced the 16-pin 12VHPWR power connector on their Gigabyte RTX 5090 with four 8-pin PCIe Power ports. Well, we say replace, but it’s more a modification that mounts those 8-pins directly onto a custom PCB, while
“Some of you may have seen the remote mounted dual 8 Pin auxiliary module I posted. Well, this is the direct mount Quad. Current per conductor is almost perfectly halved when compared to the native 12V-2×8, along with a dramatic reduction in wire temperature.”
<img decoding="async" class="size-full wp-image-407692" src="https://www.lowyat.net/wp-content/uploads/2026/10/Modder-RTX-5090-four-8-pin-1-scaled.webp" alt="Modder RTX 5090 four 8 pin 1 scaled" width="2560" height="1439" title="Modder Solves Melting RTX 5090 12VHPWR Connector By Replacing It With Four 8-Pin Ports 3" srcset="https://www.lowyat.net/wp-content/uploads/2026/10/Modder-RTX-5090-four-8-pin-1-scaled.webp 2560w, https://www.lowyat.net/wp-content/uploads/2026/10/Modder-RTX-5090-four-8-pin-1-300x169.webp 300w, https://www.lowyat.net/wp-content/uploads/2026/10/Modder-RTX-5090-four-8-pin-1-1240x697.webp 1240w, https://www.lowyat.net/wp-content/uploads/2026/10/Modder-RTX-5090-four-8-pin-1-768x432.webp 768w, https://www.lowyat.net/wp-content/uploads/2026/10/Modder-RTX-5090-four-8-pin-1-1536x864.webp 1536w, https://www.lowyat.net/wp-content/uploads/2026/10/Modder-RTX-5090-four-8-pin-1-2048x1152.webp 2048w, https://
