# New Tools Enable Custom VBIOS on NVIDIA RTX GPUs

October 19, 2026 at 04:08 PM

> Developer Panchovix releases open-source loaders for RTX 50, 40, and 30-series GPUs to bypass power limits without flashing hardware.

Developer **Panchovix** released three tools for **NVIDIA** RTX 50, 40, and 30-series GPUs that enable modified VBIOS usage without flashing the card's chip. The Windows loader uses registry overrides, while the **Linux** version patches open kernel modules for the GSP.

The editor adjusts power limits, voltage ceilings, and clock offsets for Windows and Linux. Testing on an **RTX 5090** Founders Edition showed power ceilings rising from 600W to 700W, while an **RTX 4090** reached 750W. Laptop RTX 40 GPUs are currently unsupported.

These open-source loaders bypass NVIDIA's signature checks by loading custom images during startup. While memory timings remain locked to the physical flash chip, the tools allow an RTX 5080 to hit 500W, overcoming previous limits set by NVIDIA in August.


[#Nvidia](<https://hardwarebrief.com/hashtag/nvidia>) [#RTX5090](<https://hardwarebrief.com/hashtag/rtx5090>) #GPUOverclocking #VBIOS #Panchovix

## Related news

## [RTX 5090 Mod Replaces 12V-2x6 with Quad 8-Pin](<https://hardwarebrief.com/article/rtx-5090-mod-replaces-12v-2x6-with-quad-8-pin-6e55120f>)

October 22, 2026 at 01:50 PM

## [RTX 5090 GPUs Stolen at Brazil's Main Airport](<https://hardwarebrief.com/article/rtx-5090-gpus-stolen-at-brazil-s-main-airport-f87a4dab>)

October 18, 2026 at 10:43 AM

## [Nvidia Denies RTX 5090 Discontinuation Rumors](<https://hardwarebrief.com/article/nvidia-denies-rtx-5090-discontinuation-rumors-f5f994f7>)

October 18, 2026 at 08:56 AM

## [Custom RTX 5090 Mod Replaces 16-Pin Connector](<https://hardwarebrief.com/article/custom-rtx-5090-mod-replaces-16-pin-connector-63ba94f9>)

October 16, 2026 at 06:50 PM

## [Nvidia Halts RTX 5090 GPU Supply for Pro Market](<https://hardwarebrief.com/article/nvidia-halts-rtx-5090-gpu-supply-for-pro-market-44cbbbc2>)

October 10, 2026 at 09:07 AM