NVIDIA’s Falcon Security: The Rise and Bypass of BIOS Protections

In 2013, NVIDIA introduced a distinctive BIOS validation method for its GeForce graphics cards, employing a security chip based on the codename “Falcon”. Commencing with the Maxwell architecture, this approach encompassed BIOS signature locks and stringent restrictions related to vendor/device verification, devised to inhibit the GPU from booting with unauthorized firmware.

According to TechPowerup, there have emerged developers who, via innovative tools—namely OMGVflash crafted by Veii, and NVflashk conceptualized by Kefi (each developed autonomously)—have adeptly circumvented NVIDIA’s BIOS constraints on GeForce graphics cards. These advancements facilitate arbitrary firmware updates for the cards, obviating the need for server verification and discarding any minimum version prerequisites.

Such cutting-edge tools have ushered in heightened prospects for graphics card overclocking, coupled with amplified maneuverability over card performance. For instance, one could flash the BIOS tailored for AD102-300 onto a GeForce RTX 4090 equipped with AD102-301, reverting to a peak core voltage of 1.1V. This can potentially enhance the card’s power consumption and frequency. Moreover, it provides a refined grasp of thermal management and fan curve dynamics, ensuring a more serene operational ambiance for the card. It’s pivotal to recognize that such undertakings were once commonplace prior to NVIDIA’s implementation of the aforementioned restrictions.

However, a gambit to alter the BIOS invariably implies the forfeiture of the graphics card’s warranty. Such ventures are fraught with risks, and typically, only seasoned gaming connoisseurs might opt for such modifications. To forestall any firmware refresh mishaps, it’s prudent to back up the extant BIOS prior to any intervention. Preferably, cards equipped with a dual-BIOS feature should be the choice for such endeavors.