: Because it runs in a DOS environment, it can be used to flash a card even if the current BIOS is corrupted and prevents Windows from booting. Integrated Package
: Restart your PC, enter your motherboard's BIOS/UEFI, and select the USB drive as the primary boot device. Compatible Hardware
: A power loss during flashing usually permanently bricks the card.
Version 5.163 was released at a turning point for NVIDIA's tool. According to user logs, up to version 5.163, full UEFI support was available for a wide range of cards, notably including Maxwell GPUs like the GeForce 800M series. However, starting with version 5.164, NVIDIA began to tighten security. The changelog indicates that newer versions introduced "OEM support" that restricted UEFI flashing to specific, certified configurations. For many custom or modified vBIOSes used by enthusiasts, only specially patched (bypassed) versions of NVFlash could work. nvflash 5.163 for dos
To flash the new firmware file to the graphics card, execute the following command: nvflash -f new.rom Use code with caution.
This indicates either a physical hardware fault with the card, a dirty AGP/PCIe slot, or that the graphics card model is too new for version 5.163 to recognize.
If a flash fails under Windows, your card might be partially initialized, making it impossible to re-flash from the same OS. But in DOS, you can often boot with a secondary GPU (or integrated graphics) and re-flash a “bricked” card as if nothing happened. : Because it runs in a DOS environment,
To write the new firmware to the graphics card, use the following standard syntax: nvflash newbios.rom Use code with caution.
: The most reliable archive for NVIDIA NVFlash versions.
(Note: Older versions may use nvflash -b backup.rom depending on the exact sub-revision). 2. Checking GPU Information Version 5
(Depending on the specific board partner layout)
To use this utility, you must create a bootable environment. Flashing a BIOS is high-risk and should only be done if absolutely necessary. 1. Prepare a Bootable USB
TechPowerUp (Check the "Show older versions" or "DOS" sections). ComputerBase . Bricked 970 trying to find a copy of NVflash for DOS
Unlike newer builds (e.g., 5.667+), 5.163 still includes the native .exe capable of running in a pure 16-bit DOS environment.