This VBIOS update (v4) is offered only to solve issues that may have emerged after an earlier update. If you successfully installed the previous VBIOS (v3) and have no issues, then there is no need to update it.

NVIDIA Resizable BAR technology gives a system’s CPU direct access to the entire GPU frame buffer. Multiple CPU to GPU transfers can be made concurrently instead of being queued, leading to a performance boost for memory-intensive games and workloads.

To enable Resizable BAR, please ensure your system meets the following minimum requirements:
1、Intel 10th Gen or AMD Zen 3 CPU
2、ASUS motherboard BIOS is updated to support Resizable BAR
3、System uses the latest NVIDIA VGA drivers

Please refer to this list of ASUS motherboards supporting the Resizable BAR BIOS update (as of March 30, 2021):
https://www.asus.com/news/mwpkjc0kp0ekeuik/

Please refer to the following NVIDIA webpages for detailed information:
NVIDIA Resizable BAR blog: https://www.nvidia.com/en-us/geforce/news/geforce-rtx-30-series-resizable-bar-support/
NVIDIA Resizable BAR VBIOS update information: https://nvidia.custhelp.com/app/answers/detail/a_id/5165

Name: RTX3090_V4.exe
Size: 11436640 bytes (10 MiB)
SHA256: B44141584238B73DCA3060C6A086F88D801D052F43689A274E5923BA271CF9B4

NVIDIA Resizable BAR technology gives a system’s CPU direct access to the entire GPU frame buffer. Multiple CPU to GPU transfers can be made concurrently instead of being queued, leading to a performance boost for memory-intensive games and workloads.

To enable Resizable BAR, please ensure your system meets the following minimum requirements:
1、Intel 10th Gen or AMD Zen 3 CPU
2、ASUS motherboard BIOS is updated to support Resizable BAR
3、System uses the latest NVIDIA VGA drivers

Please refer to this list of ASUS motherboards supporting the Resizable BAR BIOS update (as of March 30, 2021):
https://www.asus.com/news/mwpkjc0kp0ekeuik/

Please refer to the following NVIDIA webpages for detailed information:
NVIDIA Resizable BAR blog: https://www.nvidia.com/en-us/geforce/news/geforce-rtx-30-series-resizable-bar-support/
NVIDIA Resizable BAR VBIOS update information: https://nvidia.custhelp.com/app/answers/detail/a_id/5165

Name: RTX3090_V3.exe
Size: 11425856 bytes (10 MiB)
SHA256: 49F147AC5177C4BFB3A2DFF61073EF52BC27826BC82072AF9F243C44076FE4CC

- Further optimize the performance for 0dB fan feature
- Fixed motherboard “beeping” bug during computer start-up