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MSI GeForce RTX 30 Series


Resizable BAR (Re-Size BAR) is an advanced PCI Express feature that enables the CPU to access the entire GPU frame buffer at once and improve performance. To enable Re-Size BAR on your MSI RTX 30 series graphics card you will need to update the vBIOS. This process is easy & safe using MSI Dragon Center or MSI Live Update. Updating the GPU firmware should only be performed if the rest of the platform supports Resizable BAR. When scanning your system, the software will detect whether a firmware update is available, and if supported, will give the option to update it.

Read our Resizable BAR article to learn more about supported CPUs, motherboards, GPUs, and games.


NV Resizable BAR Image


System Requirements

The following MSI graphics cards now support Resizable BAR:
MSI GeForce RTX 3090, 3080, 3070, and 3060 Ti graphics cards

To enable resizable BAR, MSI GeForce RTX 3090, 3080, 3070, and 3060 Ti graphics cards require a vBIOS update available through MSI Dragon Center or MSI Live Update.

In the Dragon Center menu, go to Support. Then select the Advanced option on the top right to start the scanning process.

In the Live Update menu, go to Support. Then select the BIOS Update on the top right to start the scanning process.


MSI Dragon Center


MSI Dragon Center
In the Live Update menu, go to Support. Then select the BIOS Update on the top right to start the scanning process.


MSI Dragon Center
MSI Dragon Center


Once scanning is completed the program will show any firmware and/or BIOS updates for your MSI components. Update the latest vBIOS for your MSI RTX 30 series graphics card by ticking the box in front of it, then clicking Install and following the instructions.

Apart from a supported graphics card, we also listed of CPUs that support Resizable BAR, so unless you have the right combination of GPU, motherboard, CPU you cannot use the Resizable BAR.


MSI Dragon Center


For MSI motherboard users, please update the motherboard driver to the latest version as well.
Go to "Settings > Advanced > PCI Subsystem Settings", enable "Re-size BAR" and "Above 4G memory/Crypto Currency mining", press "F10", to save the settings and reboot.

MSI Dragon Center


MSI Dragon Center


For more information on enabling NVIDIA Resizable BAR the NVIDIA resizable BAR blog
Link to the NVIDIA resizable BAR BIOS update information page, containing general flashing instructions and info on error codes