I'm trying to enable Resizable BAR for my NVIDIA GeForce RTX 3070 on my prebuilt PC from Acer. I've followed some online guides, but I keep seeing that reBAR is set to 'No' or turned off. I've checked that I'm running in UEFI mode and booting from GPT, and I even used NVIDIA Inspector to enable rBAR. I've updated my BIOS to the latest version (R01-A4) and made sure to turn on 'Above 4G Decoding' and 'Re-size BAR Support' in the BIOS settings. However, when I run the Firmware Updater from NVIDIA, it tells me my GeForce RTX 3070 is unsupported by the tool and suggests contacting the card vendor. I'm not sure why that's happening since I downloaded the tool meant for NVIDIA's Founders Edition cards - my GPU's subvendor in GPU-Z says it's PCPartner. Any advice on what to do next? I'm just looking to get a bit more performance out of my PC.
1 Answer
It sounds like you’ve done all the right things with your BIOS settings. If it’s still not working, it might be worth checking if there's anything wrong with your Windows installation. Sometimes corrupt system files can cause issues like this. You can try running a repair install or doing a clean install if nothing else works. Just keep in mind that enabling Resizable BAR doesn't give a huge performance boost - usually only a few percentage points. So even if you can't enable it, it's not the end of the world!
I’m on Windows 10 too, and yeah, if it’s not a big difference, maybe it’s not worth the hassle. My PC struggles with some newer games like Helldivers 2, dipping below 30 FPS even with DLSS set to Ultra Performance. Just trying to squeeze out as much power as I can!