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  1. #1
    ROG Enthusiast Array
    Join Date
    Aug 2012

    Installing new GPU questions

    I've got a Rampage Extreme VI Omega motherboard with an Intel i9-9920X processor and 32 GB of RAM and I just got my hands on an ASUS TUF 3080 ti GPU. Right now I'm running BIOS version 3501 with the default settings and a RTX 2070 GPU. I have a couple of questions before I try to install the new card because I've read there are issues.

    1) Do I need to update my BIOS to the most current version for this card to work properly, which is v3701?

    2) Right now, CSM is set to "enabled" in the BIOS, so do I need to turn that off to avoid Display Port issues? Can it even be turned off after Windows is already installed?

    3) Do I need to set my PCI settings to GEN 3. Right now that's set to "Auto".

    4) Do I need to clear CMOS, or just make sure the BIOS is set to default settings before flashing?

    5) Lastly, does this motherboard support reBAR? From comments I've read here, maybe not.

  2. #2
    ROG Guru: Blue Belt Array restsugavan PC Specs
    restsugavan PC Specs
    ProcessorIntel Core i9 7980XE 2.60GHz
    Memory (part number)64GB GSKILL 3.2 GHz 16-16-18-36 2T
    Graphics Card #1ASUS ROG POSEIDON 1080Ti
    MonitorSAMSUNG ODESSEY G9 Firmware 1016.0
    Storage #1SAMSUNG 970 EVO PLUS 1TB x 3
    Storage #2WD 4TB External HDD
    CPU CoolerNZXT KRAKEN 62
    CaseCorsair Carbine 540
    Power SupplyCorsair AX1200i
    Keyboard Microsoft
    Mouse Microsoft
    Mouse Pad ASUS
    Headset/Speakers Sony
    OS Windows 11 Insider Preview 25284.1000
    Network RouterD-LINK
    restsugavan's Avatar
    Join Date
    Sep 2017

    1) No

    2) CSM Disable make Windows GPT partition boot faster.

    3) No. Choose auto it will use PCIe 3.0 x 16 by default.

    4) No. Only Install latest NVIDIA WHQL driver.

    5) Yes. X299 PCH support RE-BAR. But RE-BAR may not bring massive performance gain.

    Click image for larger version. 

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    Last edited by restsugavan; 09-26-2022 at 06:08 AM.
    Microsoft Windows 11 Insider Preview Build 25284.1000 Intel Core i9 7980XE 2.6 GHz 020006E05 Microcode ASUS RAMPAGE VI EXTREME MODDED BIOS 3701 SAMSUNG ODESSEY G9 FIRMWARE 1017.0 NVIDIA RTX 4090 24GB GDDR6X 256GB GSKILL DDR4 16-18-18-36 3200MHz SAMSUNG EVO 970 PLUS 1 TB x 3 HARMAN JBL 9.1 Sound Bar DOLBY ATMOS 9.1

  3. #3
    ROG Enthusiast Array
    Join Date
    Aug 2012

    Thanks for the answer. As for RE-BAR, I'm still only using a 2560X1440 monitor, so the new card will hardly bust a sweat until I get a 4K one, so it won't even be needed.

    Just out of curiosity, are there any telling reasons for a user to update to BIOS 3701? Everything seems stable on 3501, but if there's a benefit, like more stability or security to updating it, I might go ahead. Another interesting thing I've discovered. I went ahead and disabled CSM. But a side effect is that the resolution in the BIOS screen now matches my monitor's resolution, 2560X1440. Before when it was set to ENABLED, everything was stretched in the BIOS.

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