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  1. #1
    ROG Enthusiast Array GEEKCPA PC Specs
    GEEKCPA PC Specs
    MotherboardRampage VI Extreme
    Processori9 7900X
    Memory (part number)Corsair Vengeance RGB 64 GB
    Graphics Card #1Strix 1080Ti OC
    Graphics Card #2Strix 1080Ti OC
    Storage #1Intel PCIe X4 Optane 900P
    Storage #2Samsung 960 Pro X2
    CPU CoolerEKWB Mono block
    CaseTT View 71TG
    Power SupplyEVGA 1300 G2
    OS Windows 10 64-bit
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    CMOS battery type for Rampage 6 Extreme?

    I started a build about 4-5 years ago with a 7900X on a Rampage VI Extreme, but I let it sit without use for several years. Now I think my CMOS battery is dead as I get a prompt to press F1 and reset AHCI or RAID in the BIOS. I get this prompt only if I have previously turned off the power to the MB, it boots fine if I leave the power to the MB on at the PSU switch.

    What type of battery is used in the Rampage 6? I've scoured the manual and find nothing specifying which battery to use. Worst part of all this is I have to drain the coolant from my system and disconnect some fitting to remove the video cards to access the battery under the 2nd video card. (two 1080Ti's is SLI)

    Any help you can give me is appreciated.

  2. #2
    ROG Member Array Jnanislore PC Specs
    Jnanislore PC Specs
    Laptop (Model)N/A
    MotherboardRog Strix B550-F Gaming
    ProcessorAMD 3600X
    Memory (part number)Crucial Ballistix DDR4 3600 16 GB
    Graphics Card #1Radeon RX 460

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    I'm not sure about CMOS replacement as I've never needed one, but I'd take the one you have to a computer repair shop and ask for advice. They'll probably just sell you a replacement if they have one, and if not tell you what you need, free of charge.

  3. #3
    Moderator Array world PC Specs
    world PC Specs
    MotherboardASUS PRIME X470-PRO
    ProcessorRyzen 3600x
    Graphics Card #1ASUS ROG Strix 1080 ti
    Sound CardAune T1 DAC
    CPU CoolerThermaltake Water 2.0
    CaseJonsbo U4
    Power SupplyCooler Master V1200
    Mouse Asus ROG Chakram X
    Headset Sennheiser HD598

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    Most motherboards use a CR2032 battery for CMOS battery, and it should say right on the battery itself what type of button battery it is.

    [EDIT]
    Looks like it's a CR2032 for Rampage VI.
    https://rog.asus.com/forum/showthrea...ery-placement!
    Last edited by world; 10-27-2022 at 02:26 AM.

  4. #4
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    It should be a CR2032 for just about any Motherboard ever built.

    And YES, if you are not going to use the motherboard, take out the battery or it will drain it keeping BIOS settings till the battery dies. They can last over 10 years if they are not in the board.

  5. #5
    ROG Enthusiast Array GEEKCPA PC Specs
    GEEKCPA PC Specs
    MotherboardRampage VI Extreme
    Processori9 7900X
    Memory (part number)Corsair Vengeance RGB 64 GB
    Graphics Card #1Strix 1080Ti OC
    Graphics Card #2Strix 1080Ti OC
    Storage #1Intel PCIe X4 Optane 900P
    Storage #2Samsung 960 Pro X2
    CPU CoolerEKWB Mono block
    CaseTT View 71TG
    Power SupplyEVGA 1300 G2
    OS Windows 10 64-bit
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    Problem got worse

    My problem just got worse. I had to remove the MB completely, because ASUS engineers attached the armor covering to the mother board with screws that can only be accessed from the backside, and my case is not open on that part of the mother board. Major pain. Finally got the armor covers off and I find the CMOS battery is completely different from anything I've ever seen. The battery is wrapped in a black vinyl with text on the outside that says "79A KTS 2032 3.0V" It has two wires attached to the battery and a micro two pin connector to the motherboard. I can't get the battery out as the vinyl covers the entire circumference of the battery casing. I can't find the typical latch release one would normally find on a CMOS battery to release it from the housing. Why does this battery have a cable attached to the MB? Is it a rechargeable battery? If so, why is it displaying all the symptoms of a dead battery?

    Here's a pic (hope it displays): Can't get pic to display--it uploads but will not transfer image to the message.
    Miniatura de Adjuntos Miniatura de Adjuntos Rampage VI CMOS-resized.jpg  


  6. #6
    ROG Guru: Orange Belt Array Murph_9000 PC Specs
    Murph_9000 PC Specs
    MotherboardROG Crosshair VIII Extreme
    ProcessorAMD Ryzen 5950X
    Memory (part number)Crucial Ballistix DDR4-3600 CL16 (BL16G36C16U4B.M16FE1)
    Graphics Card #1ROG Strix Radeon™ RX 6750 XT OC Edition 12GB GDDR6
    MonitorROG Strix XG43UQ, XG27AQM
    Storage #1Seagate FireCuda 530
    CPU CoolerROG Ryujin II 360
    CaseROG Strix Helios
    Power SupplyROG Thor 1200W Platinum
    Keyboard ROG Strix Scope RX, ROG Claymore II
    Mouse ROG Keris Wireless, ROG Chakram X
    Headset ROG Delta S
    Mouse Pad ROG Scabbard II
    OS Windows 11 Pro
    Network RouterROG Rapture GT-AX6000
    Accessory #1 ROG Eye S
    Accessory #2 ROG Strix Magnus
    Accessory #3 LINKUP Ultra PCIe 4.0 x16 Riser Cable - Right Angle - 20cm

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    That's just a normal CR2032, but unfortunately one of the times they soldered/welded wires to it and shrink wrapped it, instead of just using the normal battery holder. It's not rechargeable. There are replacements for this annoying variant of the CR2032, but far more difficult to come by than the standard battery which you can pick up with your groceries. You could try ASUS support to see if they can sell you a replacement, or try Ebay or Amazon.

    N.B. The polarity matters, ensure that any replacement is wired the same way (positive & negative). This is also a problem that doesn't really exist with a normal battery holder.

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