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02-02-2021 07:30 AM #1ROG Enthusiast Array
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Maximus XII Extreme - "This file is not a proper bios" - Bios Rollback
Hi everyone, currently on my maximus xii extreme I had the bios v.* 1003. I wanted to go back to the previous version 0901. I correctly formatted the usb key and renamed the file to .cap.* When I enter EZ-Flash and ask to read the file I get this error: "This File is not a proper bios." I can't go back!* I tried to download other earlier versions too (0804-0707 ... etc ..) ... nothing always has the same message!* Instead I tried to put the latest bios beta 2004 version and install it without problems!* I can't go back!
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02-02-2021 08:43 AM #2ROG Guru: Green Belt Array geneo PC Specs
geneo PC Specs Motherboard Maximus XII Hero Processor Intel 10700k @ 5.1Ghz Memory (part number) 64 GB G.Skill TridentZ RGB 3200/CL14 @ 3600 CL16 Graphics Card #1 Asus ROG Strix 2070 Super A8G Monitor EIZO Coloredge CG2730 and Viewsonic QHD displays Storage #1 Samsung 512 GB 960 Pro Storage #2 1TB 850 x 1 TB 860 EVO RAID0, 6 TB WDC Black and 6TB IronWolf Pro HDD CPU Cooler EK-AIO 360 D-RGB Case Fractal Design Meshify 2 dark tint Power Supply 750W Seasonic Prime Ultra Titanium Keyboard CM Quickfire Rapid TKL Mouse Logitech G305 Headset Bose QC15 Headset/Speakers Vanatoo T1, Klipsch R-12SWi Sub, Bose QC-15 OS Windows 10 Pro X64 Network Router Linksys EA7300 Accessory #1 Logitech c920e webcam
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Did you try bios flashback?
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02-02-2021 08:47 AM #3Administrator Array
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Redownload the file from the support site and use USB Flashback after renaming the CAP to M12E.CAP
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02-02-2021 09:51 AM #4ROG Enthusiast Array
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Sorry EZ Flash not good? I have already downloaded the bios 20 times and renamed them in .cap but I can't install them ... and the message is always the same ... I also changed the usb stick ... only the latest beta has updated the bios! What else should I do ???
Originally Posted by Silent Scone@ROG
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02-02-2021 09:53 AM #5ROG Enthusiast Array
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What is Flashback bios? I always used EZ Flash from bios ... you can explain why I'm not very experienced ... thanks friend. Originally Posted by geneo
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02-02-2021 11:28 AM #6ROG Guru: Yellow Belt Array pndiode PC Specs
pndiode PC Specs Laptop (Model) ASUS G752VL-DH71 Motherboard ROG Maximus IX Extreme Processor I7-7700K Memory (part number) G-Skill F4-3600C19Q-32GTZRB Graphics Card #1 ROG Matrix GTX 980TI -P-6GD5 Bitspower Water Block Graphics Card #2 ROG Matrix GTX 980TI -P-6GD5 Bitspower Water Block Monitor SAMSUNG S22D300HY (2 ea) Storage #1 WD Black SN750 1TB Storage #2 WD Blue 4TB (4 ea) CPU Cooler EK PE 360 (Top), PE 240 (Front), and Xres 100 Elite Case ROG Strix Helios Power Supply ThermalTake Toughpower 1200W Keyboard Cerberus Mouse Logitech MX Master S2 Headset ROG Strix Fusion 300 Mouse Pad Generic Headset/Speakers Bose Companion 3 Series II OS Win 10 Pro 20H2 Network Router Generic Accessory #1 ROG Aura Terminal Accessory #2 ROG 10GB Express Accessory #3 Corsair ML140 (4 ea), Corsair ML120 (3 ea)
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What is Flashback bios?
Page 2-19 in the User's Manual
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02-03-2021 03:11 PM #7ROG Enthusiast Array Snacko PC Specs
Snacko PC Specs Laptop (Model) Home Built Motherboard Asus ROG Maximus XIII Hero Processor Intel I9-10850k Memory (part number) G.Skill Ripjaws V Series 64GB (4 x 16GB) DDR4 3200 Graphics Card #1 Gigabyte RTX 3080 Gaming OC Monitor Triplescreen + Touchscreen Storage #1 2 x M.2 (1 TB / 2 TB) EVO Plus Storage #2 WD 2TB 3D Blue SSD CPU Cooler Thermaltake Water 3.0 Ultimate CPU Cooler 360MM Power Supply Corsair 850watt CMPSU-850TX OS Windows 10 Home x64
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Would clearing the CMOS help?
Intel I9-10850k / Asus ROG Maximus XIII Hero / G.Skill Ripjaws V Series 64GB (4 x 16GB) DDR4 3200 / Thermaltake Water 3.0 Ultimate CPU Cooler 360MM
Gigabyte RTX 3080 Gaming OC / Corsair 850watt CMPSU-850TX / 2 x M.2 (1 TB / 2 TB) EVO Plus/ /2x SanDisk 250gb SSDs (Raid0 total 500gb) / WD 2TB 3D Blue SSD
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02-04-2021 01:44 PM #8ROG Guru: Orange Belt Array Saltgrass PC Specs
Saltgrass PC Specs Motherboard Maximus XIII Hero Processor i9 11900K Graphics Card #1 EVGA RTX 3090 FTW Sound Card On Board Monitor Dell AW3420DW Storage #1 Samsung 980 Pro 2 TB Storage #2 Samsung 860 Pro 1 TB CPU Cooler Cooler Master Hyper 212X Case Cooler Master Power Supply Antec HCP Platinum 1000 Keyboard ASUS Strix Flare Mouse ASUS Chakram Headset/Speakers Logitech wired 5.1 OS Win 10 Pro Network Router ROG Rapture GT-AX11000/AXE11000 Accessory #1 VR Headset Accessory #2 Saitek X52
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What do you mean you renamed the file to .cap? If you are using EZ Flash, that is already set on the actual file name.
Why are you changing the Bios so much? I haven't had problems with any of them.. except 2004, which would not install when first released but was corrected later in the day.
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02-09-2021 03:52 PM #9New ROGer Array
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I'm having the exact same problem with a Z490-E. Were you able to find a solution?
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02-09-2021 04:52 PM #10Administrator Array
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Renaming is only a function needed for USB Flashback, use this feature as suggested above if wanting to roll back. Originally Posted by theotorm
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