Question about updating my ASUS BIOS.


THiBOR69

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I hope this is the correct forum to post this ... :unsure:

I am wondering if it is ok and/or advisable to update my bios, and which method is the best / easiest way to do it.
Currently, I am running v18.01 which is about 4 versions old. I was thinking of flashing the newest version:

ROG STRIX Z790-A GAMING WIFI D4 BIOS v21.02

Should I just do it through the current bios screen at POST or should I put it on a USB (renamed) and flash from the USB port
in the rear of the MB. Or is it possible to flash from within Windows itself ? Please see my spec's bellow and Thank You !!

BIOS Date: 12/08/2023
BIOS Version: 1801
UEFI BIOS: Capable

Motherboard Model: ASUS ROG STRIX Z790-A GAMING WIFI
Motherboard Chipset: Intel Z790 (Raptor Lake-S PCH)

Intel ME Version: 16.1, Build 2307, Hot Fix 30
WINDOWS.11 PRO 23H2
 
Windows Build/Version
Windows 11 PRO 23H2 (22631.3085)

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Hi @THiBOR69,

What I've written below is what works for me and isn't intended to be hard and fast advice that anyone else must follow.


Re carrying out Bios updates, they should never be done via Windows. I have an Asus z790 board and use the Flashback functionality on the rear of the motherboard. Using the flash utility in bios also works for me. In my experience the Flashback method for me has been the most failsafe method.

I usually update bios every 2nd release from Asus or if the bios update release notes mention something that gives me a very good reason to update immediately i.e. a key new feature or significant bug fixes. I updated using the previous bios (2002) and 2102 doesn't have changes listed by Asus that I think are critical for my PC. So I'm not going to update.
 
Last edited:

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@THiBOR69


I usually use a USB stick to flash the BIOS, from within the BIOS.
ASUS calls it... ASUS EZ Flash3


I pretty much agree with the post just above.
Generally, I wait to flash the BIOS until the BIOS description lists a reason to do so. I never use a beta BIOS.
I update the motherboard chipset drivers... every time a new non-Beta version is released.

The rest of the motherboard drivers, or the vid card driver, I generally leave alone unless there is a specific reason to update them.
As @Marcus Vinicus said... NEVER flash the BIOS from within Windows. That's just dangerous. ^^
 

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    Built by Ghot® (not in use)
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    AMD Athlon 64 X2 5000+ (OC'd @ 3.2Ghz)
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    ASUS M2N32-SLI Deluxe Wireless Edition
    Memory
    TWIN2X2048-6400C4DHX (2 x 1GB, DDR2 800)
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    EVGA 256-P2-N758-TR GeForce 8600GT SSC
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    PC Power & Cooling Silencer 750 Quad EPS12V
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    Firefox 3.x ??
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    Still assembled, still runs. Haven't turned it on for 13 years?
@THiBOR69


I usually use a USB stick to flash the BIOS, from within the BIOS.
ASUS calls it... ASUS EZ Flash3


I pretty much agree with the post just above.
Generally, I wait to flash the BIOS until the BIOS description lists a reason to do so. I never use a beta BIOS.
I update the motherboard chipset drivers... every time a new non-Beta version is released.

The rest of the motherboard drivers, or the vid card driver, I generally leave alone unless there is a specific reason to update them.
As @Marcus Vinicus said... NEVER flash the BIOS from within Windows. That's just dangerous. ^^

Ok thank you both for the tip's. Let me ask you one more thing, the flash drive (USB stick) that holds the new bios, should it be formatted as MBR or GPT and should it be FAT32 also ?

Thanks again.
 

My Computer

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  • OS
    Win 11
    Computer type
    PC/Desktop
    Manufacturer/Model
    HYTE Y70 Dual Chamber Mid-Tower ATX Case
    CPU
    Intel Core i7-14700K
    Motherboard
    ASUS ROG STRIX Z790-A GAMING WIFI
    Memory
    64 GB DDR5-7000 SDRAM
    Graphics Card(s)
    ASUS TUF Gaming GeForce RTX 4080 OC Edition
    Sound Card
    Intel Raptor Lake-S PCH - cAVS
    Monitor(s) Displays
    BenQ GW2780 x ( 3 )
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    1920 x 1080
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    Thermaltake Toughpower GF3 1350W
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    HYTE Y70 Dual Chamber Mid-Tower ATX Case
    Cooling
    Corsair iCUE H170i Elite LCD XT
    Keyboard
    K95 RGB PLATINUM SE Mechanical Gaming Keyboard
    Mouse
    LOGi MX 3S
    Internet Speed
    1.5 GB
Ok thank you both for the tip's. Let me ask you one more thing, the flash drive (USB stick) that holds the new bios, should it be formatted as MBR or GPT and should it be FAT32 also ?

Thanks again.


FAT32
And you'll probably have to rename the BIOS as well.
You should get a BIOS re-namer tool, with the BIOS file.



Here's your motherboard manual, and your BIOS manual...




NOTE: ASUS, in the past 5 years or so, has been making the BIOS manuals for more than one motherboard at a time. So the model may be slightly different, but it will be the correct BIOS manual.
 
Last edited:

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    Built by Ghot® (not in use)
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    AMD Athlon 64 X2 5000+ (OC'd @ 3.2Ghz)
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    ASUS M2N32-SLI Deluxe Wireless Edition
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    TWIN2X2048-6400C4DHX (2 x 1GB, DDR2 800)
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    EVGA 256-P2-N758-TR GeForce 8600GT SSC
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    PC Power & Cooling Silencer 750 Quad EPS12V
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    Generic Beige case, 80mm fans
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    ZALMAN 9500A 92mm CPU Cooler
    Mouse
    Logitech Optical M-BT96a
    Keyboard
    Logitech Classic Keybooard 200
    Internet Speed
    300/300
    Browser
    Firefox 3.x ??
    Antivirus
    Symantec (Norton)
    Other Info
    Still assembled, still runs. Haven't turned it on for 13 years?
I always use the USB Flashback port for BIOS updates on my Asus boards. Never had a problem.

As far as whether you should. There are no security updates that I can see. I believe there are some reported issues with some overclocking performance with these updated BIOS too. If you are not having issues, I would just skip this. There are Intel Management firmware updates included in the BIOS upgrade, and you cannot roll them back, even by flashing back to an earlier BIOS.
 

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    Intel i9 13900KS P/E cores 5.7/4.4 GHz, cache 5.0 GHz
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    Asus ROG Maximus Z790 Dark Hero
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    Firefox
I had odd issues upgrading from bios version 1801 to any newer version, lots of memory issues. I have an Asus z790 ProArt Wi-Fi motherboard, so you might be lucky
 

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    64GB Corsair Vengeance RGB
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@THiBOR69

For your motherboard... all BIOS versions from 1801 onward update intel ME to version 16.1.30.2307
So... you're already on... intel ME version 16.1.30.2307, so don't let that bother you.

Read the BIOS descriptions (for any other notes), and then decide if you "need" to flash the BIOS.
 

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    Win 11 Home ♦♦♦22631.3737 ♦♦♦♦♦♦♦23H2
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    Built by Ghot® [May 2020]
    CPU
    AMD Ryzen 7 3700X
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    Asus Pro WS X570-ACE (BIOS 4702)
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    G.Skill (F4-3200C14D-16GTZKW)
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    EVGA RTX 2070 (08G-P4-2171-KR)
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    Realtek ALC1220P / ALC S1220A
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    Dell U3011 30"
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    2x Samsung 860 EVO 500GB,
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    Speakers: Klipsch Pro Media 2.1
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    Windows XP Pro 32bit w/SP3
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    Manufacturer/Model
    Built by Ghot® (not in use)
    CPU
    AMD Athlon 64 X2 5000+ (OC'd @ 3.2Ghz)
    Motherboard
    ASUS M2N32-SLI Deluxe Wireless Edition
    Memory
    TWIN2X2048-6400C4DHX (2 x 1GB, DDR2 800)
    Graphics card(s)
    EVGA 256-P2-N758-TR GeForce 8600GT SSC
    Sound Card
    Onboard
    Monitor(s) Displays
    ViewSonic G90FB Black 19" Professional (CRT)
    Screen Resolution
    up to 2048 x 1536
    Hard Drives
    WD 36GB 10,000rpm Raptor SATA
    Seagate 80GB 7200rpm SATA
    Lite-On LTR-52246S CD/RW
    Lite-On LH-18A1P CD/DVD Burner
    PSU
    PC Power & Cooling Silencer 750 Quad EPS12V
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    Generic Beige case, 80mm fans
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    ZALMAN 9500A 92mm CPU Cooler
    Mouse
    Logitech Optical M-BT96a
    Keyboard
    Logitech Classic Keybooard 200
    Internet Speed
    300/300
    Browser
    Firefox 3.x ??
    Antivirus
    Symantec (Norton)
    Other Info
    Still assembled, still runs. Haven't turned it on for 13 years?
I have an Asus Z790 board and always flash from within the BIOS using the EZFlash option and a USB stick containing the BIOS update in a standard USB port (I have no BIOS flash port). Note your previous BIOS settings will not be restored if you have some non-default settings nor can I always load my settings stored on a USB stick. Therefore be sure to keep a written record of your preferred BIOS settings. I always wait a few weeks after Asus issue a new BIOS update just to ensure a rogue BIOS has not been issued.
 

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    64 GB Kingston Fury Beast DDR5
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    Realtek S1200A
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    Viewsonic VP2770
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    Noctua NH-D14
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    Microsoft Digital Media Pro
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    Logitech Wireless
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    50 Mb / s
    Browser
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    Defender
Doesn't Asus have a program to do it for you? They used to have. You run their program, they find the latest bios update and sort out the flashing.

Edit - apparently not.
 

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    Could be better
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    200mbps Starlink
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    Originally installed with a 500gb H10 Optane ssd
I also use the EZflash option in the BIOS with a USB stick and have been successful every time.
 

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  • OS
    Windows 10 Pro
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    ASUS
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    ASUS ROG Strix Z590-A Gaming WiFi LGA 1200
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    Corsair Vengeance LPX 32GB (2 x 16GB) DDR4 DRAM 3600MHz
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    Testing Windows 11 Pro Preview on 350GB drive

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    i7 13650HX
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    16GB DDR5
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    GeForce RTX 4060 Mobile
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    Eastern Electric MiniMax DAC Supreme; Emotiva UMC-200; Astell & Kern AK240
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    Sony Bravia XR-55X90J
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    3840×2160
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    512GB SSD internal
    37TB external
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    Li-ion
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    2× Arc Flow Fans, 4× exhaust vents, 5× heatpipes
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    Logitech K800
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    Logitech G402
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    20Mbit/s up, 250Mbit/s down
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    FF
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    11 Home
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    Medion S15450
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    i5 1135G7
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    16GB DDR4
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    Intel Iris Xe
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    Eastern Electric MiniMax DAC Supreme; Emotiva UMC-200; Astell & Kern AK240
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    Sony Bravia XR-55X90J
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    3840×2160
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    2TB SSD internal
    37TB external
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    Li-ion
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    Logitech G402
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    Logitech K800
    Internet Speed
    20Mbit/s up, 250Mbit/s down
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    FF

My Computer

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    Windows 11 Pro
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    Core i7-13700K
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    Asus TUF Gaming Plus WiFi Z790
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    64 GB Kingston Fury Beast DDR5
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    Gigabyte GeForce RTX 2060 Super Gaming OC 8G
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    Realtek S1200A
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    Viewsonic VP2770
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    Kingston KC3000 2TB NVME SSD & SATA HDDs & SSD
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    EVGA SuperNova G2 850W
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    Microsoft Digital Media Pro
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I don't update the BIOS unless I am dealing with an issue that the BIOS update addresses.
If my computer is working correctly, why update. For example, many BIOS updates deal with supporting addition CPU's.
Just my opinion.
 

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  • OS
    Windows 11 Pro
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    Custom Built
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    INTEL i9-10920X LGA 2066
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    Gigabyte X299-UD4 Pro F9
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    64 GB (4 X 16 GB) G-Skill V Series DDR4 3200 Quad Channel
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    EVGA GTX 1060 SC 3 GB
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    Realtek Onboard ALC1220
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    2 x Samsung S27E310
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    2 x Samsung 970 EVO Plus NVMe M2 500B
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    Seasonic X-1050
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    Thermaltake Armor+
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    Corsair H80i V2 Liquid AOI Cooler
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    Logitech G510s
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    Logitech MX Master2S
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    Netgear Orbi Mesh router,
    LG WH12LS39K Blu-Ray/DVD,
    Malwarebytes Pro 4.6.8
    Cyber Power CP1500PFCLCD UPS
As others have said EZFlash and usb drive with new bios on it. Bios FlashBack options initially became available for users with a motherboard bios that would not work with a newer CPU. The only way to update the motherboard bios was to use an older cpu. The bios flashback functionality fixed that issue. It also has the ability to help recover from a failed bios flash where only those motherboards with dual bios were capable of.

You only need to rename the bios if using the FlashBack option. IMO

And btw I have the same motherboard running latest bios.
 

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    Computer type
    PC/Desktop
    Other Info
    I'm a computer enthusiast so have quite a few systems that I run. More like an advanced hobby.
The motherboard has a built in BIOS flash feature. Don't over think it. Just use the built-in feature.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro
    Computer type
    PC/Desktop
    CPU
    AMD Ryzen 9 3900X
    Motherboard
    MSI MPG Gaming Edge Wifi (X570)
    Memory
    32GB Adata XPG DDR4
    Graphics Card(s)
    ASUS GTX 1070 8GB ROG
    Monitor(s) Displays
    LG Ultrawide 34"
    Screen Resolution
    3440x1440
    Hard Drives
    Main Boot Drive : 512GB Adata XPG RGB Gen3x4 NVMe M.2 SSD
    PSU
    EVGA 600 Watts Gold
    Case
    Deepcool Genome II
    Cooling
    Deepcool Fryzen
    Internet Speed
    1Gbps
    Browser
    Chrome
    Antivirus
    "Moderna"
  • Operating System
    Windows 11 Pro
    Computer type
    PC/Desktop
    CPU
    i7-4790K
    Motherboard
    ASRock Xtreme6 Z97
    Memory
    16GB Corsair Vengeance Pro
    Graphics card(s)
    MSI R9 290
    Monitor(s) Displays
    LG Ultrawide 34"
    Screen Resolution
    3440x1440
    Hard Drives
    Samsung M.2
    PSU
    Thermaltake 475 Watts 80 Bronze
    Case
    Thermaltake Commander I Snow Edition
    Cooling
    Deep Cool Archer Air Cooler
    Mouse
    Logitech G402
    Keyboard
    Armageddon MKA-5R RGB-Hornet
    Internet Speed
    1Gbps
    Browser
    Chrome
    Antivirus
    Moderna :)
I don't update the BIOS unless I am dealing with an issue that the BIOS update addresses.
If my computer is working correctly, why update. For example, many BIOS updates deal with supporting addition CPU's.
Just my opinion.
The download section [for the specific motherboard model in question] on Asus official website does make the clear distinction between critical and optional BIOS updates in the descriptions. If it's a critical update, then no matter if the computer appears to be working correctly, I'll grab the update. (For my new laptop the latest BIOS was a critical, performance related update.)

As others have said EZFlash and usb drive with new bios on it. Bios FlashBack options initially became available for users with a motherboard bios that would not work with a newer CPU. The only way to update the motherboard bios was to use an older cpu. The bios flashback functionality fixed that issue. It also has the ability to help recover from a failed bios flash where only those motherboards with dual bios were capable of.

You only need to rename the bios if using the FlashBack option. IMO

And btw I have the same motherboard running latest bios.
As @badrobot just explained, it has a built-in BIOS flash feature, which is precisely what I was referring to: EZ Update. On other motherboards from Asus, it's EZ Flash 3, but as the Q&A in the documentation that I linked to also explains, at the bottom of the page,

Q&A:

Q: Why can't find EZ Update in the 600 series motherboards in ASUS Official website?

A: In the 600 series motherboards, only ROG STRIX Z690–A GAMING WIFI D4/ ROG STRIX B660-A GAMNG WIFI D4/ ROG STRIX B660-A GAMNG WIFI support EZ Update.

The other 600 series motherboards will no longer support EZ Update, please refer to [Motherboard] ASUS EZ Flash 3 - Introduction to update BIOS.
 

My Computers

System One System Two

  • OS
    11 Home
    Computer type
    Laptop
    Manufacturer/Model
    Asus TUF Gaming F16 (2024)
    CPU
    i7 13650HX
    Memory
    16GB DDR5
    Graphics Card(s)
    GeForce RTX 4060 Mobile
    Sound Card
    Eastern Electric MiniMax DAC Supreme; Emotiva UMC-200; Astell & Kern AK240
    Monitor(s) Displays
    Sony Bravia XR-55X90J
    Screen Resolution
    3840×2160
    Hard Drives
    512GB SSD internal
    37TB external
    PSU
    Li-ion
    Cooling
    2× Arc Flow Fans, 4× exhaust vents, 5× heatpipes
    Keyboard
    Logitech K800
    Mouse
    Logitech G402
    Internet Speed
    20Mbit/s up, 250Mbit/s down
    Browser
    FF
  • Operating System
    11 Home
    Computer type
    Laptop
    Manufacturer/Model
    Medion S15450
    CPU
    i5 1135G7
    Memory
    16GB DDR4
    Graphics card(s)
    Intel Iris Xe
    Sound Card
    Eastern Electric MiniMax DAC Supreme; Emotiva UMC-200; Astell & Kern AK240
    Monitor(s) Displays
    Sony Bravia XR-55X90J
    Screen Resolution
    3840×2160
    Hard Drives
    2TB SSD internal
    37TB external
    PSU
    Li-ion
    Mouse
    Logitech G402
    Keyboard
    Logitech K800
    Internet Speed
    20Mbit/s up, 250Mbit/s down
    Browser
    FF
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