Windows 8 and 8.1 Forums

BIOS Updating

  1. #1


    N.Y.
    Posts : 2,214
    Windows 10 Pro 64bit

    BIOS Updating


    Wanted to know if i did a BIOS update can it be easily reversed in case of a failure. Some say by re-flashing the old BIOS back in, some say you need to remove the battery inside case and put it back in while pushing the power button and some say way in BIOS to set it back to default BIOS.

    I know it is not important to update a BIOS if there is no major changes to a new one or if you are experiencing hardware compatibility problems because it can brick the MB. I thought it may add some features i do not have for RAM and UEFI.

    Although i did it about 4-5 months after purchasing this system and it worked fine. When i go back now and look at the manufacturer's site under my model number PC it lists all .CAP BIOS 's, except for one i have now and below that one on list are .ROM. My version BIOS is 4101

    My system uses a .ROM BIOS and it is told to you on the site from list of the systems BIOS's , not to use .CAP if have a .ROM one.


    What is weird when i go to the Motherboard on same site instead of the system model, version numbers of each BIOS do not correspond to the version numbers of the system model, but the MB BIOS's are all .ROM ones.

    I posted both links plus when i purchased the PC it was with Windows 7 64bit Home Premium, i upgraded to Windows 8.1 Pro 64bit.
    Why i am looking at the Windows 7 64bit chose on each link, actually same on Win8.1 .
    First link is System, second is the MB. Any advice or ideas be much appreciated. Oh, ASUS wasn't that sure or helpful once before.


    ASUSTeK Computer Inc. -Support- Drivers and Download CM6730

    ASUSTeK Computer Inc. -Support- Drivers and Download P8H61-M PRO

      My System SpecsSystem Spec

  2. #2


    The windows 8 BIOS file is the last one you could use. the .CAP is for mother board that came with Window 8 installed. You stated yours came with Windows 7 so as the Win 8 BIOS driver say's is only for Mother Board that came with windows 8.
    So that solves you problem. It would be foolish of you to update your BIOS unless you know there is a updated feature that you need. Otherwise it is hazardous to your computer. Is you do be sure to extract the downloaded BIOS directly to a Fat 32 USB Stick. Then use the Ezflash in the BIOS. Doing it this way is almost 100% success, Winflash is less that 50% and lots of bricked notebooks. Not all the sure on Mother Board but seem like in the old days you could pull the BIOS Battery and that would set the BIOS back to original version.
      My System SpecsSystem Spec

  3. #3


    N.Y.
    Posts : 2,214
    Windows 10 Pro 64bit


    Yes, weird as to see why the motherboard has ROM BIOS listed, but i also know there are revision differences possibly with the same model number boards, mine is rev. 1.0 These listed could be for a different one, like rev. 3.0 ,what scares me also, not telling you here.
    Believe me i would not be foolish to do it, without knowing for sure.ty
      My System SpecsSystem Spec

  4. #4


    Sydney, Nova Scotia, Canada
    Posts : 6,490
    Windows 10 Education 64 Bit


    Could the ROM versus CAP be because they updated the BIOS to UEFI for Windows 8.x? Since yours came with 7 it doesn't have a UEFI BIOS? If so flashing with the file for a UEFI BIOS may brick your MB. The physical BIOS chip is likely different for UEFI?
      My System SpecsSystem Spec

  5. #5


    N.Y.
    Posts : 2,214
    Windows 10 Pro 64bit


    Quote Originally Posted by alphanumeric View Post
    Could the ROM versus CAP be because they updated the BIOS to UEFI for Windows 8.x? Since yours came with 7 it doesn't have a UEFI BIOS? If so flashing with the file for a UEFI BIOS may brick your MB. The physical BIOS chip is likely different for UEFI?

    Mine does have a EFI BIOS, just does not support .CAP BIOS, only .ROM . Just do not get it, as said to clintlgm weird why motherboard are all ROM and system model is all CAP except the one i have 4101 and below. It baffles me why even the number order for each are different too, MB and System Model. It baffled a ASUS's Motherboard tech on phone once too, get that ! At time it was a call about RAM upgrade.
      My System SpecsSystem Spec

  6. #6


    Sydney, Nova Scotia, Canada
    Posts : 6,490
    Windows 10 Education 64 Bit


    All I can say is ????
      My System SpecsSystem Spec

  7. #7


    Quote Originally Posted by jds63 View Post
    Quote Originally Posted by alphanumeric View Post
    Could the ROM versus CAP be because they updated the BIOS to UEFI for Windows 8.x? Since yours came with 7 it doesn't have a UEFI BIOS? If so flashing with the file for a UEFI BIOS may brick your MB. The physical BIOS chip is likely different for UEFI?

    Mine does have a EFI BIOS, just does not support .CAP BIOS, only .ROM . Just do not get it, as said to clintlgm weird why motherboard are all ROM and system model is all CAP except the one i have 4101 and below. It baffles me why even the number order for each are different too, MB and System Model. It baffled a ASUS's Motherboard tech on phone once too, get that ! At time it was a call about RAM upgrade.
    I think you are correct that its the MB Rev that are making the difference, I have the same issues there is an more advanced BIOS for later Rev board I all most screw up and tried the wrong one.
    I haven't see the BIOS.CAP before. my notebook 2012 era stock win 7 HP did have a UEFI option and it is default but all the BIOS update are .ROM i.m running 8.1.1 pro 64Bit UEFI no problem but I don't have Safe boot available in my BIOS.
      My System SpecsSystem Spec

  8. #8


    N.Y.
    Posts : 2,214
    Windows 10 Pro 64bit


    Clintlgm, yes i think so, also because of the board revision and ROM BIOS i was also unable to support Secure boot when i upgraded to Windows 8 originally, even tapped Brink's brain on that one.

    This is also true i do not want to screw up and be mad i bricked my MB over being anxious for a BIOS update. New revision board which would be revision 3.0, exact same looking board, just insides are different i guess.

    Well i am running in UEFI GPT on 2 SSD's with Windows 8.1 Pro 64bit with all recent updates, board can not go further then 16GB.
    Funny is when you look at site for this board all specs are same, except this CAP stuff.
      My System SpecsSystem Spec

  9. #9


    Quote Originally Posted by jds63 View Post
    Clintlgm, yes i think so, also because of the board revision and ROM BIOS i was also unable to support Secure boot when i upgraded to Windows 8 originally, even tapped Brink's brain on that one.

    This is also true i do not want to screw up and be mad i bricked my MB over being anxious for a BIOS update. New revision board which would be revision 3.0, exact same looking board, just insides are different i guess.

    Well i am running in UEFI GPT on 2 SSD's with Windows 8.1 Pro 64bit with all recent updates, board can not go further then 16GB.
    Funny is when you look at site for this board all specs are same, except this CAP stuff.
    Yea, I almost flashed on the later Rev board like mine. That's why we only get these though the manufacture Asus has all my products listed by serial number. But sorry for me no UEFI on these boards for me. Time to upgrade anyway in the next few months
      My System SpecsSystem Spec

  10. #10


    N.Y.
    Posts : 2,214
    Windows 10 Pro 64bit


    Yea, one advice do not use there live chat they will tell you it's o.k. use it. On phone sometimes i felt i knew as much as they did and was educating them too. As said there most helpful was a ASUS Motherboard tech, he again was baffled and did say, do not use any BIOS updates, but this was 6 months back or more. All in all i am satisfied with there products. This product was purchased in Nov. 2012 so it did come with EFI. Well seems i will have same BIOS till system becomes obsolete.
      My System SpecsSystem Spec

Page 1 of 2 12 LastLast
BIOS Updating
Related Threads
Updating to 8.1 in Installation & Setup
Right now I have just windows 8, and it works fine for me, is it worth it to update to 8.1. If so what's the best place to do it from. And what's the best way to do it. Thank you for your help on this.
Hello everyone, Recently, I updated my HP laptop from windows 8 to windows 8.1. I got critical message from HP Support Assistant asking to update the drivers. I went to HP website, and see all the drivers specified for my laptop. I didnt get which one I have to install. I dont want to install...
Solved Updating to 8.1 in Installation & Setup
I would like to update my OS to Win 8.1 (is currently fully updated 8.0). But with my very slow internet connection, downloading the update (5GB or so I think) would take literally a full day or more. Are there other options for obtaining this update?
Hi There, I just built a desktop with a sabertooth x79 motherboard, and am running Windows 8.1 pro 64-bit. When I click the UEFI BIOS Firmware live tile via the change PC settings>update and recovery>recovery>etc. my computer reboots normally to Windows and will not open BIOS. I have tried...
Updating Win 8.0 in General Support
New (out of the box last week) Dell laptop preloaded with Win 8.0 Laptop belongs to my 40-ish daughter for her business. She freaked at Win 8.0 and wants an XP style UI (I had to change the battery in my pace maker too) I have installed Classic Shell Start (and Classic Explorer) on several...
Just a thought...... Currently we build around 80,000 pc's a year here, with a fairly low attach rate of Nvidia Cards (Geforce G210, Quadro 600 and Quadro 2000D). I was just speaking to one of my Taiwanese colleagues who said their new G210 VGA Cards with a UEFI Bios will not work on Windows 7...
Windows 8 BSoD when updating BIOS in BSOD Crashes and Debugging
Bonjour, I am having a BSoD whenever I try to update the BIOS on my Asus Eee PC 1015PX. I am currently running BIOS version 1301, but version 1401 was released. Naturally, I wanted to update my BIOS. However, whenever I use their utility, it flashes the BIOS .ROM file up until about 35%, and then...
Eight Forums Android App Eight Forums IOS App Follow us on Facebook