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Would BIOS Flashback help? (Q-code 00, CPU LED Red, no POST) Asus ROG strix x99 gaming

I did read so many threads on Q code 00, red cpu led, and no Post. Haven't come across whether it would help to BIOS Flash back the mobo (ROG STRIX X99 Gaming).

Also, whats the worst case scenario if the BIOS flash back DOES actually succeed but did not solve the problem? Would it affect any system stability?

Thank You.
14 answers Last reply Best Answer
More about bios flashback code cpu led red post asus rog strix x99 gaming
  1. What CPU using, and what are the last 4 digits on a sticker like http://www.guru3d.com/miraserver/images/2011/990fx-sabertooth/IMG_4499.jpg ?
  2. Thank you for your prompt response!
    Intel core i7 6850k, Last 4 digits are 0215
  3. Then yes, you have to use Flashback. No risk involved. I'll provide the steps.
    Download the lasted BIOS version from https://www.asus.com/Motherboards/ROG-STRIX-X99-GAMING/HelpDesk_Download/
    Unzip and rename from STRIX-X99-GAMING-ASUS-0801. CAP to STXX99.CAP (if extension hidden, rename only the name, otherwise it would become xxxx.CAP.CAP and it's wrong)
    Save the renamed file on an USB drive
    Connect the drive to the designated USB Flashback port (check the manual to locate it)
    Don't start the board, just make sure that the power supply is connected and on
    Press the Flashback button for 3 seconds
    Wait until the process ends (about 1 minute)
  4. alexoiu said:
    Then yes, you have to use Flashback. No risk involved. I'll provide the steps.
    Download the lasted BIOS version from https://www.asus.com/Motherboards/ROG-STRIX-X99-GAMING/HelpDesk_Download/
    Unzip and rename from STRIX-X99-GAMING-ASUS-0801. CAP to STXX99.CAP (if extension hidden, rename only the name, otherwise it would become xxxx.CAP.CAP and it's wrong)
    Save the renamed file on an USB drive
    Connect the drive to the designated USB Flashback port (check the manual to locate it)
    Don't start the board, just make sure that the power supply is connected and on
    Press the Flashback button for 3 seconds
    Wait until the process ends (about 1 minute)



    Thanks a lot alexoui for your detailed reply. I will execute the steps and post back the result.
  5. You're welcome.
    Yes, please post back.

    The USB drive has to be FAT 32 formatted and please read latest instead of lasted :)
  6. alexoiu said:
    You're welcome.
    Yes, please post back.

    The USB drive has to be FAT 32 formatted and please read latest instead of lasted :)


    Noticed the typo no worries :)

    So yeah, had it formatted in FAT32, done the flashback, kept flashing and reading from the USB, took good little more than 2 mins, until light gone out, I assume it flashed successfully.

    Started the board, unfortunately no post or beep, Qc still ''00''. CPU led still red. Oh man, thats frustrating.

    Any ideas around this please?
  7. Is the 8 pin power cable connected to the motherboard? Does the CPU fan spin when starting the board?
  8. alexoiu said:
    Is the 8 pin power cable connected to the motherboard? Does the CPU fan spin when starting the board?


    Yep, 8-pin cable connected, I'll reseat it now once again.
    And yes, the CPU fan does spin (Cool master EVO 212 Fan).

    More notes:
    -This custom-built pc by pc-specialist is no more that 2 months old.
    -This issue occurred only 3 days ago, it happened suddenly, was working on it, the screen went blank, QCode 00, though PC seems running correctly.
  9. Best answer
    Ahh, I thought that it's a new setup. The Flashback could not help in this case. I suggest RMA-ing both board and CPU.
  10. alexoiu said:
    Ahh, I thought that it's a new setup. The Flashback could not help in this case. I suggest RMA-ing both board and CPU.


    Yep, RMA is approved already, sending it in 2 days, just trying potential solutions meanwhile.
    Anyway thank you very much. At lease the BIOS is updated now! :)
  11. Aborrob said:
    alexoiu said:
    Ahh, I thought that it's a new setup. The Flashback could not help in this case. I suggest RMA-ing both board and CPU.


    Yep, RMA is approved already, sending it in 2 days, just trying potential solutions meanwhile.
    Anyway thank you very much. At lease the BIOS is updated now! :)


    Yeah, it's like new... ready for refurb. :)
    You're welcome.
  12. I had the exact same issue. same board, 32 GB of RAM (2x 16GB kits of Crucial Ballistix Sports-LT), and i7-6850k CPU. I already RMA'd the board and it did not resolve the issue, as installing my CPU back in resulted in same Q Code 00 as before. So I'm guessing both Motherboard and CPU got fried.. I'm going through RMA for the CPU, but is there a point to do USB flashback anyways?

    thanks.
  13. Is it possible to do the bios usb flash without CPU installed?

    alexoiu said:
    Then yes, you have to use Flashback. No risk involved. I'll provide the steps.
    Download the lasted BIOS version from https://www.asus.com/Motherboards/ROG-STRIX-X99-GAMING/HelpDesk_Download/
    Unzip and rename from STRIX-X99-GAMING-ASUS-0801. CAP to STXX99.CAP (if extension hidden, rename only the name, otherwise it would become xxxx.CAP.CAP and it's wrong)
    Save the renamed file on an USB drive
    Connect the drive to the designated USB Flashback port (check the manual to locate it)
    Don't start the board, just make sure that the power supply is connected and on
    Press the Flashback button for 3 seconds
    Wait until the process ends (about 1 minute)
  14. eyalo said:
    Is it possible to do the bios usb flash without CPU installed?

    alexoiu said:
    Then yes, you have to use Flashback. No risk involved. I'll provide the steps.
    Download the lasted BIOS version from https://www.asus.com/Motherboards/ROG-STRIX-X99-GAMING/HelpDesk_Download/
    Unzip and rename from STRIX-X99-GAMING-ASUS-0801. CAP to STXX99.CAP (if extension hidden, rename only the name, otherwise it would become xxxx.CAP.CAP and it's wrong)
    Save the renamed file on an USB drive
    Connect the drive to the designated USB Flashback port (check the manual to locate it)
    Don't start the board, just make sure that the power supply is connected and on
    Press the Flashback button for 3 seconds
    Wait until the process ends (about 1 minute)




    Yes, it is.
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