Intel® Desktop Boards
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Where do I find the .BIO file for Intel® Desktop Board DX58SO2 to recover a failed BIOS update?


Tried to do a BIOS update and it froze. I am attempting to do a recovery, but I am not able to find the .BIO file that is required in the directions found here: Desktop Boards — Instructions for Recovery BIOS Update

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Thank you!


Hi All I do the the instruction and it dont work first a red del flash I stop all after long time I remove the bio jumper I put a .bio version on a usb key (I am not shure is a good version) with no bio jumper the red light dont flash is a green led flashing and stop flash and a blue light flash after some time the computer dont stop by itself like instruction say and after the green light resart flashing and always repeate that way. Where i can find a good last .bio and wicht usb 2 or 3 i connect the usb key???? Please someone help me and thanks.

Super User Retired Employee

Here are my detailed instructions for the process:

  1. NOTE: Read these instructions completely before starting. Follow all instructions EXACTLY.
  2. On some other Windows-based PC, download the .BIO file for the BIOS release you wish to install.
  3. Insert a 32GB or smaller (the smaller the better) USB 2.0 flash drive into the PC. Do not use USB 3.0 flash drives (most are not compatible). It is also better (though not required) to use a flash drive that has an access LED that you can watch.
  4. Format this USB flash drive using the Windows Format applet. Specify to install the FAT32 file system (Important: NOT vFAT, NOT exFAT; FAT32 only). You must also specify that the Quick Format option be Disabled (unchecked).
  5. NOTE: If FAT32 is not offered as a choice by the Format applet, your flash drive is too big; use another.
  6. Copy the .BIO file into the root folder of this USB flash drive. This should be the only .BIO file in the root folder of the USB flash drive.
  7. Properly eject the USB flash drive. Do not just yank it out. Do this from File Explorer or using the Safely Remove Hardware and Eject Media System Tray applet.
  8. Power off the Desktop Board system.
  9. Remove the yellow BIOS Configuration jumper from the board. It will be the only yellow jumper; the rest will usually be black.
  10. Plug the USB flash drive into one of the black USB 2.0 ports on the back panel of the board. Avoid using blue USB 3.0 or Yellow USB 2.0/3.0 charging ports. Also avoid using front panel USB ports.
  11. Power on the system.
  12. The BIOS Recovery process should start automatically. You should see a progress report on your main monitor.
  13. NOTE: If you do not see a progress report displayed on a monitor, do not power off the system for at least 15 minutes. While it is rare, it is possible for the process to proceed without an onscreen display; you must give it ample time to complete, just in case.
  14. When the BIOS Recovery process is complete, you will be asked to power off the system. Do so then.
  15. Restore the yellow BIOS Configuration jumper to the pins it was on previously. This should be across pins 1 and 2 of this (three pin) header.
  16. Remove the USB flash drive from the back panel of the board.
  17. Power on the board.
  18. Immediately begin pressing the F2 key, over and over (approx. once per second) until you see a BIOS Setup (or Visual BIOS) screen displayed.
  19. Verify, using the BIOS version string, that the BIOS installed properly. Stop if it isn't.
  20. Press the F9 key (followed by the Y key) to reset of the BIOS configuration.
  21. Press the F10 key (followed by the Y key) to save the BIOS Configuration and exit BIOS Setup.
  22. Once screen is cleared (goes black), begin pressing the F2 key, over and over, until you see the BIOS Setup screen displayed.
  23. Make any changes to the BIOS configuration that you desire (for example, disabling NUMLOCK) or that you require (for example, setting Boot Order, enabling UEFI, etc.).
  24. Press the F10 key (followed by the Y key) to save the BIOS Configuration and exit BIOS Setup.
  25. Test.

Here are some additional thoughts:

  • If BIOS Recovery will not start, try using a different USB port. You can try using the blue USB 3.0 or yellow USB 2.0/3.0 ports as well if no other choices. You can also try using front panel USB ports.
  • If switching USB ports didn't work, try using a different USB flash drive. Remember that all USB flash drives must be reformatted at least once using the process described in Step 4 above.
  • As always, it is helpful to use a USB flash drive that has an access LED so that you can visually see if it is being accessed.
  • If you are seeing USB flash drive being accessed but BIOS Recovery does not start, a common cause is compatibility with the memory present. The BIOS Recovery engine, as it is with USB 3.0 flash drives, can be very picky with regards to memory compatibility. Try removing all but one DIMM/SODIMM.
  • For more information on the BIOS Recovery process, consult Intel Desktop Boards Recovery BIOS Update Instructions.

Hope this helps,