Charlie SIGMA
n00b
- Joined
- Aug 14, 2011
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DISCLAIMERS
Before we start with this tutorial, here are a few disclaimers:
Neccessary Files
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Preparation
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Instructions
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That's it! Now just clear your CMOS, and then Load Setup Defaults.
You should now have a fully functional downgraded Asus UEFI Board.
Please post your experiences.
Cheers!!
Before we start with this tutorial, here are a few disclaimers:
- I assume no responsibility or liability for any errors or problems that may occur by consequence of following this tutorial
- You should make your own independent evaluation before following the steps below, and only really follow them as a last resort.
- This tutorial is NOT for the faint of heart. If any problems occur, the consequence will be, in most cases, a DEAD MOTHERBOARD.
- These steps have only been tested with the P8P67 Deluxe REV. 3.0 Motherboard from ASUS. There is a possibility these steps could also work for other P8X67 boards and even for other UEFI boards (all boards that use BUPDATER on DOS), but I cannot guarantee it will work on any of them
Neccessary Files
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- The Desired bios version to which you wish to downgrade to. [asus download site] [P8P67 Deluxe Download Page]
- Asus Ai Suite II (only Asus Update is needed) [asus download site] [P8P67 Deluxe Download Page]
- AMIFLASH Bios Utilities [download link]
Preparation
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- Install Asus AI Suite. Chose which modules you want installed, but make SURE "Asus Update" is selected. Reboot if asked to.
- Create a folder on your desktop called DOWNGRADE
- Extract the Bios files to this folder
- Inside the AMIFLASH zip, navigate to the folder "amiflash\aptio" Inside you'll see AFUWIN32 and AFUWIN64. Extract the one which matches your OS architecture [very important!!!] to the DOWNGRADE folder
Instructions
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- Open AFUWINXX (XX is your OS Architecture, 32 or 64 bits).
Follow the software's instructions and close all open Applications
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- This is what you'll see when it loads.
You can see it recognizes the bios characteristics
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- Next, click OPEN and choose the Bios ROM file. In this example, I chose 0804
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- If you go back to the INFORMATION tab, you can also see the characteristics of the chosen file
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- Now, go back to the SETUP tab and click the PROGRAM ALL BLOCKS check box. Don't change anything but that.
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- Now, click FLASH. Do not panic if your mouse and keyboard become unresponsive, your computer is NOT FROZEN (at least it shouldn't be), so just BE PATIENT. That's how the software works. Now, the software will flash NVRAM, BootBlock, Main Bios Image and the Non-critical Blocks. It will, however, FAIL to verify the Non-Critical Blocks section. ONLY that section will fail. All of the others will verify normally. Again, DO NOT PANIC. At this point, just click OK and then EXIT the software.
Don't panic, click OK and Exit.
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- Now, load Asus AI Suite and choose Asus Update. Click Update BIOS from file and click NEXT.
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- Now, choose the SAME BIOS FILE YOU USED IN AFUWIN. In my case, that's 0804
This step is more like a failsafe step than anything else.
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- Once it succeeds, say YES and reboot your computer.
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- After you reboot, you'll see the version currently flashed to your board.. In my case, that's 0804
That's it! Now just clear your CMOS, and then Load Setup Defaults.
You should now have a fully functional downgraded Asus UEFI Board.
Please post your experiences.
Cheers!!
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