@dragonsun252 - For non-brick safety, best to use UEFITool 25.0 or UEFIReplace 25.0 if using UEFIPatch, otherwise sometimes critical padding are removed or changed in some BIOS on rebuild (sometimes in volume you don't touch too).
You can see what I mean if you compare side by side BIOS stock/Mod in UEFITool NE Alpha 51, look at Parser tab on bottom and note the pad and or Non-UEFI data differences mentioned
Sometimes this is OK and does not = brick, but often it's critical and = brick if any padding changed, added, or removed. So I always check side by side before/after with UEFITool 51, and make sure parser matches in this regard
AND any volume I edit in specifically too, scroll up/down on each and make sure padding are same (none added or removed), they do not always show up in parser and sometimes it's ones that are not in parser that cause issue too.
I mention because I noticed this issue in your BIOS at #16, but I didn't see until after he had flashed, luckily in this case it was OK

And thanks again for helping on this for users

@Lost_N_BIOS Thank you for this. I will go back and take a look tonight. I was using an old UEFI replace (and ubu and a few others) I'm Updating today but I and UBU are having words LMAO.

Good to know about also manually double-checking it and yeah I am learning to make much cleaner edits and BIOS's thanks to you :)

@seevolas , To install Big Sur, Requires a fresh format "type depends on drive and drivers loaded" and CSM disabled "In most cases"
Check EFI\CLOVER\drivers\UEFI folder for proper Filesystem support. :)

@dragonsun252 I have got the ASUS X99-A II board, could you also help me to have the Mod with MSR and NVME Patched on it? I also need to upgrade my existing Catalina to Big Sur. Or, give me some advice how to mod the current BIOS?

Millions thanks

@dragonsun252 I am using x299 deluxe II. The BIOS generated by myself cannot complete the installation of bigsur. I always restart in the second stage of the installation. Could you help me generate a bios.

@fitman33, Sure thing. More practice on these for me. It will be a day or so tell I can get to it.

@cqllzp I don't think I have any X299 Asus on hand to test myself with so it may take an edit or two to get it working. I can also have a base one out for you in a day or two :)

It is great to me that you can help. You are the best!!

Zitat von dragonsun252 im Beitrag #27

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@seevolas
Here is an X99-A Mod with MSR and NVME Patched.
http:// s000.tinyupload.com/?file_id=08367498153436312976

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@cqllzp do you really mean x299 deluxe II? Not X99 Deluxe II? Thats‘s the one I am using. I would be interested in a patched bios for that one as well. But atm I got enough problems with catalina so I cannot really try big sur.

@dragonsun252 Can you help with a modded bios for X99-S ? I think it is similar with X99-A . Thanks!

@latzease Yes, had life come up but I am working through my backlog ATM. Can you drop a link to the stock BIOS PLZ?

@NEOSoftWare https://www.asus.com/us/Motherboards/X99.../HelpDesk_BIOS/ and to confirm you're on ver 1201.

@Iluvatar0 What issues are you having? also specs and a dump of EFI and PCI tables, ACPI?

I think I am going to make an X99 Asus thread for this later to cover multiple boards.

@dragonsun252 you can download it from here tinyurl.com / y4h79tcm

@dragonsun252 I am using stock X99-II BIOS v2101

Thanks for your great support!!

@dragonsun252, I have this BIOS and nvram does not work for me, help me please

Here is the patched bios for Asus X99-S Motherboard, version 3801, with microcode and lan driver updated

http://s000.tinyupload.com/index.php?fil...851768625553316

Can you latzease make patched bios for asus x99 deluxe ii v2101?

Would really appreciate it