Videos
ROG CROSSHAIR VIII BIOS 3904 / 0504 released 2021/12/15 compiled 2021/12/14
Changelog:
-
Update AMD AM4 AGESA V2 PI 1.2.0.5
-
Improve system performance
Tested over night with variuos stress test, voltages are lower than previous version, PBO and CO are updated with a different behavior, if EDC >140A the vcore is limited, you need to use a positive offset to adjust svi2tfn values to match VID. I suggest to find again the CO values per Core and PPT-TDC-EDC values. Set PBO and CO in AMD overclock section, not the one from ASUS extreme tweak, it gives use better result.
UPDATE: due to people asking for test and etc. here it is a link of Overclock.net thread about C8 series, there are many user who can explain everything better than me about what is changed and how to OC now.
SMU Update
Crosshair Dark Hero VIII and 5950x build running without a crash for all of 2023. After upgrading from BIOS 4602 to BIOS 4702 the BSOD's immediately started. Page fault in nonpaged area, IRQ less than equal, among 4-5 other causes. On average there's a crash every few hours.
Just some of the things tried:
Rolling back BIOS
Load optimized defaults
Fresh W10 install
remove all unnecessary devices and hardware
different cables, reseat CPU
This is classic faulty Ryzen 5000 behavior, except the thing was running well for years before this specific BIOS upgrade. I'm over Asus, all the grumblers these past years were right.
Hi all asus master people, i was asking myself if it is worth it upgrade from bios version 3601 to 4201, and if it is worth should i go by step or can i safely upgrade directly to the latest with no issue? I'm not having particolar problem at the moment with the 3601 just some freeze sometime that i don't even know if they come from the mobo firmware at all.
Thanks to all people that will help me.
ROG CROSSHAIR VIII Series 4201 BETA BIOS
-
Update AGESA version to ComboV2PI 1207.
-
Improve system stability.
Overclock.net forum
EDIT: it's out now on ASUS support site
EDIT²: The beta is now the latest OFFICIAL BIOS
Just in case anyone was thinking of upgrading their am4 crosshair viii dark hero board to bios 4805 that released a few days ago, it breaks the ability to control the board LEDs such that ‘off’, ‘black’, ‘dark’, etc. is bright green. Breaks any aura designs you have that include the board. A few stock ones work but almost everything resolves to static bright green.
I downgraded back to 4702 and the issue was completely resolved. Just wanted to post it because I didn’t see anyone else who struggles with obsessive compulsive tendencies post about it on any of the boards I read.
I hope this helps someone
After the logoFail vulnerability was disclosed I downloaded the latest BIOS (4702) for my mobo. Used the EZ Flash inside the BIOS to update, which seemed successful, and then continued with the restart when prompted. However upon restart my system seemed to hang indefinitely with the mobo error code d6 which is "no console output detected." I pressed restart after waiting quite a few minutes and my system seemed to boot fine except it completely skipped the Asus splash screen and went directly to Windows. This concerned me so I attempted to restart and enter the BIOS to no avail. Spamming the delete key constantly from the moment of restart till the Windows login screen appeared did nothing. I tried using the advanced startup options to restart directly into the UEFI but it still boots directly to Windows. I then used the mobo BIOS flash button and a thumb drive with the new BIOS on it to reinstall it, just in case the install was botched, but after the BIOS reinstalled I still have the exact same issue. Any help would be greatly appreciated because my anxiety is about through the ceiling. Thanks.
Edit: Solved
Ok, this was extremely weird but just in case anyone else has this problem and nothing else works try this if you have an Nvidia card.
1 - Go to:https://www.nvidia.com/en-us/drivers/nv-uefi-update-x64/
2 - Download the file there and run it and if a firmware update is needed let it update it.
3 - Restart your PC and see if you get the normal splash screen and are able to access your BIOS