Asus Crosshair VIII Hero, latest bios, windows boot issue

[ffletchs]

Hi,

I've been having boot issues with the latest bioses, the fix was to run really low DDR/if speeds, like 2666/1333 (have 2 memory kits that are both DDR3600, both 100% working fine, tested with older bioses and different motherboard/cpu)

when I try DOCP windows fails to boot, get the rotating dots but when it initializes the USB devices/switches to logon screen it will crash and boot back to bios.

So I tried to disconnect all usb devices and then the machine boots fine and seems stabel!?

I've verified this,
boot with usb devices (focusrite scarlett usb audio card and usb hub with f.ex xbox wireless controller, sd card reader, bluetooth dongle) windows boot fails
disconnect usb devices except keyboard and mouse = windows boots fine

I reformatted the and reinstalled windows, same issue

Any1 else seen this behavious? think its bios issue? cpu fail? (its a new 5900x)

[polyh3dron]

I'd like to chime in here to let people know that I have also experienced lots of boot issues after updating my Crosshair VIII BIOS and have narrowed it down to two things:

1. You must enable Secure Boot and generate a Secure Boot key if you have has secure boot turned off. I learned this a very hard way.

2. Just because you had a DRAM overclock working great in the previous BIOS does not mean those settings will work in the new BIOS. Go back to DOCP and try to POST, and if that is a success, adjust your DRAM overclock settings one by one to see what gives you instability. In my case, the 3003 BIOS update made my kit of 4x16 = 64GB 3600 MHz Hynix CJR 16-19-19-39 RAM's "Fast" recommended settings from the DRAM calculator were no longer an option and would give me endless BSODs.

[ffletchs]

polyh3dron wrote:
2. Just because you had a DRAM overclock working great in the previous BIOS does not mean those settings will work in the new BIOS. Go back to DOCP and try to POST, and if that is a success, adjust your DRAM overclock settings one by one to see what gives you instability. In my case, the 3003 BIOS update made my kit of 4x16 = 64GB 3600 MHz Hynix CJR 16-19-19-39 RAM's "Fast" recommended settings from the DRAM calculator were no longer an option and would give me endless BSODs.

Thanks, but my main issue is not running dram calculator settings but bone stock DOCP settings, and sometimes not even that. F.ex. running standard DOCP, machine is fine for sometime (1-2 days) then usually during idle it will reboot (not BSOD) and after that it is very hard to get the machine to post to windows, usually it will boot again at DDR 2400/2666. To get it back at DOCP I have to clear cmos or even reflash, its like some setting is setting trained wrong and doesnt reset... Disconnecting usb devices also helps to get it back in windows. During this the machine always posts, but reboots when windows spinning wheel is finishing and its initializing usb devices/switching to the win login screen


I am however now semi stable at DDR3600 (just DOCP profile of the memory) with bios 3003, AND I manually set LLC to lvl 3, disable c-states, idle power to typical, been running like that without issues for ~3-4 days now. I also changed which usb ports devices are connected to, I still feel there is a usb issue with these new bioses/5000 cpu's/or gen4 gfx (i have a 3080), there are lot of threads regarding this on other forums/reddit

[ffletchs]

few hours after posting this I saw the 3003 bios on the support page.

Still testing but having much better luck with 3003, can reliable post on DOCP (ddr3600), didnt have to unplug usb devices, no whea errors. so far looks promising

[1ah1ksa]

Update about ver 3003 i still have 1900 fclk issue

I am just asking where is AGESA 1.1.8.0 ? even if it a beta bios.

[Rimc_LT]

3003 is 1.1.8.0 in BIOS showing it, but my temperature got higher whit it, dont see that new PBO would work nothing similar to advertised undervolting.

[RedSector73]

Ryzen DRAM calculator was made for 3000 series, and it might need tweaking to work with Ryzen 5000. Stick with DOCP and the mods/tweak you have, if that is working for you.

[karmal]

Also I have random reboots with crossfire hero viii ryzen 3950x and 128 gb of hyperx ram at 3600mhz in kit certified by asus the most happens when I turn on the pc or when I'm not doing anything in idle I have docp activated .. someone has tips to make stable the whole?

[wigglers78]

I would love to know how to post to these forums but don't quite see where. Side question, if anyone has tips or a link on that I would appreciate it.

I'm replying to this thread because my issue is similar but not exactly the same. After updating to the latest BIOS (Version 3003 12/07/2020) I am unable to enter the BIOS screen. I can actually post to Windows 10 but cannot find a way back into the BIOS.

Here are some steps I've tried:

• Removed all hardware except one stick of memory and the CPU.
  
• Cleared the CMOS four times (twice from the back button and twice from removing the battery).
  
• Did a BIOS flashback to the latest version.
  
• Put the hardware back and after the BIOS flashback, I can get to Windows but still cannot see the BIOS screen while booting up.
  
• Multiple tries to force Windows to boot to BIOS entry by booting to UEFI Mode that still won’t get there. The splash screen or options to enter BIOS (F2 or DEL) do not show up either.
  

[RedSector73]

wigglers78 wrote:
Side question, if anyone has tips or a link on that I would appreciate it. I'm replying to this thread because my issue is similar but not exactly the same. After updating to the latest BIOS (Version 3003 12/07/2020) I am unable to enter the BIOS screen. I can actually post to Windows 10 but cannot find a way back into the BIOS.

This get you in the BIOS,
https://www.windowscentral.com/how-enter-uefi-bios-windows-10-pcs

You (or powers from other side), enabled fast boot in the BIOS and locks you out of entering the BIOS / appart from the method detailed in link above. By default this feature is off.

[wigglers78]

RedSector73 wrote:
This get you in the BIOS,
https://www.windowscentral.com/how-enter-uefi-bios-windows-10-pcs

You (or powers from other side), enabled fast boot in the BIOS and locks you out of entering the BIOS / appart from the method detailed in link above. By default this feature is off.

I forgot to mention that I've also tried to enter UEFI mode from Windows 10 and it still boots straight through the BIOS.
It does seem like quick boot may be enabled but can't see how to disable that without getting to the BIOS.