Crosshair Impact VIII BIOS 5302 - USB (mouse) stuttering issues

[Daylight_Invade]

I recently upgraded (stupidly) from BIOS version 5101 to 5302. In doing so, I ended up having to totally reinstall Windows as it would not activate due to a TPM issue. On top of that, I have awful mouse and visual stuttering issues which did not exist before (during periods of high disk activity). Even before blowing my windows install to deal with the TPM issue which could not be resolved, the mouse and visual issues existed.

I see a locked thread where an ASUS Crosshair VIII Hero user is complaining about the same thing, but keen to see if others have found a solution. I'm going to try and downgrade back to 5101 and see if that resolves things. Strangely I don't see any issues in my Windows Event Viewer logs which is in contrast to the user complaining in the other thread. I am also shocked that Asus seems to lock threads fairly quickly as it would have made sense to keep posting there considering the Hero and Impact are very similar boards.

Motherboard: Asus Crosshair Impact VIII
Platform: X570
Processor: 5950X

[snizzles]

I thought I was going crazy. Games are unplayable on 5302. I was going to chalk it up to the ftpm issue not being fixed and have a discrete tom arriving this week...however I will likely be downgrading bios to 4902 like another user did in the other thread. I appreciate Asus is still pushing updates on a deprecated platform but this is unacceptable for their top tier motherboard.

[Daylight_Invade]

5101 does the same thing for me now (I swear it did not before). I will try 4902 as I am still having very strange problems.

[snizzles]

Do you have anything else changed from default BIOS settings? After more tinkering last night I discovered PBO was causing a LOT of the stuttering (similar symptoms to the fTPM big where things are fine and then stutters for 2-3s). 

[Daylight_Invade]

I've always had PBO on (but not CO).

Interestingly 4902 seems a lot better. I'm not saying it is perfect, but it is a marked difference.

[Kratos89]

I can confirm the problem, since I updated to 5302 a few months ago, my mouse also freezes for 2-3 seconds when the machine is doing more work, if there is no load it doesn't do it, but the problem is not continuous. 4902 was no problem. My motherboard is Dark Hero. But it's also interesting that if you update it, it won't solve the problem completely either, it shouldn't have been updated in the first place. I already regret doing it, you always have to be careful with BIOS updates, you never know what surprises you'll get. Let's hope ASUS will fix this problem in the next update. But as I read in that closed forum topic, many people complain about USB handling problems too, so there's a beloved package from ASUS.😬

[Daylight_Invade]

I think it has been pretty good. I've turned off PBO (Except via Ryzen Master) and I've seen no real issues. In fact things do feel back to normal using 4902. I do notice that BIOS flashback does not work when you go to this version, but that is a minor issue. I was able to apply the BIOS and the Agesa version did roll back (contrary to a thread pointed to from here on Reddit where the user tried to claim that the Agesa version would not roll back).

For the moment, 4902 seems to the best option, although with these TPM fixes, clearly we should be using the latest version (if it worked correctly).

The Reddit thread I am referring to is here: https://www.reddit.com/r/pcmasterrace/comments/1paubh5/asus_x570_5302_bios/

I am going to report back to support my experience (I have a ticket open with them now, and really everyone else experiencing these strange issues really should do the same).

[Kratos89]

I'm definitely not going to reset it to 4902, I'd rather stay on 5302, and then ASUS will release a Fixed BIOS update in a few months, which will hopefully eliminate these problems and nothing else. The situation isn't that bad, except for this bug.

[Daylight_Invade]

It’s a pretty bad bug from a visual and usability perspective. I have a feeling it would definitely impact gaming performance and general USB performance.

For me, I’m prepared to go back to 4902 and wait for an update. For whatever reason I never noticed it on 5101 until I downgraded from 5302. Regardless I think it’s too distracting and annoying each time the machine is working hard and my mouse effectively becomes unusable.

Also the TPM issue caused me to have to buy a new Windows key (going to 5302). Clearly something is not quite right.

[Daylight_Invade]

I think I have figured out what is causing the mouse behaviour. I believe it might be related to API calls behind the scenes calling the TPM. Specifically, because 5302 seems to impose bitlocker, and I also use software like 1Password. Any time anything causes a lot of TPM activity (strangely I think another piece of software is ironically Ryzen Master), the mouse scrolling goes completely laggy.

The latest release of Windows 11 (25H2) with the 5302 bios seems to impose bitlocker on all drives going forward, especially a fresh copy. When things settle, the behaviour stops. Only opening certain apps like 1Password causes the problem to manifest again.

For what it is worth, a fresh W11 25H2 along with 5302 seems to guarantee you get the new certificates to support secure boot so you won't get boot issues post June 2026 when the current BIOS certificates expire. This is just something to be aware of. 🙂