I've posted about this problem before. I've been digging around trying to duplicate the problem forever. Over a year certainly. Can never pin it down. Game hiccups for a sec, might do it twice in a row. It seems to manifest itself in AH more than any other program I use. It would affect my controls mostly. I'll see a micro pause on the screen and my controls would get screwey. Most often my throttle and RPMs would go to half. I have a CH throttle and Logitech quadrant for those. Worst of it---I'd get that controls unmapped thing. REALLY annoying during a frame of FSO. This problem seemed to evolve over time. It started as a slight glitch to that unmapped thing. I've read about USB dropouts with X570 boards (which I have) but this isn't really happening. I get no actual disco of USB. Nothing shows in USBeview. Nothing in windows error logs. Really hard to pin down or duplicate. Pulling my hair out over it. I've updated my BIOS with each revision and that's where I think the evolution of this problem is tied to. It got worse each time until the most recent BIOS and now it's back to the just moderately annoying burp and throttle/rpm thing. Moderately tolerable but it'd be great if it'd just stop!
I'm on a google hunt the other day looking for bread crumbs. I run across this:
https://www.tomshardware.com/news/amd-issues-fix-and-workaround-for-ftpm-stuttering-issuesCheck the short vid on the page. This is EXACTLY what's happening to me. Stupid little hiccup. I have an ASUS X570-E mobo. Apparently it's some memory thing with the TPM chip. Which explains why I never got anything that rhymes with an error or disco. I never had TPM enabled in the first place. The latest BIOS I'm reading, has firmware TPM (fTPM) that's included on the CPU enabled by default. Checked my BIOS settings. Sure enough, it's enabled now. I'd read it'd be better to use a discrete chip and use dTPM so I grabbed one of those. Haven't installed it. Because since then I'd read that the fTPM setting in this new BIOS will reset itself to enabled after a reboot putting it back to fTPM instead of dTPM. Brilliant! It's a getting ready for installing Win11 thing. Which is also not imminent with me. I just want this micro pause thing dead!
Anyway, just passing this along in case anyone else has an X570 board that acts a little funny. I've been searching for clues on this for a while.