Just updated mine via USB Drive from within Bios itself, 2023 G814JZ, went from .317 --> .329, no issues installing & posting to Windows. Also updated the Audio Driver, Intel SST (Bluetooth LE Device in Manager threw an error after updating Bios), & Asus System Control Interface to 3.1.32. Haven't ran anything intensive yet, so fingers crossed.
Bios was able to initiate a restart succesfully as well after installation, so I thought the Restart error I have was eliminated. However when I updated the Audio Driver, and it prompted to restart to complete installation, the notebook once again only got as far as the Asus Rog splash screen and remained there (with a blinking orange battery indicator light). Hard shutdown, booted, posted to Windows, Start Menu-->Restart-->Asus Splash Screen-->Stuck with blinking orange battery indicator. ¯\_(ツ)_/¯
Edit: Some stats after a few hours of usage on .329 (Keep in mind I went from .317 directly to .329)
Tested - RE4, Elden Ring, FF7 Rebirth - 2560x1440p, 42" C3 at 120hz, games at near max settings, capped at 80fps via Nvcp.
HWiNFO - Max observed VID across all cores - 0.998V, Max Cpu Temp observed - 74c, Max Clock reached across all cores - 3.6ghz
Throttlestop Settings - -130mV to Cpu Core, PL1 55 & PL2 157, Ratios at 50x (These were the same settings I had on .317 prior to updating to .329)
On Bios .317 (and in the same scenarios in-game on the titles I listed above) VID would get up to 1.4V, cores thermal throttling was a guarantee at 86c on average, clocks would reach 4.5ghz+
Those stats are probably nothing new to most anyone here who has been updating the Bios on a regular basis and observing the changes across revisions, and a few hours of this 'testing' i'm describing doesn't say much for stability/confirmation of differences over time, but it's quite a stark contrast in my case. I'm also not implying this .329 includes some form of the upcoming microcode fix, rather that a change to performance values has certainly been made (if not in this .329, then at some point across revisions).
Edit 2: After starting a new Windows session hours later, Cpu performance is back to what it was before, running up to the 50x multiplier set in TS, Core VIDs reaching into the 1.3XV range. It seems for some reason on the previous session (after updating Bios to .329), the Cpu was locked to a 37x ratio, which naturally resulted in lower temps & VIDs. It's odd that occurred, despite Throttlestop running as normal, an odd bug of sorts.
