X370 ITX/ac 4.70 UEFI (AGESA 1.0.0.4) released:

1. Stuttering/throttling of CPU/GPU

2. They also added GPU overclock options with normal frequency and voltage fields in OC Tweaker, I tested and it works wonders.

*They also fixed the rear USB 3.0 ports connected to the CPU/APU not working (they broke them when using the 1.0.0.2 beta UEFI)

Not fixed:

Chassis Fan 1/W_PUMP RPM drops between 700-1000 RPM when setting control mode to "DC Mode" from "PWM Mode"

M.2 drives still appear as removable drives in Windows (safe remove icon)

Setting the SATA controller to disabled will not actually disable the SATA controller, HDD will still be detected in Windows

Possible bugs that have not been fixed:

SATA ports have priority over M.2 slot (try to install Windows 10 when you have a PCIe M.2 drive and SATA drives also, and your M.2 drive will be listed last when selecting the Disk on which to install Windows), it will also be listed last in all utilities that use the numbering the UEFI assigns to disks.

M.2 should always be treated by the UEFI to be Drive 0 (when only one M.2 slot, if two slots then Drive 0 and 1 and so on for how many M.2 slots are present)

But how can you fix these when you cant even fix the damn M.2 drives to not appear as removable drives within Windows and having a dammed safe remove icon for it, that ironically tells my It cant eject the drive.

10 out of 10 for ASRock for managing the impossible 

More to come

Cheers

Samsung drives use their own driver that removes this issue, but drives that use the default Windows nvme driver will exhibit this issue, but again this started happening after the 4.50 UEFI update