G434 Issues

Greg_D4791

This G434 is powered by and OEM Asrock Z390 4s/ac.  Asrock did not manufacturer it, it is OEM. But I am having some issues that I think a BIOS flash could resolve. Issues: Post DRAM led stays solid red after post but ONLY resuming from sleep, I have tried s-3 s-4 no avail. CPU Voltage seems to be undervolting in the Current BIOS.  As it is not an Asrock Manufactured board, They do not Support The Motherboard and do not support or Possess a BIOS flash.  (I recommend anyone with a Asrock z390 Phantom Gaming 4s/ac TO NOT update with the 4s BIOS) . The "AC" is a OEM variant according to some dialogues, it is REALLY NOT supported by Asrock.
I have False positive Front panel detection as a mic, I get frequent Boot loops requiring a hard restart. The Wifi adapter settings are showing disconnected even though I have a live connection. 
As Asrock did not Make this Motherboard Asrock does not support it. The "AC" variant is not on their website as supported. Microcenter does not support nor do they possess a BIOS flash for this Motherboard. There is a BIOS update out their 1.21a from an FTP server called iBUYPOWER. This was released in August 2020
Here is some details in the research I did.  I will provide the link and I will upload the BIOS file. Please read and help me to see if BIOS update is feasible. 
(1) ASRock Z390 Phantom Gaming 4s/ac - Issues (does it even exist???) : ASRock (reddit.com)

Just wanted to give everyone a heads up, I was able to locate BIOS updates for Z390 Phantom Gaming 4S/ac on iBUYPOWER's FTP site. Like ABS, they also use the board in some of their rigs.

Looks like the latest BIOS update for this board is 1.21A, released August 2020.

Just flashed it on my rig and it works fine. Not sure what all is fixed. I'm hoping it fixes my XMP problem where the system halts randomly. Time will tell.

Enjoy!

ftp://drivers.ibuypower.com/BIOS
Filename: Z39G4SA1.21A

I decided not to upload the File because it is on the FTP link.
I have tried to have this resolved "the issues" with the PC at the Microcenter Service center but unfortunately they were unable to resolve them on both occasions. Please any suggestions from the community would be great.

Greg_D4791

UPDATE: BIOS vs. 1.21a Corrrected every last one of these issues. BIOS is now reading my Memory and CPU correctly, Also I have no more false positive front panel detection!! PM me if you want the file.