Question Problems after X470 Master SLI AC BIOS 3.30

[DackWallace]

Good afternoon everyone,

Yesterday, I upgraded my BIOS of my X470 Master SLI A/C to the latest version, 3.30, which went on without a hitch, but after flashing, the BIOS restarted twice before booting into my loader for Windows and Linux, which it's never done before after previous BIOS updates. Now, any time I power down my computer and cut power, I have to clear my CMOS or else the POST gets frozen at code A0. So I clear the CMOS and reboot, and everything is fine until the power is cut off (the computer reboots fine as long as it's just restarted.) Does anybody know what's going on? I even tried re-flashing 3.30, which made no difference. I'm stuck clearing my CMOS every time I shut off my computer.

Any help is appreciated, thanks.

 

[PC Tailor]

Was there any reason you flashed the BIOS in the first place? Generally it's not recommended unless it resolves a particular issue.

Sounds like a corrupted BIOS.

You're not the only one to have encountered the issue with V3.30
http://forum.asrock.com/forum_posts.asp?TID=11788&title=problems-after-x470-master-sli-ac-bios-330

I would reflash back to previous version.

 

[Fix_that_Glitch]

Ao means the computer handed over the pc to windows. Do you have the os cd? Use the repair and see if that helps.

 

[DackWallace]

That other post was actually me too, in case there are different people on that forum who could help. I re-flashed 3.30 with no change. Is it possible to re-flash the previous BIOS version? It warns against it on the BIOS page:

* User will not able to flash previous BIOS once upgrading to this BIOS version.
https://asrock.com/MB/AMD/X470 Master SLIac/index.asp#BIOS

Once I clear the CMOS, it starts to POST, reboots at POST, and then POSTS again and I can get into my loader (which is on the M.2 SSD), which never happened before the 3.30 update.

My components are:
Asrock x470 Master SLI/ac with BIOS 3.30
AMD Ryzen 5 2600
Gigabyte Geforce GTX 1060 6GB
2x8GB Corsair dual channel DDR4 2666
XPG M.2 2280 PCIe SSD 480GB
Samsung 860 EVO V-NAND SSD 500GB
A shucked 10TB WD Easystore (tried with and without this connected, no change)
Corsair K70 LUX keyboard
Asus ROG mouse

 

[Fix_that_Glitch]

ok try turning off fast boot and restart the computer see if that helps.