is the 1.21a the newest bios version for the 4s/ac? I found on reddit someone posted a 1.20. I am looking to update bios and like you said its nowhere on asrocks website and microcenters.
I tried both the 1.20 and the 1.21a, and a 3rd 1.3 that I found. both the 1.2x boot up with ASROCK in the logo screen, but the 1.3 version boots up with 'powerSpec' in the logo screen. My question is: in the version that you are using can you trun off the XMP2.0, I have found that it will eaither be set to auto or profile1.
What version are you using and can you turn it off?
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