THANK YOU!!BIOS Instant Flash does not allow downgrading, but the windows update package does. The direkt links to the Windows BIOS updates have been removed from the ASRock website, but the package is still there at http://asrock.pc.cdn.bitgravity.com/BIOS/AM4/A300M-STX(1.20)WIN.zip
Unzip, run asrom.exe. The AMI utility that then gets run will warn you that BIOS layout has changed, you will have to confirm that you still want to update. IIRC there is another prompt to confirm, then the system will reboot and apply the update on reboot.
It worked twice for me but I obviously can not guarantee that this will work without issues.
It's still double data rate, that's what ddr in ddr4 stands for. A single stick works in single channel, so you lose out on the performance of dual channel.So the difference between say 2666 and 3200 is not enough, a single stick of 3200 is always worse that two sticks of 2666 because you lose double data rate?
With the Noctua cooler the machine is virtually silent with M.2 storage.Dear A300 owners! Does this Asrock mainboard emmit noticable electric component noise, like chirping and other high frequency nuisances?
While using the Asrock Deskmini H110M-STX board on my desk for almost two years, the noise by the mainboard was quite prominent, while its succeeding mainboard , the Asus H110S1/CSM itself remains pleasantly silent and the Noctua on my i3-7100 is near inaudible at 800 rpm anyway.
All RAM should at least default to JEDEC specs:I read that 10 times and have no idea what you are actually saying.