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hinch said:

Note to self don't mess around with bios's when you already have a working PC - and tired AF. Just updated the mobo with the latest ASUS 4021 bios and spent hours figuring out why my PC wouldn't post, with black screen (FU!). Tried resetting CMOS, and different DP ports, HDMI, reseating GPU's into different slots, using single slot ram to no avail.

Finally managed to get it working again (by a lot a trial and error) by doing all the above and changing output to HDMI.. lol. Totally not worth it the hassle. Thought I bricked the thing and the worst thing is no flashback or USB flash or dual bios to land back on! Never again. Definitely a case of if it ain't broke, don't fix it xD

Yea pretty much. BIOSes can be all over the place. The main thing I found is that the BIOS updates work best with the configuration of that era. So with X370 in my old system worked fine with 1700x CPU. But when I upgraded to the 3900X, that's when urghhness started to happen since I needed to upgrade BIOS as well in order to receive support for 3000 series. Basically 9/10 times, it just wouldn't boot until it went into it's "crash free BIOS" mode. Eventually after tinkering around with it, I found that it was cause for some reason, the RAM timings were causing the problem. I set the RAM timings to manual, boom, no issues after that. Like the weirdest thing ever.

Of course, this is gonna get even worse with the launch of Windows 11 as I am sure there will be BIOS and chipset updates to get Windows 11 working sufficiently. Overall though, it's better to spend the extra money on BIOS flashback cause it could save you a lot of headaches lol.