Having CSM disabled is supposed to help boot times but you need to do that before installing the Op system.
I bought the ASUS ROG Crosshair VII MB/2700X because of all the issues I had with the ASRock X370 Taichi/1700X system which I had to have a few days after it's release! I hoped that the second generation of the Ryzen stuff, especially with the AOG premium MB, would have put most of the problems in the past. I suppose it has except for the following:
The 2700X system takes ~45 seconds to boot to the first W10 splash screen. Task Manager>Startup says "Last BIOS Time 23.5 seconds".
The 1700X system takes ~27 seconds to boot to the first W10 splash screen. Task Manager>Startup says "Last BIOS Time 17.6 seconds".
By comparison, I have several ASRock Extreme6/4790K systems that boot to the W10 splash screen in ~15 seconds. Task Manager>Startup says "Last BIOS Time 10 seconds".
All of the systems have the latest BIOS's and are running the latest version of W10 Pro.
The 2700X is set to a 42 multiplier with pretty much everything else on Auto. It has 2X8GB of the G.Skill FlareX memory ( F4-3200C14D-16GFX) installed using the automatic MB "XMP" settings. The system runs Handbrake to convert Bluray disks to MP4 files and is very stable.
The 1700X system is set to a 38 multiplier with a Vcore of 1.36V. Everything else is on Auto. It has 2X8GB of EVGA 3000-15 memory installed that the MB sets to 2933-16. The system runs Handbrake to convert Bluray disks to MP4 files and is very stable.
So...what the heck am I doing wrong with the 2700X system that is takes ~45 seconds (most of that time is spent by the BIOS doing whatever) to boot. Help would be appreciated.
All I see on the ASUS ROG Crosshair Hero VII site is Bios version 0804. Where are you looking?