@LNewt3 & FrankOlsen1:
Is your CPU overclocked or not? I tried a few things to get my X99S MPOWER setup working with 1809 to no avail (modifying BIOS and mcupdate_GenuineIntel.dll). In the end 1809 just doesn't like overclocking when using a X99 chipset.
Running with stockspeeds, I have no problems upgrading to and running 1809; it's only if I overclock (OC Genie or manual overclocking) that my MSI system is hanging right after booting...
So I wonder whether build developer preview 1904 really fixes this problem or maybe that you guys just reverted back to stock speeds by accident?
Writing from an X99 ASRock on 1809, no issues..
The MSI is off now, but I'm pretty sure that there was no overclocking; I'll recheck tomorrow.
Revert to stock speed, at least I can't remember having done that.
I can't do anything now being on 1904: maybe someone else can try reverting to stock speeds to see if they can get around this issue.
As I said the Developer's Release does bring some bugs, so staying on 1803 is surely better, but being on the Developer's (slow cycle initially) I couldn't get back to 1803 without reinstalling which I did not fancy.
I could only deactivate updates for 7 days at a time before it tried again (using most of my super ADSL BW of 10 Mbits/s, please come to us fibre optics...). And failing.
Brgs, Frank