Finally set the Mobo in the test Bench for the test run  and it Post right the way!!It came with BIOS 1.04, so what I have done set up Raid array and install Window 10 so far so good!!then I went back to the BIOS to update to newer BIOS 1.07 which one update without an issue but System failed to boot in to the Window, what?? So I went to the BIOS to chk the boot order and found only Samsung NVME 960 but no sign of Samsung 850 Pro!!! It has shown under ADVANCE SATA CONFIG but unavailable in the Boot order. I have done clr CMOS, load default but no go....I did installed  Window again in the Samsung NVME 960 Pro but don't understand why this is happening?  

bdary
You could try removing the 960 for now and see if your 850's get recognized by Windows Boot Manager.  If that works and boots into Windows, then reinstall the 960.

I believe it has something to do with new BIOS and I am wondering  if anybody experiencing the same? 

bdary
When you flash a new BIOS, don't you find that all the settings you had set for your raid in the old bios are now back to defaults with the new flash?

+1
 
Did you switch the bios selector to bios 2 or 3 for the re-flash? When you upgrade the bios all settings get set back to default. You should also be doing a clear cmos before and after the bios change. This is why doing raid setups onboard suck.
 
If you kept flashing bios 1 then you have nothing to fall back on to retest between the previous and new bios

Here is missing

rjohnson11
I don't think its missing. I think it is just in another area of the BIOs. Engineers love to change things in the BIOs. People like us have to relearn the new BIOs.

No it did appear or disappear in the same place under same setting.........