Boot order messed up Every time

[sjaakvg]

Boot sequence scrambled (boat order all messed up)

The boot order of my Asus Z97 Deluxe motherboard is getting mixed up, when I boot the PC one of five times gets over in auto repair what is not possible because (I now found out) the boot sequence is scrambled. Now I know what to do and that is to look in the BIOS for the boot order, again this wrong the first was the Western Digital HDD storage. After I changed it again and COULD NOT save settings (you have not made any changes to the BIOS settings) PC just started again quickly.

I Googled and this is not a new problem, there are proposed several possible causes or solutions; eg

1st reset CMOS memory. (don’t know how on my MOBO
2td Remove the battery (is reset) and replace the security. (which I did)
3th Make sure all cables are connected properly. (I did)
4th It can also be a starting failure of the SSD with Windows on it ( It seems to be oke)
5th May also be voltage off memory module (don’t know about this)

Windows is fresh installed en updated

Does anyone know how I can safe the settings again of the bios?
THANK YOU IN ADVANCE

sorry for my english

Windows 10 Pro x64bit (legitiem)

Case: Fractal Design Define R5
MOBO: Asus Z97-Deluxe ATX LGA-1150
CPU: Intel Core i7-4790k
CPU-Cooler: Scythe Mugen 4 PCGH
RAM: G.Skill DDR3 Ripjaws-X 2x8GB 1600MHz
PSU: Corsair RM series RM750
GPU: Asus Strix GTX970-DC20C-4GD5
SSD: Samsung 850 Pro Series 500GB (Windows)
SSD: Crucial MX500 500GB
HDD: WesternDigital WD40EZRZ
HDD: Seagate ST4000DM004

Keyboard: Logitech Illuminated K740
Mouse: Razer DeathAdderElite
Mousepad: Steelseries
Headphones: Steelseries
Speakers: Creative
Monitor: Iiyama ProLite GB2773HS