Question Bios, Asus Z170-A, Celeron G3900

[guramive]

Hello,

Dear Friends, wish u a happy new year
Have some issues with my system, Build contains
MB: Asus Z170-A
CPU: Intel Celeron G3900
RAM: Corsair LPX 8GB 3200MHz
PSU: DeepCool 750W
GPU: Gigabyte Aorus RX 580 8GB

so the issue is that when I am turning PC it goes to Bios and do not load windows until I manually select SSD with OS still have only one of it no more HDD or SSD besides that.
now, what I tried so far,
Another RAM in several slots single/dual,
also replaced GPU and Tried without,
Updated BIOS
Reset to default settings by removing the battery for 1-2Min+
Tried different Storage, I mean SSD/HDD and so on, still the same,
Also tried and replaced Battery on MoBo.

Any ideas what it can be?

Thanks in adcance.

 

[RARRAF]

well if you are selecting HDD/SSD to boot from and saving and exit in the bios then the only reason it is not saving would be the bios battery has gone flat only 1-2 pounds hope this helps.

 

[guramive]

well if you are selecting HDD/SSD to boot from and saving and exit in the bios then the only reason it is not saving would be the bios battery has gone flat only 1-2 pounds hope this helps.

Oh, I forgot to mention it it was a bit ago so I forgot that, I replaced the Bios battery too.
Thanks mate for your response