Question pc boot up problems. two or multiple attempt before pc boot up from one press power button.

[kahigin]

Is this a powersupply problem? before my pc usually starts with this bios recovery, i enter bios and just save and restart all seems to run okay.
i notice this start up never happen if i did not unplugged my powercord from outlet after shutting down. so i let this happened a few times since i didnt notice any performance issue when using.
this has been going for about a months or year.
sometimes its happens sometimes normal boot up.
then after installing aio and 2 additional ssd. i notice the start up problem is gone so i enable xmp(again). then after a few days this bios recovery starts again. now with power boot up problems
pc takes 2 or 3 attempts before starting up.all lights from fan are on then suddenly turning off takes 2 or 3 tries before booting up

I read some similar solution like resetting bios with 3 pin jumper or reinstalling CMOS battery
before i try these solution i would like to ask for opinions or other solution what i did wrong and what should i do.

specs:
pc is about 7yrs
MB - asus strxi z390e gaming
psu - corsair 650w 80gold PSU
Gpu - rtx 2070

 

[Lutfij]

Does the time in your BIOS show up as 00:00 ? You might want to start by replacing the CMOS battery with a fresh cell.

Please stick to one thread unless you want spaghetti brains.

 

[kahigin]

Does the time in your BIOS show up as 00:00 ? You might want to start by replacing the CMOS battery with a fresh cell.

Please stick to one thread unless you want spaghetti brains.

Sorry about the two thread post..I'm going out now to find new battery haven't checked the time..but since you mentioned it..sometimes my time in window is late and I have to adjust it automatically again.