Question My PC only works when i turn it on second attempt ?

[samohateee]

Hello, this is my first build and I'm building it alone, so i don't know what's happening.
After i finish build my pc, i turned it on, all parts seems works but motherboard on with orange light then monitor gives no display and keyboard's light off. And i directly turn the pc off then start again, this time it goes to BIOS with message "The system has POSTed in safe mode" and i see all pc parts detected and i only can boot to windows manually from BIOS.
Turns out every time i turn it on for the first time, it is always the same, all parts work with only the motherboard on with orange light, then i force shutdown and turn it on again and it goes to BIOS to boot the windows.
My build:
Intel I7-10700F
Asus Dual EVO RTX 2060
Asus TUF Gaming Z590 Plus WIFI
Corsair DDR4 Vengeance LPX PC25600 16GB (2x8)
Samsung 970 EVO Plus 1TB
Noctua NH-U9S
Corsair 4000D

How do i solve this? so i can boot to windows directly.

 

[lvt]

Did you try to boot the machine with just one RAM stick?

 

[samohateee]

solved, i dont know why but disabling xmp solve the problem.

 

[lvt]

solved, i dont know why but disabling xmp solve the problem.

Yes it seems like a RAM issue, on most of mobos if you remove the RAM sticks the XPM profile will reset and you will know that's the issue.