Question Pc doesn't post until reset

[VonMatt]

Built my first pc and having issues with post. Whenever the pc has been offline for a while the pc won't post nor i get any sound that indicates what the issue is, until i manually press reset on the case and it posts and boots without issue. Everything on the build is new but the psu ( was working totally fine on my old pc) and hard drives (boot ssd is new). already tried taking xpm off, fast boot off, changed cmos battery to my old pc one, took the whole build apart and rebuilt it, and i'm running out of ideas what could it be the issue, and it is a slow troubleshoot as well, since if i turn it on after a couple of minutes i turned it off, the pc will boot with no issue. Any help or ideas will be apreciated

CPU: Ryzen 5 3600
Motherboard: gigabyte b450 gaming x
PSU: Antec earthwatt 650W
Ram: Kingstone 16 gb 3000 mhz
GPU: Nvidia Gtx 1650

 

[francesco.tintori93]

I'm having a similar problem where only after a bunch of time spent in sleep or hibernation the PC will basically shut off and I don't get any video signal off of my GPU. In my case the BIOS stops detecting the GPU but I can still connect my monitor directly into my mobo and see that the PC has booted with the integrated graphics. Maybe it's something similar, do you see your PC turning on (lights / fans / mobo LEDs) but no video signal? Some things that I've read to try are also to make sure the BIOS is updated to the last version, and to look into the deep sleep settings both on BIOS and windows. Take it with a grain of salt cuz I'm no expert, but but windows sleep settings might have something to do with it (for example try removing the hybrid sleep, or see if it only happens in either sleep or hibernation). Hopefully this can be useful and someone with some better knowledge can help you (us) out.