Question Newly built PC fails to boot only at first startup of the day ?

[LabrieD]

So I recently rebuilt my PC with almost entirely new parts save for the storage (3 SSD's + 1 HDD) and OS and it's been failing to post only the first time of the day I start it up (VGA & BOOT lights). If I restart it, everything boots perfectly fine it runs everything excellent afterward even if I shut down and boot up again.

Specs:
CPU: AMD Ryzen 7 9800X3D 4.7 GHz 8-core
Cooler: Thermalright Phantom Spirit 120 SE
Mobo: ASRock B650 Steel Legend Wifi ATX AM
RAM: Corsair Vengeance 32 GB (2x16 GB) DDR5-6400 CL32
Storage: Western Digital Black SN850 1 TB M.2 (Hosting Windows 10 Home OS)
Samsung 970 EVO 1 TB
Samsung 860 EVO 500 GB
Seagate BarraCuda 4 TB Internal HDD 3.5 Inch
GPU: XFX RX-79GMERCB9 Radeon RX 7900 GRE 16GB
PSU: be quiet! Pure Power 12M 750W 80+ Gold Certified
Case: be quiet! Shadow Base 800 FX ATX Mid-Tower

I know the Mobo isn't natively compatible with the 9800X3D, so I did the bios update using the button on the IO panel via USB and confirmed it's properly running the latest Bios version now (3.16).
Regarding the VGA light I've tried re-seating the GPU twice now, power cables and all, and it's running the latest drivers, so I'm not sure what else to check. It runs like a champ even under high load (120-240 FPS in Helldivers 2, ZZZ & FFXIV on max settings) after the first restart following the initial failed post test.
As for the BOOT light, I've ensured all of the prior OS data & partitions were wiped from the older SSD's I'm using for storage now and reinstalled windows 10 on the main SSD. I've tried running the system file checker and it didn't find anything post-OS re-install.
I've discharged the CMOS battery, tried disabling fast boot in UEFI, changed out the monitor cables and recent did a full tear-down & re-installation minus the CPU & cooler. Still the same thing.

It's been super difficult to test because I can only replicate it by waiting until the next day so I'm a bit at a loss of what to look into next.

 

[DRagor]

Ugh, this kind of inconsistent symptoms are worst to diagnose. But if we assume your EVGA is fine this would imply your BeQuiet is not guilty either, so it shifts blame onto motherboard. Or some weird combination of problems.

 

[Darkbreeze]

What Windows version are you running?

 

[LabrieD]

What Windows version are you running?

Windows 10 22H2

 

[LabrieD]

Ugh, this kind of inconsistent symptoms are worst to diagnose. But if we assume your EVGA is fine this would imply your BeQuiet is not guilty either, so it shifts blame onto motherboard. Or some weird combination of problems.

Inconsistent is definitely the word for what I’m seeing. I had today off and tested the following. All tests were done leaving the surge protector & PSU on per everyone’s suggestions with the exception of when I changed back to the new PSU. Only shutdowns were done from the desktop start menu.

2/13
Surge protector outlet - Old EVGA PSU - Wait time 1HR: Successful boot

Wall outlet - EVGA PSU - Wait time 1HR: Successful boot

2/14
Wall outlet - EVGA PSU - Wait time 9HR: Successful boot
Restart to UEFI to check RGB settings caused VGA&BOOT failure

Wall outlet - EVGA PSU - Wait time 1HR: Successful boot
Restart to UEFI successful

Surge protector outlet - EVGA PSU - Wait time 3HR: Successful boot
Restart to UEFI successful

PSU swapped
Surge protector outlet - New BQ! PSU - Wait time 1HR: Successful boot
Restart to UEFI successful

Surge protector outlet - BQ! PSU - Wait time 3HR: Successful boot
Restart to UEFI caused VGA&BOOT failure

 

[LabrieD]

It seems 3 hours may be the sweet spot for testing. Changed nothing from the prior test 3 hours ago and it failed to post again. I honestly would have preferred something just exploded at this point so I would at least know what’s broken

 

[Darkbreeze]

Try this. Do this, exactly as outlined, then see if the problem happens going forward. The reason is, fast/hybrid startup and hibernation OFTEN cause problems because in reality the system doesn't always actually shut down. Then cutting power confuses the hell out of it and it has to reconfigure the boot configuration.

Hibernation

Disabling Hibernation is very easy.

You do not want to do this if you have a laptop as Hibernation is essential when a laptop's battery loses charge and the system needs to safely save it's state. If you have a laptop skip disabling Hibernation and instead disable Fast Startup and Hybrid Sleep if you are having issues.
To disable Hibernation:

1. The first step is to run the command prompt as administrator. In Windows 10, you can do this by right clicking on the start menu and clicking "Command Prompt (Admin)" or right clicking "Command prompt" and selecting "Run as administrator".

2. Type in "powercfg.exe /h off" without the quotes and press enter. If you typed it in correctly, the cursor will simply start at a new line asking for new input

3. Now just exit out of command prompt


And for the record, I've encountered problems trying to get systems to "restart to UEFI/BIOS" on a number of different boards, so I would not count that towards your problem. Only if starting from a cold start does the same thing you've been having problems with. The restart to UEFI/BIOS is an entirely different problem.