Newly rebuilt PC reboots every time it wakes up

Arcanox

I rebuilt my gaming PC a couple weeks ago and based the new build off of a bundle that was on sale at Micro Center. Ever since rebuilding it, I've been having a very consistent problem with resuming from sleep mode. If the PC is asleep for longer than about 30 seconds (roughly - it seems to be about as long as it takes my monitors to fully enter standby mode), then the system will reboot as soon as I try to wake it up from sleep mode. It doesn't matter if I use the power button or just press a key on the keyboard - it will spin up the fans and turn on the LEDs, but about 1-2 full seconds later, the whole thing instantly clicks off, waits about another full second, and then boots up as if it had been force-shutdown. If I put it to sleep, but then wake it back up before all the monitors fully go to sleep, it will wake up just fine. It also resumes from Hibernate with no issues.

Here's a PC Parts Picker link to the current build as it is right now: https://pcpartpicker.com/list/rVY4Bq

The only parts I kept from my old build were the SSDs (including the Windows 10 install). I made sure to install all applicable drivers when I first booted it up on the new build - GPU, chipset, network, the whole deal. I also updated the BIOS to the latest version, and that also did not fix the problem.

I'm running Windows 10 22H2. My Windows install is the same as my old build, but my old build did not have any problems at all resuming from sleep, so I don't think it has to do with the OS install.

I originally was using an MSI MAG A750GL power supply, but somebody on Discord suggested it may have just barely been enough for my build and I may have been hitting an overload protection at wake-up. I bought an 850W gold-rated PSU on Amazon to see if it would fix the issue, but the issue persists even after swapping to the more-powerful PSU.

I have all my old parts still, but they're old enough that the only thing I can swap out is the GPU with my old 2070 Super. The reboot-on-wake issue happens with the 2070 Super as well, so it isn't GPU-related as far as I can tell. I have tried each RAM stick by itself in the A2 slot to make sure it wasn't a bad RAM stick, but it happens with both of them individually. I also tried them in A1/B1 instead of A2/B2, and the problem still occurs.

Does anyone have any experience with this kind of issue, or what steps I should take next to continue troubleshooting? If I need to return any parts, I definitely want to do that sooner rather than later in case there is a limited return window on any of them.

Arcanox

I was running out of time in my parts return window in case I needed to swap anything out, so last night, I went back to Micro Center and returned my original G.Skill RAM and picked up some equivalent-spec Corsair Vengeance RAM. After installing the new RAM, the problem has been solved! I kept the computer asleep all night long and it woke up just fine.