I have a Pavillion 500-164. I upgraded to a Corsair PSU and a Nvidia GTX 750 quite a while ago. Those are still working great.
I just purchased a set of Corsair RAM off Amazon (Amazon Link) and installed it Friday. I know it isn't the best quality RAM but it does meet the upgrade guidlines on the Pavilions page. Everything was fine and dandy Friday and Saturday.
This morning I boot my PC and it doesn't even display the HP logo. Just a black screen. I restarted it and it got to the login screen. Logged into Windows fine. About 30 seconds after, it gives me a BSOD with no info on it, just a QR code, which just took me to a page about BSOD screens. How helpful lol.
I booted into the BIOS and ran a couple Memtests, all failed. When I look at the Components > Memory bios screen, slots 1,2, & 3, show up fine. Slot 4 on the other hand shows up as unnsupported.
Both CPUz and Task Manager show 32GB. Everything looks fine from Windows. I rebooted the PC and have not encountered any errors, but the BIOS still shows slot 4 as unssupported.
Does this sound like a fluke or a problem with the RAM? I can easily get a refund with Amazon if I need to on the RAM.
Assuming the CPUz is the third party software by CPUID, does it identify the module correctly? I would run a Memtest routine from outside of Windows to verify it is good. You can make a selfbooting CD to do that.