Can bad ram cause system not to see drives?
Can bad ram cause system not to see drives?
It might be related to the RAM not being fully seated during installation. Since then, your PC has shown instability—Windows files became corrupted, you had to reinstall, and storage devices vanished from the BIOS. You also experienced frequent blue screen crashes. The BIOS checks seem normal, and drive health tests confirm everything is okay. You’ve already removed the SSD and are using only the HDD now.
This might be due to the SSD being partially used, around 30-40%, especially when running online games and using Windows.
I don't understand the parts of your setup, so I'll make general points. Your RAM shouldn't lead to strange actions unless it's faulty and you confirmed its quality. A possible issue could be a corrupted BIOS during installation with the improper RAM stick. A simple fix is to reset the CMOS and let your system train with the correct RAM installed. The RAM won't fail if it's not fully seated, though it might behave oddly until properly positioned.