I am a total noob. I would like to use a second nvme drive for storage & a scratch disk for photoshop. I have a pair of WD blue SN550 1tb drives - 1 id a clone of my original 256 OEM drive and it boots/works flawlessly. The other is not recognized...

Loaded question, but not intentionally. I bought a G75 (specs below) for my son and want it to really cook. He plays Steam games almost exclusively and likes to "mod" them. The G75 is lagging just a touch. Please let me know what the "best" upgra...