This is less of a "hey, check out this cool build" submission, and more of a "this is my first build, it has already killed one SSD and is now blue screening on the second one, SOS!!!" plea for help, basically.
On the first try, I had a Crucial MX500 1TB SATA M.2 SSD in the main slot running the OS. Enter Assassin's Creed: Origins. Played on a Samsung 4K TV, all ultra settings, native 4K. Many hours of gameplay went by mostly normally, with an occasional hard graphical stutter lasting about half a second. Eventually one such stutter led to a hard crash, with a "Select proper boot device" error on restart. SSD did not appear in BIOS. Placed in extra slot in my laptop, nothing, appears completely dead. Both at idle & while running AC:O, I didn't notice any dangerously high temperatures, & system did not throw up any critical warnings.
While running it without the case lid on, I had noticed a solid yellow LED on the SSD, but didn't think this meant anything other than it's working. A friend suggested it may have been a simple bad SSD. So I thought I'd try again with a better one.
Now I've retried with the P1 NVME SSD, & also re-checked all cable seating. I changed the cooler connections after re-reading the H60 & mobo manuals & realizing I might have mixed up CPU_FAN and PUMP_FAN. This SSD doesn't show any solid LED, either. A ~3 hour session of AC:O went by without incident - in fact, the hard stutter was no longer occurring at all, and it was running quite smoothly, even better than the first attempt.
Later, was now using it with the lid screwed on & placed in my home theatre rack (so, less airflow, temps a bit higher but do not appear to be critical). 30 more minutes of AC:O, no issues in-game. Then I quit to desktop -- upon which I received a frozen BSoD with error "CRITICAL_PROCESS_DIED". Rebooted into a very sluggish & broken Win10 with blank windows popping up. Scared to death of hardware failure (again), I did another hard reset. Luckily this time, Win10 bootup caught that something is broken & did an automatic system restore to what looks like fresh post-installation (with app install files still intact, but not listed in Apps and Features). Reinstalled all drivers, apps, etc. To my surprise, Win10 appears to be working fine. CrystalDiskInfo does not show any drive errors.
Totally lost here; while just Win10 appears to run fine, I'm scared to run AC:O again without seeking expert advice & diagnosis first. Any and all comments/advice are greatly appreciated, and happy to attempt clarifying any specifics about the setup. Reminder: clueless newbie here -- may be fundamental critical error(s) in build method/part choice/power/cooling.
PCPP throws up a warning that the GPU is too long, but it fits fine.
PCPP estimated power draw is 356W, so I had thought the 500W PSU would be sufficient.
The H60 cooler is taking cool air inside via the front vent, and the PSU is upside down to be used as an exhaust, the way I've seen it in many builds with this case.
Everything is running stock, no OC settings touched, no BIOS changes (like I said, clueless newbie).
While running the game I was using MSI Dragon Center's Hardware Monitor to check CPU temps, and CrystalDiskInfo to check SSD health & temps.
I looked at lots of other builds with the same case & parts, thinking this would all work fine (heh).
Temps from the AC:O benchmark tool: GPU around 65-70 avg, CPU & SSD around 60.
At idle, GPU is 51, CPU 40, while SSD is at 55-58 (perhaps a bit high for just being idle in Win10?)