Hi, I'm going to preface this post with the post I've already made on another forum, but am not receiving much help on, but have additional information to add below such as specs, steps I've taken since making this quoted post, and other such information.
Just over the last weekend I've been performing the laborious task of reinstalling Windows onto a new storage device - giddy with anticipation, I finished installing Windows 10 on my brand new Samsung 960EVO, excited to see just how fast it was, but when I loaded into Windows, all I had happening was stuttering, and a lot of it. Voice communications over Discord were laggy, Chrome took forever to start, and just browsing Explorer was a difficulty.
I've attempted numerous fixes that I've found around the place, such as turning off CSM in the BIOS, installing, and reinstalling, the Samsung NVMe drivers, and checking the performance monitor to see if there was a culprit, but nothing has worked - AS SSD showed a normal 2500MB/s and 1700MB/s sequential read/write, but with shockingly slow random 4k/4k 64 thread read/write times.
Am I just stuck with a not-great drive, or would I have some other problem such as compatibility?
I understand this is quite open ended, so any questions you could provide that I have answers to would help you to help me. Also, I'm new to the forum so please let me know if I have done something incorrectly, or not conforming to rules and such.
Motherboard: GIGABYTE AORUS z270x Gaming-K5
CPU: Intel i7 7700k
GPU: Nvidia GeForce Titan
RAM: 2x8gb Corsair Vengeance DDR4 3000MHz
PSU: Thermaltake Tough Power Gold 850W 80+
Samsung 960 EVO NVMe SSD 250gb
Intel 520 Series SSD 120gb
Seagate 2TB 7200RPM HDD (unknown model)
Western Digital 320GB 10000RPM HDD (unknown model)
Acer K272HL 27" LED, 1920x1080 - 60Hz, IPS
BenQ G2400W 27" LCD, 1920x1200 - 60Hz, TFT
HP L2208w 22" LCD, 1680x1050 - 59Hz, TFT
OS: Windows 10 Pro x64, build 14393.1198
Since creating the original post, I've attempted rolling back from Samsung's NVMe driver v2.2 and tried v2.1, with a slight increase in performance, but upon request of another user on the other forum, I tried using Snappy Driver Installer, with which I've accidentally installed a different NVMe Controller entirely (which I can't, for the life of me, figure out how to remove) which has brought my 960's speeds VERY low (sequential 400/300 MB/s as opposed to 2500/1700 MB/s) and still did not fix the original problem.
To reiterate, my new Samsung 960 Evo NVM Express SSD, which should in theory be blitzing fast, with a completely fresh installation of Windows 10 Pro x64, is performing (much) slower than my older Intel 520 Series SATA III SSD, and with any load causes short-but-constant (0.05-0.1s, up to three times a second) hangs, which I'm referring to as stuttering for simplicity's sake.
Any help would be very appreciated, especially from people with experience with NVM Express drives. I usually consider myself quite well versed with computers but this new tech has me stumped, having never even heard of NVMe drives up until about two months ago.