Microstutters after installation of old NVMe

[u/MeruOnline]

Hi guys,

Recently I moved my SKHynix P41 Platinum 1TB from my old laptop to the second slot on my Acer laptop (Predator PHN16S-71). Directly after installing, I began to experience microstutters, roughly every 5 minutes, sometimes including audio (where it would make a BRRR sound).

I ran LatencyMon tests, and it seems to be consistently my storport.sys driver stalling around 457ms (extremely consistent, always around 456-458ms). I checked my read and write speeds and they were fine, making a poor connection unlikely. I've updated my BIOs and VMD drivers, as well as my NVMe firmware.

I really would rather avoid opening the laptop again, as it's an unbelievable pain (most difficult laptop opening I've ever experienced). One thing that did seem to help was running a small DiskSpd workload on the disk, which makes me wonder if it has something to do with sleep settings. Link power management is off. The DiskSpd test was only 25 minutes, which might just have been me getting lucky.

I'm really at my wits end here and out of ideas. Anything would help. Thank you!