hornefrog | 2026-02-16 16:39:00 UTC | #1 I have a newly built MINISFORUM MS-S1 Max and I added a SABRENT M 2 NVMe SSD to PCIe x16 Tool-Free AIC with Aluminum Heatsink Gen 5 Compatible PCIe Adapter. It can't run at full Gen 4 speed. Any tips are appreciated. Below is a summary of what I did to get it working at Gen 3 speeds: Also posted to Reddit. I installed an NVME SSD in the PCIE Slot in my MINISFORUM MS-S1 Max. The computer sees it but it can't initialize it from Win 11 Pro Disk Management or Terminal. Setup: WD BLACK 8TB SN850X, later replaced with the 4TB model. SABRENT M 2 NVMe SSD to PCIe x16 Tool-Free AIC with Aluminum Heatsink Gen 5 Compatible PCIe Adapter. It shows up as Disk 1 in Device Manager. Win 11 Pro Disk Management won't initialize SSD. The Terminal doesn't work, either. I installed the Mylar Shielding Help appreciated. Bios 1.03 Update; I updated BIOS to 1.06. Formatted the drive in the PCIE slot of another computer, It shows up now in the MINISFORUM MS-S1 Max and I can read it but I cannot speed test it Crystaldiskmark or use Crystaldiskinfo. The disk is not writeable. The error code says a device which does not exist was specified. Are PCIE drives set to read only?! WIn 11 problem? *** UPDATE - This worked when I set the PCIE Lane to Gen 3. I have seen other users report success at full speed - one excellent set of impressions is posted here: https://www.reddit.com/r/MINISFORUM/comments/1p5kvhj/my_experience_with_the_minisforum_mss1_max_tldr/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button ------------------------- ibrapel | 2026-06-10 19:36:02 UTC | #2 Thanks for the detailed feedback! 👍 It seems your PCIe Gen 5 + NVMe SSD adapter isn’t fully compatible with the MINISFORUM MS-S1 Max motherboard for Gen 4/5 speeds. Forcing the port to Gen 3 is often the most stable solution, even if it limits the maximum speed. [Mini Militia](https://www.minimilitia.mobi/) [App Lock](https://www.applock.ooo/) ------------------------- hornefrog | 2026-03-02 13:51:17 UTC | #3 Thanks! -------------------------