Surface 8 Pro - new SSD - compatibility with PCIe 4

The latest firmware from Windows Insider Program doesn't help in my case (WD SN740 1TB). Will try editing the registry.

Lalaneta,

I used your post as a guide to make the appropriate changes in the registry using REGEDIT (from the search bar) with my original drive still installed. I then cloned my old drive using Macrium onto the new SN740 2TB drive. I had the new drive mounted in an enclosure that connects via USBC. Once the clone was complete, I placed the new SSD into the bay and everything works great. Very fast reads and writes, about 1.9TB of storage and a stable operating system. Fantastic!

So what fixed it for the SN740 2TB for me was to install the new Surface SAM Firmware. See below:

• Surface model: Surface Pro 8 Model 1983 i7
• SAM: 11.101.139.0
• UEFI: 18.102.141.0
• WiFi driver: 22.190.0.4
• App Version: 61.11095.139.0

You can install that by turning on the Windows Insider Program and choosing the release preview track.

It isn't perfect. Sleep sometimes crashes - but no crashes at all during work.

Finally I sold my SN740 and installed again the original 256 drive that is a hynix bc711. So I ordered from ebay a relatively cheap bc711 512gb, to improve a littel the capacity untill to understand how to do with a gen 4x4 compatibility.

Anyway, at the end I think that the power plans myst remain the original for a surface... much much better and balanced for the battery, even if you use the laptop for extreme power tasks with Throttlestop.

I'applied the boot /regedit method with sn 740 1tb. Even though i coudnt apply all seetings it worked. As mentioned i had to do it again after installing 22H2 Update. But you can do it after start up in the regeditor (U need to be quick as the system will initially run but crash after 1-5 min.) then reboot and it works perfectly. Read Write was 5000/4100 MB/s with CrystallDiskMark