This looks very similar to my L530. Your settings are not what I am using, but your's should work (you should try turning off the AMT support, I don't have that feature). DFSEE seemed to think it was okay, but it wasn't. I had a terrible battle with getting the disk geometry to cooperate, until I simply wiped the whole disk, and used MiniLVM to set it up. When I tried to re-install win 7, it wouldn't do it, until I put it back the way it was when it came from Lenovo. DFSEE did not give me a valid geometry.
What I ended up doing, was install win 7, downgrade to win 10 (to get it registered as having win 10), then I did the setup with MiniLVM again, and installed win 10 in the assigned partition (clean install from a DVD boot, making sure that windows did not try to set up the disk). That was okay, and it registered okay. Then, i put my eCS configuration back, using zipped backups. Now, it is working properly, and LVM no longer complains. DFSEE is also happy.
I require the QSINIT loader (or OS/4 loader) to be able to use the full memory that eCS is capable of using (it is 512 meg without it). The QSINIT RAMDISK uses some of the rest of the installed memory.
I will note that I was able to get eCS installed, before I changed the geometry, but LVM always complained about an invalid partition table. I think it worked because I accidentally hit a setup that just happened to work.