[jsheard]

That works as long as you prepare the drive on a machine that does support TRIM, to ensure the unpartitioned area gets TRIMed one last time before the drive is moved to the old machine. Then it should remain in that state as long as it's never written to.

[wat10000]

Even if you didn’t do that, I wouldn’t expect the partitioning to write to the unallocated space. If you start with a fresh drive I’d think it should work.