Hi to All
I recently purchased a Lenovo P310-SFF ThinkStation (with Win7 through w10 downgrade);        
http://www3.lenovo.com/ca/en/webca/workstations/thinkstation-p-series/30AV/p/33TS3TPP31030AVto use as my replacement Windows desktop and with the hope that I would also be able to eventually load some 
version of os/2 on it (the hope came from Lenovo's propaganda indicating being able to use Linux, which I don't use, with 
it).
I'm still playing/tinkering with the computer, I've installed a couple of front 2.5" drive trays. Lenovo's 
Rescue/re-install media (w7 or w10) disregards any current partitioning\sizing and completely wipes the 
system HDD/SSD, creating a single (full disk size) GPT system partition and the associated hidden 
partitions. Apparently, Lenovo's licensing won't allow their OEM w7 and w10 to coexist on the same machine. 
nor, could I figure out how to change the w7 "product key" to one of my spare licenses, its not available in 
the control panel system object.   
OK, as I currently use win7 and have had only a passing brush with w10, I thought why not install W7 from 
scratch and then later with dfSee, to the rescue, re-size and clone/copy the Lenovo w10 installation from a 
2nd drive to free space on my "working" drive.
This led to the Intel USB3 (xchi) gotcha;       
https://support.lenovo.com/ca/en/solutions/ht104907       https://en.wikipedia.org/wiki/Skylake_(microarchitecture)
Intel, in it's wisdom, on the Skylake(others?) architecture, has removed the EHCI component from their XCHI 
controller which may be an initial "show stopper" for os/2 installations on mother boards with similar chip 
sets, until we have USB3 support.
As an aside, the P310 does have 2 USB2 rear keyboard/mouse ports, plus I purchased a fall back of ps/2 
ports. When I have time I'll cobble together a "plumber's(elect.tech's) nightmare" of cables/hub(s)/devices 
and try that. Oh yea, ps/2 bits where were they last seen and in what box?
regards
Jim