Yes, ran the 10 min diagnostics, came back clean. Ran the 40 min deeper one, it referenced a memory warning that needed further diagnostic. I haven't had the time to run the 2hr diag test for that, but IT dept has agreed to swap the PC. Dell service is looking at a possible component replacement - was very responsive to helping assess the issue.
This is a new computer used at work. Worked fine for 4 months, then started crashing 3x per day. Bios, drivers, other apps all updated by employer techs with no change. Often crashed during Teams video meetings.  Computer returned to IT dept to be re-imaged. 1st day in use it crashed again in middle of Teams meeting. Tech updated Bios. I ran the short 10 minute diagnostic and it crashed.  Is this a pattern anyone recognizes and does it seem like a hardware or software issue? A substitute computer of different brand provided by IT dept, doing exactly the same work, was flawless for 2 months before I got the original Dell 5510 back today and the crashes began again. 
Lattitude 5510 frequent crashing