[NAME] , you don't need all the drivers and you don't need to compare the version.  Here is my suggestion: Just repeat the next driver until you complete (about 5 or 6 drivers).  About the BIOS, I don't see the need to update as it will fixes the issues with network boot and recovery errors which you may not have.  Also I would get rid of the Dell DCU as it had history of security compromise before.
On Dell Command Updated v4.4.0 checked the update driver but not show any item, there are show more above Precision 3650 Tower driver items on Dell Technologies. Do I need to download and update all/partly drivers? How to check my drivers version compare to list item? [IMAGE]
Do I need to download and update all drivers?