Hello, You are correct, ESXi 6.5 U2, build 10719125, is the latest supported ESXi version for the R620 platform. I went ahead and checked VMware's HCL page to see if drivers were uploaded over there to facilitate a manual install, but there is no PERC driver for 6.7 for that generation. There may be other missing drivers as well, but the PERC is a good way to check quickly.  As for the 6.7 U1 link you have, if you scroll down a bit, you'll see a tab that says "Compatible Systems." If you expand that out, you can see all the systems the .ISO is intended to support. The R620 is, unfortunately, absent. I would recommend sticking with ESXi 6.5.
Hi I'm new to Dell servers, but I just got a R620 that I want to upgrade to the lastest ESXi version 6.7, however the newest version I can find on the Driver and downloads section on my Product page is version 6.5. Does that mean that version 6.5 is the newest supported version for the R620? I have found the following ISO,but can I use this on my R620? Best regards Rune
Upgrade to esxi 6.7 on R620