I have a Poweredge 2400 with no setup disks. I read that v5.2.0 - Nov.1999 added support for this equipment. I cannot find an ISO image to download to allow me to set up my server with NT4. The advertised v 5.2 I found through Bing wasn't. and didn't cover the 2400. I only have a Dell disk for a 2300 v4.1.1 and it won't work.
I'm not sure NT4 has an installation utility. 4.3 only lists support for 2000/2003 and their are none listed on the 2400's Drivers and Downloads page.