I have installed Server 2003 on a Dell 755. I have managed to find and install all of the drivers using the standard 'Dell Service Tag->Download and Install Drivers->Use Compatability Mode for the stuff that Server 2003 doesn't like' method.
After a few hours, I have not been able to find a driver that works for the PCI Simple Communications Controller for this version of the Optilplex. I have tried the XP drivers in compatability mode with no success.
On the Dell drivers page there are 3 'chipset' drivers mentioned. I am able to install two of the three drivers. The driver that will NOT work is the 'Intel AMT-HECI A02 R255437".
I have Google and searched EE....no luck. Any ideas what is going on here?