Reference Guide

“PCI SIMPLE COMMUNICATIONS CONTROLLER”
These devices don’t impact any server functionality.
Resolution: Currently these drivers are not available and a driver release
from support.dell.com is planned at the Dell RTS for Windows Server
2012 R2.
IE Compatibility Issue with iDRAC
On Windows Server 2012 R2 with Internet Explorer 11 browser, the
iDRAC GUI page does not display correct information.
Resolution: Open the iDRAC GUI page in browser compatibility view
mode. To enable compatibility view mode , open IE11 browser and
navigate to Tools->Compatibility View Settings