Some additional information....
I put this card into another similar rig to make sure it is fine, and it works great. Array is recognized by the OS (same as the other Windows Server 2008 R2), and all seems well. I went ahead and updated it firmware, etc. to the latest. I pulled the profile from the machine where it is working, copied below.
When I did get it installed in the other rig, I did notice several errors in the card's log all with this message:
LOCALIZED MESSAGE = Controller ID: 0 Fatal firmware error: Line 1480 in ../../raid/1078dma.c
Server IP: 192.168.1.149
Server Name: VailServer
OS name: Windows Server 2008 R2
OS Version: 6.1
OS Architecture: x86_64
Driver Name: megasas2.sys
Driver Version: 6.707.07.00
Application Version: RAID Web Console 2 - 14.11.01.00
Controller: Intel (R) RAID Controller RS2WC080(Bus 2,Dev 0,Domain 0)
Firmware Package Version:20.12.1-0168
Firmware Version: 2.130.394-3028
Virtual Drive(s): 1