I have a Dell R420 that I am trying to get Windows 2008 R2 to install on a P3600 2TB drive. When I boot off the install disk and run through the Windows install, I get to the point to choose a drive to install Windows and I tells me I cannot install Windows at this location due to the drive not being enabled in the BIOS. I have checked all the settings and made sure that the PCIe bus is enabled for boot. I have reset to defaults to no avail, set to UEFI no luck.
One notable item is this system previously was running with an OCZ R4 series drive with no issues.
Anyone been able to get Windows to boot to these drives on this chassis?