Dell PowerEdge C8000 - Manual (Page 105)

Using the System Setup Program 105
PCI Slot Configuration
USB Configuration
Scroll to this item and press <Enter> to view the following screen.
Option Description
PCIe Slot1
(Enabled default)
Enables or disables the PCI Express slot. Options are
[Disabled], [Enabled], [Enabled without OPROM].
NOTE: When you install an Intel Xeon Phi card in the
C8220X sled, BIOS automatically enables the PCI memory
64-bit decode option. You can set the GPGPU information
using IPMI commands. See Table 2-18 for more
information.