Maximum PCI Express Speed

When Power Profile is set to Custom, use this option to lower the maximum PCI-express speed at which the server enables PCI-express devices to operate. Doing so can resolve issues with problematic PCI-express devices. Maximum Supported enables the platform to run at the maximum speed supported by the platform or the PCIe device (whichever is lower.)

NOTE:

Changing this setting from Maximum Supported might affect the performance of high-end cards, such as 10GbE NIC cards and I/O accelerators.