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.)


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