Papers with the board explain that it has 2 PCI Express controllers in the MCH to enable either 1 x 16 or 2 x 8 operation for the 16 PCI Express lanes. In addition to multiple thread support, the Intel 975X Express Chipset enables key performance-optimized capabilities such as support for multiple 2x8 graphics cards, Intel Memory Pipeline Technology (Intel MPT), 8GB memory addressability to enable 64-bit computing, and ECC memory support.