Biostar I945P-A7 I945P-A7 v1.x user's manual - Page 15

I945P-A7 PCI-Ex16: PCI-Express x16 Slot - PCI-Express 1.0a compliant. - Maximum theoretical realized bandwidth of 4GB/s simultaneously per direction, for an aggregate of 8GB/s totally. PCI-Ex1_1/PCI-Ex1_2: PCI-Express x1 slots (Only for Rev 1.0) - PCI-Express 1.0a compliant. - Data transfer bandwidth up to 250MB/s per direction; 500MB/s in total. - PCI-Express supports a raw bit-rate of 2.5Gb/s on the data pins. - 2X bandwidth over the traditional PCI architecture. PCI-EX: PCI-Extreme Slot - PCI-Extreme slot is a special design for PCI-Express interface graphic cards. - PCI-Extreme slot is compliant with PCI-Express 1.0a specification. - PCI-Extreme slot is compatible with PCI-E x4 and PCI-E x1 expansion card. - The bandwidth of data transfer is up to 1GB/s per direction, and for an aggregate of 2GB/s in total. PCI-Ex16 PCI-Ex1_1 (for v1.0) PCI-Ex1_2 (for v1.0) Codec PCI-EX 13 COM1