(1)PCI-E插槽
从上至下依次为PCI-E 4X、PCI-E 16X、PCI-E 1X
(2)PCI-E金手指
PCI-E 1X金手指PCI-E 4X金手指PCI-E 16X金手指2. PCI-E接口定义(1)说明:
(2)PCI-E管脚定义:
3. PCI-E传输速率 PCI-E X18bit2.5GHz512Mb/s(双工)PCI-E X48bit2.5GHz2Gb/s(双工)PCI-E X88bit2.5GHz4Gb/s(双工)PCI-E X168bit2.5GHz8Gb/s(双工)4. 参考(1)PCI Express 1x, 4x, 8x, 16x bus pinout
http://pinouts.ru/Slots/pci_express_pinout.shtml
(2)PCI Express
https://en.wikipedia.org/wiki/PCI_Express
(3)PCI、PCI-x,PCI-E兼容以及他们之间的区别详细图解
http://www.jb51.net/hardware/xianka/56902.html