NEC 140He User Manual page 279

9-21
There are three types of PCI boards: 5V PCI boards, 3.3V PCI boards, and universal PCI boards.
A 5V PCI board must be installed in the 5V PCI slot, and a 3.3V PCI board must be installed in the 3.3V PCI slot. A
universal PCI board can be installed in any PCI slot.
5V PCI board 3.3V PCI board Universal PCI board
The PCI-Express boards are x1, x4, x8, and x16. The server can contain x1, x4, and x8 PCI-Express boards.
PCI-Express board (x4) PCI-Express board (x8)