Asus M2V - Manual (Page 40)

2-1 Chapter 2: Hardware information
2.5.4 PCI slots
The PCI slots support PCI cards such
as a LAN card, SCSI card, USB card,
and other cards that comply with PCI
specifications. The following figure
shows a LAN card installed on a PCI
slot.
2.5.6 PCI Express x16 slot
This motherboard supports PCI Express
x16 graphic cards that comply with the
PCI Express specifications. The figure
shows a graphics card installed on the
PCI Express x16 slot.
2.5.5 PCI Express x1 slot
This motherboard supports PCI Express
x1 network cards, SCSI cards and other
cards that comply with the PCI Express
specifications. The figure blow shows
a network card installed on the PCI
Express x1 slot.
When installing the external card with optional ROM, we recommand
you to disable the optional ROMs of some onboard devices (LAN,
Marvell 6121 controller, the South Bridge Raid) to make the external
card work.