Asus P7F-M - Manual (Page 37)

ASUS P7F-M 2-19
2.5.4 PCI Express x16 slot (x16 link)
The onboard PCI Express x16 slots provides one x16 link to CPU. This slot
supports VGA cards and various server class high performance add-on cards.
2.5.5 PCI Express x8 slot (x4 link)
The onboard PCI Express x8 slot provides one x4 link to PCH. This slot supports
various server class high performance add-on cards.
2.5.6 PCI slots
The PCI slot supports cards such as a LAN card, USB card, and other cards that
comply with PCI 2.3 specifications.
PCIEx16 slot (x16 link)
PCI slot
PCI slot
PCIEx8 slot (x4 link)