Nvidia MS-7374 - Manual (Page 34)

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M S-7374 M ainboard
PCI (Peripheral Component Interconnect) Express Slots
The PCI Express slot supports the PCI Express interface expansion card.
The PCI Express 2.0 x 16 supports up to 8.0 GB/s transfer rate.
The PCI Express 2.0 x 8 supports up to 4.0 GB/s transfer rate.
The PCI Express x 1 supports up to 250 MB/s transfer rate.
Slots
Mazarine PCI Express x16 Slot supports up to
PCI Express 2.0x 16 speed (PCI_E1 )
PCI Express x 1 Slot (PCI_E2)
Blue PCI Express x 16 Slot supports up to
PCI Express 2.0 x 8 speed (PCI_E3)
Important
When adding or removing expansion cards, make sure that you unplug the
power supply first. Meanwhile, read the documentation for the expansion card
to configure any necessary hardware or software settings for the expansion
card, such as jumpers, switches or BIOS configuration.