MSI X99S User Guide - Page 35

Expansion Slots, PCI_E1~6: PCIe Expansion Slots, PCIe Bandwidth Table

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Chapter 1 Expansion Slots This motherboard contains numerous slots for expansion cards, such as discrete graphics or audio cards. PCI_E1~6: PCIe Expansion Slots The PCIe slot supports the PCIe interface expansion card. PCIe 3.0 x16 Slot PCIe 2.0 x1 Slot PCIe Bandwidth Table ■■3.0 = PCIe Gen 3.0 lanes, 2.0 = PCIe Gen 2.0 lanes Bandwidth 1-Way 2-Way 3-Way CPU Type 40 lanes 28 lanes 40 lanes 28 lanes 40 lanes 28 lanes PCI_E1 3.0 x16 3.0 x16 3.0 x16 3.0 x16 3.0 x16 3.0 x8 PCI_E3 3.0 x16 3.0 x8 3.0 x16 3.0 x8 PCI_E5 3.0 x8 PCI_E6 3.0 x8 M.2 3.0 x4 3.0 x4 3.0 x4 3.0 x4 2.0 x2* 3.0 x4 SATA Express 2.0 x2 2.0 x2 2.0 x2 2.0 x2 2.0 x2 2.0 x2 * When installing the M.2 PCIe interface module, please set the "M.2 PCH Strap" for [M.2 PCIE] in BIOS. Important • For a single PCIe x16 expansion card installation with optimum performance, using the PCI_E1 slot is recommended. • When adding or removing expansion cards, always turn off the power supply and unplug the power supply power cable from the power outlet. Read the expansion card's documentation to check for any necessary additional hardware or software changes. 1-21 Getting Started

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Chapter 1
1-21
Getting Started
Expansion Slots
This motherboard contains numerous slots for expansion cards, such as discrete
graphics or audio cards.
PCI_E1~6: PCIe Expansion Slots
The PCIe slot supports the PCIe interface expansion card.
PCIe 2.0 x1 Slot
PCIe 3.0 x16 Slot
PCIe Bandwidth Table
■
3.0 = PCIe Gen 3.0 lanes, 2.0 = PCIe Gen 2.0 lanes
Bandwidth
1-Way
2-Way
3-Way
CPU Type
40
lanes
28
lanes
40
lanes
28
lanes
40
lanes
28
lanes
PCI_E1
3.0 x16
3.0 x16
3.0 x16
3.0 x16
3.0 x16
3.0 x8
PCI_E3
3.0 x16
3.0 x8
3.0 x16
3.0 x8
PCI_E5
3.0 x8
PCI_E6
3.0 x8
M.2
3.0 x4
3.0 x4
3.0 x4
3.0 x4
2.0 x2*
3.0 x4
SATA Express
2.0 x2
2.0 x2
2.0 x2
2.0 x2
2.0 x2
2.0 x2
* When installing the M.2 PCIe interface module, please set the “M.2 PCH Strap” for [M.2 PCIE] in BIOS.
Important
•
For a single PCIe x16 expansion card installation with optimum performance, using
the PCI_E1 slot is recommended.
•
When adding or removing expansion cards, always turn off the power supply and
unplug the power supply power cable from the power outlet. Read the expansion
card’s documentation to check for any necessary additional hardware or software
changes.