Pci_E1~6: Pcie Expansion Slots; Pcie 3.0 Bandwidth Table - MSI X99A Présentation Rapide

PCI_E1~6: PCIe Expansion Slots

Important
For a single PCIe x16 expansion card installation with optimum performance, using
y
the PCI_E1 slot is recommended.
When adding or removing expansion cards, always turn off the power supply and
y
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.
With MSI PCI-E Ambient Light feature, you will be able to easily find out which PCIe
y
x16 slot is operating with full 3.0 x16 speed. Red PCIe LED ambient light indicate the
PCIe x16 slot is operating at full 3.0 x16 speed, and white PCIe LED ambient light
indicate the PCIe x16 slot is operating at 3.0 x8/ x4/ x1 speed. You can also refer to
the PCIe 3.0 bandwidth table for details.

PCIe 3.0 bandwidth table

(─: N/A)
Single-card
CPU 40
Type lanes
PCI_E1 x16
─
PCI_E3
─
PCI_E5
─
PCI_E6*
─
U.2_1* x4
M.2_1 2.0
x4
(PCIe)** x2
* U.2_1 will be un-available when installing a PCIe device in PCI_E6.
** The M.2 PCIe can only support PCIe 2.0 x2 speed if the PCI_E6 slot or U.2 port be installed.
Note: PCI_E1 shares the bandwidth with PCI_E5.
2-Way
28 40
lanes lanes
x16 x16
─
x16
─ ─
─ ─
─ ─
x4 x4 x4
2.0 2.0 2.0
x4 x4
x2 x2 x2
PCI_E1: PCIe 3.0 x16
PCI_E2: PCIe 2.0 x1
PCI_E3: PCIe 3.0 x16
PCI_E4: PCIe 2.0 x1
PCI_E5: PCIe 3.0 x8
PCI_E6: PCIe 3.0 x8
3-Way
28 40
lanes lanes lanes
x16 x16
x8 x16
─ ─
─
x8
─ ─ ─
x4
2.0 2.0 2.0
x4
x2 x2 x2
4-cards
28 40 28
lanes lanes
x8 x8 x8
x8 x16 x8
x8 x8 x8
─
x8 x4
─ ─ ─ ─
2.0 2.0 2.0
x4
x2 x2 x2
Overview of Components
─
2.0
x2
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