Asus Maximus VIII Hero User Manual page 36

Motherboard Layout
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•
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1-20
PCIe operating mode
M.2
M.2
M.2
M.2
M.2
M.2
PCIEX4_3 shares bandwidth with PCIEX1_2 and PCIEX1_3.
PCIEX4_3 will run in X2 mode by default with PCIEX1_2 and PCIEX1_3 enabled.
When a PCIEx4 card is inserted into the PCIEX4_3 slot, PCIEX1_2 and PCIEX1_3
will be disabled and the PCIEX4 card will run in X4 mode.
Auto
PCIEX1_1 x1
PCIE_X16/X8_1 –
PCIEX1_2 x1
PCIE_X8_2 –
PCIEX1_3 x1
PCIEX4_3 x1
Chapter 1: Product Introduction
Modes
PCIe PCIe
X1 X4
x1 x1 –
x1 – –
– x1 –
– – –
– x1 –
x4 x1 x4