Asus MAXIMUS VIII HERO User Guide - Page 36
Motherboard Layout, Modes, PCIe operating mode
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Chapter 1 PCIe operating mode Motherboard Layout M.2 M.2 M.2 M.2 M.2 PCIEX1_1 Modes Auto PCIe PCIe X1 X4 x1 x1 x1 - PCIE_X16/X8_1 - x1 - - PCIEX1_2 x1 - x1 - PCIE_X8_2 ---- PCIEX1_3 x1 - x1 - PCIEX4_3 x1 x4 x1 x4 • 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. 1-20 Chapter 1: Product Introduction
1-20
Chapter 1: Product Introduction
Chapter 1
Modes
Auto
PCIe
X1
PCIe
X4
PCIEX1_1
x1
x1
x1
–
PCIE_X16/X8_1
–
x1
–
–
PCIEX1_2
x1
–
x1
–
PCIE_X8_2
–
–
–
–
PCIEX1_3
x1
–
x1
–
PCIEX4_3
x1
x4
x1
x4
•
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.
PCIe operating mode
Motherboard Layout