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Refer to the following configuration table for installation.
PCIe 3.0 operating mode for 40 lanes CPU
Slot #
PCIEX16/X8_1
PCIEX8_2
PCIEX16/X8_3
PCIEX8_4
PCIe 3.0 operating mode for 28 lanes CPU
Slot #
PCIEX16/X8_1
PCIEX8_2
PCIEX16/X8_3
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1-8
We recommend that you provide sufficient power when running CrossFireX™ or SLI
mode.
While running at four heavy loaded VGA cards, ensure to plug in the 4-pin extra PCIe
power supply for stability.
Single VGA
SLI/CFX
x16
x16
—
—
—
x16
—
—
Single VGA
SLI/CFX
x16
x16
—
—
—
x8
The PCIEX8_4 slot shares bandwidth with M.2 and U.2 ports.
40-LANE CPU: In 4-Way configuration, if the PCIEX16/X8_1 is used in x16 mode,
both M.2 and U.2 ports will be disabled.
28-LANE CPU: In 2-Way and 3-Way configuration, U.2 port will be disabled.
3-way
SLI/CFX
SLI/CFX
x16
x16
x8
x8
x8
x8
—
x8
3-way SLI/
CFX
x8
x8
x8
Chapter 1: Product Introduction
®
4-way
x8
x8
x8
x8
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