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2.4 Expansion Slots (PCI Express Slots)
There are 3 PCI Express slots on the motherboard.
PCIe slots:
PCIE1 (PCIe 2.0 x1 slot) is used for PCI Express x1 lane width cards.
PCIE2 (PCIe 3.0 x16 slot) is used for PCI Express x16 lane width graphics cards.
PCIE3 (PCIe 2.0 x16 slot) is used for PCI Express x4 lane width graphics cards.
PCIe Slot Configurations
Before installing an expansion card, please make sure that the power supply is
switched off or the power cord is unplugged. Please read the documentation of the
expansion card and make necessary hardware settings for the card before you start
the installation.
PCIE1
PCIE2
PCIE3
Ryzen Series CPUs (Matisse)
x1
x16
x4
Ryzen Series CPUs (Pinnacle Ridge)
x1
x16
x4
Ryzen Series CPUs (Summit Ridge)
x1
x16
x4
Ryzen Series CPUs (Picasso)
x1
x8
x4
Ryzen Series CPUs (Raven Ridge)
x1
x8
x4
Athlon series CPUs
x1
x4
x4
For a better thermal environment, please connect a chassis fan to the motherboard’s
chassis fan connector (CHA_FAN1/WP, CHA_FAN2/WP or CHA_FAN3/WP) when
using multiple graphics cards.
Summary of Contents for B450M Steel Legend
Page 3: ...1 English B450M Steel Legend Motherboard Layout ...
Page 14: ...English 12 2 1 Installing the CPU Unplug all power cables before installing the CPU 2 1 ...
Page 15: ...13 English B450M Steel Legend 3 ...
Page 17: ...15 English B450M Steel Legend 3 4 C P U _ F A N 1 4 pin FAN cable ...
Page 18: ...English 16 Installing the AM4 Box Cooler SR2 1 2 ...
Page 19: ...17 English B450M Steel Legend 3 ...
Page 21: ...19 English B450M Steel Legend Installing the AM4 Box Cooler SR3 1 2 ...
Page 22: ...English 20 3 4 ...