Pci_E1~3: Pcie Expansion Slots; Jfp1, Jfp2: Front Panel Connectors - MSI MAG B660M MORTAR WIFI DDR4 Manuel D'utilisation

PCI_E1~3: PCIe Expansion Slots

BAT1
⚠
Important
∙
If you install a large and heavy graphics card, you need to use a tool such as MSI
Graphics Card Bolster to support its weight to prevent deformation of the slot.
∙
For a single PCIe x16 expansion card installation with optimum performance, using
the PCI_E1 slot is recommended.
∙
When adding or removing expansion cards, always turn off the power supply and
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.

JFP1, JFP2: Front Panel Connectors

These connectors connect to the switches and LEDs on the front panel.
20
Overview of Components
PCI_E1: PCIe 4.0 x16 (From CPU)
PCI_E2: PCIe 3.0 x1 (From B660 chipset)
PCI_E3: PCIe 3.0 x4 (From B660 chipset)
JFP2 1
Speaker -
1
Buzzer -
3
Power LED
2
JFP1
1
HDD LED
1 HDD LED +
HDD LED -
3
5 Reset Switch
7 Reset Switch
9 Reserved
Buzzer
Speaker
2 Buzzer +
4 Speaker +
Power Switch
10
9
Reserved
Reset Switch
2 Power LED +
Power LED -
4
6 Power Switch
8 Power Switch
10 No Pin