MSI MAG H670 TOMAHAWK WIFI DDR4 Manuel D'utilisation page 31

PCI_E1~4: PCIe Expansion Slots
⚠
Important
If you install a large and heavy graphics card, you need to use a tool such as MSI
∙
Gaming Series 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.
JTBT1: Thunderbolt Add-on Card Connector
This connector allows you to connect the add-on Thunderbolt I/O card.
PCI_E1: PCIe 5.0 x16 (From CPU)
PCI_E2: PCIe 3.0 x1 (From H670 chipset)
PCI_E3: PCIe 3.0 x4 (From H670 chipset)
PCI_E4: PCIe 3.0 x1 (From H670 chipset)
1 TBT_Force_PWR
3 TBT_CIO_Plug_Event#
5 SLP_S3#_TBT
7 SLP_S5#_TBT
9 Ground
11 DG_PEWake
13 TBT_RTD3_PWR_EN
15 TBT_Card_DET_R#
2 16
1 15
2 TBT_S0IX_Entry_REQ
4 TBT_S0IX_Entry_ACK
6 TBT_PSON_Override_N
8 No pin
10 SMBCLK_VSB
12 SMBDATA_VSB
14 Ground
16 PD_IRQ#
Overview of Components
19