Congatec conga-HPC/uATX-Server User Manual page 29

4.2.2 PCIe x8 Slot
The conga-HPC/uATX-Server provides a standard PCIe x8 slot on connector X14. The slot is routed to the module's PCIe lanes 24–31 and it
shares these lanes with PCIe x16 slot (connector X13).
Connector X13 is an open-ended PCIe connector configured with a default x8 link width. To support a PCIe card with a wider lane width, set
SW4 to the ON position.
Table 19 SW4.1 - PCIe Multiplexer Configuration
Switch Configuration
SW4.1 ON
OFF
Note
If you connect a PCIe card to X14 (x8 slot), the link width of PCIe x16 slot (X13) will be restricted to a x8 link width.
Connector Type
X14: PCIe x8 card
4.2.3 M.2 Key M Socket
The conga-HPC/uATX-Server provides two standard M.2 key M sockets (X11 and X12). The X11 socket is routed to the module's PCIe lanes 8-11
while the X12 socket is routed to the module's PCIe lanes 12-15. The sockets support 2242, 2280 and 22110 M.2 card sizes.
The red LED D8 lights when an activity occurs on socket X11. When an activity occurs on socket X12, the red LED D9 lights. With DIP switch
SW1.1 and SW1.2, you can enable clock request signal for X11 and X12 respectively without connecting an M.2 card.
Table 20 X11/X12 PCIe Clock Request Configuration
Switch Configuration
SW1.1 ON
OFF
SW1.2 ON
OFF
Connector Type
X11, X12: PCIe M.2 key M card
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Description
Enable support for PCIe cards with wider lane width
Detect PCIe cards with up to x8 lane width automatically (default)
Description
Enable clock request immediately for M.2 key M (X11)
Enable clock request only when a PCIe Card is connected (default)
Enable clock request immedately for M.2 key M (X12)
Enable clock request only when a PCIe Card is connected (default)
SW1
D8/D9
HATXm001
X14
SW4.1
X11, X12
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