User manual

Chapter 2 Installation
EC7-1817LNAR - 21 -
PCIe x4 Slot
The board provides one PCIe x4 slot, marked as PCIE1 on board.
Pin
Signal
Name
Pin
Signal
Name
Pin
Signal
Name
Pin
Signal
Name
A1 PRSNT1# A2 +12V B1 +12V B2 +12V
A3 +12V A4 GND B3 RSVD B4 GND
A5 TCK A6 TDI B5 SMCLK B6 SMDATA
A7 TDO A8 TMS B7 GND B8 +3.3V
A9 +3.3V A10 +3.3V B9 TRST# B10 3.3Vaux
A11
PWRGD/
PERST#
A12 GND B11 WAKE# B12 RSVD
A13 REFCLK+ A14 REFCLK- B13 GND B14 PETp0
A15 GND A16 PERp0 B15 PETn0 B16 GND
A17 PERn0 A18 GND B17 PRSNT2# B18 GND
A19 RSVD A20 GND B19 PETp1 B20 PETn1
A21 PERp1 A22 PERn1 B21 GND B22 GND
A23 GND A24 GND B23 PETp2 B24 PETn2
A25 PERp2 A26 PERn2 B25 GND B26 GND
A27 GND A28 GND B27 PETp3 B28 PETn3
A29 PERp3 A30 PERn3 B29 GND B30 RSVD
A31 GND A32 RSVD B31 PRSNT2#A B32 GND
Install the CPU
Please install the CPU as follows (refer to the figure below):
 Align the first pin (with triangle mark) of the CPU with the notches on the
socket (refer to Figure ①) and insert the CPU into the socket.
 When the CPU is fully seated in the socket, fix the screws on CPU socket in
clockwise direction via screwdrivers (refer to Figure ②). Do it with moderate
force so as not to damage the CPU socket.