Intel S3420GPLC - Server Board Motherboard Specification page 100

Connector/Header Locations and Pin-outs
Pin Signal
A5 JTAG2/TCk
A6 JTAG3/TDI
A7 JTAG4/TDO
A8 JTAG5/TMS
A9 +3.3V
A10 +3.3V
A11 PERST#
A12 GND
A13 REFCLK+
A14 REFCLK-
A15 GND
A16 HSIP[0]
A17 HSIN[0]
A18 GND
A19 RESERVED
A20 GND
A21 HSIP[1]
A22 HSIN[1]
A23 GND
A24 GND
A25 HSIP[2]
One PCI Express* X4 connector (J2B1)
Pin# Signal
A1 PRSNT1_N
A2 +12V
A3 +12V
A4 GND
A5 JTAG2
A6 JTAG3
A7 JTAG4
A8 JTAG5
88
Pin Signal
B5 SMCLK
B6 SMDAT
B7 GND
B8 +3.3V
B9 JTAG1/TRST#
B10 3.3VAUX
B11 WAKE#
B12 RESERVED
B13 GND
B14 HSOP[0]
B15 HSON[0]
B16 GND
B17 PRSNT2#
B18 GND
B19 HSOP[1]
B20 HSON[1]
B21 GND
B22 GND
B23 HSOP[2]
B24 HSON[2]
B25 GND
Pin# Signal
B1 +12V
B2 +12V
B3 RSVD
B4 GND
B5 SMCLK
B6 SMDAT
B7 GND
B8 +3.3V
Intel order number E65697-010
Pin Signal
HSIN[3]
A30
A31 GND
A32 RESERVED
A33 RESERVED
A34 GND
HSIP[4]
A35
HSIN[4]
A36
A37 GND
A38 GND
HSIP[5]
A39
HSIN[5]
A40
A41 GND
A42 GND
HSIP[6]
A43
HSIN[6]
A44
A45 GND
A46 GND
HSIP[7]
A47
HSIN[7]
A48
A49 GND
Pin# Signal
A17 PERN0
A18 GND
A19 RSVD
A20 GND
A21 PERP1
A22 PERN1
A23 GND
A24 GND
Intel® Server Board S3420GP TPS
Pin Signal
B30 RESERVED
B31 PRSNT2#
B32 GND
B33 HSOP[4]
B34 HSON[4]
B35 GND
B36 GND
B37 HSOP[5]
B38 HSON[5]
B39 GND
B40 GND
B41 HSOP[6]
B42 HSON[6]
B43 GND
B44 GND
B45 HSOP[7]
B46 HSON[7]
B47 GND
B48 PRSNT2#
B49 GND
Pin# Signal
B17 PRSNT2_N
B18 GND
B19 PETP1
B20 PETN1
B21 GND
B22 GND
B23 PETP2
B24 PETN2
Revision 2.4