Connectors and Jumper Blocks
Intel® Server Board X38ML
Revision 1.3
Intel order number E15331-006
104
7.
Connectors and Jumper Blocks
7.1
Power Connectors
7.1.1
Main Power Connector
The following table defines the pin-out of the main power connector:
Table 51. Power Connector Pin-out (J4K1)
Pin
Signal
18 AWG Color
Pin
Signal
18 AWG Color
1 +3.3V
Orange
10 +3.3V Orange
2 GND
Black
11 -12V Blue
3 GND
Black
12 GND Black
4 +5V
Red
13 PS_ON#
Green
5 +5VSB Purple
14 +5V
Red
6 GND
Black
15 PWROK
Gray
7 GND
Black
16 GND Black
8 P12V_VRD
Yellow
17 GND Black
9 P12V_VRD
Yellow
18 +12V Yellow/Blue
Stripe
7.2
PCI Express* x16 Connector
One PCI Express* x16 connector is provided to support PCI Express* riser cards. The following
table defines the pin-out of the PCI Express x16 connector:
Table 52. PCI Express* x16 Connector Pin-out (J7B1)
Pin-Side B
PCI Spec Signal
Pin-Side A
PCI Spec Signal
1 12V
1 PRSNT1_N
2 12V
2 12V
3 RSVD 3 12V
4 GND
4 GND
5 SMCLK 5 JTAG2
6 SMDAT 6 JTAG3
7 GND
7 JTAG4
8 3_3V
8 JTAG5
9 JTAG1 9 3_3V
10 3_3VAUX 10 3_3V
11 WAKE_N 11 PERST_N
12 RSVD
12 GND
13 GND
13
14 PETP0
14 REFCLK-
15 PETN0
15 GND
16 GND
16 PERP0