Connectors And Jumper Blocks; Power Connectors; Main Power Connector; Pci Express* X16 Connector - Intel X38ML - Server Board Motherboard Technical Manual

Connectors and Jumper Blocks

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:
Pin
1 +3.3V
2 GND
3 GND
4 +5V
5 +5VSB
6 GND
7 GND
8 P12V_VRD
9 P12V_VRD
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:
Pin-Side B
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
104

Table 51. Power Connector Pin-out (J4K1)

Signal 18 AWG Color
Orange
Black
Black
Red
Purple
Black
Black
Yellow
Yellow

Table 52. PCI Express* x16 Connector Pin-out (J7B1)

PCI Spec Signal
12V
12V
RSVD
GND
SMCLK
SMDAT
GND
3_3V
JTAG1
3_3VAUX
WAKE_N
RSVD
GND
PETP0
PETN0
GND
Intel order number E15331-006
Pin Signal
10 +3.3V Orange
11 -12V Blue
12 GND Black
13 PS_ON# Green
14 +5V Red
15 PWROK Gray
16 GND Black
17 GND Black
18 +12V Yellow/Blue Stripe
Pin-Side A PCI Spec Signal
1 PRSNT1_N
2 12V
3 12V
4 GND
5 JTAG2
6 JTAG3
7 JTAG4
8 JTAG5
9 3_3V
10 3_3V
11 PERST_N
12 GND
13 REFCLK+
14 REFCLK-
15 GND
16 PERP0
Intel® Server Board X38ML
18 AWG Color
Revision 1.3