39
38
Chapter 4: Motherboard Connections
SuperServer 5019S-ML User's Manual
Chapter 4
Motherboard Connections
This section describes the connections on the motherboard and provides pinout definitions.
Note that depending on how the system is configured, not all connections are required. The
LEDs on the motherboard are also described here. A severboard layout indicating component
locations may be found in Appendix B.
Please review the Safety Precautions in Chapter 3 before installing or removing components.
4.1 Power Connections
Two power connections on the X11SSH-F must be connected to the power supply. The wiring
is included with the power supply.
•
24-pin Primary ATX Power (JPWR1)
•
8-pin Processor Power (JPWR2)
Main ATX Power Connector
The primary power connector (JPWR1) meets the ATX SSI EPS 12V specification. You must
also connect the 8-pin (JPWR2) processor power connector to your power supply (see below).
Required Connection
Important:
To provide adequate power to the motherboard, connect the 24-pin
and
the 8-pin
power connectors to the power supply. Failure to do so may void the manufacturer's warranty
on your power supply and motherboard.
ATX Power 24-pin Connector
Pin Definitions
Pin#
Definition
Pin#
Definition
13
+3.3V
1
+3.3V
14
-12V
2
+3.3V
15
Ground
3
Ground
16
PS_ON
4
+5V
17
Ground
5
Ground
18
Ground
6
+5V
19
Ground
7
Ground
20
Res (NC)
8
PWR_OK
21
+5V
9
5VSB
22
+5V
10
+12V
23
+5V
11
+12V
24
Ground
12
+3.3V
4.2 Headers and Connectors
Fan Headers
There are five fan headers on the motherboard. These are 4-pin fan headers; pins 1-3 are
backward compatible with traditional 3-pin fans. The onboard fan speeds are controlled by
Thermal Management via IPMI. When using Thermal Management setting, please use all
3-pin fans or all 4-pin fans.
Required Connection
+12V 8-pin Power
Pin Definitions
Pin#
Definition
1 - 4 Ground
5 - 8 +12V
Processor Power Connector
JPWR2 must also be connected to the power supply. This connector is used to power the
processor(s).
Power Supply SMBus Header
A Power SMB header is located at PW4. Connect the appropriate cable here to utilize SMB
on your system.
Power Supply
SMB Header
Pin Definitions
Pin#
Definition
1
Clock
2
Data
3
PWR Fail
4
Ground
5
+3.3V
Fan Header
Pin Definitions
Pin#
Definition
1
Ground (Black)
2
2.5A/+12V (Red)
3
Tachometer
4
PWM_Control