Supermicro Superserver - Page 45

45
Chapter 4: Motherboard Connections
RAID Key Header
A RAID Key header is located at JRK1 on the motherboard. The RAID key is used to support
onboard S-SATA connections.
SGPIO Header
The T-SGPIO3 (Serial General Purpose Input/Output) header is used to communicate with
the enclosure management chip on the back panel.
SGPIO Header
Pin Denitions
Pin# Denition Pin# Denition
1 NC 2 NC
3 Ground 4 DATA Out
5 Load 6 Ground
7 Clock 8 NC
NC = No Connection
Intel RAID Key
Pin Denitions
Pins Denition
1 GND
2 PU 3.3V Stdby
3 GND
4 PCH RAID KEY
Standby Power
The Standby Power header is located at JSTBY1 on the motherboard. You must have a card
with a Standby Power connector and a cable to use this feature. Refer to the table below
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Standby Power
Pin Denitions
Pin# Denition
1 +5V Standby
2 Ground
3 No Connection
Power SMB (I
2
C) Header
The Power System Management Bus (I
2
C) connector (JPI
2
C1) monitors the power supply,
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Power SMB Header
Pin Denitions
Pin# Denition
1 Clock
2 Data
3 PMBUS_Alert
4 Ground
5 +3.3V