Supermicro SC836BE1C-R1K23B User Manual page 72

SC836 Chassis Manual
Front Connector and Pin Definitions
#1 - #2. Activity LED Header
The activity LED headers, designated JP26
and JP47, are used to indicate the activity
status of each SAS drive. These activity LED
headers are used by the host controller for
the SATA drives that previously had no activity
status output. If using a SAS drive, and for
most SATA drives, these activity headers are
not required.The Activity LED Header is located
on the front panel. For the Activity LED Header
to work properly, connect using a 10-pin LED
cable.
#3. MG9072 Chips
The MG9072 chips are enclosure management
chips that support the SES-2 controller and
SES-2 protocols.
#4. Fan Connectors
The 4-pin connectors, designated JP54, JP56,
JP58 and JP60, provide power to the fans.
See the table on the right for pin definitions.
These 4-pin connectors are compatible with
3-pin and 4-pin fans.
SAS Activity LED Header
Pin # Definition
1 ACT IN#0
2 ACT IN#1
3 ACT IN#2
4 ACT IN#3
5 Ground
SAS Activity LED Header
Pin # Definition
1 ACT IN#8
2 ACT IN#9
3 ACT IN#10
4 ACT IN#11
5 Ground
Pin#
1
2
3
4
C-4
Pin Definitions
Pin # Definition
6 ACT IN#4
7 ACT IN#5
8 ACT IN#6
9 ACT IN#7
10 Empty
Pin Definitions
Pin # Definition
6 ACT IN#12
7 ACT IN#13
8 ACT IN#14
9 ACT IN#15
10 Empty
Fan Connectors
Definition
Ground
+12V
Tachometer
No connection