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Technical Reference 95
Table 51. Front Panel Connector (J9E3) (continued)
Pin Signal Type* Description
12 FP_NMI_BTN* in FRONT PANEL NMI is connected to a BMC input port,
allowing the front panel to generate an NMI.
FP_NMI_BTN*
is pulled high to +5 V on the baseboard and is intended to be
connected to a momentary-contact push button (connected to
GROUND when pushed) on the system front panel.
13 SM_IMB_SCL in/out I
2
C CLOCK is the clock signal for the Intelligent Platform
Management Bus.
14 FP_RST_BTN* in FRONT PANEL RESET is connected to the BMC. A hard
resent occurs and all baseboard devices, except for the BMC
are reset.
FP_RST_BTN* is pulled high to +5V on the
baseboard, and is intended to be connected to a momentary-
contact push button (connected to GROUND when pushed)
on the system front panel.
15 +5V standby power +5 V STANDBY is the standby 5 volt power supply.
16 FP_PWR_BTN* in FRONT PANEL POWER CONTROL is connected to the
BMC and causes the power to toggle (on → off, or off → on).
FP_PWR_BTN* is pulled high to +5 V standby on the
baseboard and is intended to be connected to a momentary-
contact push button (connected to GROUND when pushed)
on the system front panel.
17 SM_FP_ISOL in SM_FP_ISOL, when asserted, isolates the front panel SM
bus.
18 GROUND ground GROUND is the power supply ground.
19 FAN_TACH(0) in FAN_TACH signal is connected to the BMC to monitor the
FAN speed.
20 FAN_TACH(1) in FAN_TACH signal is connected to the BMC to monitor the
FAN speed.
21 FAN_TACH(2) in FAN_TACH signal is connected to the BMC to monitor the
FAN speed.
22 FAN_TACH(3) in FAN_TACH signal is connected to the BMC to monitor the
FAN speed.
23 FAN_TACH(4) in FAN_TACH signal is connected to the BMC to monitor the
FAN speed.
24 FAN_TACH(5) in FAN_TACH signal is connected to the BMC to monitor the
FAN speed.
25 FAN_TACH(6) in FAN_TACH signal is connected to the BMC to monitor the
FAN speed.
26 FAN_TACH(7) in FAN_TACH signal is connected to the BMC to monitor the
FAN speed.
27 RJ45_ACTLED_R in NIC activity LED.
28 reserved - Reserved.
29 SM_PRI_SCL in/out I
2
C CLOCK is the clock signal for the Primary Private Bus.
30 SM_PRI_SDA in/out I
2
C DATA is the data signal for the Primary Private Bus.
* Type (in, out, in/out, power, ground) is from the perspective of the baseboard.