Intel S2600JFQ BBS2600JFQ User Manual
Product codes
BBS2600JFQ
Intel®
Server Board S2600JF TPS
Connector/Header Locations and Pin-out
Revision 1.3
Intel order number G31608-004
121
7.3.1
Power Button
The BIOS supports a front control panel power button. Pressing the power button initiates a
request that the Integrated BMC forwards to the ACPI power state machines in the chipset. It is
monitored by the Integrated BMC and does not directly control power on the power supply.
request that the Integrated BMC forwards to the ACPI power state machines in the chipset. It is
monitored by the Integrated BMC and does not directly control power on the power supply.
Power Button
— Off to On
The Integrated BMC monitors the power button and the wake-up event signals from the
chipset. A transition from either source results in the Integrated BMC starting the power-
up sequence. Since the processors are not executing, the BIOS does not participate in
this sequence. The hardware receives the power good and reset signals from the
Integrated BMC and then transitions to an ON state.
chipset. A transition from either source results in the Integrated BMC starting the power-
up sequence. Since the processors are not executing, the BIOS does not participate in
this sequence. The hardware receives the power good and reset signals from the
Integrated BMC and then transitions to an ON state.
Power Button
— On to Off (operating system absent)
The System Control Interrupt (SCI) is masked. The BIOS sets up the power button event
to generate an SMI and checks the power button status bit in the ACPI hardware
registers when an SMI occurs.
to generate an SMI and checks the power button status bit in the ACPI hardware
registers when an SMI occurs.
If the status bit is set, the BIOS sets the ACPI power state
of the machine in the chipset to the OFF state. The Integrated BMC monitors power
state signals from the chipset and de-asserts PS_PWR_ON to the power supply. As a
safety mechanism, if the BIOS fails to service the request, the Integrated BMC
automatically powers off the system in four to five seconds.
state signals from the chipset and de-asserts PS_PWR_ON to the power supply. As a
safety mechanism, if the BIOS fails to service the request, the Integrated BMC
automatically powers off the system in four to five seconds.
Power Button
— On to Off (operating system present)
If an ACPI operating system is running, pressing the power button switch generates a
request through SCI to the operating system to shut down the system. The operating
system retains control of the system and the operating system policy determines the
sleep state into which the system transitions, if any. Otherwise, the BIOS turns off
the system.
request through SCI to the operating system to shut down the system. The operating
system retains control of the system and the operating system policy determines the
sleep state into which the system transitions, if any. Otherwise, the BIOS turns off
the system.
7.3.2
Reset Button
The platform supports a front control panel reset button. Pressing the reset button initiates a
request forwarded by the Integrated BMC to the chipset. The BIOS does not affect the behavior
of the reset button.
request forwarded by the Integrated BMC to the chipset. The BIOS does not affect the behavior
of the reset button.
7.3.3
Chassis Identify Button
The front panel Chassis Identify button toggles the state of the chassis ID LED. If the LED is off,
pushing the ID button lights the LED. It remains lit until the button is pushed again or until a
Chassis Identify or a Chassis Identify LED command is received to change the state of
the LED.
pushing the ID button lights the LED. It remains lit until the button is pushed again or until a
Chassis Identify or a Chassis Identify LED command is received to change the state of
the LED.
7.3.4
Power LED
The green power LED is active when the system DC power is on. The power LED is controlled
by the BIOS.
by the BIOS.
The power LED reflects a combination of the state of system (DC) power and the
system ACPI state.
The following table identifies the different states that the power LED can assume.
Table 63. Power LED Indicator States
State
ACPI
Power LED
Power off
No
Off
Power on
No
Solid on
S5
Yes
Off