Technical Product Specification

Connector/Header Locations and Pin-out Intel
®
Server Board S2600WP TPS
Side Even
Signal
Side Odd
Signal
34
FP RST BTN_N
33
GND
32
FP ID BTN_N
31
SMB_HSBP_3V3STBY_CLK
30
FP ID LED_N
29
SMB_HSBP_3V3STBY_DATA
28
FP PWR LED_N
27
GND
26
FP STS LED G_N
25
SMB_3V3STBY_CLK
24
FP STS LED A_N
23
SMB_3V3STBY_DATA
22
FP ACT LED_N
21
GND
20
FP HDD ACT LED_N
19
IPMB-5VSTBY_Clk
18
GND
17
IPMB-5VSTBY_Data
16
USB2_P0_DN
15
GND
14
USB2_P0_DP
13
SPARE
12
GND
11
ALL_NODE_OFF
10
SATA0_RX_DP
9
GND
8
SATA0_RX_DN
7
GND
6
GND
5
SATA0_TX_DP
4
USB_OC_FP
3
SATA0_TX_DN
2
5V Aux
1
5V Aux
Combined system BIOS and the Integrated BMC support provide the functionality of the various
supported control panel buttons and LEDs. The following sections describe the supported
functionality of each control panel feature.
7.4
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.
 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.
 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.
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.
 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
Intel order number G44057-007 Revision 1.6
146