Filter
Top Products
Intel® Server Board SE7501WV2 TPS BIOS
Revision 1.0
Intel reference number C25653-001
87
Keyboard redirection operates through the use of the BIOS INT 16h handler. Software
bypassing this handler does not receive redirected keystrokes.
6.14 Emergency Management Port (EMP)
The SE7501WV2 provides a communication serial port with the BMC. The BMC controls a
multiplexor that determines if the external RJ45 Serial 2 connector is electrically connected to
the BMC or to the standard serial port of the Super I/O. Refer to the Emergency Management
Port EPS for information about Emergency Management Port features.
6.14.1 Serial Ports
The SE7501WV2 server board has two serial ports, both external RJ45 connectors. Serial port
2 can be used for both the Emergency Management Port and for modem use. Refer to the
SE7501WV2 Hardware External Product Specification for additional serial port information.
6.14.2 Interaction with BIOS Console Redirection
Additional features are available if BIOS console redirection is enabled on the same serial port
as the Emergency Management Port, and the EMP mode is set to “Always active” or “Preboot.”
BIOS console redirection supports an extra control escape sequence to force the serial port to
the BMC. After this command is sent, Serial port 2 attaches to the BMC Emergency
Management Port serial port and the Super I/O Serial 2 data is ignored. This feature allows a
remote user to monitor the status of POST using the standard BIOS console redirection features
and then takes control of the system reset or power using the Emergency Management Port
features. If a failure occurs during POST, a watchdog time-out feature in the BMC automatically
takes control of Serial Port 2.
The character sequence that switches the multiplexor to the BMC serial port is “ESC O 9”. This
is also denoted as ^[O9. This key sequence is above the normal ANSI function keys and will not
be used by an ANSI terminal. This key sequence is also not defined by the Microsoft document
Standardizing Out-of-Band Management Console Output and Terminal Emulation (VT-UTF8
and VT100+). That document does define an alternate representation, “ESC (“ (or ^[( ), which
is also recognized by Intel BIOS and BMC.
One restriction of using the same serial port for both the Emergency Management Port and
BIOS console redirection is that console redirection must be set up to CTS/RTS for direct
connection and to CTS/RTS+CD for a modem connection. Both the Emergency Management
Port and console redirection assume N, 8, 1 mode. The BIOS redirection and the Emergency
Management Port can work at different baud rates by using the auto baud feature of the
modem.
6.15 Service Partition Boot
The SE7501WV2 server BIOS supports a Service Partition boot. The Service Partition is
installed as a separate file system partition on one of the local hard drives. It hosts the DOS
operating system, the System Setup Utility, and diagnostic agents and tests. The Service
Partition communicates with remote console applications, and can transfer files between the
Service Partition over the LAN, serial port, or a modem.