Intel SE7525GP2 - Manual (Page 114)

Intel® Server Board SE7320SP2 & Intel Server Board SE7525GP2 TPS Platform Management
Revision 2.0 114
5.2.6.4 Boot Flags and LAN Console Redirection
The system BIOS includes a LAN Console Redirection capability. This capability can only be
directed to one IP Address at a time. Thus, the boot flags and boot initiator information are also
used to tell the BIOS where to send LAN Console Redirection.
5.2.7 Wake On LAN / Power On LAN and Magic Packet Support
The server board supports Wake On LAN / Power On LAN capability using the on-board
network interface chips or an add-in network interface card. An add-in network card can deliver
the wake signal to the server board via the PME signal on the PCI bus. The actual support for
Magic Packet and/or packet filtering for Wake On LAN / Power On LAN is provided by the NIC.
The server board handles the corresponding wake signal.
5.2.7.1 Wake On LAN in S4/S5
A configuration option is provided that allows the on-board NICs to be enabled to wake the
system in an S4/S5 state, even if the operating system disabled Wake-On-LAN when it powered
down the system. This provides an option for users who want to use standard, but non-secure,
WOL capability for operations such as after-hours maintenance. Note that the DPC LAN
capability provides a secure system power-up, plus the ability to provide BIOS boot options, by
sending authenticated IPMI messages directly to the BMC via the on-board NICs.
5.2.8 Watchdog Timer
The mBMC implements an IPMI 1.5-compatible watchdog timer. See the IPMI specification for
details. SMI and NMI pre-timeout actions are supported, as are hard reset, power down, and
power cycle timeout actions.
5.2.9 System Event Log (SEL)
The mBMC implements the logical System Event Log device as specified in the Intelligent
Platform Management Interface Specification, Version 1.5. The SEL is accessible via all
communication transports. In this way, the SEL information can be accessed while the system is
down by means of out-of-band interfaces. The maximum SEL size that is supported by mBMC
is 92 entries.
Supported commands are:
• Get SEL Info
• Reserve SEL
• Get SEL Entry
• Add SEL Entry
• Clear SEL
• Get SEL Time
• Set SEL Time
5.2.9.1 Timestamp Clock
The mBMC maintains a four-byte internal timestamp clock used by the SEL and SDR
subsystems. This clock is incremented once per second. It is read using the Get SEL Time
command and set using the Set SEL Time command. The Get SDR Time command can also be
used to read the timestamp clock. These commands are specified in the Intelligent Platform
Management Interface Specification, Version 1.5.