Intel SE7501WV2 User Manual

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BIOS 
Intel® Server Board SE7501WV2 TPS 
  
Revision 
1.0 
 
Intel reference number C25653-001 
78
Note: The recovery BIOS requires a 1.44 MB media in a 1.44 MB floppy drive or LS-120 drive. 
6.11  Universal Serial Bus (USB) 
The SE7501WV2 server BIOS supports USB keyboard, mouse and boot devices. The 
SE7501WV2 server platform contains two USB host controllers. Each host controller includes 
the root hub and two USB ports. During POST, the BIOS initializes and configures the root hub 
ports and looks for a keyboard, mouse, boot device, and the USB hub and enables them. 
The BIOS implements legacy USB keyboard support. USB legacy support in BIOS translates 
commands that are sent to the PS/2 devices into the commands that USB devices can 
understand. It also makes the USB keystrokes and the USB mouse movements appear as if 
they originated from the standard PS/2 devices.  
6.12  BIOS Supported Server Management Features 
The SE7501WV2 server BIOS supports many standards-based server management features 
and several proprietary features. The Intelligent Platform Management Interface (IPMI) is an 
industry standard that defines standardized abstracted interfaces to platform management 
hardware. The SE7501WV2 server BIOS supports version 1.5 of the IPMI specification. The 
BIOS also implements many proprietary features that are allowed by the IPMI specification, but 
which are outside of the scope of the IPMI specification.  
This section describes the implementation of the standard and proprietary features, including 
console redirection, the Emergency Management Port (EMP), Service Partition boot, Direct 
Platform Control over the serial port, and Platform Event Paging and Filtering. The BIOS owns 
console redirection over a serial port, but plays only a minimal role in Platform Event Paging and 
Filtering. 
6.12.1 IPMI 
The term intelligent platform management refers to the autonomous monitoring and recovery 
features that are implemented in platform hardware and firmware. Platform management 
functions such as inventory, the event log, monitoring and reporting system health, etc., are 
available in a powered down state and without help from the host processors. The Baseboard 
Management Controller (BMC) and other controllers perform these tasks independent of the 
server processor. The BIOS interacts with the platform management controllers through 
standard interfaces. 
The BIOS is responsible for opening the system interface to the BMC early in the POST. This 
may involve enabling chip selects, decode, etc. 
The BIOS also logs system events and POST error codes during system operation. The BIOS 
logs a boot event to the BMC early in POST. These events follow the IPMI specification. The 
IPMI specification version 1.5 requires the use of all but two bytes in each event log entry, 
called Event Data 2 and Event Data 3. An event generator can specify that these bytes contain 
OEM-specified values.