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SE7500CW2 Server Board Technical Product Specification
6.3.6
System Management BIOS (SMBIOS)
This section references the System Management BIOS Reference Specification, Version 2.3.1.
The Desktop Management Interface Specification and its companion, the DMTF Systems
Standard Groups Definition, define "...manageable attributes that are expected to be supported
by DMI-enabled computer systems." Many of these attributes do not have a standard interface to
the management software, but are known by the system BIOS. The system BIOS provides this
interface via data structures through which system attributes are reported.
The system administrator can use SMBIOS to obtain the types, capabilities, operational status,
installation date, and other information about the system components. The SE7500CW2 BIOS
provides the SMBIOS structures via a table-based method. The table convention, provided as an
alternative to the calling interface, allows the SMBIOS structures to be accessed under 32-bit
protected-mode operating systems such as Windows 2000*. This convention provides a
searchable entry-point structure that contains a pointer to the packed SMBIOS structures
residing somewhere in 32-bit physical address space. The SMBIOS entry-point structure
described below can be located by application software by searching for the anchor-string on
paragraph (16-byte) boundaries within the physical memory address range 000F0000h to
000FFFFFh. This entry point encapsulates an intermediate anchor string, which is used by
some existing browsers.
The total number of structures can be obtained from the SMBIOS entry-point structure. The
system information is presented to an application as a set of structures that are obtained by
traversing the SMBIOS structure table referenced by the SMBIOS entry-point structure. The
following table describes the types of SMBIOS structures supported by the system BIOS.
Structure Type
BIOS Information (Type 0)
System Information (Type 1)
Baseboard Information (Type 2)
Chassis Information (Type 3)
Processor Information (Type 4)
Memory Controller Information (Type 5)
Memory Module Information (Type 6)
Cache Information (Type 7)
Port Connector Information (Type 8)
System Slots (Type 9)
On-board Device Configuration (Type 10)
45
Revision 1.40
Table 14: SMBIOS Header Structure
Supported
Yes
One record for the system BIOS. SMBIOS 2.3 does not
allow the use of type 0 records to describe the option
ROMs . The system BIOS version string is described i n
Section 1.1
Yes
Yes
Yes
Yes
One for every processor slot.
No
Browsers should use Type 16 records.
No
Browsers should use Type 17 records.
Yes
Two records for every processor. One record describes
L1 cache and the second one describes L2 cache. The
disabled bit in the cache configuration field is set if the
corresponding processor is absent or disabled.
Yes
Describes the baseboard connectors including IDE,
floppy, keyboard, mouse, COM ports, and parallel port.
Yes
One record for each PCI slot. The number of PCI slots is
determined by a supported 1U or 2U chassis part
number.
Yes
One for each on-board device, like video controller etc.
System BIOS
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