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Chapter 8 BIOS ROM
Compaq Deskpro EN Series of Personal Computers
Desktop and Minitower Form Factors
Third Edition - September 1998
8-20
8.5.1 SMBIOS
In support of the DMI specification the PnP functions 50h and 51h are used to retrieve the
SMBIOS data. Function 50h retrieves the number of structures, size of the largest structure, and
SMBIOS version. Function 51h retrieves a specific structure. This system supports SMBIOS
version 2.1 and the following structure types:
Type Data
0 BIOS Information
1 System Information
3 System Enclosure or Chassis
4 Processor Information
5 Memory Controller Information
6 Memory Module Information
7 Cache Information
8 Port Connector Information
9 System Slots
10 On Board Device Information
12 System Configuration Options
13 BIOS Language Information
16 Physical Memory Array
17 Memory Devices
18 Memory Error Information
19 Memory Array Mapped Addresses
20 Memory Device Mapped Addresses