Table 42. Memory Error Events - Intel X38ML - Server Board Motherboard Technical Manual

Intel® Server Board X38ML
Event Data 2 and 3 are undefined for all other events that are logged by the BIOS.
Bits 3:1 of the generator ID field define the format revision. The system software ID is a 7-bit
quantity. For events covered in this document, the system software IDs are within the range
0x18 - 0x1F.
A system software ID of 0x18 indicates that OEM data bytes 2 and 3 are encoded using data
format scheme revision 1.
System software IDs in the range of 0x10 – 0x1f are reserved for the SMI handler. The IPMI
specification reserves two distinct ranges for the BIOS and SMI handler. Since the distinction
between the two is not important, the same values are used for the generator IDs for the BIOS
and the SMI handler. Technically, the FRB-2 event is not logged by the SMI handler, but it will
use the same generator ID range as memory errors. This makes it easier for the BIOS and the
event log parser code.
The BIOS logs all the events using the discrete event trigger class. For this class, the format of
the event data bytes is defined in the Intelligent Platform Management Interface Specification,
Version 2.0.
The system BIOS sensors are logical entities that generate events. The BIOS ensures each
combination of sensor type (such as memory) and event type (sensor-specific) has a unique
sensor number.
6.2.3.1 Memory Error Events
Field
Generator ID 7:1 System software ID or IPMB
slave address.
1 = ID is system software ID
0 = ID is IPMB slave address
Sensor Type See the Intelligent Platform
Management Interface
Specification, Version 2.0.
Sensor Number of sensor that generated
Number this event.
Type Code 0x6F if event offsets are specific to
the sensor.
Event Data 1 7:6
Revision 1.3

Table 42. Memory Error Events

IPMI Definition
Intel order number E15331-006
BIOS Implementation
If BIOS is the source:
7:4 0x3 for the system BIOS.
3:1
1 = Format revision The revision of the data format for
OEM data bytes 2 and 3. For this revision of the
specification, set this field to 1. All other revisions are
reserved.
0
1 = ID is system software ID.
As a result, the generator ID byte will start from 0x31 and go
up to 0x3f, in increments of 2 for events logged by the BIOS.
0xC for memory errors.
Unique value for each type of event. This field has no other
significance. It should not be displayed to the end user if the
event is logged by BIOS. For correctable memory errors, the
value is 0x08. For uncorrectable memory errors, the value is
0x08. To disable correctable memory error logging, the value
is 0x09.
0x6F
0x20 - Correctable ECC Error
Error Reporting and Handling
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