BIOS Intel® Server Board SDS2
Revision 1.2
Order Number: A85874-002
44
Sensor
Name
Sensor
#
Sensor Type
Event/
Reading
Type
Event
Offset
Triggers
DIMM 6 6Dh
Slot Connector
- 21h Sensor
Specific - 6Fh
Fault Status
Asserted,
Device Installed,
Disabled
System ACPI
Power State 78h System ACPI
Power State –
22h
Sensor
Specific - 6Fh
S0 / G0,
S1,
S4,
S5 / G2,
G3 Mechanical Off
Button 79h Button – 14h Sensor
Specific - 6Fh
Power Button,
Sleep Button,
Reset Button
System
Event 7Ah System Event –
12h Sensor
Specific - 6Fh OEM System Boot
Event (Hard Reset)
SMI Timeout 7Bh SMI Timeout –
F3h Sensor
Specific - 6Fh State Asserted
Sensor
Failure 7Ch
Sensor Failure
– F6h Sensor
Specific - 6Fh
I2C device not found,
I2C device error
detected,
I2C Bus Timeout
NMI Signal
State 7Dh
OEM - C0h Digital
Discrete - 03h
-
SMI Signal
State 7Eh OEM - C0h Digital
Discrete - 03h
-
6.2.4.2 Timestamp Clock The BMC maintains a four-byte internal timestamp clock used by the System Event Log and Sensor Data Record subsystems. This clock is incremented once per second and is read and set using the Get SEL Time and Set SEL Time commands, respectively. The Get SDR Time command can also be used to read the timestamp clock. The BMC has direct access the system real-time clock. This allows the BMC to automatically synchronize the SEL/SDR timestamp clock to the real-time clock time on BMC startup. The BMC periodically reads the real-time clock to maintain synchronization even when software asynchronously changes the value. In addition to this, the BIOS send a timestamp to the BMC using Set SEL Time command during POST.