Ambient Temperature Reference Data; Dram Channel Temperature; Accumulated Dram Energy Data - Intel BX80619I73820 Design Manual

Figure 7-13. Ambient Temperature Reference Data
31
7.1.2.6.6 DRAM Channel Temperature Read
This feature enables a PECI host read of the maximum temperature of each channel.
This would include all the DIMMs within the channel and all the ranks with each of the
DIMMs. Channels that are not populated will return the 'ambient temperature' on
systems using activity-based temperature estimations or alternatively return a 'zero'
for systems using sensor-based temperatures.
Figure 7-14. DRAM Channel Temperature
31
Temperature
(in Degrees C)
7.1.2.6.7 Accumulated DRAM Energy Read
This feature allows the PECI host to read the DRAM energy consumed by all the DIMMs
within all the channels or all the DIMMs within just a specified channel. The parameter
field is used to specify the channel index. Units used are defined as per the Package
Power SKU Unit read described in
bit counter that wraps around. Note that the channel index in
as per the index encoding described in
specify the "all channels" case.
Figure 7-15. Accumulated DRAM Energy Data
31
66
Reserved

Ambient Temperature Reference Data

24 23
Channel 2
Channel 3
Maximum
Maximum
Temperature
(in Degrees C)
Channel Temperature Data

Accumulated DRAM Energy Data

15
Reserved
16 15
Channel 1
Maximum
Temperature
(in Degrees C)
Section 7.1.2.7. This information is tracked by a 32-
Table 7-7. A channel index of 0x00FF is used to
Accumulated DRAM Energy
3
Parameter format
Thermal/Mechanical Specifications and Design Guide
PECI Interface
8 7 0
Ambient
Temperature
(in Degrees C)
8 7
Channel 0
Maximum
Temperature
(in Degrees C)
Figure 7-15 is specified
0
2 0
Channel Index
0