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Intel® Xeon® Processor E5-1600/E5-2600/E5-4600 Product Families 39
Datasheet Volume One
Table 2-6. RdPkgConfig() & WrPkgConfig() DRAM Thermal and Power Optimization
Services Summary (Sheet 1 of 2)
Service
Index
Value
(decimal)
Parameter
Value
(word)
RdPkgConfig()
Data
(dword)
WrPkgConfig()
Data
(dword)
Description
Alternate Inband
MSR or CSR
Access
DRAM Rank
Temperature
Write 18
Channel
Index &
DIMM Index
N/A
Absolute
temperature in
Degrees Celsius
for ranks 0, 1, 2
& 3
Write
temperature for
each rank within
a single DIMM.
N/A
DIMM
Temperature
Read 14
Channel
Index
Absolute
temperature in
Degrees Celsius for
DIMMs 0, 1, & 2
N/A
Read
temperature of
each DIMM
within a
channel.
CSR:
DIMMTEMPSTAT_[0:2]
DIMM Ambient
Temperature
Write / Read
19 0x0000 N/A
Absolute
temperature in
Degrees C to be
used as ambient
temperature
reference
Write ambient
temperature
reference for
activity-based
rank
temperature
estimation.
N/A
DIMM Ambient
Temperature
Write / Read
19 0x0000
Absolute
temperature in
Degrees C to be
used as ambient
temperature
reference
N/A
Read ambient
temperature
reference for
activity-based
rank
temperature
estimation.
N/A
DRAM Channel
Temperature
Read
22 0x0000
Maximum of all rank
temperatures for
each channel in
Degrees Celsius
N/A
Read the
maximum DRAM
channel
temperature.
N/A
Accumulated
DRAM Energy
Read
04
Channel
Index
0x00FF - All
Channels
DRAM energy
consumed by the
DIMMs
N/A
Read the DRAM
energy
consumed by all
the DIMMs in all
the channels or
all the DIMMs
within a
specified
channel.
MSR 619h:
DRAM_ENERGY_STATUS
CSR:
DRAM_ENERGY_STATUS
CSR:
DRAM_ENERGY_STATUS_C
H[0:3]
1
DRAM Power
Info Read
35 0x0000
Typical and
minimum DRAM
power settings
N/A
Read DRAM
power settings
info to be used
by power
limiting entity.
MSR 61Ch:
DRAM_POWER_INFO
CSR: DRAM_POWER_INFO
DRAM Power
Info Read
36 0x0000
Maximum DRAM
power settings &
maximum time
window
N/A
Read DRAM
power settings
info to be used
by power
limiting entity
MSR 61Ch:
DRAM_POWER_INFO
CSR: DRAM_POWER_INFO