Processor Configuration Registers
2.19.2
MEM_TRML_THRESHOLDS_CONFIG—Memory
Thermal Thresholds Configuration Register
This register is used to describe the thresholds of the memory thermal management in
the memory controller. The warm threshold defines when self-refresh is at double data
rate. Throttling can also be applied at this threshold based on the configuration in the
memory controller. The hot threshold defines the threshold at which severe thermal
throttling will occur. Self Refresh is also at double rate during a hot condition.
B/D/F/Type:
Address Offset:
Reset Value:
Access:
0/0/0/MCHBAR PCU
5888–588Bh
00E4DAD0h
RW
Size:
32 bits
BIOS Optimal Default
00EDAD0h
Reset
Value
RST/
PWR
Bit
Access
Description
31:16
15
RO
0h
1b
Reserved (RSVD)
Hot Threshold Enable (HOT_THRESHOLD_ENABLE)
This bit must be set to allow the hot threshold.
RW
Uncore
Uncore
Uncore
Uncore
Hot Threshold (HOT_THRESHOLD)
This threshold defines what is the acceptable temperature
limitation. When this threshold is crossed, severe throttling takes
place. The self refresh is also at double rate.
14:8
7
RW
RW
RW
1010101b
1b
Warm Threshold Enable (WARM_THRESHOLD_ENABLE)
This bit must be set to allow the warm threshold.
Warm Threshold (WARM_THRESHOLD)
The warm temperature threshold defines when the self refresh is
at double rate. Throttling can also be applied at this threshold
based on the configuration in the memory controller.
6:0
1010000b
298
Datasheet, Volume 2
INTEL [ INTEL ]
