Datasheet

Processor Uncore Configuration Registers
132 Intel
®
Xeon
®
Processor E7-2800/4800/8800 v2 Product Family
Datasheet Volume Two: Functional Description, February 2014
13.2.4.11 DIMM_TEMP_TH_[0:2]
13.2.4.12 DIMM_TEMP_THRT_LMT_[0:2]
All three THRT_CRIT, THRT_HI and THRT_MID are per DIMM BW limit, that is, all
activities (ACT, READ, WRITE) from all ranks within a DIMM are tracked together in one
DIMM activity counter.
Type: CFG PortID: N/A
Bus: 1 Device: 16 Function: 0,1,4,5
Bus: 1 Device: 30 Function: 0,1,4,5
Offset: 0x120, 0x124, 0x128
Bit Attr Default Description
31:27 RV - Reserved.
26:24 RW 0x0
TEMP_THRT_HYST (temp_thrt_hyst):
Positive going Threshold Hysteresis Value. Set to 00h if sensor does not support
positive-going threshold hysteresis. This value is subtracted from
TEMP_THRT_XX to determine the point where the asserted status for that
threshold will clear.
23:16 RW 0x5f
TEMP_HI (temp_hi):
TCase threshold at which to Initiate THRTCRIT and assert THERMTRIP# valid
range: 32 to 127°C. Note: the default value is listed in decimal.
FF: Disabled
Others: reserved.
TEMP_HI should be programmed so it is greater than TEMP_MID
15:8 RW 0x5a
TEMP_MID (temp_mid):
TCase threshold at which to Initiate THRTHI and assert valid range: 32 to
127°C.
Note: the default value is listed in decimal.
FF: Disabled
Others: reserved.
TEMP_MID should be programmed so it is less than TEMP_HI
7:0 RW 0x55
TEMP_LO (temp_lo):
TCase threshold at which to Initiate 2x refresh and/or THRTMID and initiate
Interrupt (MEMHOT#).
Note: the default value is listed in decimal.valid range: 32 to 127°C.
FF: Disabled
Others: reserved.
TEMP_LO should be programmed so it is less than TEMP_MID
Type: CFG PortID: N/A
Bus: 1 Device: 16 Function: 0,1,4,5
Bus: 1 Device: 30 Function: 0,1,4,5
Offset: 0x130, 0x134, 0x138
Bit Attr Default Description
31:24 RV - Reserved.