Intel BX80605I7870 Data Sheet - Page 92
Memory Thermal Control
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UPC - 735858210461
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Register Description 2.13 2.13.1 2.13.2 Memory Thermal Control MC_THERMAL_CONTROL0 MC_THERMAL_CONTROL1 MC_THERMAL_CONTROL2 Controls for the Integrated Memory Controller thermal throttle logic for each channel. Device: 4, 5, 6 Function: 3 Offset: 48h Access as a Dword Bit Type Reset Value Description 2 RW 1:0 RW APPLY_SAFE. 1 Enable the application of safe values while MC_THERMAL_PARAMS_B.SAFE_INTERVAL is exceeded. THROTTLE_MODE. S elects throttling mode. 00 = Throttle disabled 01 = Open Loop: Throttle when Virtual Temperature is greater than 0 MC_THROTTLE_OFFSET. 10 = Closed Loop: Throttle when MC_CLOSED_LOOP.THROTTLE_NOW is set. 11 = Closed Loop: Throttle when MC_DDR_THERM_COMMAND.THROTTLE is set and the MC_DDR_THERM pin is asserted OR OLTT will be implemented (Condition 1). MC_THERMAL_STATUS0 MC_THERMAL_STATUS1 MC_THERMAL_STATUS2 Status registers for the thermal throttling logic for each channel. Device: 4, 5, 6 Function: 3 Offset: 4Ch Access as a Dword Bit 29:4 3:0 Type RO RO Reset Value 0 0 Description CYCLES_THROTTLED. The number of throttle cycles, in increments of 256 Dclks, triggered in any rank in the last SAFE_INTERVAL number of ZQs. RANK_TEMP. The bit specifies whether the rank is above throttling threshold. 92 Datasheet
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