i9 BIOS
Leo-Patch 1.6 · Q1HY MoDT · Observations 14 October 2026

Thermal

Cpu Thermal Configuration

Cpu Thermal Configuration firmware setup page decoded from AMI HII/IFR resources.

Form ID
0x27dc
Records
10
Path
Setup / Advanced / Thermal Configuration / Cpu Thermal Configuration / Setup / Advanced / Advanced / Thermal Configuration / Cpu Thermal Configuration

Record 966

Tcc Activation Offset

Firmware Value

Offset from factory set Tcc activation temprature at which the Thermal Control Circuit must be activated.

Firmware help text

Offset from factory set Tcc activation temprature at which the Thermal Control Circuit must be activated. Tcc will be activated at: Tcc Activation Temp - Tcc Activation Offset. Tcc Activation Offset range is 0 to 63.

Opcode
Numeric
Question ID
0x357
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x7f
Width
1 byte(s)
Range
0 to 63 step 0

Default store records

Store IDStore labelValueOption label
0Standard0

Record 967

Tcc Offset Time Window

Firmware Value

Tcc Offset Time Window for Running Average Temperature Limit(RATL) feature.

Firmware help text

Tcc Offset Time Window for Running Average Temperature Limit(RATL) feature. The Tcc offset time window can range from 5ms to 448s.

Opcode
OneOf
Question ID
0x358
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x1c8
Width
4 byte(s)
Range
0 to 448000 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
55 ms
1010 ms
5555 ms
156156 ms
375375 ms
500500 ms
750750 ms
10001 sec
20002 sec
30003 sec
40004 sec
50005 sec
60006 sec
70007 sec
80008 sec
1000010 sec
1200012 sec
1400014 sec
1600016 sec
2000020 sec
2400024 sec
2800028 sec
3200032 sec
4000040 sec
4800048 sec
5600056 sec
6400064 sec
8000080 sec
9600096 sec
112000112 sec
128000128 sec
160000160 sec
192000192 sec
224000224 sec
256000256 sec
320000320 sec
384000384 sec
448000448 sec

Record 968

Tcc Offset Clamp Enable

Firmware Value

Tcc Offset Clamp bit Enable for Running Average Temperature Limit(RATL) feature to allow CPU to throttle below P1.

Opcode
OneOf
Question ID
0x359
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x1cc
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Record 969

Tcc Offset Lock Enable

Firmware Value

Lock Enable for Running Average Temperature Limit(RATL) feature to lock Temperature Target MSR.

Opcode
OneOf
Question ID
0x35a
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x1cd
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1EnabledStandard default

Record 970

Bi-directional PROCHOT#

Firmware Value

When a processor thermal sensor trips (either core), the PROCHOT# will be driven.

Firmware help text

When a processor thermal sensor trips (either core), the PROCHOT# will be driven. If bi-direction is enabled, external agents can drive PROCHOT# to throttle the processor.

Opcode
OneOf
Question ID
0x35b
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x7a
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 971

Disable PROCHOT# Output

Firmware Value

Enable/Disable PROCHOT# Output

Opcode
OneOf
Question ID
0x35c
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x7b
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Visibility / conditions

  • {"condition_id": 368, "type": "SuppressIf", "offset": 358201, "expr": ["EqIdVal QuestionId: 0x35B, Value: 0x0"]}

Record 972

Disable VR Thermal Alert

Firmware Value

Enable/Disable VR Thermal Alert

Opcode
OneOf
Question ID
0x35d
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x7c
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Record 973

PROCHOT Response

Firmware Value

Enable/Disable PROCHOT Response

Opcode
OneOf
Question ID
0x35e
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x7e
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 974

PROCHOT Lock

Firmware Value

Enable/Disable PROCHOT Lock

Opcode
OneOf
Question ID
0x35f
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x7d
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 975

ACPI T-States

Firmware Value

Enable/Disable ACPI T-States.

Opcode
CheckBox
Question ID
0x360
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x79

Default store records

Store IDStore labelValueOption label
0Standard0