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

CPU, Power, Memory

E-core L2 Configurations

E-core L2 Configurations firmware setup page decoded from AMI HII/IFR resources.

Form ID
0x27f0
Records
5
Path
Setup / Advanced / OverClocking Performance Menu / E-core L2 Configurations / Setup / Advanced / Advanced / OverClocking Performance Menu / E-core L2 Configurations

Record 1286

E-core L2 Voltage Mode

Firmware Value

Selects between Adaptive and Override Voltage modes.

Firmware help text

Selects between Adaptive and Override Voltage modes. In Override Mode the voltage selected will be applied over all operating frequencies. In Adaptive Mode the voltage is interpolated only in turbo mode. Uses Mailbox MSR 0x150, cmd 0x10, 0x11.

Opcode
OneOf
Question ID
0x48f
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x2af
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0AdaptiveStandard defaultManufacturing default
1Override

Record 1287

E-core L2 Voltage Override

Firmware Value

Specifies the Override Voltage applied to the Efficient-core L2 domain.

Firmware help text

Specifies the Override Voltage applied to the Efficient-core L2 domain. This voltage is specified in millivolts. Uses Mailbox MSR 0x150, cmd 0x11. Range 0-2000 mV.

Opcode
Numeric
Question ID
0x490
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x2b0
Width
2 byte(s)
Range
0 to 2000 step 1

Default store records

Store IDStore labelValueOption label
0Standard0

Visibility / conditions

  • {"condition_id": 495, "type": "SuppressIf", "offset": 371315, "expr": ["EqIdVal QuestionId: 0x48F, Value: 0x0"]}

Record 1288

E-core L2 Extra Turbo Voltage

Firmware Value

Specifies the extra turbo voltage applied while Efficient-core L2 is operating in turbo mode.

Firmware help text

Specifies the extra turbo voltage applied while Efficient-core L2 is operating in turbo mode. Uses Mailbox MSR 0x150, cmd 0x10, 0x11. Range 0-2000 mV

Opcode
Numeric
Question ID
0x491
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x2b5
Width
2 byte(s)
Range
0 to 2000 step 1

Default store records

Store IDStore labelValueOption label
0Standard0

Visibility / conditions

  • {"condition_id": 496, "type": "SuppressIf", "offset": 371354, "expr": ["EqIdVal QuestionId: 0x48F, Value: 0x1"]}

Record 1289

E-core L2 Voltage Offset

Firmware Value

Specifies the Offset Voltage applied to the Efficient-core L2 domain.

Firmware help text

Specifies the Offset Voltage applied to the Efficient-core L2 domain. This voltage is specified in millivolts. Uses Mailbox MSR 0x150, cmd 0x11. Range -500 to 500 mV

Opcode
Numeric
Question ID
0x492
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x2b2
Width
2 byte(s)
Range
0 to 1000 step 1

Default store records

Store IDStore labelValueOption label
0Standard0

Record 1290

Offset Prefix

Firmware Value

Sets the offset value as positive or negative.

Opcode
OneOf
Question ID
0x493
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x2b4
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0+Standard defaultManufacturing default
1-