Thermal

Memory Power and Thermal Throttling

Memory Power and Thermal Throttling firmware setup page decoded from AMI HII/IFR resources.

Form ID: 0x2794
Records: 11
Parents: Memory Thermal Configuration
Path: Setup / Chipset / System Agent (SA) Configuration / Memory Configuration / Memory Thermal Configuration / Memory Power and Thermal Throttling

Record 2154

DDR PowerDown and idle counter

Firmware Value

BIOS: BIOS is in control of DDR CKE mode and idle timer value.

Firmware help text

BIOS: BIOS is in control of DDR CKE mode and idle timer value. PCODE: pcode will manage the modes.

Form: Memory Power and Thermal Throttling
Opcode: OneOf
Question ID: 0x7c8
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0x21f
Width: 1 byte(s)
Range: 0 to 1 step 0

Value	Label	Markers
`0`	PCODE
`1`	BIOS	Standard defaultManufacturing default

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Record 2155

For LPDDR Only: DDR PowerDown and idle counter

Firmware Value

For LPDDR Only: BIOS: BIOS is in control of DDR CKE mode and idle timer value.

Firmware help text

For LPDDR Only: BIOS: BIOS is in control of DDR CKE mode and idle timer value. PCODE: pcode will manage the modes.

Form: Memory Power and Thermal Throttling
Opcode: OneOf
Question ID: 0x7c9
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0x220
Width: 1 byte(s)
Range: 0 to 1 step 0

Value	Label	Markers
`0`	PCODE
`1`	BIOS	Standard defaultManufacturing default

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Record 2156

REFRESH_2X_MODE

Firmware Value

0- Disabled 1-iMC enables 2xRef when Warm and Hot 2- iMC enables 2xRef when Hot

Form: Memory Power and Thermal Throttling
Opcode: OneOf
Question ID: 0x7ca
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0x221
Width: 1 byte(s)
Range: 0 to 2 step 0

Value	Label	Markers
`0`	Disabled	Standard defaultManufacturing default
`1`	1- Enabled for WARM or HOT
`2`	2- Enabled HOT only

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Record 2157

SelfRefresh Enable

Firmware Value

Enable, Disable(Enable= Def)

Form: Memory Power and Thermal Throttling
Opcode: OneOf
Question ID: 0x7cb
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0x223
Width: 1 byte(s)
Range: 0 to 1 step 0

Value	Label	Markers
`0`	Disabled
`1`	Enabled	Standard defaultManufacturing default

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Record 2158

SelfRefresh IdleTimer

Firmware Value

range [64K-1;512]in DLCK800s, (512= Def)

Form: Memory Power and Thermal Throttling
Opcode: Numeric
Question ID: 0x7cc
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0x224
Width: 2 byte(s)
Range: 512 to 65535 step 1

Default store records

Store ID	Store label	Value	Option label
`0`	Standard	`512`

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Record 2159

Throttler CKEMin Defeature

Firmware Value

On, Off

Form: Memory Power and Thermal Throttling
Opcode: OneOf
Question ID: 0x7cd
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0x226
Width: 1 byte(s)
Range: 0 to 1 step 0

Value	Label	Markers
`1`	Enabled	Standard defaultManufacturing default
`0`	Disabled

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Record 2160

Throttler CKEMin Timer

Firmware Value

Timer value for CKEMin, range[255;0].

Firmware help text

Timer value for CKEMin, range[255;0]. Req'd min of SC_ROUND_T + BYTE_LENGTH (4)

Form: Memory Power and Thermal Throttling
Opcode: Numeric
Question ID: 0x7ce
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0x227
Width: 1 byte(s)
Range: 0 to 255 step 1

Default store records

Store ID	Store label	Value	Option label
`0`	Standard	`0`

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Record 2161

Allow Opp Ref Below Write Threhold

Firmware Value

Allow opportunistic refreshes while we don't exit power down.

Form: Memory Power and Thermal Throttling
Opcode: OneOf
Question ID: 0x7cf
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0x22a
Width: 1 byte(s)
Range: 0 to 1 step 0

Value	Label	Markers
`0`	Disabled	Standard defaultManufacturing default
`1`	Enabled

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Record 2162

Write Threshold

Firmware Value

Number of writes that can be accumulated while CKE is low before CKE is asserted.

Form: Memory Power and Thermal Throttling
Opcode: Numeric
Question ID: 0x7d0
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0x22b
Width: 1 byte(s)
Range: 0 to 63 step 1

Default store records

Store ID	Store label	Value	Option label
`0`	Standard	`0`

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Record 2163

For LPDDR Only: Throttler CKEMin Defeature

Firmware Value

For LPDDR Only: On, Off

Form: Memory Power and Thermal Throttling
Opcode: OneOf
Question ID: 0x7d1
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0x228
Width: 1 byte(s)
Range: 0 to 1 step 0

Value	Label	Markers
`1`	Enabled	Standard defaultManufacturing default
`0`	Disabled

Visibility / conditions

{"condition_id": 1014, "type": "SuppressIf", "offset": 413474, "expr": ["EqIdVal QuestionId: 0x118C, Value: 0x2", "Not"]}

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Record 2164

For LPDDR Only: Throttler CKEMin Timer

Firmware Value

For LPDDR Only: Timer value for CKEMin, range[255;0].

Firmware help text

For LPDDR Only: Timer value for CKEMin, range[255;0]. Req'd min of SC_ROUND_T + BYTE_LENGTH (4)

Form: Memory Power and Thermal Throttling
Opcode: Numeric
Question ID: 0x7d2
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0x229
Width: 1 byte(s)
Range: 0 to 255 step 1

Default store records

Store ID	Store label	Value	Option label
`0`	Standard	`0`

Visibility / conditions

{"condition_id": 1014, "type": "SuppressIf", "offset": 413474, "expr": ["EqIdVal QuestionId: 0x118C, Value: 0x2", "Not"]}

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