Leo-Patch 1.6 · Q1HY MoDT · Observations 14 October 2026
Firmware Menus
TCSS setup menu
TCSS setup menu firmware setup page decoded from AMI HII/IFR resources.
- Form ID
- 0x279c
- Records
- 19
- Path
- Setup / Chipset / System Agent (SA) Configuration / TCSS setup menu
Record 2802
TCSS xHCI Support
Firmware Value
Enable/Disable TCSS xHCI
- Opcode
- OneOf
- Question ID
- 0x2774
- VarStore
- SaSetup
- VarStore GUID
- 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
- Offset
- 0xbe
- Width
- 1 byte(s)
- Range
- 0 to 1 step 0
Permalink
Record 2803
TCSS USB Configuration
Menu Link
SA TCSS USB Configuration settings
- Opcode
- Ref
- Question ID
- 0xa50
Visibility / conditions
- {"condition_id": 1217, "type": "SuppressIf", "offset": 451108, "expr": ["EqIdVal QuestionId: 0x2774, Value: 0x0"]}
Permalink
Record 2804
ITBT PCIE0 Root Port
Firmware Value
Enable/Disable ITBT PCIE ROOT
- Opcode
- OneOf
- Question ID
- 0x2775
- VarStore
- SaSetup
- VarStore GUID
- 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
- Offset
- 0xba
- Width
- 1 byte(s)
- Range
- 0 to 1 step 0
Visibility / conditions
- {"condition_id": 1217, "type": "SuppressIf", "offset": 451108, "expr": ["EqIdVal QuestionId: 0x2774, Value: 0x0"]}
- {"condition_id": 1218, "type": "SuppressIf", "offset": 451131, "expr": ["QuestionRef1 QuestionId: 0x11E2", "Uint8 Value: 0x1", "GreaterEqual", "Not"]}
Permalink
Record 2805
ITBT PCIE1 Root Port
Firmware Value
Enable/Disable ITBT PCIE ROOT
- Opcode
- OneOf
- Question ID
- 0x2776
- VarStore
- SaSetup
- VarStore GUID
- 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
- Offset
- 0xbb
- Width
- 1 byte(s)
- Range
- 0 to 1 step 0
Visibility / conditions
- {"condition_id": 1217, "type": "SuppressIf", "offset": 451108, "expr": ["EqIdVal QuestionId: 0x2774, Value: 0x0"]}
- {"condition_id": 1219, "type": "SuppressIf", "offset": 451181, "expr": ["QuestionRef1 QuestionId: 0x11E2", "Uint8 Value: 0x2", "GreaterEqual", "Not"]}
Permalink
Record 2806
ITBT PCIE2 Root Port
Firmware Value
Enable/Disable ITBT PCIE ROOT
- Opcode
- OneOf
- Question ID
- 0x2777
- VarStore
- SaSetup
- VarStore GUID
- 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
- Offset
- 0xbc
- Width
- 1 byte(s)
- Range
- 0 to 1 step 0
Visibility / conditions
- {"condition_id": 1217, "type": "SuppressIf", "offset": 451108, "expr": ["EqIdVal QuestionId: 0x2774, Value: 0x0"]}
- {"condition_id": 1220, "type": "SuppressIf", "offset": 451231, "expr": ["QuestionRef1 QuestionId: 0x11E2", "Uint8 Value: 0x3", "GreaterEqual", "Not"]}
Permalink
Record 2807
ITBT PCIE3 Root Port
Firmware Value
Enable/Disable ITBT PCIE ROOT
- Opcode
- OneOf
- Question ID
- 0x2778
- VarStore
- SaSetup
- VarStore GUID
- 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
- Offset
- 0xbd
- Width
- 1 byte(s)
- Range
- 0 to 1 step 0
Visibility / conditions
- {"condition_id": 1217, "type": "SuppressIf", "offset": 451108, "expr": ["EqIdVal QuestionId: 0x2774, Value: 0x0"]}
- {"condition_id": 1221, "type": "SuppressIf", "offset": 451281, "expr": ["QuestionRef1 QuestionId: 0x11E2", "Uint8 Value: 0x4", "GreaterEqual", "Not"]}
Permalink
Enable/Disable ITBT DMA0
- Opcode
- OneOf
- Question ID
- 0xa51
- VarStore
- SaSetup
- VarStore GUID
- 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
- Offset
- 0xc0
- Width
- 1 byte(s)
- Range
- 0 to 1 step 0
Visibility / conditions
- {"condition_id": 1217, "type": "SuppressIf", "offset": 451108, "expr": ["EqIdVal QuestionId: 0x2774, Value: 0x0"]}
- {"condition_id": 1222, "type": "SuppressIf", "offset": 451331, "expr": ["QuestionRef1 QuestionId: 0x11E2", "Uint8 Value: 0x1", "GreaterEqual", "Not"]}
Permalink
Enable/Disable ITBT DMA1
- Opcode
- OneOf
- Question ID
- 0xa52
- VarStore
- SaSetup
- VarStore GUID
- 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
- Offset
- 0xc1
- Width
- 1 byte(s)
- Range
- 0 to 1 step 0
Visibility / conditions
- {"condition_id": 1217, "type": "SuppressIf", "offset": 451108, "expr": ["EqIdVal QuestionId: 0x2774, Value: 0x0"]}
- {"condition_id": 1223, "type": "SuppressIf", "offset": 451381, "expr": ["QuestionRef1 QuestionId: 0x11E2", "Uint8 Value: 0x3", "GreaterEqual", "Not"]}
Permalink
Record 2810
VCCST status of IOM
Firmware Value
Enables/Disables VCCST.
Firmware help text
Enables/Disables VCCST.
Enable: Sends VCCST ON message to EC or PMC
Disable: Sends VCCST OFF message to EC or PMC
- Opcode
- OneOf
- Question ID
- 0xa53
- VarStore
- SaSetup
- VarStore GUID
- 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
- Offset
- 0xc2
- Width
- 1 byte(s)
- Range
- 0 to 1 step 0
Visibility / conditions
- {"condition_id": 1217, "type": "SuppressIf", "offset": 451108, "expr": ["EqIdVal QuestionId: 0x2774, Value: 0x0"]}
Permalink
Record 2811
D3 Cold Enable/Disable
Firmware Value
Enables/Disables D3 Cold.
Firmware help text
Enables/Disables D3 Cold.
Enable: D3 cold support for IOM is enabled
Disable: D3 cold support for IOM is Disabled
- Opcode
- OneOf
- Question ID
- 0xa54
- VarStore
- SaSetup
- VarStore GUID
- 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
- Offset
- 0xc4
- Width
- 1 byte(s)
- Range
- 0 to 1 step 0
Visibility / conditions
- {"condition_id": 1217, "type": "SuppressIf", "offset": 451108, "expr": ["EqIdVal QuestionId: 0x2774, Value: 0x0"]}
Permalink
Enables/Disables D3 Hot.
Firmware help text
Enables/Disables D3 Hot.
Enable: D3 Hot support for IOM is enabled
Disable: D3 Hot support for IOM is Disabled
- Opcode
- OneOf
- Question ID
- 0xa55
- VarStore
- SaSetup
- VarStore GUID
- 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
- Offset
- 0xc5
- Width
- 1 byte(s)
- Range
- 0 to 1 step 0
Visibility / conditions
- {"condition_id": 1217, "type": "SuppressIf", "offset": 451108, "expr": ["EqIdVal QuestionId: 0x2774, Value: 0x0"]}
Permalink
Record 2813
Tc C-State Limit
Firmware Value
BIOS mailbox to limit deepest TCx state
- Opcode
- OneOf
- Question ID
- 0xa56
- VarStore
- SaSetup
- VarStore GUID
- 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
- Offset
- 0x3e8
- Width
- 1 byte(s)
- Range
- 0 to 10 step 0
Visibility / conditions
- {"condition_id": 1217, "type": "SuppressIf", "offset": 451108, "expr": ["EqIdVal QuestionId: 0x2774, Value: 0x0"]}
Permalink
Record 2814
TC Cold Power Saving Factor
Firmware Value
TC Cold Power Saving Factor Switch
- Opcode
- OneOf
- Question ID
- 0xa57
- VarStore
- SaSetup
- VarStore GUID
- 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
- Offset
- 0x431
- Width
- 1 byte(s)
- Range
- 0 to 1 step 0
Visibility / conditions
- {"condition_id": 1217, "type": "SuppressIf", "offset": 451108, "expr": ["EqIdVal QuestionId: 0x2774, Value: 0x0"]}
Permalink
Record 2815
IOM before entering TC cold
Firmware Value
Represent Y in seconds for IOM before entering TC cold
- Opcode
- Numeric
- Question ID
- 0xa58
- VarStore
- SaSetup
- VarStore GUID
- 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
- Offset
- 0x433
- Width
- 1 byte(s)
- Range
- 0 to 255 step 0
Visibility / conditions
- {"condition_id": 1217, "type": "SuppressIf", "offset": 451108, "expr": ["EqIdVal QuestionId: 0x2774, Value: 0x0"]}
- {"condition_id": 1224, "type": "SuppressIf", "offset": 451644, "expr": ["EqIdVal QuestionId: 0xA57, Value: 0x0"]}
Permalink
Record 2816
IOM stay in TC cold
Firmware Value
Represent X in seconds for IOM stays in TC cold
- Opcode
- Numeric
- Question ID
- 0xa59
- VarStore
- SaSetup
- VarStore GUID
- 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
- Offset
- 0x432
- Width
- 1 byte(s)
- Range
- 0 to 255 step 0
Visibility / conditions
- {"condition_id": 1217, "type": "SuppressIf", "offset": 451108, "expr": ["EqIdVal QuestionId: 0x2774, Value: 0x0"]}
- {"condition_id": 1224, "type": "SuppressIf", "offset": 451644, "expr": ["EqIdVal QuestionId: 0xA57, Value: 0x0"]}
Permalink
Record 2817
PCI Express Root Port 0
Menu Link
PCI Express Root Port Settings.
- Opcode
- Ref
- Question ID
- 0xa5a
Visibility / conditions
- {"condition_id": 1217, "type": "SuppressIf", "offset": 451108, "expr": ["EqIdVal QuestionId: 0x2774, Value: 0x0"]}
- {"condition_id": 1225, "type": "SuppressIf", "offset": 451704, "expr": ["QuestionRef1 QuestionId: 0x11E2", "Uint8 Value: 0x1", "GreaterEqual", "Not"]}
- {"condition_id": 1226, "type": "SuppressIf", "offset": 451719, "expr": ["EqIdVal QuestionId: 0x2775, Value: 0x0"]}
Permalink
Record 2818
PCI Express Root Port 1
Menu Link
PCI Express Root Port Settings.
- Opcode
- Ref
- Question ID
- 0xa5b
Visibility / conditions
- {"condition_id": 1217, "type": "SuppressIf", "offset": 451108, "expr": ["EqIdVal QuestionId: 0x2774, Value: 0x0"]}
- {"condition_id": 1227, "type": "SuppressIf", "offset": 451746, "expr": ["QuestionRef1 QuestionId: 0x11E2", "Uint8 Value: 0x2", "GreaterEqual", "Not"]}
- {"condition_id": 1228, "type": "SuppressIf", "offset": 451761, "expr": ["EqIdVal QuestionId: 0x2776, Value: 0x0"]}
Permalink
Record 2819
PCI Express Root Port 2
Menu Link
PCI Express Root Port Settings.
- Opcode
- Ref
- Question ID
- 0xa5c
Visibility / conditions
- {"condition_id": 1217, "type": "SuppressIf", "offset": 451108, "expr": ["EqIdVal QuestionId: 0x2774, Value: 0x0"]}
- {"condition_id": 1229, "type": "SuppressIf", "offset": 451788, "expr": ["QuestionRef1 QuestionId: 0x11E2", "Uint8 Value: 0x3", "GreaterEqual", "Not"]}
- {"condition_id": 1230, "type": "SuppressIf", "offset": 451803, "expr": ["EqIdVal QuestionId: 0x2777, Value: 0x0"]}
Permalink
Record 2820
PCI Express Root Port 3
Menu Link
PCI Express Root Port Settings.
- Opcode
- Ref
- Question ID
- 0xa5d
Visibility / conditions
- {"condition_id": 1217, "type": "SuppressIf", "offset": 451108, "expr": ["EqIdVal QuestionId: 0x2774, Value: 0x0"]}
- {"condition_id": 1231, "type": "SuppressIf", "offset": 451830, "expr": ["QuestionRef1 QuestionId: 0x11E2", "Uint8 Value: 0x4", "GreaterEqual", "Not"]}
- {"condition_id": 1232, "type": "SuppressIf", "offset": 451845, "expr": ["EqIdVal QuestionId: 0x2778, Value: 0x0"]}
Permalink