PCIe and Graphics

PCI Express Root Port 0

PCI Express Root Port 0 firmware setup page decoded from AMI HII/IFR resources.

Form ID: 0x2780
Records: 10
Parents: TCSS setup menu
Path: Setup / Chipset / System Agent (SA) Configuration / TCSS setup menu / PCI Express Root Port 0

Record 1784

PTM

Firmware Value

Enable/Disable Precision Time Measurement

Form: PCI Express Root Port 0
Opcode: OneOf
Question ID: 0x65f
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xc6
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 1785

LTR

Firmware Value

PCIE Latency Reporting Enable/Disable

Form: PCI Express Root Port 0
Opcode: OneOf
Question ID: 0x660
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xca
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 1786

Snoop Latency Override

Firmware Value

Snoop Latency Override for SA PCIE.

Firmware help text

Snoop Latency Override for SA PCIE. Disabled: Disable override. Manual: Manually enter override values. Auto (default): Maintain default BIOS flow.

Form: PCI Express Root Port 0
Opcode: OneOf
Question ID: 0x661
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xce
Width: 1 byte(s)
Range: 0 to 1 step 0

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

Visibility / conditions

{"condition_id": 911, "type": "SuppressIf", "offset": 397656, "expr": ["EqIdVal QuestionId: 0x660, Value: 0x0"]}

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Record 1787

Snoop Latency Value

Firmware Value

LTR Snoop Latency value of SA PCIE

Form: PCI Express Root Port 0
Opcode: Numeric
Question ID: 0x662
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xd6
Width: 2 byte(s)
Range: 0 to 1023 step 1

Default store records

Store ID	Store label	Value	Option label
`0`	Standard	`200`

Visibility / conditions

{"condition_id": 911, "type": "SuppressIf", "offset": 397656, "expr": ["EqIdVal QuestionId: 0x660, Value: 0x0"]}
{"condition_id": 912, "type": "SuppressIf", "offset": 397697, "expr": ["EqIdVal QuestionId: 0x661, Value: 0x1", "Not"]}

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Record 1788

Snoop Latency Multiplier

Firmware Value

LTR Snoop Latency Multiplier of SA PCIE

Form: PCI Express Root Port 0
Opcode: OneOf
Question ID: 0x663
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xd2
Width: 1 byte(s)
Range: 0 to 5 step 0

Value	Label	Markers
`0`	1 ns
`1`	32 ns
`2`	1024 ns	Standard defaultManufacturing default
`3`	32768 ns
`4`	1048576 ns
`5`	33554432 ns

Visibility / conditions

{"condition_id": 911, "type": "SuppressIf", "offset": 397656, "expr": ["EqIdVal QuestionId: 0x660, Value: 0x0"]}
{"condition_id": 912, "type": "SuppressIf", "offset": 397697, "expr": ["EqIdVal QuestionId: 0x661, Value: 0x1", "Not"]}

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Record 1789

Non Snoop Latency Override

Firmware Value

Non Snoop Latency Override for SA PCIE.

Firmware help text

Non Snoop Latency Override for SA PCIE. Disabled: Disable override. Manual: Manually enter override values. Auto (default): Maintain default BIOS flow.

Form: PCI Express Root Port 0
Opcode: OneOf
Question ID: 0x664
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xde
Width: 1 byte(s)
Range: 0 to 1 step 0

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

Visibility / conditions

{"condition_id": 911, "type": "SuppressIf", "offset": 397656, "expr": ["EqIdVal QuestionId: 0x660, Value: 0x0"]}

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Record 1790

Non Snoop Latency Value

Firmware Value

LTR Non Snoop Latency value of PCH PCIE

Form: PCI Express Root Port 0
Opcode: Numeric
Question ID: 0x665
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xe6
Width: 2 byte(s)
Range: 0 to 1023 step 1

Default store records

Store ID	Store label	Value	Option label
`0`	Standard	`200`

Visibility / conditions

{"condition_id": 911, "type": "SuppressIf", "offset": 397656, "expr": ["EqIdVal QuestionId: 0x660, Value: 0x0"]}
{"condition_id": 913, "type": "SuppressIf", "offset": 397834, "expr": ["EqIdVal QuestionId: 0x664, Value: 0x1", "Not"]}

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Record 1791

Non Snoop Latency Multiplier

Firmware Value

LTR Non Snoop Latency Multiplier of SA PCIE

Form: PCI Express Root Port 0
Opcode: OneOf
Question ID: 0x666
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xe2
Width: 1 byte(s)
Range: 0 to 5 step 0

Value	Label	Markers
`0`	1 ns
`1`	32 ns
`2`	1024 ns	Standard defaultManufacturing default
`3`	32768 ns
`4`	1048576 ns
`5`	33554432 ns

Visibility / conditions

{"condition_id": 911, "type": "SuppressIf", "offset": 397656, "expr": ["EqIdVal QuestionId: 0x660, Value: 0x0"]}
{"condition_id": 913, "type": "SuppressIf", "offset": 397834, "expr": ["EqIdVal QuestionId: 0x664, Value: 0x1", "Not"]}

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Record 1792

Force LTR Override

Firmware Value

Force LTR Override for ITBT PCIE.

Firmware help text

Force LTR Override for ITBT PCIE. Disabled: LTR override values will not be forced. Enable: LTR override values will be forced and LTR messages from the device will be ignored.

Form: PCI Express Root Port 0
Opcode: OneOf
Question ID: 0x667
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xee
Width: 1 byte(s)
Range: 0 to 1 step 0

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

Visibility / conditions

{"condition_id": 911, "type": "SuppressIf", "offset": 397656, "expr": ["EqIdVal QuestionId: 0x660, Value: 0x0"]}

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Record 1793

LTR Lock

Firmware Value

PCIE LTR Configuration Lock

Form: PCI Express Root Port 0
Opcode: OneOf
Question ID: 0x668
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xf2
Width: 1 byte(s)
Range: 0 to 1 step 0

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

Visibility / conditions

{"condition_id": 911, "type": "SuppressIf", "offset": 397656, "expr": ["EqIdVal QuestionId: 0x660, Value: 0x0"]}

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