PCIe and Graphics

PCI Express Root Port 1

PCI Express Root Port 1 firmware setup page decoded from AMI HII/IFR resources.

Form ID: 0x2781
Records: 10
Parents: TCSS setup menu
Path: Setup / Chipset / System Agent (SA) Configuration / TCSS setup menu / PCI Express Root Port 1

Record 1794

PTM

Firmware Value

Enable/Disable Precision Time Measurement

Form: PCI Express Root Port 1
Opcode: OneOf
Question ID: 0x669
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xc7
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 1795

LTR

Firmware Value

PCIE Latency Reporting Enable/Disable

Form: PCI Express Root Port 1
Opcode: OneOf
Question ID: 0x66a
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xcb
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 1796

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 1
Opcode: OneOf
Question ID: 0x66b
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xcf
Width: 1 byte(s)
Range: 0 to 1 step 0

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

Visibility / conditions

{"condition_id": 914, "type": "SuppressIf", "offset": 398107, "expr": ["EqIdVal QuestionId: 0x66A, Value: 0x0"]}

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Record 1797

Snoop Latency Value

Firmware Value

LTR Snoop Latency value of SA PCIE

Form: PCI Express Root Port 1
Opcode: Numeric
Question ID: 0x66c
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xd8
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": 914, "type": "SuppressIf", "offset": 398107, "expr": ["EqIdVal QuestionId: 0x66A, Value: 0x0"]}
{"condition_id": 915, "type": "SuppressIf", "offset": 398148, "expr": ["EqIdVal QuestionId: 0x66B, Value: 0x1", "Not"]}

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Record 1798

Snoop Latency Multiplier

Firmware Value

LTR Snoop Latency Multiplier of SA PCIE

Form: PCI Express Root Port 1
Opcode: OneOf
Question ID: 0x66d
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xd3
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": 914, "type": "SuppressIf", "offset": 398107, "expr": ["EqIdVal QuestionId: 0x66A, Value: 0x0"]}
{"condition_id": 915, "type": "SuppressIf", "offset": 398148, "expr": ["EqIdVal QuestionId: 0x66B, Value: 0x1", "Not"]}

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Record 1799

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 1
Opcode: OneOf
Question ID: 0x66e
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xdf
Width: 1 byte(s)
Range: 0 to 1 step 0

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

Visibility / conditions

{"condition_id": 914, "type": "SuppressIf", "offset": 398107, "expr": ["EqIdVal QuestionId: 0x66A, Value: 0x0"]}

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Record 1800

Non Snoop Latency Value

Firmware Value

LTR Non Snoop Latency value of PCH PCIE

Form: PCI Express Root Port 1
Opcode: Numeric
Question ID: 0x66f
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xe8
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": 914, "type": "SuppressIf", "offset": 398107, "expr": ["EqIdVal QuestionId: 0x66A, Value: 0x0"]}
{"condition_id": 916, "type": "SuppressIf", "offset": 398285, "expr": ["EqIdVal QuestionId: 0x66E, Value: 0x1", "Not"]}

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Record 1801

Non Snoop Latency Multiplier

Firmware Value

LTR Non Snoop Latency Multiplier of SA PCIE

Form: PCI Express Root Port 1
Opcode: OneOf
Question ID: 0x670
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xe3
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": 914, "type": "SuppressIf", "offset": 398107, "expr": ["EqIdVal QuestionId: 0x66A, Value: 0x0"]}
{"condition_id": 916, "type": "SuppressIf", "offset": 398285, "expr": ["EqIdVal QuestionId: 0x66E, Value: 0x1", "Not"]}

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Record 1802

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 1
Opcode: OneOf
Question ID: 0x671
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xef
Width: 1 byte(s)
Range: 0 to 1 step 0

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

Visibility / conditions

{"condition_id": 914, "type": "SuppressIf", "offset": 398107, "expr": ["EqIdVal QuestionId: 0x66A, Value: 0x0"]}

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Record 1803

LTR Lock

Firmware Value

PCIE LTR Configuration Lock

Form: PCI Express Root Port 1
Opcode: OneOf
Question ID: 0x672
VarStore: SaSetup
VarStore GUID: 72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset: 0xf3
Width: 1 byte(s)
Range: 0 to 1 step 0

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

Visibility / conditions

{"condition_id": 914, "type": "SuppressIf", "offset": 398107, "expr": ["EqIdVal QuestionId: 0x66A, Value: 0x0"]}

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