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

CPU, Power, Memory

Memory Training Algorithms

Memory Training Algorithms firmware setup page decoded from AMI HII/IFR resources.

Form ID
0x2791
Records
54
Path
Setup / Chipset / System Agent (SA) Configuration / Memory Configuration / Memory Training Algorithms

Record 2086

Early Command Training

Firmware Value

Early Command Training

Opcode
OneOf
Question ID
0x785
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x1ff
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 2087

SenseAmp Offset Training

Firmware Value

SenseAmp Offset Training

Opcode
OneOf
Question ID
0x786
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x200
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Record 2088

Early ReadMPR Timing Centering 2D

Firmware Value

Firmware value selected from the documented options.

Opcode
OneOf
Question ID
0x787
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x201
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 2089

Read MPR Training

Firmware Value

Read MPR Training

Opcode
OneOf
Question ID
0x788
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x202
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Record 2090

Receive Enable Training

Firmware Value

Receive Enable Training

Opcode
OneOf
Question ID
0x789
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x203
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 2091

Jedec Write Leveling

Firmware Value

Jedec Write Leveling

Opcode
OneOf
Question ID
0x78a
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x204
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 2092

Early Write Time Centering 2D

Firmware Value

Early Write Time Centering 2D

Opcode
OneOf
Question ID
0x78b
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x205
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 2093

Early Read Time Centering 2D

Firmware Value

Firmware value selected from the documented options.

Opcode
OneOf
Question ID
0x78c
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x206
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 2094

Write Timing Centering 1D

Firmware Value

Write Timing Centering 1D

Opcode
OneOf
Question ID
0x78d
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x207
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 2095

Write Voltage Centering 1D

Firmware Value

Firmware value selected from the documented options.

Opcode
OneOf
Question ID
0x78e
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x208
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 2096

Read Timing Centering 1D

Firmware Value

Read Timing Centering 1D

Opcode
OneOf
Question ID
0x78f
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x209
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Record 2097

Dimm ODT Training*

Firmware Value

Dimm On-Die Termination Training

Opcode
OneOf
Question ID
0x790
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x20a
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 2098

Max RTT_WR

Firmware Value

Caps the maximum RTT_WR in power training.

Opcode
OneOf
Question ID
0x791
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x244
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0ODT Off
1120 OhmsStandard defaultManufacturing default

Visibility / conditions

  • {"condition_id": 1005, "type": "GrayOutIf", "offset": 411166, "expr": ["EqIdVal QuestionId: 0x790, Value: 0x0"]}

Record 2099

DIMM RON Training*

Firmware Value

DIMM RON Training

Opcode
OneOf
Question ID
0x792
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x20b
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Record 2100

Write Drive Strength/Equalization 2D*

Firmware Value

Firmware value selected from the documented options.

Opcode
OneOf
Question ID
0x793
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x20c
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Record 2101

Write Slew Rate Training*

Firmware Value

Write Slew Rate Training

Opcode
OneOf
Question ID
0x794
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x20d
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 2102

Read ODT Training*

Firmware Value

Read On-Die Termination Training

Opcode
OneOf
Question ID
0x795
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x20e
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 2103

Read Equalization Training*

Firmware Value

Read Equalization Training

Opcode
OneOf
Question ID
0x796
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x20f
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 2104

Read Amplifier Training*

Firmware Value

Read Amplifier Training

Opcode
OneOf
Question ID
0x797
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x210
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 2105

Write Timing Centering 2D

Firmware Value

Write Dq-Dqs Timing Centering 2D

Opcode
OneOf
Question ID
0x798
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x211
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 2106

Read Timing Centering 2D

Firmware Value

Read Dq-Dqs Timing Centering 2D

Opcode
OneOf
Question ID
0x799
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x212
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 2107

Command Voltage Centering

Firmware Value

Command Voltage Centering

Opcode
OneOf
Question ID
0x79a
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x213
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 2108

Write Voltage Centering 2D

Firmware Value

Write Voltage Centering 2D

Opcode
OneOf
Question ID
0x79b
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x214
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 2109

Read Voltage Centering 2D

Firmware Value

Read Voltage Centering 2D

Opcode
OneOf
Question ID
0x79c
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x215
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 2110

Late Command Training

Firmware Value

Late Command Training

Opcode
OneOf
Question ID
0x79d
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x216
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Record 2111

Round Trip Latency

Firmware Value

Round Trip Latency Training

Opcode
OneOf
Question ID
0x79e
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x217
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 2112

Turn Around Timing Training

Firmware Value

Turn Around Timing Training

Opcode
OneOf
Question ID
0x79f
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x218
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Record 2113

CMD CTL CLK Slew Rate

Firmware Value

CMD CTL CLK Slew Rate

Opcode
OneOf
Question ID
0x7a0
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x24e
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 2114

CMD/CTL DS & E 2D

Firmware Value

CMD/CTL Drive Strength and Equalization 2D

Opcode
OneOf
Question ID
0x7a1
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x24d
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 2115

Read Voltage Centering 1D

Firmware Value

Read Voltage Centering 1D

Opcode
OneOf
Question ID
0x7a2
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x248
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 2116

TxDqTCO Comp Training*

Firmware Value

TxDqTCO Comp Training*

Opcode
OneOf
Question ID
0x7a3
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x249
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 2117

ClkTCO Comp Training*

Firmware Value

ClkTCO Comp Training*

Opcode
OneOf
Question ID
0x7a4
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x24c
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 2118

TxDqsTCO Comp Training*

Firmware Value

TxDqsTCO Comp Training*

Opcode
OneOf
Question ID
0x7a5
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x24a
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 2119

VccDLL Bypass Training

Firmware Value

VccDLL Bypass Training

Opcode
OneOf
Question ID
0x7a6
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x24b
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 2120

CMD/CTL Drive Strength Up/Dn 2D

Firmware Value

CMD/CTL Drive Strength Up/Dn 2D

Opcode
OneOf
Question ID
0x7a7
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x24f
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 2121

DIMM CA ODT Training

Firmware Value

DIMM CA ODT Training

Opcode
OneOf
Question ID
0x7a8
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x250
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 2122

PanicVttDnLp Training*

Firmware Value

PanicVttDnLp Training*

Opcode
OneOf
Question ID
0x7a9
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x251
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 2123

Read Vref Decap Training*

Firmware Value

Read Vref Decap Training*

Opcode
OneOf
Question ID
0x7aa
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x252
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 2124

Vddq Training

Firmware Value

Vddq Training

Opcode
OneOf
Question ID
0x7ab
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x253
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Record 2125

Duty Cycle Correction Training

Firmware Value

Duty Cycle Correction Training

Opcode
OneOf
Question ID
0x7ac
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x254
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 2126

Rank Margin Tool Per Bit

Firmware Value

Rank Margin Tool Per Bit

Opcode
OneOf
Question ID
0x7ad
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x255
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Record 2127

DIMM DFE Training

Firmware Value

DIMM DFE Training

Opcode
OneOf
Question ID
0x7ae
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x404
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 2128

EARLY DIMM DFE Training

Firmware Value

EARLY DIMM DFE Training

Opcode
OneOf
Question ID
0x2773
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x477
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1EnabledStandard default

Record 2129

Tx Dqs Dcc Training

Firmware Value

Tx Dqs duty cycle Training

Opcode
OneOf
Question ID
0x7af
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x434
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 2130

DRAM DCA Training

Firmware Value

DRAM DCA Training

Opcode
OneOf
Question ID
0x7b0
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x468
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 2131

Write Driver Strength Training

Firmware Value

Write Driver Strength Training

Opcode
OneOf
Question ID
0x7b1
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x476
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 2132

Rank Margin Tool

Firmware Value

Rank Margin Tool Training

Opcode
OneOf
Question ID
0x7b2
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x219
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Record 2133

Memory Test

Firmware Value

Memory Test Training

Opcode
OneOf
Question ID
0x7b3
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x21a
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Record 2134

DIMM SPD Alias Test

Firmware Value

Test to determine if the SPD has been corrupted to cause memory aliasing.

Opcode
OneOf
Question ID
0x7b4
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x21b
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Record 2135

Receive Enable Centering 1D

Firmware Value

Receive Enable Centering 1D

Opcode
OneOf
Question ID
0x7b5
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x21c
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 2136

Retrain Margin Check

Firmware Value

Retrain Margin Check

Opcode
OneOf
Question ID
0x7b6
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x21d
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Record 2137

Write Drive Strength Up/Dn independently

Firmware Value

Write Drive Strength Up/Dn independently

Opcode
OneOf
Question ID
0x7b7
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x21e
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 2138

Margin Check Limit

Firmware Value

Checks Margin to Limit to see if next boot memory needs to be retrain

Opcode
OneOf
Question ID
0x7b8
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x3f1
Width
1 byte(s)
Range
0 to 3 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1L1
2L2
3Both

Record 2139

Margin Limit Check L2

Firmware Value

L2 check threshold is scale of L1 check.

Firmware help text

L2 check threshold is scale of L1 check. Ex. 200 is 2 x L1 Check

Opcode
Numeric
Question ID
0x7b9
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x3f2
Width
2 byte(s)
Range
1 to 300 step 1

Default store records

Store IDStore labelValueOption label
0Standard100

Visibility / conditions

  • {"condition_id": 1006, "type": "GrayOutIf", "offset": 412543, "expr": ["EqIdVal QuestionId: 0x7B8, Value: 0x0", "EqIdVal QuestionId: 0x7B8, Value: 0x1", "Or"]}