diff --git a/src/mainboard/amd/bettong/fchec.c b/src/mainboard/amd/bettong/fchec.c
index 532db79f27..ea7dc569c7 100644
--- a/src/mainboard/amd/bettong/fchec.c
+++ b/src/mainboard/amd/bettong/fchec.c
@@ -28,7 +28,7 @@ void agesawrapper_fchecfancontrolservice()
 	LateParams.Imc.EcStruct.MsgFun81Zone0MsgReg5 = 0x04;
 	LateParams.Imc.EcStruct.MsgFun81Zone0MsgReg6 = 0x98; /* SMBUS Address for SMBUS based temperature sensor such as SB-TSI and ADM1032 */
 	LateParams.Imc.EcStruct.MsgFun81Zone0MsgReg7 = 0x01;
-	LateParams.Imc.EcStruct.MsgFun81Zone0MsgReg8 = 0x01; /* PWM steping rate in unit of PWM level percentage */
+	LateParams.Imc.EcStruct.MsgFun81Zone0MsgReg8 = 0x01; /* PWM stepping rate in unit of PWM level percentage */
 	LateParams.Imc.EcStruct.MsgFun81Zone0MsgReg9 = 0x00;
 
 	/* IMC Fan Policy temperature thresholds */
diff --git a/src/mainboard/amd/db-ft3b-lc/BiosCallOuts.c b/src/mainboard/amd/db-ft3b-lc/BiosCallOuts.c
index 056daa248b..ebdea42990 100644
--- a/src/mainboard/amd/db-ft3b-lc/BiosCallOuts.c
+++ b/src/mainboard/amd/db-ft3b-lc/BiosCallOuts.c
@@ -156,7 +156,7 @@ static void oem_fan_control(FCH_DATA_BLOCK *FchParams)
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg5 = 0x00;
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg6 = 0x98;    /* SMBUS Address for SMBUS based temperature sensor such as SB-TSI and ADM1032 */
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg7 = 2;
-		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg8 = 0;       /* PWM steping rate in unit of PWM level percentage */
+		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg8 = 0;       /* PWM stepping rate in unit of PWM level percentage */
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg9 = 0;
 
 		/* IMC Fan Policy temperature thresholds */
@@ -193,7 +193,7 @@ static void oem_fan_control(FCH_DATA_BLOCK *FchParams)
 		FchParams->Imc.EcStruct.MsgFun81Zone1MsgReg5 = 0x00;
 		FchParams->Imc.EcStruct.MsgFun81Zone1MsgReg6 = 0x90;    /* SMBUS Address for SMBUS based temperature sensor such as SB-TSI and ADM1032 */
 		FchParams->Imc.EcStruct.MsgFun81Zone1MsgReg7 = 0;
-		FchParams->Imc.EcStruct.MsgFun81Zone1MsgReg8 = 0;       /* PWM steping rate in unit of PWM level percentage */
+		FchParams->Imc.EcStruct.MsgFun81Zone1MsgReg8 = 0;       /* PWM stepping rate in unit of PWM level percentage */
 		FchParams->Imc.EcStruct.MsgFun81Zone1MsgReg9 = 0;
 
 		FchParams->Imc.EcStruct.MsgFun83Zone1MsgReg0 = 0x00;
@@ -228,7 +228,7 @@ static void oem_fan_control(FCH_DATA_BLOCK *FchParams)
 		FchParams->Imc.EcStruct.MsgFun81Zone2MsgReg5 = 0x00;
 		FchParams->Imc.EcStruct.MsgFun81Zone2MsgReg6 = 0x98;    /* SMBUS Address for SMBUS based temperature sensor such as SB-TSI and ADM1032 */
 		FchParams->Imc.EcStruct.MsgFun81Zone2MsgReg7 = 2;
-		FchParams->Imc.EcStruct.MsgFun81Zone2MsgReg8 = 5;       /* PWM steping rate in unit of PWM level percentage */
+		FchParams->Imc.EcStruct.MsgFun81Zone2MsgReg8 = 5;       /* PWM stepping rate in unit of PWM level percentage */
 		FchParams->Imc.EcStruct.MsgFun81Zone2MsgReg9 = 0;
 
 		FchParams->Imc.EcStruct.MsgFun81Zone3MsgReg0 = 0x00;
@@ -239,7 +239,7 @@ static void oem_fan_control(FCH_DATA_BLOCK *FchParams)
 		FchParams->Imc.EcStruct.MsgFun81Zone3MsgReg5 = 0x00;
 		FchParams->Imc.EcStruct.MsgFun81Zone3MsgReg6 = 0x0;     /* SMBUS Address for SMBUS based temperature sensor such as SB-TSI and ADM1032 */
 		FchParams->Imc.EcStruct.MsgFun81Zone3MsgReg7 = 0;
-		FchParams->Imc.EcStruct.MsgFun81Zone3MsgReg8 = 0;       /* PWM steping rate in unit of PWM level percentage */
+		FchParams->Imc.EcStruct.MsgFun81Zone3MsgReg8 = 0;       /* PWM stepping rate in unit of PWM level percentage */
 		FchParams->Imc.EcStruct.MsgFun81Zone3MsgReg9 = 0;
 
 		/* IMC Function */
diff --git a/src/mainboard/amd/lamar/BiosCallOuts.c b/src/mainboard/amd/lamar/BiosCallOuts.c
index 8e49e8e966..30dc0d6d63 100644
--- a/src/mainboard/amd/lamar/BiosCallOuts.c
+++ b/src/mainboard/amd/lamar/BiosCallOuts.c
@@ -173,7 +173,7 @@ static void oem_fan_control(FCH_DATA_BLOCK *FchParams)
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg5 = 0x54;
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg6 = 0x98;    /* SMBUS Address for SMBUS based temperature sensor such as SB-TSI and ADM1032 */
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg7 = 0x02;
-		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg8 = 0x01;    /* PWM steping rate in unit of PWM level percentage */
+		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg8 = 0x01;    /* PWM stepping rate in unit of PWM level percentage */
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg9 = 0x00;
 
 		/* IMC Fan Policy temperature thresholds */
@@ -210,7 +210,7 @@ static void oem_fan_control(FCH_DATA_BLOCK *FchParams)
 		FchParams->Imc.EcStruct.MsgFun81Zone1MsgReg5 = 0x00;
 		FchParams->Imc.EcStruct.MsgFun81Zone1MsgReg6 = 0x90;    /* SMBUS Address for SMBUS based temperature sensor such as SB-TSI and ADM1032 */
 		FchParams->Imc.EcStruct.MsgFun81Zone1MsgReg7 = 0;
-		FchParams->Imc.EcStruct.MsgFun81Zone1MsgReg8 = 0;       /* PWM steping rate in unit of PWM level percentage */
+		FchParams->Imc.EcStruct.MsgFun81Zone1MsgReg8 = 0;       /* PWM stepping rate in unit of PWM level percentage */
 		FchParams->Imc.EcStruct.MsgFun81Zone1MsgReg9 = 0;
 
 		FchParams->Imc.EcStruct.MsgFun83Zone1MsgReg0 = 0x00;
@@ -245,7 +245,7 @@ static void oem_fan_control(FCH_DATA_BLOCK *FchParams)
 		FchParams->Imc.EcStruct.MsgFun81Zone2MsgReg5 = 0x00;
 		FchParams->Imc.EcStruct.MsgFun81Zone2MsgReg6 = 0x98;    /* SMBUS Address for SMBUS based temperature sensor such as SB-TSI and ADM1032 */
 		FchParams->Imc.EcStruct.MsgFun81Zone2MsgReg7 = 2;
-		FchParams->Imc.EcStruct.MsgFun81Zone2MsgReg8 = 5;       /* PWM steping rate in unit of PWM level percentage */
+		FchParams->Imc.EcStruct.MsgFun81Zone2MsgReg8 = 5;       /* PWM stepping rate in unit of PWM level percentage */
 		FchParams->Imc.EcStruct.MsgFun81Zone2MsgReg9 = 0;
 
 		FchParams->Imc.EcStruct.MsgFun81Zone3MsgReg0 = 0x00;
@@ -256,7 +256,7 @@ static void oem_fan_control(FCH_DATA_BLOCK *FchParams)
 		FchParams->Imc.EcStruct.MsgFun81Zone3MsgReg5 = 0x00;
 		FchParams->Imc.EcStruct.MsgFun81Zone3MsgReg6 = 0x0;     /* SMBUS Address for SMBUS based temperature sensor such as SB-TSI and ADM1032 */
 		FchParams->Imc.EcStruct.MsgFun81Zone3MsgReg7 = 0;
-		FchParams->Imc.EcStruct.MsgFun81Zone3MsgReg8 = 0;       /* PWM steping rate in unit of PWM level percentage */
+		FchParams->Imc.EcStruct.MsgFun81Zone3MsgReg8 = 0;       /* PWM stepping rate in unit of PWM level percentage */
 		FchParams->Imc.EcStruct.MsgFun81Zone3MsgReg9 = 0;
 
 		/* IMC Function */
diff --git a/src/mainboard/amd/olivehill/BiosCallOuts.c b/src/mainboard/amd/olivehill/BiosCallOuts.c
index b6a8a3ad62..4f780b35c1 100644
--- a/src/mainboard/amd/olivehill/BiosCallOuts.c
+++ b/src/mainboard/amd/olivehill/BiosCallOuts.c
@@ -124,7 +124,7 @@ static void oem_fan_control(FCH_DATA_BLOCK *FchParams)
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg5 = 0x04;
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg6 = 0x9a;	/* SMBUS Address for SMBUS based temperature sensor such as SB-TSI and ADM1032 */
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg7 = 0x01;
-		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg8 = 0x01;	/* PWM steping rate in unit of PWM level percentage */
+		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg8 = 0x01;	/* PWM stepping rate in unit of PWM level percentage */
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg9 = 0x00;
 
 		/* IMC Fan Policy temperature thresholds */
diff --git a/src/mainboard/amd/olivehillplus/BiosCallOuts.c b/src/mainboard/amd/olivehillplus/BiosCallOuts.c
index 8975dc8e5d..efb658a4e3 100644
--- a/src/mainboard/amd/olivehillplus/BiosCallOuts.c
+++ b/src/mainboard/amd/olivehillplus/BiosCallOuts.c
@@ -139,7 +139,7 @@ static void oem_fan_control(FCH_DATA_BLOCK *FchParams)
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg5 = 0x04;
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg6 = 0x9a;    /* SMBUS Address for SMBUS based temperature sensor such as SB-TSI and ADM1032 */
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg7 = 0x01;
-		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg8 = 0x01;    /* PWM steping rate in unit of PWM level percentage */
+		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg8 = 0x01;    /* PWM stepping rate in unit of PWM level percentage */
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg9 = 0x00;
 
 		/* IMC Fan Policy temperature thresholds */
@@ -176,7 +176,7 @@ static void oem_fan_control(FCH_DATA_BLOCK *FchParams)
 		FchParams->Imc.EcStruct.MsgFun81Zone1MsgReg5 = 0x00;
 		FchParams->Imc.EcStruct.MsgFun81Zone1MsgReg6 = 0x90;    /* SMBUS Address for SMBUS based temperature sensor such as SB-TSI and ADM1032 */
 		FchParams->Imc.EcStruct.MsgFun81Zone1MsgReg7 = 0;
-		FchParams->Imc.EcStruct.MsgFun81Zone1MsgReg8 = 0;       /* PWM steping rate in unit of PWM level percentage */
+		FchParams->Imc.EcStruct.MsgFun81Zone1MsgReg8 = 0;       /* PWM stepping rate in unit of PWM level percentage */
 		FchParams->Imc.EcStruct.MsgFun81Zone1MsgReg9 = 0;
 
 		FchParams->Imc.EcStruct.MsgFun83Zone1MsgReg0 = 0x00;
@@ -211,7 +211,7 @@ static void oem_fan_control(FCH_DATA_BLOCK *FchParams)
 		FchParams->Imc.EcStruct.MsgFun81Zone2MsgReg5 = 0x00;
 		FchParams->Imc.EcStruct.MsgFun81Zone2MsgReg6 = 0x98;    /* SMBUS Address for SMBUS based temperature sensor such as SB-TSI and ADM1032 */
 		FchParams->Imc.EcStruct.MsgFun81Zone2MsgReg7 = 2;
-		FchParams->Imc.EcStruct.MsgFun81Zone2MsgReg8 = 5;       /* PWM steping rate in unit of PWM level percentage */
+		FchParams->Imc.EcStruct.MsgFun81Zone2MsgReg8 = 5;       /* PWM stepping rate in unit of PWM level percentage */
 		FchParams->Imc.EcStruct.MsgFun81Zone2MsgReg9 = 0;
 
 		FchParams->Imc.EcStruct.MsgFun81Zone3MsgReg0 = 0x00;
@@ -222,7 +222,7 @@ static void oem_fan_control(FCH_DATA_BLOCK *FchParams)
 		FchParams->Imc.EcStruct.MsgFun81Zone3MsgReg5 = 0x00;
 		FchParams->Imc.EcStruct.MsgFun81Zone3MsgReg6 = 0x0;     /* SMBUS Address for SMBUS based temperature sensor such as SB-TSI and ADM1032 */
 		FchParams->Imc.EcStruct.MsgFun81Zone3MsgReg7 = 0;
-		FchParams->Imc.EcStruct.MsgFun81Zone3MsgReg8 = 0;       /* PWM steping rate in unit of PWM level percentage */
+		FchParams->Imc.EcStruct.MsgFun81Zone3MsgReg8 = 0;       /* PWM stepping rate in unit of PWM level percentage */
 		FchParams->Imc.EcStruct.MsgFun81Zone3MsgReg9 = 0;
 
 		/* IMC Function */
diff --git a/src/mainboard/amd/parmer/BiosCallOuts.c b/src/mainboard/amd/parmer/BiosCallOuts.c
index 0c54211b82..59d6bf6f0b 100644
--- a/src/mainboard/amd/parmer/BiosCallOuts.c
+++ b/src/mainboard/amd/parmer/BiosCallOuts.c
@@ -124,7 +124,7 @@ static void oem_fan_control(FCH_DATA_BLOCK *FchParams)
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg5 = 0x54;
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg6 = 0x98;	/* SMBUS Address for SMBUS based temperature sensor such as SB-TSI and ADM1032 */
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg7 = 0x02;
-		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg8 = 0x01;	/* PWM steping rate in unit of PWM level percentage */
+		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg8 = 0x01;	/* PWM stepping rate in unit of PWM level percentage */
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg9 = 0x00;
 
 		/* IMC Fan Policy temperature thresholds */
diff --git a/src/mainboard/amd/thatcher/BiosCallOuts.c b/src/mainboard/amd/thatcher/BiosCallOuts.c
index f23161d455..f8b7539ed8 100644
--- a/src/mainboard/amd/thatcher/BiosCallOuts.c
+++ b/src/mainboard/amd/thatcher/BiosCallOuts.c
@@ -124,7 +124,7 @@ static void oem_fan_control(FCH_DATA_BLOCK *FchParams)
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg5 = 0x54;
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg6 = 0x98;	/* SMBUS Address for SMBUS based temperature sensor such as SB-TSI and ADM1032 */
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg7 = 0x02;
-		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg8 = 0x01;	/* PWM steping rate in unit of PWM level percentage */
+		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg8 = 0x01;	/* PWM stepping rate in unit of PWM level percentage */
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg9 = 0x00;
 
 		/* IMC Fan Policy temperature thresholds */
diff --git a/src/mainboard/bap/ode_e20XX/BiosCallOuts.c b/src/mainboard/bap/ode_e20XX/BiosCallOuts.c
index abe300e731..9ebef559a5 100644
--- a/src/mainboard/bap/ode_e20XX/BiosCallOuts.c
+++ b/src/mainboard/bap/ode_e20XX/BiosCallOuts.c
@@ -128,7 +128,7 @@ static void oem_fan_control(FCH_DATA_BLOCK *FchParams)
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg5 = 0x04;
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg6 = 0x9a;	/* SMBUS Address for SMBUS based temperature sensor such as SB-TSI and ADM1032 */
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg7 = 0x01;
-		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg8 = 0x01;	/* PWM steping rate in unit of PWM level percentage */
+		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg8 = 0x01;	/* PWM stepping rate in unit of PWM level percentage */
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg9 = 0x00;
 
 		/* IMC Fan Policy temperature thresholds */
diff --git a/src/mainboard/bap/ode_e21XX/BiosCallOuts.c b/src/mainboard/bap/ode_e21XX/BiosCallOuts.c
index 6ff38cbe77..cc2e2d3282 100644
--- a/src/mainboard/bap/ode_e21XX/BiosCallOuts.c
+++ b/src/mainboard/bap/ode_e21XX/BiosCallOuts.c
@@ -141,7 +141,7 @@ static void oem_fan_control(FCH_DATA_BLOCK *FchParams)
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg5 = 0x04;
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg6 = 0x9a;    /* SMBUS Address for SMBUS based temperature sensor such as SB-TSI and ADM1032 */
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg7 = 0x01;
-		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg8 = 0x01;    /* PWM steping rate in unit of PWM level percentage */
+		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg8 = 0x01;    /* PWM stepping rate in unit of PWM level percentage */
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg9 = 0x00;
 
 		/* IMC Fan Policy temperature thresholds */
@@ -178,7 +178,7 @@ static void oem_fan_control(FCH_DATA_BLOCK *FchParams)
 		FchParams->Imc.EcStruct.MsgFun81Zone1MsgReg5 = 0x00;
 		FchParams->Imc.EcStruct.MsgFun81Zone1MsgReg6 = 0x90;    /* SMBUS Address for SMBUS based temperature sensor such as SB-TSI and ADM1032 */
 		FchParams->Imc.EcStruct.MsgFun81Zone1MsgReg7 = 0;
-		FchParams->Imc.EcStruct.MsgFun81Zone1MsgReg8 = 0;       /* PWM steping rate in unit of PWM level percentage */
+		FchParams->Imc.EcStruct.MsgFun81Zone1MsgReg8 = 0;       /* PWM stepping rate in unit of PWM level percentage */
 		FchParams->Imc.EcStruct.MsgFun81Zone1MsgReg9 = 0;
 
 		FchParams->Imc.EcStruct.MsgFun83Zone1MsgReg0 = 0x00;
@@ -213,7 +213,7 @@ static void oem_fan_control(FCH_DATA_BLOCK *FchParams)
 		FchParams->Imc.EcStruct.MsgFun81Zone2MsgReg5 = 0x00;
 		FchParams->Imc.EcStruct.MsgFun81Zone2MsgReg6 = 0x98;    /* SMBUS Address for SMBUS based temperature sensor such as SB-TSI and ADM1032 */
 		FchParams->Imc.EcStruct.MsgFun81Zone2MsgReg7 = 2;
-		FchParams->Imc.EcStruct.MsgFun81Zone2MsgReg8 = 5;       /* PWM steping rate in unit of PWM level percentage */
+		FchParams->Imc.EcStruct.MsgFun81Zone2MsgReg8 = 5;       /* PWM stepping rate in unit of PWM level percentage */
 		FchParams->Imc.EcStruct.MsgFun81Zone2MsgReg9 = 0;
 
 		FchParams->Imc.EcStruct.MsgFun81Zone3MsgReg0 = 0x00;
@@ -224,7 +224,7 @@ static void oem_fan_control(FCH_DATA_BLOCK *FchParams)
 		FchParams->Imc.EcStruct.MsgFun81Zone3MsgReg5 = 0x00;
 		FchParams->Imc.EcStruct.MsgFun81Zone3MsgReg6 = 0x0;     /* SMBUS Address for SMBUS based temperature sensor such as SB-TSI and ADM1032 */
 		FchParams->Imc.EcStruct.MsgFun81Zone3MsgReg7 = 0;
-		FchParams->Imc.EcStruct.MsgFun81Zone3MsgReg8 = 0;       /* PWM steping rate in unit of PWM level percentage */
+		FchParams->Imc.EcStruct.MsgFun81Zone3MsgReg8 = 0;       /* PWM stepping rate in unit of PWM level percentage */
 		FchParams->Imc.EcStruct.MsgFun81Zone3MsgReg9 = 0;
 
 		/* IMC Function */
diff --git a/src/mainboard/biostar/a68n_5200/BiosCallOuts.c b/src/mainboard/biostar/a68n_5200/BiosCallOuts.c
index 8f55fb6a5b..0caa71899d 100644
--- a/src/mainboard/biostar/a68n_5200/BiosCallOuts.c
+++ b/src/mainboard/biostar/a68n_5200/BiosCallOuts.c
@@ -124,7 +124,7 @@ static void oem_fan_control(FCH_DATA_BLOCK *FchParams)
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg5 = 0x04;
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg6 = 0x9a;	/* SMBUS Address for SMBUS based temperature sensor such as SB-TSI and ADM1032 */
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg7 = 0x01;
-		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg8 = 0x01;	/* PWM steping rate in unit of PWM level percentage */
+		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg8 = 0x01;	/* PWM stepping rate in unit of PWM level percentage */
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg9 = 0x00;
 
 		/* IMC Fan Policy temperature thresholds */
diff --git a/src/mainboard/gizmosphere/gizmo2/BiosCallOuts.c b/src/mainboard/gizmosphere/gizmo2/BiosCallOuts.c
index 99162d8220..a3fbb25c79 100644
--- a/src/mainboard/gizmosphere/gizmo2/BiosCallOuts.c
+++ b/src/mainboard/gizmosphere/gizmo2/BiosCallOuts.c
@@ -124,7 +124,7 @@ static void oem_fan_control(FCH_DATA_BLOCK *FchParams)
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg5 = 0x04;
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg6 = 0x9a;	/* SMBUS Address for SMBUS based temperature sensor such as SB-TSI and ADM1032 */
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg7 = 0x01;
-		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg8 = 0x01;	/* PWM steping rate in unit of PWM level percentage */
+		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg8 = 0x01;	/* PWM stepping rate in unit of PWM level percentage */
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg9 = 0x00;
 
 		/* IMC Fan Policy temperature thresholds */
diff --git a/src/mainboard/hp/pavilion_m6_1035dx/BiosCallOuts.c b/src/mainboard/hp/pavilion_m6_1035dx/BiosCallOuts.c
index f36e11efec..2eb36fa4d9 100644
--- a/src/mainboard/hp/pavilion_m6_1035dx/BiosCallOuts.c
+++ b/src/mainboard/hp/pavilion_m6_1035dx/BiosCallOuts.c
@@ -123,7 +123,7 @@ static void oem_fan_control(FCH_DATA_BLOCK *FchParams)
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg5 = 0x54;
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg6 = 0x98;	/* SMBUS Address for SMBUS based temperature sensor such as SB-TSI and ADM1032 */
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg7 = 0x02;
-		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg8 = 0x01;	/* PWM steping rate in unit of PWM level percentage */
+		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg8 = 0x01;	/* PWM stepping rate in unit of PWM level percentage */
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg9 = 0x00;
 
 		/* IMC Fan Policy temperature thresholds */
diff --git a/src/mainboard/lenovo/g505s/BiosCallOuts.c b/src/mainboard/lenovo/g505s/BiosCallOuts.c
index f36e11efec..2eb36fa4d9 100644
--- a/src/mainboard/lenovo/g505s/BiosCallOuts.c
+++ b/src/mainboard/lenovo/g505s/BiosCallOuts.c
@@ -123,7 +123,7 @@ static void oem_fan_control(FCH_DATA_BLOCK *FchParams)
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg5 = 0x54;
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg6 = 0x98;	/* SMBUS Address for SMBUS based temperature sensor such as SB-TSI and ADM1032 */
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg7 = 0x02;
-		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg8 = 0x01;	/* PWM steping rate in unit of PWM level percentage */
+		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg8 = 0x01;	/* PWM stepping rate in unit of PWM level percentage */
 		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg9 = 0x00;
 
 		/* IMC Fan Policy temperature thresholds */