diff --git a/packages/platforms/accton/powerpc/powerpc-accton-as5710-54x/onlp/builds/src/module/auto/powerpc_accton_as5710_54x.yml b/packages/platforms/accton/powerpc/powerpc-accton-as5710-54x/onlp/builds/src/module/auto/powerpc_accton_as5710_54x.yml
index c9f356ab..aa4a563f 100644
--- a/packages/platforms/accton/powerpc/powerpc-accton-as5710-54x/onlp/builds/src/module/auto/powerpc_accton_as5710_54x.yml
+++ b/packages/platforms/accton/powerpc/powerpc-accton-as5710-54x/onlp/builds/src/module/auto/powerpc_accton_as5710_54x.yml
@@ -29,6 +29,9 @@ cdefs: &cdefs
 - POWERPC_ACCTON_AS5710_54X_CONFIG_INCLUDE_DEBUG:
     doc: "Include debug tool."
     default: 0
+- POWERPC_ACCTON_AS5710_54X_CONFIG_SYS_FAN_FRONT_RPM_MAX:
+    doc: "Maximum system fan(Front) rpm."
+    default: 19725
 
 definitions:
   cdefs:
diff --git a/packages/platforms/accton/powerpc/powerpc-accton-as5710-54x/onlp/builds/src/module/inc/powerpc_accton_as5710_54x/powerpc_accton_as5710_54x_config.h b/packages/platforms/accton/powerpc/powerpc-accton-as5710-54x/onlp/builds/src/module/inc/powerpc_accton_as5710_54x/powerpc_accton_as5710_54x_config.h
index a5c4df80..f58bb3b5 100644
--- a/packages/platforms/accton/powerpc/powerpc-accton-as5710-54x/onlp/builds/src/module/inc/powerpc_accton_as5710_54x/powerpc_accton_as5710_54x_config.h
+++ b/packages/platforms/accton/powerpc/powerpc-accton-as5710-54x/onlp/builds/src/module/inc/powerpc_accton_as5710_54x/powerpc_accton_as5710_54x_config.h
@@ -99,6 +99,16 @@
 #define POWERPC_ACCTON_AS5710_54X_CONFIG_INCLUDE_DEBUG 0
 #endif
 
+/**
+ * POWERPC_ACCTON_AS5710_54X_CONFIG_SYS_FAN_FRONT_RPM_MAX
+ *
+ * Maximum system fan(Front) rpm. */
+
+
+#ifndef POWERPC_ACCTON_AS5710_54X_CONFIG_SYS_FAN_FRONT_RPM_MAX
+#define POWERPC_ACCTON_AS5710_54X_CONFIG_SYS_FAN_FRONT_RPM_MAX 19725
+#endif
+
 
 
 /**
diff --git a/packages/platforms/accton/powerpc/powerpc-accton-as5710-54x/onlp/builds/src/module/src/fani.c b/packages/platforms/accton/powerpc/powerpc-accton-as5710-54x/onlp/builds/src/module/src/fani.c
index 362b7b90..4590beda 100644
--- a/packages/platforms/accton/powerpc/powerpc-accton-as5710-54x/onlp/builds/src/module/src/fani.c
+++ b/packages/platforms/accton/powerpc/powerpc-accton-as5710-54x/onlp/builds/src/module/src/fani.c
@@ -27,6 +27,7 @@
 #include <onlplib/mmap.h>
 #include <fcntl.h>
 #include "platform_lib.h"
+#include "powerpc_accton_as5710_54x/powerpc_accton_as5710_54x_config.h"
 
 #define PREFIX_PATH_ON_MAIN_BROAD  "/sys/class/hwmon/hwmon11/"
 #define PREFIX_PATH_ON_PSU  "/sys/bus/i2c/devices/"
@@ -190,7 +191,7 @@ _onlp_fani_info_get_fan(int local_id, onlp_fan_info_t* info)
     info->rpm = (info->rpm + atoi(r_data))/2;
 
     /* get speed percentage from rpm */
-    info->percentage = (info->rpm * 100)/16800;        
+    info->percentage = (info->rpm * 100)/POWERPC_ACCTON_AS5710_54X_CONFIG_SYS_FAN_FRONT_RPM_MAX;
 
     /* check present */        
     if (info->rpm > 0)
diff --git a/packages/platforms/accton/powerpc/powerpc-accton-as5710-54x/onlp/builds/src/module/src/powerpc_accton_as5710_54x_config.c b/packages/platforms/accton/powerpc/powerpc-accton-as5710-54x/onlp/builds/src/module/src/powerpc_accton_as5710_54x_config.c
index da550d95..79a2d008 100644
--- a/packages/platforms/accton/powerpc/powerpc-accton-as5710-54x/onlp/builds/src/module/src/powerpc_accton_as5710_54x_config.c
+++ b/packages/platforms/accton/powerpc/powerpc-accton-as5710-54x/onlp/builds/src/module/src/powerpc_accton_as5710_54x_config.c
@@ -49,6 +49,11 @@ powerpc_accton_as5710_54x_config_settings_t powerpc_accton_as5710_54x_config_set
     { __powerpc_accton_as5710_54x_config_STRINGIFY_NAME(POWERPC_ACCTON_AS5710_54X_CONFIG_INCLUDE_DEBUG), __powerpc_accton_as5710_54x_config_STRINGIFY_VALUE(POWERPC_ACCTON_AS5710_54X_CONFIG_INCLUDE_DEBUG) },
 #else
 { POWERPC_ACCTON_AS5710_54X_CONFIG_INCLUDE_DEBUG(__powerpc_accton_as5710_54x_config_STRINGIFY_NAME), "__undefined__" },
+#endif
+#ifdef POWERPC_ACCTON_AS5710_54X_CONFIG_SYS_FAN_FRONT_RPM_MAX
+    { __powerpc_accton_as5710_54x_config_STRINGIFY_NAME(POWERPC_ACCTON_AS5710_54X_CONFIG_SYS_FAN_FRONT_RPM_MAX), __powerpc_accton_as5710_54x_config_STRINGIFY_VALUE(POWERPC_ACCTON_AS5710_54X_CONFIG_SYS_FAN_FRONT_RPM_MAX) },
+#else
+{ POWERPC_ACCTON_AS5710_54X_CONFIG_SYS_FAN_FRONT_RPM_MAX(__powerpc_accton_as5710_54x_config_STRINGIFY_NAME), "__undefined__" },
 #endif
     { NULL, NULL }
 };
diff --git a/packages/platforms/accton/x86-64/x86-64-accton-as5812-54t/onlp/builds/src/module/auto/x86_64_accton_as5812_54t.yml b/packages/platforms/accton/x86-64/x86-64-accton-as5812-54t/onlp/builds/src/module/auto/x86_64_accton_as5812_54t.yml
index 6cea6947..a6146a3f 100644
--- a/packages/platforms/accton/x86-64/x86-64-accton-as5812-54t/onlp/builds/src/module/auto/x86_64_accton_as5812_54t.yml
+++ b/packages/platforms/accton/x86-64/x86-64-accton-as5812-54t/onlp/builds/src/module/auto/x86_64_accton_as5812_54t.yml
@@ -29,7 +29,9 @@ cdefs: &cdefs
 - X86_64_ACCTON_AS5812_54T_CONFIG_INCLUDE_DEFAULT_FAN_DIRECTION:
     doc: "Assume chassis fan direction is the same as the PSU fan direction."
     default: 0
-
+- x86_64_accton_as5812_54t_CONFIG_SYS_FAN_FRONT_RPM_MAX:
+    doc: "Maximum system fan(Front) rpm."
+    default: 21500
 
 definitions:
   cdefs:
diff --git a/packages/platforms/accton/x86-64/x86-64-accton-as5812-54t/onlp/builds/src/module/inc/x86_64_accton_as5812_54t/x86_64_accton_as5812_54t_config.h b/packages/platforms/accton/x86-64/x86-64-accton-as5812-54t/onlp/builds/src/module/inc/x86_64_accton_as5812_54t/x86_64_accton_as5812_54t_config.h
index 2ece1c39..f30e6030 100644
--- a/packages/platforms/accton/x86-64/x86-64-accton-as5812-54t/onlp/builds/src/module/inc/x86_64_accton_as5812_54t/x86_64_accton_as5812_54t_config.h
+++ b/packages/platforms/accton/x86-64/x86-64-accton-as5812-54t/onlp/builds/src/module/inc/x86_64_accton_as5812_54t/x86_64_accton_as5812_54t_config.h
@@ -99,6 +99,16 @@
 #define X86_64_ACCTON_AS5812_54T_CONFIG_INCLUDE_DEFAULT_FAN_DIRECTION 0
 #endif
 
+/**
+ * x86_64_accton_as5812_54t_CONFIG_SYS_FAN_FRONT_RPM_MAX
+ *
+ * Maximum system fan(Front) rpm. */
+
+
+#ifndef x86_64_accton_as5812_54t_CONFIG_SYS_FAN_FRONT_RPM_MAX
+#define x86_64_accton_as5812_54t_CONFIG_SYS_FAN_FRONT_RPM_MAX 21500
+#endif
+
 
 
 /**
diff --git a/packages/platforms/accton/x86-64/x86-64-accton-as5812-54t/onlp/builds/src/module/src/fani.c b/packages/platforms/accton/x86-64/x86-64-accton-as5812-54t/onlp/builds/src/module/src/fani.c
index 4c43da33..6a0f9772 100644
--- a/packages/platforms/accton/x86-64/x86-64-accton-as5812-54t/onlp/builds/src/module/src/fani.c
+++ b/packages/platforms/accton/x86-64/x86-64-accton-as5812-54t/onlp/builds/src/module/src/fani.c
@@ -28,6 +28,7 @@
 #include <onlplib/file.h>
 #include <fcntl.h>
 #include "platform_lib.h"
+#include "x86_64_accton_as5812_54t/x86_64_accton_as5812_54t_config.h"
 
 #define PREFIX_PATH_ON_MAIN_BOARD  "/sys/devices/platform/as5812_54t_fan/"
 #define PREFIX_PATH_ON_PSU  "/sys/bus/i2c/devices/"
@@ -191,7 +192,7 @@ _onlp_fani_info_get_fan(int local_id, onlp_fan_info_t* info)
     info->rpm = (info->rpm + atoi(r_data))/2;
 
     /* get speed percentage from rpm */
-    info->percentage = (info->rpm * 100)/16800;        
+    info->percentage = (info->rpm * 100)/x86_64_accton_as5812_54t_CONFIG_SYS_FAN_FRONT_RPM_MAX;
 
     /* check present */        
     if (info->rpm > 0)
diff --git a/packages/platforms/accton/x86-64/x86-64-accton-as5812-54t/onlp/builds/src/module/src/x86_64_accton_as5812_54t_config.c b/packages/platforms/accton/x86-64/x86-64-accton-as5812-54t/onlp/builds/src/module/src/x86_64_accton_as5812_54t_config.c
index 3b9e9acf..8cf4c7c8 100644
--- a/packages/platforms/accton/x86-64/x86-64-accton-as5812-54t/onlp/builds/src/module/src/x86_64_accton_as5812_54t_config.c
+++ b/packages/platforms/accton/x86-64/x86-64-accton-as5812-54t/onlp/builds/src/module/src/x86_64_accton_as5812_54t_config.c
@@ -49,6 +49,11 @@ x86_64_accton_as5812_54t_config_settings_t x86_64_accton_as5812_54t_config_setti
     { __x86_64_accton_as5812_54t_config_STRINGIFY_NAME(X86_64_ACCTON_AS5812_54T_CONFIG_INCLUDE_DEFAULT_FAN_DIRECTION), __x86_64_accton_as5812_54t_config_STRINGIFY_VALUE(X86_64_ACCTON_AS5812_54T_CONFIG_INCLUDE_DEFAULT_FAN_DIRECTION) },
 #else
 { X86_64_ACCTON_AS5812_54T_CONFIG_INCLUDE_DEFAULT_FAN_DIRECTION(__x86_64_accton_as5812_54t_config_STRINGIFY_NAME), "__undefined__" },
+#endif
+#ifdef x86_64_accton_as5812_54t_CONFIG_SYS_FAN_FRONT_RPM_MAX
+    { __x86_64_accton_as5812_54t_config_STRINGIFY_NAME(x86_64_accton_as5812_54t_CONFIG_SYS_FAN_FRONT_RPM_MAX), __x86_64_accton_as5812_54t_config_STRINGIFY_VALUE(x86_64_accton_as5812_54t_CONFIG_SYS_FAN_FRONT_RPM_MAX) },
+#else
+{ x86_64_accton_as5812_54t_CONFIG_SYS_FAN_FRONT_RPM_MAX(__x86_64_accton_as5812_54t_config_STRINGIFY_NAME), "__undefined__" },
 #endif
     { NULL, NULL }
 };
diff --git a/packages/platforms/accton/x86-64/x86-64-accton-as5812-54x/onlp/builds/src/module/auto/x86_64_accton_as5812_54x.yml b/packages/platforms/accton/x86-64/x86-64-accton-as5812-54x/onlp/builds/src/module/auto/x86_64_accton_as5812_54x.yml
index 7d360ebd..b2e4345c 100644
--- a/packages/platforms/accton/x86-64/x86-64-accton-as5812-54x/onlp/builds/src/module/auto/x86_64_accton_as5812_54x.yml
+++ b/packages/platforms/accton/x86-64/x86-64-accton-as5812-54x/onlp/builds/src/module/auto/x86_64_accton_as5812_54x.yml
@@ -29,7 +29,9 @@ cdefs: &cdefs
 - X86_64_ACCTON_AS5812_54X_CONFIG_INCLUDE_DEFAULT_FAN_DIRECTION:
     doc: "Assume chassis fan direction is the same as the PSU fan direction."
     default: 0
-
+- x86_64_accton_as5812_54x_CONFIG_SYS_FAN_FRONT_RPM_MAX:
+    doc: "Maximum system fan(Front) rpm."
+    default: 21500
 
 definitions:
   cdefs:
diff --git a/packages/platforms/accton/x86-64/x86-64-accton-as5812-54x/onlp/builds/src/module/inc/x86_64_accton_as5812_54x/x86_64_accton_as5812_54x_config.h b/packages/platforms/accton/x86-64/x86-64-accton-as5812-54x/onlp/builds/src/module/inc/x86_64_accton_as5812_54x/x86_64_accton_as5812_54x_config.h
index a93d2c16..7a4afd0f 100644
--- a/packages/platforms/accton/x86-64/x86-64-accton-as5812-54x/onlp/builds/src/module/inc/x86_64_accton_as5812_54x/x86_64_accton_as5812_54x_config.h
+++ b/packages/platforms/accton/x86-64/x86-64-accton-as5812-54x/onlp/builds/src/module/inc/x86_64_accton_as5812_54x/x86_64_accton_as5812_54x_config.h
@@ -99,6 +99,16 @@
 #define X86_64_ACCTON_AS5812_54X_CONFIG_INCLUDE_DEFAULT_FAN_DIRECTION 0
 #endif
 
+/**
+ * x86_64_accton_as5812_54x_CONFIG_SYS_FAN_FRONT_RPM_MAX
+ *
+ * Maximum system fan(Front) rpm. */
+
+
+#ifndef x86_64_accton_as5812_54x_CONFIG_SYS_FAN_FRONT_RPM_MAX
+#define x86_64_accton_as5812_54x_CONFIG_SYS_FAN_FRONT_RPM_MAX 21500
+#endif
+
 
 
 /**
diff --git a/packages/platforms/accton/x86-64/x86-64-accton-as5812-54x/onlp/builds/src/module/src/fani.c b/packages/platforms/accton/x86-64/x86-64-accton-as5812-54x/onlp/builds/src/module/src/fani.c
index 4e76e24c..9c9200c1 100644
--- a/packages/platforms/accton/x86-64/x86-64-accton-as5812-54x/onlp/builds/src/module/src/fani.c
+++ b/packages/platforms/accton/x86-64/x86-64-accton-as5812-54x/onlp/builds/src/module/src/fani.c
@@ -28,6 +28,7 @@
 #include <onlplib/file.h>
 #include <fcntl.h>
 #include "platform_lib.h"
+#include "x86_64_accton_as5812_54x/x86_64_accton_as5812_54x_config.h"
 
 #define PREFIX_PATH_ON_MAIN_BOARD  "/sys/devices/platform/as5812_54x_fan/"
 #define PREFIX_PATH_ON_PSU  "/sys/bus/i2c/devices/"
@@ -191,7 +192,7 @@ _onlp_fani_info_get_fan(int local_id, onlp_fan_info_t* info)
     info->rpm = (info->rpm + atoi(r_data))/2;
 
     /* get speed percentage from rpm */
-    info->percentage = (info->rpm * 100)/16800;        
+    info->percentage = (info->rpm * 100)/x86_64_accton_as5812_54x_CONFIG_SYS_FAN_FRONT_RPM_MAX;
 
     /* check present */        
     if (info->rpm > 0)
diff --git a/packages/platforms/accton/x86-64/x86-64-accton-as5812-54x/onlp/builds/src/module/src/x86_64_accton_as5812_54x_config.c b/packages/platforms/accton/x86-64/x86-64-accton-as5812-54x/onlp/builds/src/module/src/x86_64_accton_as5812_54x_config.c
index c3301e27..1c91eb7b 100644
--- a/packages/platforms/accton/x86-64/x86-64-accton-as5812-54x/onlp/builds/src/module/src/x86_64_accton_as5812_54x_config.c
+++ b/packages/platforms/accton/x86-64/x86-64-accton-as5812-54x/onlp/builds/src/module/src/x86_64_accton_as5812_54x_config.c
@@ -49,6 +49,11 @@ x86_64_accton_as5812_54x_config_settings_t x86_64_accton_as5812_54x_config_setti
     { __x86_64_accton_as5812_54x_config_STRINGIFY_NAME(X86_64_ACCTON_AS5812_54X_CONFIG_INCLUDE_DEFAULT_FAN_DIRECTION), __x86_64_accton_as5812_54x_config_STRINGIFY_VALUE(X86_64_ACCTON_AS5812_54X_CONFIG_INCLUDE_DEFAULT_FAN_DIRECTION) },
 #else
 { X86_64_ACCTON_AS5812_54X_CONFIG_INCLUDE_DEFAULT_FAN_DIRECTION(__x86_64_accton_as5812_54x_config_STRINGIFY_NAME), "__undefined__" },
+#endif
+#ifdef x86_64_accton_as5812_54x_CONFIG_SYS_FAN_FRONT_RPM_MAX
+    { __x86_64_accton_as5812_54x_config_STRINGIFY_NAME(x86_64_accton_as5812_54x_CONFIG_SYS_FAN_FRONT_RPM_MAX), __x86_64_accton_as5812_54x_config_STRINGIFY_VALUE(x86_64_accton_as5812_54x_CONFIG_SYS_FAN_FRONT_RPM_MAX) },
+#else
+{ x86_64_accton_as5812_54x_CONFIG_SYS_FAN_FRONT_RPM_MAX(__x86_64_accton_as5812_54x_config_STRINGIFY_NAME), "__undefined__" },
 #endif
     { NULL, NULL }
 };