diff --git a/fboss/platform/configs/ladakh800bcls/platform_manager.json b/fboss/platform/configs/ladakh800bcls/platform_manager.json
index 5c7e42ac7ce9f..67a9ab4968ec0 100644
--- a/fboss/platform/configs/ladakh800bcls/platform_manager.json
+++ b/fboss/platform/configs/ladakh800bcls/platform_manager.json
@@ -369,7 +369,16 @@
           "busName": "MCB_IOB_I2C_MASTER_5",
           "address": "0x62",
           "kernelDeviceName": "pmbus",
-          "pmUnitScopedName": "PMBUS_3"
+          "pmUnitScopedName": "PMBUS_3",
+          "initRegSettings": [
+            {
+              "__comment__": "Set the page to 0 to ensure the driver can read the correct registers",
+              "regOffset": 0,
+              "ioBuf": [
+                0
+              ]
+            }
+          ]
         },
         {
           "busName": "MCB_IOB_I2C_MASTER_6",
diff --git a/fboss/platform/configs/ladakh800bcls/sensor_service.json b/fboss/platform/configs/ladakh800bcls/sensor_service.json
index adec79dd44969..b6c62d094d568 100644
--- a/fboss/platform/configs/ladakh800bcls/sensor_service.json
+++ b/fboss/platform/configs/ladakh800bcls/sensor_service.json
@@ -5,138 +5,6 @@
       "slotPath": "/",
       "pmUnitName": "LADAKH800BCLS_MCB",
       "sensors": [
-        {
-          "name": "MCB_UP24_FAN_1_F_RPM",
-          "sysfsPath": "/run/devmap/sensors/MCB_FAN_CPLD/fan1_input",
-          "type": 4,
-          "thresholds": {
-            "maxAlarmVal": 34100,
-            "minAlarmVal": 2790,
-            "upperCriticalVal": 34100,
-            "lowerCriticalVal": 2790
-          }
-        },
-        {
-          "name": "MCB_UP24_FAN_1_R_RPM",
-          "sysfsPath": "/run/devmap/sensors/MCB_FAN_CPLD/fan2_input",
-          "type": 4,
-          "thresholds": {
-            "maxAlarmVal": 30800,
-            "minAlarmVal": 2520,
-            "upperCriticalVal": 30800,
-            "lowerCriticalVal": 2520
-          }
-        },
-        {
-          "name": "MCB_UP25_FAN_2_F_RPM",
-          "sysfsPath": "/run/devmap/sensors/MCB_FAN_CPLD/fan3_input",
-          "type": 4,
-          "thresholds": {
-            "maxAlarmVal": 34100,
-            "minAlarmVal": 2790,
-            "upperCriticalVal": 34100,
-            "lowerCriticalVal": 2790
-          }
-        },
-        {
-          "name": "MCB_UP25_FAN_2_R_RPM",
-          "sysfsPath": "/run/devmap/sensors/MCB_FAN_CPLD/fan4_input",
-          "type": 4,
-          "thresholds": {
-            "maxAlarmVal": 30800,
-            "minAlarmVal": 2520,
-            "upperCriticalVal": 30800,
-            "lowerCriticalVal": 2520
-          }
-        },
-        {
-          "name": "MCB_UP26_FAN_3_F_RPM",
-          "sysfsPath": "/run/devmap/sensors/MCB_FAN_CPLD/fan5_input",
-          "type": 4,
-          "thresholds": {
-            "maxAlarmVal": 34100,
-            "minAlarmVal": 2790,
-            "upperCriticalVal": 34100,
-            "lowerCriticalVal": 2790
-          }
-        },
-        {
-          "name": "MCB_UP26_FAN_3_R_RPM",
-          "sysfsPath": "/run/devmap/sensors/MCB_FAN_CPLD/fan6_input",
-          "type": 4,
-          "thresholds": {
-            "maxAlarmVal": 30800,
-            "minAlarmVal": 2520,
-            "upperCriticalVal": 30800,
-            "lowerCriticalVal": 2520
-          }
-        },
-        {
-          "name": "MCB_UP27_FAN_4_F_RPM",
-          "sysfsPath": "/run/devmap/sensors/MCB_FAN_CPLD/fan7_input",
-          "type": 4,
-          "thresholds": {
-            "maxAlarmVal": 34100,
-            "minAlarmVal": 2790,
-            "upperCriticalVal": 34100,
-            "lowerCriticalVal": 2790
-          }
-        },
-        {
-          "name": "MCB_UP27_FAN_4_R_RPM",
-          "sysfsPath": "/run/devmap/sensors/MCB_FAN_CPLD/fan8_input",
-          "type": 4,
-          "thresholds": {
-            "maxAlarmVal": 30800,
-            "minAlarmVal": 2520,
-            "upperCriticalVal": 30800,
-            "lowerCriticalVal": 2520
-          }
-        },
-        {
-          "name": "MCB_UP28_FAN_5_F_RPM",
-          "sysfsPath": "/run/devmap/sensors/MCB_FAN_CPLD/fan9_input",
-          "type": 4,
-          "thresholds": {
-            "maxAlarmVal": 34100,
-            "minAlarmVal": 2790,
-            "upperCriticalVal": 34100,
-            "lowerCriticalVal": 2790
-          }
-        },
-        {
-          "name": "MCB_UP28_FAN_5_R_RPM",
-          "sysfsPath": "/run/devmap/sensors/MCB_FAN_CPLD/fan10_input",
-          "type": 4,
-          "thresholds": {
-            "maxAlarmVal": 30800,
-            "minAlarmVal": 2520,
-            "upperCriticalVal": 30800,
-            "lowerCriticalVal": 2520
-          }
-        },
-        {
-          "name": "MCB_UP29_FAN_6_F_RPM",
-          "sysfsPath": "/run/devmap/sensors/MCB_FAN_CPLD/fan11_input",
-          "type": 4,
-          "thresholds": {
-            "maxAlarmVal": 34100,
-            "minAlarmVal": 2790,
-            "upperCriticalVal": 34100,
-            "lowerCriticalVal": 2790
-          }
-        },
-        {
-          "name": "MCB_UP29_FAN_6_R_RPM",
-          "sysfsPath": "/run/devmap/sensors/MCB_FAN_CPLD/fan12_input",
-          "type": 4,
-          "thresholds": {
-            "maxAlarmVal": 30800,
-            "minAlarmVal": 2520,
-            "upperCriticalVal": 30800,
-            "lowerCriticalVal": 2520
-          }
-        },
         {
           "name": "MCB_U59_XP1R5V_OOB",
           "sysfsPath": "/run/devmap/sensors/MCB_ADC1_MONITOR/in0_input",
@@ -803,16 +671,6 @@
           },
           "compute": "@/1000.0"
         },
-        {
-          "name": "MCB_PSP3_XP12R0V_PB3_IOUT",
-          "sysfsPath": "/run/devmap/sensors/PMBUS_3/curr1_input",
-          "type": 2,
-          "thresholds": {
-            "maxAlarmVal": 108,
-            "upperCriticalVal": 130
-          },
-          "compute": "@/1000.0"
-        },
         {
           "name": "MCB_PSP3_XP12R0V_PB3_TEMPARTURES",
           "sysfsPath": "/run/devmap/sensors/PMBUS_3/temp1_input",
@@ -1032,6 +890,306 @@
           },
           "compute": "@/1000.0"
         }
+      ],
+      "versionedSensors": [
+        {
+          "sensors": [
+            {
+              "name": "MCB_UP24_FAN_1_F_RPM",
+              "sysfsPath": "/run/devmap/sensors/MCB_FAN_CPLD/fan1_input",
+              "type": 4,
+              "thresholds": {
+                "maxAlarmVal": 34100,
+                "minAlarmVal": 2790,
+                "upperCriticalVal": 34100,
+                "lowerCriticalVal": 2790
+              }
+            },
+            {
+              "name": "MCB_UP24_FAN_1_R_RPM",
+              "sysfsPath": "/run/devmap/sensors/MCB_FAN_CPLD/fan2_input",
+              "type": 4,
+              "thresholds": {
+                "maxAlarmVal": 30800,
+                "minAlarmVal": 2520,
+                "upperCriticalVal": 30800,
+                "lowerCriticalVal": 2520
+              }
+            },
+            {
+              "name": "MCB_UP25_FAN_2_F_RPM",
+              "sysfsPath": "/run/devmap/sensors/MCB_FAN_CPLD/fan3_input",
+              "type": 4,
+              "thresholds": {
+                "maxAlarmVal": 34100,
+                "minAlarmVal": 2790,
+                "upperCriticalVal": 34100,
+                "lowerCriticalVal": 2790
+              }
+            },
+            {
+              "name": "MCB_UP25_FAN_2_R_RPM",
+              "sysfsPath": "/run/devmap/sensors/MCB_FAN_CPLD/fan4_input",
+              "type": 4,
+              "thresholds": {
+                "maxAlarmVal": 30800,
+                "minAlarmVal": 2520,
+                "upperCriticalVal": 30800,
+                "lowerCriticalVal": 2520
+              }
+            },
+            {
+              "name": "MCB_UP26_FAN_3_F_RPM",
+              "sysfsPath": "/run/devmap/sensors/MCB_FAN_CPLD/fan5_input",
+              "type": 4,
+              "thresholds": {
+                "maxAlarmVal": 34100,
+                "minAlarmVal": 2790,
+                "upperCriticalVal": 34100,
+                "lowerCriticalVal": 2790
+              }
+            },
+            {
+              "name": "MCB_UP26_FAN_3_R_RPM",
+              "sysfsPath": "/run/devmap/sensors/MCB_FAN_CPLD/fan6_input",
+              "type": 4,
+              "thresholds": {
+                "maxAlarmVal": 30800,
+                "minAlarmVal": 2520,
+                "upperCriticalVal": 30800,
+                "lowerCriticalVal": 2520
+              }
+            },
+            {
+              "name": "MCB_UP27_FAN_4_F_RPM",
+              "sysfsPath": "/run/devmap/sensors/MCB_FAN_CPLD/fan7_input",
+              "type": 4,
+              "thresholds": {
+                "maxAlarmVal": 34100,
+                "minAlarmVal": 2790,
+                "upperCriticalVal": 34100,
+                "lowerCriticalVal": 2790
+              }
+            },
+            {
+              "name": "MCB_UP27_FAN_4_R_RPM",
+              "sysfsPath": "/run/devmap/sensors/MCB_FAN_CPLD/fan8_input",
+              "type": 4,
+              "thresholds": {
+                "maxAlarmVal": 30800,
+                "minAlarmVal": 2520,
+                "upperCriticalVal": 30800,
+                "lowerCriticalVal": 2520
+              }
+            },
+            {
+              "name": "MCB_UP28_FAN_5_F_RPM",
+              "sysfsPath": "/run/devmap/sensors/MCB_FAN_CPLD/fan9_input",
+              "type": 4,
+              "thresholds": {
+                "maxAlarmVal": 34100,
+                "minAlarmVal": 2790,
+                "upperCriticalVal": 34100,
+                "lowerCriticalVal": 2790
+              }
+            },
+            {
+              "name": "MCB_UP28_FAN_5_R_RPM",
+              "sysfsPath": "/run/devmap/sensors/MCB_FAN_CPLD/fan10_input",
+              "type": 4,
+              "thresholds": {
+                "maxAlarmVal": 30800,
+                "minAlarmVal": 2520,
+                "upperCriticalVal": 30800,
+                "lowerCriticalVal": 2520
+              }
+            },
+            {
+              "name": "MCB_UP29_FAN_6_F_RPM",
+              "sysfsPath": "/run/devmap/sensors/MCB_FAN_CPLD/fan11_input",
+              "type": 4,
+              "thresholds": {
+                "maxAlarmVal": 34100,
+                "minAlarmVal": 2790,
+                "upperCriticalVal": 34100,
+                "lowerCriticalVal": 2790
+              }
+            },
+            {
+              "name": "MCB_UP29_FAN_6_R_RPM",
+              "sysfsPath": "/run/devmap/sensors/MCB_FAN_CPLD/fan12_input",
+              "type": 4,
+              "thresholds": {
+                "maxAlarmVal": 30800,
+                "minAlarmVal": 2520,
+                "upperCriticalVal": 30800,
+                "lowerCriticalVal": 2520
+              }
+            },
+            {
+              "name": "MCB_PSP3_XP12R0V_PB3_IOUT",
+              "sysfsPath": "/run/devmap/sensors/PMBUS_3/curr1_input",
+              "type": 2,
+              "thresholds": {
+                "maxAlarmVal": 108,
+                "upperCriticalVal": 130
+              },
+              "compute": "@/1000.0"
+            }
+          ],
+          "productProductionState": 1,
+          "productVersion": 1,
+          "productSubVersion": 0
+        },
+        {
+          "sensors": [
+            {
+              "name": "MCB_UP24_FAN_1_F_RPM",
+              "sysfsPath": "/run/devmap/sensors/MCB_FAN_CPLD/fan1_input",
+              "type": 4,
+              "thresholds": {
+                "maxAlarmVal": 40150,
+                "minAlarmVal": 3285,
+                "upperCriticalVal": 40150,
+                "lowerCriticalVal": 3285
+              }
+            },
+            {
+              "name": "MCB_UP24_FAN_1_R_RPM",
+              "sysfsPath": "/run/devmap/sensors/MCB_FAN_CPLD/fan2_input",
+              "type": 4,
+              "thresholds": {
+                "maxAlarmVal": 34760,
+                "minAlarmVal": 2844,
+                "upperCriticalVal": 34760,
+                "lowerCriticalVal": 2844
+              }
+            },
+            {
+              "name": "MCB_UP25_FAN_2_F_RPM",
+              "sysfsPath": "/run/devmap/sensors/MCB_FAN_CPLD/fan3_input",
+              "type": 4,
+              "thresholds": {
+                "maxAlarmVal": 40150,
+                "minAlarmVal": 3285,
+                "upperCriticalVal": 40150,
+                "lowerCriticalVal": 3285
+              }
+            },
+            {
+              "name": "MCB_UP25_FAN_2_R_RPM",
+              "sysfsPath": "/run/devmap/sensors/MCB_FAN_CPLD/fan4_input",
+              "type": 4,
+              "thresholds": {
+                "maxAlarmVal": 34760,
+                "minAlarmVal": 2844,
+                "upperCriticalVal": 34760,
+                "lowerCriticalVal": 2844
+              }
+            },
+            {
+              "name": "MCB_UP26_FAN_3_F_RPM",
+              "sysfsPath": "/run/devmap/sensors/MCB_FAN_CPLD/fan5_input",
+              "type": 4,
+              "thresholds": {
+                "maxAlarmVal": 40150,
+                "minAlarmVal": 3285,
+                "upperCriticalVal": 40150,
+                "lowerCriticalVal": 3285
+              }
+            },
+            {
+              "name": "MCB_UP26_FAN_3_R_RPM",
+              "sysfsPath": "/run/devmap/sensors/MCB_FAN_CPLD/fan6_input",
+              "type": 4,
+              "thresholds": {
+                "maxAlarmVal": 34760,
+                "minAlarmVal": 2844,
+                "upperCriticalVal": 34760,
+                "lowerCriticalVal": 2844
+              }
+            },
+            {
+              "name": "MCB_UP27_FAN_4_F_RPM",
+              "sysfsPath": "/run/devmap/sensors/MCB_FAN_CPLD/fan7_input",
+              "type": 4,
+              "thresholds": {
+                "maxAlarmVal": 40150,
+                "minAlarmVal": 3285,
+                "upperCriticalVal": 40150,
+                "lowerCriticalVal": 3285
+              }
+            },
+            {
+              "name": "MCB_UP27_FAN_4_R_RPM",
+              "sysfsPath": "/run/devmap/sensors/MCB_FAN_CPLD/fan8_input",
+              "type": 4,
+              "thresholds": {
+                "maxAlarmVal": 34760,
+                "minAlarmVal": 2844,
+                "upperCriticalVal": 34760,
+                "lowerCriticalVal": 2844
+              }
+            },
+            {
+              "name": "MCB_UP28_FAN_5_F_RPM",
+              "sysfsPath": "/run/devmap/sensors/MCB_FAN_CPLD/fan9_input",
+              "type": 4,
+              "thresholds": {
+                "maxAlarmVal": 40150,
+                "minAlarmVal": 3285,
+                "upperCriticalVal": 40150,
+                "lowerCriticalVal": 3285
+              }
+            },
+            {
+              "name": "MCB_UP28_FAN_5_R_RPM",
+              "sysfsPath": "/run/devmap/sensors/MCB_FAN_CPLD/fan10_input",
+              "type": 4,
+              "thresholds": {
+                "maxAlarmVal": 34760,
+                "minAlarmVal": 2844,
+                "upperCriticalVal": 34760,
+                "lowerCriticalVal": 2844
+              }
+            },
+            {
+              "name": "MCB_UP29_FAN_6_F_RPM",
+              "sysfsPath": "/run/devmap/sensors/MCB_FAN_CPLD/fan11_input",
+              "type": 4,
+              "thresholds": {
+                "maxAlarmVal": 40150,
+                "minAlarmVal": 3285,
+                "upperCriticalVal": 40150,
+                "lowerCriticalVal": 3285
+              }
+            },
+            {
+              "name": "MCB_UP29_FAN_6_R_RPM",
+              "sysfsPath": "/run/devmap/sensors/MCB_FAN_CPLD/fan12_input",
+              "type": 4,
+              "thresholds": {
+                "maxAlarmVal": 34760,
+                "minAlarmVal": 2844,
+                "upperCriticalVal": 34760,
+                "lowerCriticalVal": 2844
+              }
+            },
+            {
+              "name": "MCB_PSP3_XP12R0V_PB3_IOUT",
+              "sysfsPath": "/run/devmap/sensors/PMBUS_3/curr1_input",
+              "type": 2,
+              "thresholds": {
+                "maxAlarmVal": 145,
+                "upperCriticalVal": 167
+              },
+              "compute": "@/1000.0"
+            }
+          ],
+          "productProductionState": 2,
+          "productVersion": 1,
+          "productSubVersion": 0
+        }
       ]
     },
     {