diff --git a/monitor/config_files/p10bmc/ibm,rainier-1s4u/config.json b/monitor/config_files/p10bmc/ibm,rainier-1s4u/config.json
index 8f87e99..143e2f8 100644
--- a/monitor/config_files/p10bmc/ibm,rainier-1s4u/config.json
+++ b/monitor/config_files/p10bmc/ibm,rainier-1s4u/config.json
@@ -4,7 +4,7 @@
             "inventory": "/system/chassis/motherboard/fan0",
             "method": "count",
             "count_interval": 1,
-            "deviation": 15,
+            "deviation": 18,
             "num_sensors_nonfunc_for_fan_nonfunc": 0,
             "monitor_start_delay": 30,
             "fan_missing_error_delay": 20,
@@ -22,7 +22,7 @@
             "inventory": "/system/chassis/motherboard/fan1",
             "method": "count",
             "count_interval": 1,
-            "deviation": 15,
+            "deviation": 18,
             "num_sensors_nonfunc_for_fan_nonfunc": 0,
             "monitor_start_delay": 30,
             "fan_missing_error_delay": 20,
@@ -40,7 +40,7 @@
             "inventory": "/system/chassis/motherboard/fan2",
             "method": "count",
             "count_interval": 1,
-            "deviation": 15,
+            "deviation": 18,
             "num_sensors_nonfunc_for_fan_nonfunc": 0,
             "monitor_start_delay": 30,
             "fan_missing_error_delay": 20,
@@ -58,7 +58,7 @@
             "inventory": "/system/chassis/motherboard/fan4",
             "method": "count",
             "count_interval": 1,
-            "deviation": 15,
+            "deviation": 18,
             "num_sensors_nonfunc_for_fan_nonfunc": 0,
             "monitor_start_delay": 30,
             "fan_missing_error_delay": 20,
diff --git a/monitor/config_files/p10bmc/ibm,rainier-4u/config.json b/monitor/config_files/p10bmc/ibm,rainier-4u/config.json
index 9a0b884..9c19ed1 100644
--- a/monitor/config_files/p10bmc/ibm,rainier-4u/config.json
+++ b/monitor/config_files/p10bmc/ibm,rainier-4u/config.json
@@ -4,7 +4,7 @@
             "inventory": "/system/chassis/motherboard/fan0",
             "method": "count",
             "count_interval": 1,
-            "deviation": 15,
+            "deviation": 18,
             "num_sensors_nonfunc_for_fan_nonfunc": 0,
             "monitor_start_delay": 30,
             "fan_missing_error_delay": 20,
@@ -22,7 +22,7 @@
             "inventory": "/system/chassis/motherboard/fan1",
             "method": "count",
             "count_interval": 1,
-            "deviation": 15,
+            "deviation": 18,
             "num_sensors_nonfunc_for_fan_nonfunc": 0,
             "monitor_start_delay": 30,
             "fan_missing_error_delay": 20,
@@ -40,7 +40,7 @@
             "inventory": "/system/chassis/motherboard/fan2",
             "method": "count",
             "count_interval": 1,
-            "deviation": 15,
+            "deviation": 18,
             "num_sensors_nonfunc_for_fan_nonfunc": 0,
             "monitor_start_delay": 30,
             "fan_missing_error_delay": 20,
@@ -58,7 +58,7 @@
             "inventory": "/system/chassis/motherboard/fan3",
             "method": "count",
             "count_interval": 1,
-            "deviation": 15,
+            "deviation": 18,
             "num_sensors_nonfunc_for_fan_nonfunc": 0,
             "monitor_start_delay": 30,
             "fan_missing_error_delay": 20,
@@ -76,7 +76,7 @@
             "inventory": "/system/chassis/motherboard/fan4",
             "method": "count",
             "count_interval": 1,
-            "deviation": 15,
+            "deviation": 18,
             "num_sensors_nonfunc_for_fan_nonfunc": 0,
             "monitor_start_delay": 30,
             "fan_missing_error_delay": 20,
@@ -94,7 +94,7 @@
             "inventory": "/system/chassis/motherboard/fan5",
             "method": "count",
             "count_interval": 1,
-            "deviation": 15,
+            "deviation": 18,
             "num_sensors_nonfunc_for_fan_nonfunc": 0,
             "monitor_start_delay": 30,
             "fan_missing_error_delay": 20,