diff --git a/main/CMakeLists.txt b/main/CMakeLists.txt
index e4afe855..20d64515 100755
--- a/main/CMakeLists.txt
+++ b/main/CMakeLists.txt
@@ -5,6 +5,7 @@ SRCS
     "EMC2101.c"
     "EMC2302.c"
     "TPS546.c"
+    "TMP1075.c"
     "fonts.c"
     "i2c_master.c"
     "INA260.c"
diff --git a/main/TMP1075.c b/main/TMP1075.c
index 7160bf23..84d7a88c 100644
--- a/main/TMP1075.c
+++ b/main/TMP1075.c
@@ -43,9 +43,9 @@ bool TMP1075_installed(int device_index)
     esp_err_t result = ESP_OK;
 
     // read the configuration register
-    ESP_LOGI(TAG, "Reading configuration register");
+    //ESP_LOGI(TAG, "Reading configuration register");
     ESP_ERROR_CHECK(register_read(TMP1075_I2CADDR_DEFAULT + device_index, TMP1075_CONFIG_REG, data, 2));
-    ESP_LOGI(TAG, "Configuration[%d] = %02X %02X", device_index, data[0], data[1]);
+    //ESP_LOGI(TAG, "Configuration[%d] = %02X %02X", device_index, data[0], data[1]);
 
     return (result == ESP_OK?true:false);
 }
@@ -56,7 +56,7 @@ uint8_t TMP1075_read_temperature(int device_index)
 
     ESP_ERROR_CHECK(register_read(TMP1075_I2CADDR_DEFAULT + device_index, TMP1075_TEMP_REG, data, 2));
     //ESP_LOGI(TAG, "Raw Temperature = %02X %02X", data[0], data[1]);
-    ESP_LOGI(TAG, "Temperature[%d] = %d", device_index, data[0]);
+    //ESP_LOGI(TAG, "Temperature[%d] = %d", device_index, data[0]);
     return data[0];
 }
 
diff --git a/main/TPS546.c b/main/TPS546.c
index 67e8a139..0472ba61 100644
--- a/main/TPS546.c
+++ b/main/TPS546.c
@@ -371,7 +371,7 @@ int TPS546_init(void)
     float vin;
     float iout;
     float vout;
-    uint8_t read_mfr_revision[3];
+    uint8_t read_mfr_revision[4];
     int temp;
     uint8_t comp_config[5];
 
@@ -381,6 +381,7 @@ int TPS546_init(void)
     smb_read_block(PMBUS_IC_DEVICE_ID, data, 6);
     ESP_LOGI(TAG, "Device ID: %02x %02x %02x %02x %02x %02x", data[0], data[1],
                  data[2], data[3], data[4], data[5]);
+    /* There's two different known device IDs observed so far */
     if ( (memcmp(data, DEVICE_ID1, 6) != 0) && (memcmp(data, DEVICE_ID2, 6) != 0) )
     {
         ESP_LOGI(TAG, "ERROR- cannot find TPS546 regulator");
diff --git a/main/system.c b/main/system.c
index 5172d3f7..74c619c0 100644
--- a/main/system.c
+++ b/main/system.c
@@ -5,6 +5,7 @@
 #include "i2c_master.h"
 #include "EMC2101.h"
 #include "EMC2302.h"
+#include "TMP1075.h"
 #include "INA260.h"
 #include "adc.h"
 #include "connect.h"
@@ -96,10 +97,17 @@ static void _init_system(GlobalState * GLOBAL_STATE)
             EMC2101_set_fan_speed(1);
             break;
         case DEVICE_HEX:
-            // Fan Tests
-            EMC2302_init(nvs_config_get_u16(NVS_CONFIG_INVERT_FAN_POLARITY, 1));
-            EMC2302_set_fan_speed(0, (float) nvs_config_get_u16(NVS_CONFIG_FAN_SPEED, 100) / 100);
-            EMC2302_set_fan_speed(1, (float) nvs_config_get_u16(NVS_CONFIG_FAN_SPEED, 100) / 100);
+            // Fan config - Hex has two fans
+            //EMC2302_init(nvs_config_get_u16(NVS_CONFIG_INVERT_FAN_POLARITY, 1));
+            //EMC2302_set_fan_speed(0, (float) nvs_config_get_u16(NVS_CONFIG_FAN_SPEED, 100) / 100);
+            //EMC2302_set_fan_speed(1, (float) nvs_config_get_u16(NVS_CONFIG_FAN_SPEED, 100) / 100);
+            // temperature sensors - Hex has two sensors
+            if (TMP1075_installed(0)) {
+                ESP_LOGI(TAG, "Temperature sensor 0: %d", TMP1075_read_temperature(0));
+            }
+            if (TMP1075_installed(1)) {
+                ESP_LOGI(TAG, "Temperature sensor 1: %d", TMP1075_read_temperature(1));
+            }
             break;
         default:
     }