diff -r 3fdadd4a830f -r 05bf128434c6 Hardware/LPC/IT87XX.cs
--- a/Hardware/LPC/IT87XX.cs	Sat Mar 27 12:57:09 2010 +0000
+++ b/Hardware/LPC/IT87XX.cs	Sat Mar 27 13:04:34 2010 +0000
@@ -165,9 +165,7 @@
 
         sensor.Value = voltageGains[sensor.Index] * 0.001f * (value << 4);
         if (sensor.Value > 0)
-          ActivateSensor(sensor);
-        else
-          DeactivateSensor(sensor);
+          ActivateSensor(sensor);        
       }
 
       foreach (Sensor sensor in temperatures) {
@@ -179,9 +177,7 @@
 
         sensor.Value = value + sensor.Parameters[0].Value;
         if (value < sbyte.MaxValue && value > 0)
-          ActivateSensor(sensor);
-        else
-          DeactivateSensor(sensor);
+          ActivateSensor(sensor);        
       }
 
       foreach (Sensor sensor in fans) {
@@ -198,7 +194,7 @@
           if (sensor.Value > 0)
             ActivateSensor(sensor);
         } else {
-          DeactivateSensor(sensor);
+          sensor.Value = null;
         }
       }      
     }