diff -r df64b56ece65 -r 6022d558ef7d Hardware/RAM/GenericRAM.cs
--- a/Hardware/RAM/GenericRAM.cs	Thu Jul 26 06:50:56 2012 +0000
+++ b/Hardware/RAM/GenericRAM.cs	Thu Jul 26 06:51:19 2012 +0000
@@ -14,6 +14,7 @@
   internal class GenericRAM : Hardware {
 
     private Sensor loadSensor;
+    private Sensor usedMemory;
     private Sensor availableMemory;
 
     public GenericRAM(string name, ISettings settings)
@@ -22,7 +23,11 @@
       loadSensor = new Sensor("Memory", 0, SensorType.Load, this, settings);
       ActivateSensor(loadSensor);
 
-      availableMemory = new Sensor("Available Memory", 0, SensorType.Data, this, 
+      usedMemory = new Sensor("Used Memory", 0, SensorType.Data, this,
+        settings);
+      ActivateSensor(usedMemory);
+
+      availableMemory = new Sensor("Available Memory", 1, SensorType.Data, this, 
         settings);
       ActivateSensor(availableMemory);
     }
@@ -45,6 +50,9 @@
         (100.0f * status.AvailablePhysicalMemory) /
         status.TotalPhysicalMemory;
 
+      usedMemory.Value = (float)(status.TotalPhysicalMemory 
+        - status.AvailablePhysicalMemory) / (1024 * 1024 * 1024);
+
       availableMemory.Value = (float)status.AvailablePhysicalMemory /
         (1024 * 1024 * 1024);
     }