diff -r 65f2d62d7838 -r 2129ccee0bd1 Hardware/LPC/F718XX.cs
--- a/Hardware/LPC/F718XX.cs	Wed Aug 04 19:10:20 2010 +0000
+++ b/Hardware/LPC/F718XX.cs	Wed Aug 04 20:27:05 2010 +0000
@@ -87,9 +87,12 @@
       r.AppendLine();
       r.Append("Base Adress: 0x"); r.AppendLine(address.ToString("X4"));
       r.AppendLine();
+
+      if (!WinRing0.WaitIsaBusMutex())
+        return r.ToString();
+
       r.AppendLine("Hardware Monitor Registers");
       r.AppendLine();
-
       r.AppendLine("      00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F");
       r.AppendLine();
       for (int i = 0; i <= 0xF; i++) {
@@ -101,10 +104,15 @@
         r.AppendLine();
       }
       r.AppendLine();
+
+      WinRing0.ReleaseIsaBusMutex();
+
       return r.ToString();
     }
 
     public void Update() {
+      if (!WinRing0.WaitIsaBusMutex())
+        return;
 
       for (int i = 0; i < voltages.Length; i++) {
         int value = ReadByte((byte)(VOLTAGE_BASE_REG + i));
@@ -154,7 +162,9 @@
           fans[i] = (value < 0x0fff) ? 1.5e6f / value : 0;
         else 
           fans[i] = null;        
-      }      
+      }
+
+      WinRing0.ReleaseIsaBusMutex();
     }
   }
 }