diff --git a/core/java/src/freenet/support/CPUInformation/CPUID.java b/core/java/src/freenet/support/CPUInformation/CPUID.java
index bde7251b5..e3712e4ad 100644
--- a/core/java/src/freenet/support/CPUInformation/CPUID.java
+++ b/core/java/src/freenet/support/CPUInformation/CPUID.java
@@ -328,11 +328,14 @@ public class CPUID {
             return getCPUFamily() > 6 || (getCPUFamily() == 6 && getCPUModel() >=7);
         }
         public boolean IsPentium4Compatible()
-        {
+        {	
+			// P4
         	if (getCPUFamily() >= 15){
         		return true;
+			// Xeon MP (45nm) or Core i7
         	} else if (getCPUExtendedModel() == 1 && (getCPUFamily() == 6 && (getCPUModel() == 10 || getCPUModel() == 13))){
         		return true;
+			// Core 2 Duo
         	} else if (getCPUExtendedModel() == 0 && getCPUFamily() == 6 && getCPUModel() == 15){
         		return true;
         	} else {