diff --git a/prosjekt.X/fan_speeeed.c b/prosjekt.X/fan_speeeed.c
index 21d0850..db41f07 100644
--- a/prosjekt.X/fan_speeeed.c
+++ b/prosjekt.X/fan_speeeed.c
@@ -99,10 +99,6 @@ ISR(AC1_AC_vect){ // AC1 vec flag
 ISR (TCA0_OVF_vect) {
     cli();
     
-    // Calculate the fanspeed
-    fan1_history[fan1_history_index] = RPM_calculation(fan1_edge_counter,timer_period_ms);
-    fan2_history[fan2_history_index] = RPM_calculation(fan2_edge_counter,timer_period_ms);
-    
     // Increment the index, or reset if it is at the top
     if (fan1_history_index < 512) {
         fan1_history_index++;
@@ -116,6 +112,10 @@ ISR (TCA0_OVF_vect) {
         fan2_history_index = 0;
     }
     
+    // Calculate the fanspeed
+    fan1_history[fan1_history_index] = RPM_calculation(fan1_edge_counter,timer_period_ms);
+    fan2_history[fan2_history_index] = RPM_calculation(fan2_edge_counter,timer_period_ms);
+        
     // Reset the edge counter
     fan1_edge_counter = 0;
     fan2_edge_counter = 0;