Im looking to replace the fan on my heatsink which has decided to pack up and after a few days of looking I have yet to find a replacement im happy with this is the fan im trying to replace:http://www.amazon.co.uk/AVC-DV07020B12U-4-Wire-70MM-Fan/dp/B00GQPEMA2 I have not been able to find any real info out about this fan besides the obvious that its a 4 pin 70mm fan which has made finding somthing similar difficult as I would rather have one simiral in spec or better.