Well if this one is indeed faulty which I'm yet to find out then it'll be my first OCZ have a bit of a rep for it, but I've 6 in tot over the years without failures
Jeeeesus that looks awesome!
Randomish question but is this the pump/rest combo you have??
http://www.overclockers.co.uk/showproduct.php?prodid=WC-163-XS&groupid=962&catid=2133&subcat=