hi guys i just bought 2 packs of these and installed them http://www.amazon.co.uk/gp/product/B0050119O0/ref=oh_details_o01_s01_i00?ie=UTF8&psc=1 and when i load windows i get a message saying - the following channel memory did not pass cpu test please remove the memory then plug again channel b,ive done what it asks but it keeps doing it,but when i continue to windows it only loads 8gb of the 16gb from slot a1 a2 only ,but the weird thing is if i remove the 3rd slot known as channel b and replace it with this stick instead it loads all ok http://www.amazon.co.uk/gp/product/B0057Q4AGW/ref=oh_details_o03_s00_i00?ie=UTF8&psc=1 but at lower speeds,im so anouyed atm. any help please is appreiceated