I recently bought this. http://www.tigerdirect.ca/applications/SearchTools/item-details.asp?EdpNo=1026780&sku=C13-6034 I was planning on having it make my PC run faster obviously seeing as i currently only have this. http://www.tigerdirect.ca/applications/SearchTools/item-details.asp?EdpNo=1071036&Tab=2&NoMapp=0 The ultra has been running well for about 2 weeks so i decided to upgrade for better game play. i ordered the corsair and when i put it in my computer wouldn't work. The lights would come on and it would sound like it was struggling to turn on. My moniter went into power saving mode and nothing would ever come up on screen. I tried installing them in different order and now i'm back to square one. Any advice you could give would be much appreciated!