Just to let everyone know, DO NOT, I REPEAT, DO NOT buy RAM from:
I ordered a dual channel kit from them, they sent me a defective kit. One stick was usable, the other was faulty. I had a cross ship, they sent me another kit, this time, both sticks were defective. Their site says that they guarantee their products to be not DOA. I told them about this and they refused to compensate in any way other than allowing me to return both sticks. They wouldn't pay for the return shipping of the product and they won't do anything else. I'm now returning both kits of RAM and buying from NewEgg. So, spread the word, DO NOT BUY ANYTHING from hardcorecooling.com. They have somewhat cheap prices, but their products are just that, cheap, and defective.