Ordered two kits of this memory, which together cost significantly more than the motherboard or CPU.
One DIMM of the four was bad. After initially causing constant blue screen crashes, it finally completely failed. The machine won't boot, or even get into power on self test, with this DIMM installed. The other three DIMMs work fine in any combination.
OK, these things happen. But the service from OCZ leaves a lot to be desired. First, they want you to open a "trouble ticket", which requires you to fill out a lot of information. Then after a delay, they get back to you via email requesting the exact same information you gave them initially. Then you wait again. In fact, I'm still waiting.
They have not made a fan of me. Should have purchased the Crucial memory.