Pros: Super easy to overclock with my NVIDIA chipset 780i motherboard using the memory's SLI expert mode. Overclocked my Q9450 CPU to 3.5GHz, which makes the FSB ~440MHz. My memory overclock is link/sync so that makes it run at 875MHz. Bios picked all the ram settings automatically, ran memtest86 overnight with 0 errors.

Cons: Ordered two sets of ram (8GB) for my vista x64 OS. One of the sticks was bad, the computer would beep and not boot when installed. Had to RMA. Newegg took its time sending a replacement. Replacement worked fine though, and now I'm happy with the system.

Overall Review: Windows vista rates memory at 5.9. Love having 8Gigs. 4 eggs because had to RMA and newegg was slow sending replacement. Otherwise this memory is excellent.