Amamax sent me the wrong ram to start with, I mean the numbers weren't even close to being the same as the one in the picture or the listing. I tried it anyway to see if it might be another brands substitute and my machine wouldn't even try to boot with this ram in it. The packaging was a joke, they dropped it in a ziplock bag and put  that in a bubble envelope none of which offered much protection but by some miracle it did make it without getting broken. When I emailed them about the issue they took several days to get back to me and when they did they didn't even offer to replace it, they just told me to return it. I ask you what the hell kind of service is that? Emails take forever out of this place and when you are lucky enough to get one it's far from being friendly. I will NEVER buy another item from AMAMAX again EVER!