Hi, I just gotten myself an iMac that comes with 4Gb which isn't enough for my use, Will want to upgrade it to 16Gb once and for all. Have gone throughout the forum and notice that some ppl have manage to upgrade their using kingston KVR 1333 which is easily available at my place here whereas some have not been able to run their macs, is this a problem with the batches of KVR rams?

Is it still advisable to go for KVR rams as they're cheap and easily available at my place here and since the iMac is huge and heavy, not possible for me to bring it over to the shop for installation and testing, should i just grab the KTA Rams to be safer?

Thanks