Hi, i myself have the same problem. I purchased a 2 X 2 GB RAM 800 Mhz upgrade kit for my iMac 20" 2.4 Ghz Core 2 Duo 1 GB RAM. I bought the kit which was recommended on your website for my specific model. Unfortunately, the ram doesn't work. The computer won't turn on, instead it makes a loud beeping sound that keeps repeating until i power off the computer. If the ram is tested, why is it faulty? My computer works fine with the 1 GB of ram i had previously installed. I've upgraded many computers before, including another 20" iMac i owned in the past using different Ram Module manufacturers and never had one problem. I'm disappointed.
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