Instant Computer Upgrade
These memory chips were shipped extremely quick, so fast that they had to hold the package at the local FedEx until the expected delivery date arrived. My biggest problem was finding the correct screwdriver, even with a philips head, a small flat standard head works, not any philips I could find. The memory chips snapped in to place on my new mid-2011 new Apple iMac i7 Quad HTT, instantly and perfectly. I had the memory backwards at first, but flipped it and the first DIMM went in very nicely. Repeat on the second and that filled all four of my slots with the original two 2 GB chips, and these two new Kingston chips at 4 GB each, now gives me a total of 12 GB of DDR3 DIMM SoDIMM 1333Mhz RAM on my new iMac i7. Now it purrs so smoothly and the available free RAM is usually around 75% or so. I highly recommend this RAM and it is always advisable to buy your RAM not only in pairs, but all at once. I really should have bought another set of these at the time I bought my first two. Note that you MUST install two of these at a time, and they MUST be identical in specs relating to everything like the speed 1333, DDR3, and SoDIMM.
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