Hi, I have just upgraded my iMac 2.7Ghz 27" Mid - 2011 using 2 x Modules of CT2C8G3S1339MCEU. Its rebooting for no reason with no errors. Spec on the Crucial website says I need CT3373715 however it seems they're identical. I ram Memory tests, they're good. Thoughts? Regards, **bleep**.
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