I'd stick to Crucial RAM. I don't like using the non stock voltage (1.5V).
You don't know 3 years from now if that extra voltage will cause premature wear.
The RAM doesn't set the voltage, I believe. It's the computer that sets that. I remember from my PC days that if I put higher-voltage-requirement RAM in my PC I had to adjust the timings in the BIOS to run it. With that logic, if the iMac didn't want to run at 1.5v, it won't. I can't change any settings. Thus, I'm not even remotely worried.
Actually this memory (Corsair) doesn't say 1.35V/1.5V. It just says 1.5V. No 2 modes. I'm not completely sure either. But I'd stick to 1.35V what Apple intended.
bottom line is add either the crucial or corsair, there will be zero noticeable differences.
wtf, i just got my 27 in along with the 32 gb or corsair ram i ordered, apparently im an idiot because i ordered the desktop ram which i assume was what i needed, and its way to big (physically in size to fit). So you guys using the corsair got the one that says laptop? Like this one here, is this the version you guys ordered? I put this one in my macbook pro, didnt realized it worked for the imac as well...*******!!!!
and why the **** does it say laptop!!!
That looks like the right one.
I ordered this...
http://www.amazon.com/Corsair-Venge...758168&sr=8-2&keywords=corsair+vengeance+16gb
thanks man, dammit thats the one i was going to oder until i saw it said laptop....why does it say laptop? Do you know?
Because.... it IS laptop memory! The iMac uses laptop memory.