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All replies
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Helpful answers
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Oct 23, 2015 10:39 AM in response to SlickRickby babowa,Did you install them in the two empty slots? That is the correct way. In the new iMacs with the vertical setup, slots 1 and 3 (from the top) should match, and slots 2 and 4 should match.
In the older Macs with side by side arrangement, it was recommended to match them horizontally.
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Oct 23, 2015 10:53 AM in response to babowaby SlickRick,Thanks babowa. I actually moved the 4gb modules into the empty slots and inserted the 16gbs into those two slots. I want the system to look for the 32Gb's first. I kept them staggered. 16 - 4 - 16 - 4
just wanted to be certain I did it correctly. it's been a while since I mixed ram sizes. At $600 a pair, it will be a while before I do another 32gBs.
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Oct 23, 2015 1:36 PM in response to SlickRickby babowa,Since they changed the configuration, I'm not sure that they are still being addressed in a certain order, but be that as it may, as long as you've got them matched, no problem. Still think what you got is an overkill, but... that is what you wanted and that is what you got.
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Oct 23, 2015 1:55 PM in response to anshumgby Ralph9430,Other World Computing guarantees the RAM they sell. Use their website to determine the RAM you need. If they sell it they will guaranteed that it will work in your system.
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Oct 25, 2015 10:55 PM in response to anshumgby SlickRick,Anyone try the 1866mhz ram??? curious if it worked.
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Oct 25, 2015 10:56 PM in response to Bringer42by SlickRick,Could you let us know if the ram worked.. Thanks
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Oct 26, 2015 4:33 AM in response to SlickRickby drxuwang,For those of you who is curious about 1866Ghz ram, I can confirm you it works and it will show as 1867Ghz on the late iMac 2015. I bought this kit: http://uk.crucial.com/ProductDisplay?urlRequestType=Base&catalogId=10153&categor yId=&productId=11732&urlLangId=-1&langId…
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Oct 26, 2015 2:48 PM in response to drxuwangby Bringer42,My new 5K iMac arrived this afternoon and I installed 2 sets of Crucial Ballistix Sport 16GB Kit (8GBx2) DDR3 1866
I got them from Amazon at $88.99 per pair - http://www.amazon.com/gp/product/B00DSGLMSM
About Mac shows 32 GB 1867 MHz DDR3. Not only does the new memory work, according to Geekbench it is faster than RAM that came with the iMac
BEFORE AFTER
Single-Core Score 4486 4569
Multi-Core Score 17424 17816
Memory Single-Core 3649 4141
Memory Multi-Core 3763 4349
The overall scores went up a little because they are mostly based on CPU performance. But the memory specific scores went up a lot.
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Oct 26, 2015 10:14 PM in response to Bringer42by SteveW25561,I'm glad that RAM I posted works! I'm waiting for my iMac to arrive to install them as well -- good news about the speed (although the difference is probably not perceptible, the Ballistix RAM is advertised to be faster than standard RAM). At the price, it was definitely worth it!
Can you show us (eg a picture or text diagram) how you installed them? Did you install them so the faster larger sticks are the first block of memory the Mac sees?
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Oct 26, 2015 10:39 PM in response to SteveW25561by babowa,the Ballistix RAM is advertised to be faster than standard RAM
Just as in FYI....
I am not familiar with the latest iMac; however, on previous models, it was recommended to get RAM with the exact specifications as recommended by Apple as Macs are extremely finicky about the RAM. As well, the Macs were not any faster as they could only address the speed as noted in the specs.
Hopefully these modules will be working correctly.
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Oct 28, 2015 4:44 AM in response to anshumgby spiddyman007,Its funny cause your asking for 3rd party ram when all apple sells is 3rd party ram. Don't act like apple is the underdog anymore and original. No no no. They use LG for the 4K screen and Samsung for all the chips in mobile. And if dell can produce the same 5K screen but better where does this leave them?? There all just getting their supplys from one big factory.
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Oct 31, 2015 1:36 PM in response to spiddyman007by Joe Siegler,>> ]Its funny cause your asking for 3rd party ram when all apple sells is 3rd party ram. <<
I think it's more a case of people not wanting to buy from Apple directly cuz of their grossly overpriced rates on Ram. Hence "first party".
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Nov 3, 2015 10:38 AM in response to SlickRickby Joey0163,I was always under the impression that the two banks should match if running dual-channel when all 4 banks are filled. But, if running dual channel with only 2 dimms, then they should be installed with 1 dimm in Bank 0 and 1 dimm in Bank. This is it how it has worked with all of my Intel motherboards so far as I used to mostly use PC? If I am wrong, please correct me because I'm trying to figure this out with no available info from apple on the late 2015 iMACs.
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Nov 3, 2015 11:11 AM in response to Joey0163by SlickRick,I've asked around and it appears the way I have it set up is the correct way. The computer came from the factory with the original ram staggered.
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Nov 5, 2015 11:42 AM in response to SlickRickby Melquiades38,Hi everyone, i'm writing from Italy asking your help, sorry if my english is not perfect. I'm planning to buy new Imac 275k and want to upgrade ram to 32gb. Can you say me if this will fit correctly?http://www.amazon.it/gp/product/B00VMCUBK4?psc=1&redirect=true&ref_=ox_sc_act_ti tle_2&smid=A11IL2PNWYJU7H I think this is the right choice but i'd like you confirm me. Thank you very much