Sidebar Sidebar
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

iMac 27" Late 2015 Ram Upgrade

dime4dice

dime4dice

macrumors newbie
Original poster
Feb 3, 2015
12
0
just got my iMac 2 days ago. This computer is very fast. However, I would like to increase that lol. My model only came with 8gb Ram, I would like to increase it. Which site provides the best purchase of ram. Should I go with corsair or crucial. Sorry I'm a newb to this.
 
briloronmacrumo

briloronmacrumo

macrumors 6502a
Jan 25, 2008
531
340
USA
mmomega

mmomega

macrumors demi-god
Dec 30, 2009
3,879
2,089
DFW, TX
briloronmacrumo said:
The MacRumors discussion on 2133 MHz Ram might help too: https://forums.macrumors.com/threads/2133mhz-ram-test-results.1929801/
[doublepost=1456613498][/doublepost]Does anyone know if Kingston offers the Hyper X 2133 MHz in a 16GB size ( thus allowing 4 x 16GB = 64GB in the latest iMac )?
[doublepost=1456615099][/doublepost]
DDR3
Click to expand...
From what I saw on Kingstons website, atm they only offer up to 8GB modules for 32GB is the max for HyperX Impact in our iMacs.
Screen Shot 2016-02-28 at 1.53.30 PM.png
 
dubmick

dubmick

macrumors regular
May 8, 2008
100
20
do you still need to pair the memory?

I have 2 x 4gb, was thinking of getting 1 x 8gb to use in one of the other slots.
 
boomvader

boomvader

macrumors member
Nov 13, 2015
31
20
Asheville, NC
Just ordered a 64GB kit from OWC. About 30 minutes or so after my purchase, a rep from OWC personally called me to make sure I had ordered the kit for the correct iMac. Great service! Looking forward to receiving the new IMac and the memory upgrade!
 
Ludatyk

Ludatyk

macrumors 601
May 27, 2012
4,950
3,776
Texas
imacken said:
I might be wrong, but I don't think that will work. It's DDR3L you need to get.
Click to expand...

Well.. Comparing ddr3l and ddr3 its about the voltage.. Whereas ddr3l is more flexible than ddr3, but I already ordered the ddr3 to mix with Apple's and if it don't work.. I'll return it.
 
I

imacken

macrumors 65816
Feb 28, 2010
1,232
127
Ludatyk said:
Well.. Comparing ddr3l and ddr3 its about the voltage.. Whereas ddr3l is more flexible than ddr3, but I already ordered the ddr3 to mix with Apple's and if it don't work.. I'll return it.
Click to expand...
We'll see. It might work, but I'm sure it's DDR3L SODIMM you need.
If you go to the Crucial site and put in your iMac details, you'll see it comes up with the DDR3L type spec I mentioned.
Fingers crossed!
 
  • Like
Reactions: Ludatyk
Ludatyk

Ludatyk

macrumors 601
May 27, 2012
4,950
3,776
Texas
imacken said:
We'll see. It might work, but I'm sure it's DDR3L SODIMM you need.
If you go to the Crucial site and put in your iMac details, you'll see it comes up with the DDR3L type spec I mentioned.
Fingers crossed!
Click to expand...

Thanks! I canceled the order.. gonna go with DDR3L instead..

Scratch that... Unable to cancel. Looks like I'll get a chance to see if it works :)
 
I

imacken

macrumors 65816
Feb 28, 2010
1,232
127
I think it should be ok. AFAICS, the main difference is the lower voltage of the L ram, which therefore gives off less heat than the 'normal' DDR3.
 
A

AppleHater

macrumors 6502a
Jun 9, 2010
788
104
I was set to get Crucial memory which has been out of stock since iMac 27 launch back in late 2015. Checking out the Crucial website, I'm no longer sure for it. Kingston sounds good, but since it's different speed, I need to replace 8GB that came with my iMac. Never used OWC before...
 
T

thanhtrdang

macrumors newbie
Oct 30, 2020
2
0
You guys can watch this video. It makes sense.

Long story short, let's say you have got 2x4 GB (old ones) and 2x8 (new ones):
1. Replace 2 old ones by 2 new ones.
2. Put 2 old ones into the remaining slots.

I hope that help.
 
You must log in or register to reply here.
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.
Top Bottom