amit229 wrote:
I want to upgrade my MacBook to 16 GB but apple says warranty would be good then. I have 6 months of warranty remaining so I want to put one stick of 8 GB for now. After warranty expires I will put serving stick. Apple website says for best performance both the slots should be occupied. Has anybody tried this and how much performance impact does it has.
I would not hesitate to install the full 16GB. RAM works most efficiently in matched pairs.
You can run a single stick with a slightly performance hit (10-15%?). This is certainly what you do if you have a bad bank, ie run a single stick in a single bank.
If at anytime you have to have warranty work done—simply replace your custom RAM with the OEM RAM that came with your Mac before you submit for repair.
Under a warranty repair Apple would replace all RAM to the specs the Mac shipped with.
Most likely you would not get your 16GB of RAM back and it will be lost in the process.
MacBook Pro (15-inch Mid 2012), macOS (10.12.3), i7 480GB SSD 16GB RAM iPhoneSE iOS10.2, Parallels10.0.2, HP OfficeJet Pro 8620
amit229 wrote:
.
I have Samsung 850 EVO 250GB SSD with me but could not upgrade as I could not manage to get SATA to USB power cable. I went to Apple service center but they charge INR 2500 (~$36) to perform an upgrade which will NOT include disk copy.
Depending on where you live, external enclosure are relatively inexpensive:
https://eshop.macsales.com/shop/USB2/OWC_Express
you can read more: How to create a boot clone
Yes,
apple does not support more than 8 GB in the 2012 MacBook but many of us have upgraded to 16 and experienced no ill after effects when the correct RAM (e.g. New RAM tested on that model computer, not from your neighbors HP that he spilled Cherry Faygo all over) is used and correctly installed.
For more information you can try Mac Sales or other vendors like Crucial and Corsiar, etc.
iIf you upgrade and do run into an issue you can always use the previous configuration and let Apple know you intentionally voided their warranty based on research they made when 16GB configurations were not available for that Mac and when they actually never pursued looking into when technology passed that device in order to see for themselves.
16GB RAM in that Mac is 8GB RAM x2 not 16GB x1. A single 16GB chip could cause problem. If in doubt contact the vendor you wish to buy from for the potential points of failure.
Match the RAM by purchasing a 16GB (8GB x2) kit, you will likely run into no problems at all. Mix it and you could.
Take the old RAM out and keep it in the event you need it.
I just upgraded my Macbook with 8GB RAM in one slot and let the other slot be empty. This has drastically improved the performance of running applications. The boot time, however, it more or less the same.
I have Samsung 850 EVO 250GB SSD with me but could not upgrade as I could not manage to get SATA to USB power cable. I went to Apple service center but they charge INR 2500 (~$36) to perform an upgrade which will NOT include disk copy. INR 2500 is lot of money here considering that I got 8 GB Crucial RAM for INR 3900.
So I will perform upgrade myself once I manage to get the cable.
Satisfied with the performance already. Eagerly waiting to upgrade Disk to SSD.
Thanks a lot guy for the help.
A minor performance hit is all it is.
I have never had any genius bar technician make any comments regarding warranty provisions when I have installed 16 GB RAM and HDDs/SSDs replacing original Apple storage.
Ciao.
Is it fine to run with one slot empty. Apple does not recommend it and days performance might be hit.
Boot time is affected by the total amount of RAM, not how it is distributed.
Get the cable at ifixit.com.
Using only one slot for 8 GB RAM in MacBook pro mid 2012 model
