Question 1

Is this compatible with iMac mid 2010? And, can I install 4 x 4Gb RAMs, replacing the 2 x 2Gb ones that originally come with it? Thank you

Accepted Answer

Yes, it is compatible and you can install 4*4GB or 2*8GB (16GB in total). If your model is 27 inch i5/i7, it can supports up to 32GB.

Question 2

How do you install this. my 2011 imac 21.5inch has stopped woking and the apple forum says its the ram. complete novice!!

Accepted Answer

It really is very easy, Charlie. It takes 5 minutes.

Find your iMac model here and follow the instructions:
https://support.apple.com/en-gb/HT201191

Handle the memory cards carefully (avoid oil, grease, dust etc) but also when you install, make sure you push until you feel/hear them click into place.

Good luck!

Cheers

Mike

Question 3

Will this fit a mid 2011 21.5 inch imac?

Accepted Answer

Yes, this memory is compatible with your mid-2011 21.5 inch iMac. You are welcome to purchase it to upgrade your system. If you have any other questions, please feel free to contact us anytime at support@timetecinc.com. 
Best regards, 
K.L. 
Timetec International Inc.

Question 4

Mid 2011 imac compatible?
imac 21,5 has 2 x 2gb  standard installed 
are these 2x 4gb modules compatible and can be they fitted in addition ?

Accepted Answer

I have a macbook pro from the same year and it had two ports of 2gb, I then brought X 2 DDR3 8gb modules and they are perfect.

Be warned though, dont expect a massive jump in speed, I mean like Huge,  Because its all about getting an SSD. A solid state Hardrive will work nicely with x2 DDR3 8gb modules. It will fly like the the wind. Seriously.

I've maxed my 2011 MBP to 16gb DDR3 but there was only a slight difference from 8gb. Though It was definitely faster I wasn't what I expected.

Oh and by the way if you're planning on filling up both slots, make sure they are equal, eg slot 1. 8gb. Slot 2. 8gb. They don't like uneven memory. It will make it faster by a bit and you won't get any issues. At one point I had an 8gb and a 2gb, it didn't blowup or anything haha but would have caused a few small issues if I'd left it in forever. I changed it after a few months.

But do please bear in mind that an SSD is like putting 20gb in. The RAM can only work as fast as the HD and an old mechanical one will slow it down.

Think of it like a record player and the data is written from the rim to the middle. Well if your working on a new piece and want to go and use a program you used when you first got it, its going to take a while to load.

I've still got and use my 2011 MBP but I also have a SSD PC with only 8gb RAM. There is 16gb in my old Mac. And the PC with the SSD is like x10 the speed. I loads quicker than a tablet.

Hope that helped. Shame apple make it so hard now to get in and play about unlike they used to

ASIN	B00SNM1LFU
Best Sellers Rank	34,473 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 185 in Computer Memory
Brand Name	Timetec
Column Address Strobe Latency	9
Compatible Devices	Laptop
Country of Origin	Taiwan
Customer Reviews	4.6 4.6 out of 5 stars (228)
Data Transfer Rate	1333 MHz
Form Factor	204 Pin
Manufacturer	Timetec
Manufacturer Part Number	78
Memory Form Factor	SODIMM
Memory Generation	DDR3
Memory Speed	1333 MHz
Model Name	LYSB00SNM1LFU-ELECTRNCS
Model Number	78AP26NUS1R8-8G
Number of Items	1
Number of Packs	1
Number of Pins	204
Product Features	MAC
Product Warranty	Lifetime Warranty Against ManufacturerS Defects
RAM Memory Technology	DDR3
RAM Size	4 GB
UPC	765441333963
Unit Count	1.0 count
Voltage	1.5 Volts

Timetec 4GB Compatible for Apple DDR3 1333MHz PC3-10600 CL9 for Mac Book Pro (Early/Late 2011 13/15/17 inch), iMac (Mid 2010, Mid/Late 2011 21.5/27 inch), Mac Mini(Mid 2011) SODIMM MAC RAM Upgrade

Details

Details

Description

Specifications

Common Questions