my mac has 2 slots each containing 2 G of ram does this mean i can put the 4 G in one slot and then move 2 over to the other slot to make 4 in tht one
1307736
You can replace one of the two sticks of 2 GB of RAM, which means you will have 6 GB. Before you proceed with this configuration, I recommend you confirm both RAM sticks (new and old) are the same speed (1600MHz).
1307737
No. You can replace the two 2G RAM chips in your Mac with two 4G RAM chips (if the model of Mac you have will accept and read a total of 8G of RAM) and you should notice improved speed and absence of hesitation and "spinning beachball." If you replace only one 2G RAM chip with a 4G RAM chip, you won't see a lot of difference from the original(I was told by a Mac technician).
1307738
No, of course not. One card takes up one slot, how are you going to get two in one ? It's strongly recommended you use matching ram for each slot (i.e. you could have 4 GB in one slot and 2 GB in the other for 6GB total, but it's not recommended).
373072
Hey,I'm guessing that you can. My laptop came with 1GB of RAM, two 512MB chips. When I got this I took out one of the 512MB chips and put the 2GB one in its place, so my laptop currently has 2.5GB of RAM. Did that a few months ago and I've had no issues at all so far. If you can put a 2GB chip in one then you would be able to put one in the other slot as well. A 32-bit system won't recognize more than 4GB of RAM anyway so yh, I think you can put two in. I'm planning on getting another one soon to give my system 4GB. :) Hope that answers your question...and I hope I wasn't too long Hey,I'm guessing that you can. My laptop came with 1GB of RAM, two 512MB chips. When I got this I took out one of the 512MB chips and put the 2GB one in its place, so my laptop currently has 2.5GB of RAM. Did that a few months ago and I've had no issues at all so far. If you can put a 2GB chip in one then you would be able to put one in the other slot as well. A 32-bit system won't recognize more than 4GB of RAM anyway so yh, I think you can put two in. I'm planning on getting another one soon to give my system 4GB. :) Hope that answers your question...and I hope I... » Read More Hey,I'm guessing that you can. My laptop came with 1GB of RAM, two 512MB chips. When I got this I took out one of the 512MB chips and put the 2GB one in its place, so my laptop currently has 2.5GB of RAM. Did that a few months ago and I've had no issues at all so far. If you can put a 2GB chip in one then you would be able to put one in the other slot as well. A 32-bit system won't recognize more than 4GB of RAM anyway so yh, I think you can put two in. I'm planning on getting another one soon to give my system 4GB. :) Hope that answers your question...and I hope I wasn't too long « Show Less
570641
My Mac Pro is also an 8 core with 8 memory slots. The ram slots worked perfectly. The Year of My Mac pro is a 2008 so it worked well.
2236022
I love this ram, it is incredible I don't think it will work on a Mac though. Other people have gotten it for Mac and said that it didn't work for them
372507
No, there is only room for 2 GB of ram. You will have to remove the 512 ram and replace them with 4 modules of 512 each. They need to be in matched pairs of memory modules.
1830498
Awesome thanks, cuz I recently ordered some RAM and I got one that isn't compatible with the iMac. Thanks again
541355
If memory serves me, no pun intended. If you have four slots they all have to be the same speed otherwise it will perform at the lowest speed, I have put 3 GB in 3 slots and 256mb in the fourth and had no issue. You will also want to see the maximum gigs your motherboard will support, if your motherboard only supports 4 gigs and not 8 gigs then adding it to what you already have would be pointless.
275802
Turn the lock on the bottom of your macbook and pop out the battery. Under the battery you should be able to find the factory installed RAM with a simple locking mechanism that differs for each model, there should be picture instructions showing how to pop those old cards out and replace them with the new ones, exactly as they were arranged. There are probably 4 slots arranged like so: AB CD The 2 new RAM sticks will work @ maximum potential in slots A and B (There might only be A and B anyway). ALSO BE SURE YOU ARE GROUNDED, don't do it on the carpet or else you'll completely fry your new RAM and/or hard drive to death with the static. Serious business. If you don't know how to ground yourself, look that up first.
1618244
You got to open your computer ram and see how many slots were there... you said ur computer has 4gb ram usually it should be in 2 slots 2gb each and u can change one of the slot and put the higher gb one to improve performance.. remember before you go for higher gb one you should check online whether ur computer supports the new ram or not..
2019193
You always have to install RAM in pairs, which is why they sell them in two packs. So there are 2 2-packs of 4 GB modules for 16 GB total
2185841
Maybe your mac has two 2GB memory, one in each slot can verify the information system if this is the case you'd have to buy two 4GB memory, so as I did
385998
just look on the web site for witch ram you need becouse ddr2 ram is the same on mac or pc
988138
My Mac runs just fine I admit I didn't pay that much attention to it other then proper installation. I'm running four 4gb cards and there hasn't been an issue. I do advise the if you are only upgrading meaning adding ram not replacing. Leave the original ram in its original location and just add the new ram to the open slots. Hope that help you in your decision.
694663
As per the apple website YES. It should hold a max of 4 gb with 2gb per slot. http://support.apple.com/kb/HT1593 reference.
931674
Those are actually a pair of 4GB modules. If you you buy two of them, you would get the 16GB you aiming at. The only downside is that, since mid-2010 iMacs have only 4 memory slots, you'll have to ditch the two 2GB modules that originally came with your machine. You may want to consider keeping the original modules and add only one pair of 4GB modules, to a total of 12GB, if it's not crucial for you to reach 16GB.
1705388
Use an app called Mactracker. It will tell you what type of RAM and how much you MacBook can actually use, in many cases it's a total of 8GB RAM even if Apple state 4GB. I installed 2x 4GB sticks into a MacBook and it was perfect. So chances are yours will as well. But use Mactracker and look at memory to see specs and maximum ammount of RAM that can be recognised.
46002
Yup, you just have to buy the two 8GB ram sticks and replace the two 4GB ram sticks currently in the computer. However, there are only 2 RAM slots, so you wont be able to have four 4GB sticks, but instead 2 8GB RAM sticks