MacBook can't handle 3GB ram?!

I tried installing 3gb ram on my macbook and it wouldn't even boot. At first I thought I hurt a slot while inserting the ram but I tried both sticks (2GB*1 1GB*2) in both slots and they all worked, they just won't work together.

 

Maybe it is a limitation of the EFI?

 

did you chechk the mhz of both rams. i had a problem using rams having different mhz on my pc.

 

Did you try changing over the modules in the RAM slots? Most computers don't mind but I found the Samsung R20 wanted the slower RAM in slot 1. Strangely, it still booted but there was noise on the display as if the graphics were getting corrupted.

John

 

If I am not mistaken, the MB supports a maximum of 2GB RAM. It is the MBP which supports 3GB.

 

I tried all the above and yes, they are both 667MHz. I think it's like Wail said, 2GB RAM is the maximum.

 

Wail is definately right. Macs have lower hardware specs naturally than PCs as the OS is less demanding :. Mac think you don't need so much memory. Macbook Pros are still beaten on Benchmark scores by midrange PC laptops costing half the price though...
There's nothing you can do about this unfortunately.
sorry I can't give any more help

 

Macs have lower hardware specs naturally than PCs as the OS is less demanding

Ummm, no? Macs use the same chipsets and parts as any other PC vendor out there. This sounds like Apple's EFI problem to me.

 

That's untrue according to this:
http://eshop.macsales.com/Reviews/Framework.cfm?page=/Tips/macbookcore23gb/macbookcore23gb.html
The MB can support up to 3GB of RAM.

I'm not sure why it won't work for you though.

 

night check the spec of a macbook pro, and look at a PC for the same price.... Incomparible

 

Then why wouldn't it work with my macbook? Ouch! I just realized mine is a core duo, not a core 2 duo I got this used off a friend of mine for cheap, but I was told it was a core 2 duo! He is a real newbie so I'm sure it was an inosent mistake. Oh well.

 

i know how to settle this. Macbook pros are the only macbooks that can support 3gb ram look at the mac website and it says so. http://store.apple.com/1-800-MY-APPLE/WebObjects/AppleStore?family=MacBook

 

I've had a look at that ad., and not wanting to get rude in my answer, but there is one issue that come to mind ...

The ad. states (Apple "strongly recommends" you add memory in matched pairs, and that's why they don't offer a 3GB factory configuration.), but that statement isn't exactly true; since Apple does recommend 3GB for their MBP and hence that wouldn't be "matched pairs".

As much as I would like to see this as being acurate; my question to the original poster of this thread, IBMac, .... what made you think of doing a 3GB upgrade? Had you heard it was doable, or was it just something you wanted to give a go at?

 

Tigerdirect.com has a specific Corsair 3GB kit for Mac notebooks

http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=2968797&CatId=2453

And on the Corsair site it states that:

"1GB upgrade module and 2GB upgrade kit are compatible with the MacBook, the MacBook Pro, and Intel-based versions of the iMac

3GB upgrade kit is compatible with the MacBook Pro, and the Intel-based models of the iMac supporting 3GB of system memory"

See link for more details:
http://www.corsairmemory.com/corsair/mac_memory.html

 

I stand corrected ..

Now, back to main poster's post ... who is it that he can't get his MB to support 3GB?

 

Just checked quickly on the Apple site and if you look here:

http://store.apple.com/1-800-MY-APP...browse&mco=4124CE5A&node=home/macbook/macbook

...the problem we run into with the MacBook is that it states "Memory up to 2GB". Hmmmmm, looks like the 3GB won't work.