RAM Specs

I want to add another 1GB of RAM to my MacBook Pro 2.16 Core Duo. I got this laptop with 1GB of RAM and I was wondering if anyone knew if it was one 1GB card or two 512GB cards. Second, I looked at the specs for the new card that I would have to buy. I notices that Apple says you need a card with DDR SO-DIMM and PC2-5300. The problem here is that the only PC2-5300 cards I found were DDR2 SO-DIMM. Will that make a difference? Thanks.

MacBook Pros never came with DDR ram.
The ram for all MacBook Pros is the same spec DDR2 667 PC5300
To check what you have, click the Apple - top left, then select About this mac and then click the "More Info button"
Click Memory on the left side of the system profiler and it will show you what is in each slot.
Then - depending on whether you need one or two 1gb chips,
Go to either www.crucial.com and go through the ram configurator - it will recommend the correct chip
or here (for the same Crucial chip) if it is cheaper.
http://www.newegg.com/Product/Product.aspx?Item=N82E16820145048
or here if you need 2 x 1gb
http://www.newegg.com/Product/Product.aspx?Item=N82E16820148086
Crucial ram is very high quality and is often supplied by Apple as standard.
There is a support article telling you how to install ram - it is a user installable part.
Cheers.

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Hi,
I am looking at some RAM modules with the following specs and I wonder if any of you could help explain/translate this:
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Message was edited by: macbig

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Hi all,
A PC user is selling his RAM but all he can tell me about it is:
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m47ol6524cu0-cb3 0534"
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More info here:
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4 =x16
C =4th Generation
U =TSOP2-400 (Lead-Free)
0 =None
C =Normal, Self Ref.
B3=[email protected]
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Howdy I've had my Dual G4 1.25 MDD for 2 years and love it. I got it with 1GB RAM, thinking I was set. For Christmas I wanted to Upgrade the RAM to 2GB. from My PowerMac G4 Manual I knew I needed 2x 512MB PC2700 DDR333 CL2.5 SDRAM DIMM's.
I went to DealRam (part of DealMac) and found 18004memory.com The price seemed great $39 per stick. I ordered it and within a week got 2x 512MB DIMM's. Problem was it was the Wrong RAM spec. I tried that RAM in my Mac 30 different ways and Everytime the computer either wouldn't boot, or it would suffer Kernel Protection Faults. One time it did boot up but the RAM only recognized as 2x 256MB DIMM's. I called the company, got an RMA and returned the RAM, this time they sent me 2 replacement DIMM's.... for a POWERBOOK, SO-DIMM's. I returned it again and finally Got from them the
2x 512MB PC2700 DDR333 CL2.5 SDRAM DIMM's. They call it Hyperspeed RAM. Anywho, I powered down let the system cool over night and in the morning, popped it open, put the RAM in the 2 open slots DIMM2/J23 & DIMM3/J20. closed it back up and powered up. Everything was snappier, the boot was quicker and I checked About this Mac, it says 2GB. Apple System Profiler showed all 4 DIMM's and I thought everything was fine.
Computer ran great for hours, no issues. Everything seemed quicker. Computer went to sleep overnight, next day woke from sleep and Tried to use iTunes and during an extensive sort for Songs, the system Locked up. Nothing would work. Had to force restart. this time I tried to Run my favorite online Game, WoW and after it loaded and I started to play, within 5 mins the whole game locked up. The audio sound went into a sort of Loop, I couldnt force quit and had to force reboot. This happened several times. I finally decided to Run the Apple Hardware Test. The Quick test locked up after running 2mins. I let it sit for 1hr just in case it was still doing something and the progress bar and time never progressed. So i forced reboot, ran Test again this time as Extended test. at 8 min & 31 sec the test stopped and I got an Error Code, this time I wrote it down "2MEM/2/4: DIMM3/J20."
I guess that DIMM failed. I shutdown, popped open case, and removed DIMM3/J20 leaving the Original 1GB RAM and One of the 512MB Upgrades. I rstarted the Test again and Ran the Extended Test once more. It ran for 27mins & 24 secs and everything passed. So. 1.5GB is better than just 1GB. I powered down and powered back up to try and play WoW. Within 5 mins of loading game to play, everything locked up again.
So I took both of the new RAM out and left the Original 1GB RAM and ran Test everything was great no Errors. Rebooted, and went onto WoW again and was able to play for several hours. I quit game and shut down for night.
I have since Tried the 2x 512MB DIMM's in over 10 different variations in the computer with and without the original RAM and everytime I run a high end program or game (WoW, iTunes, and Photoshop), I get lock ups, crashes, and other screen weirdness.
I dont want to have to Return the Memory again. I am already out over $15 from s/h with RMA's.
PLEASE Any ideas what to do?
1 thing I noticed the RAM gets very very hot, when I've powered down tand removed the new RAM. I wonder if there is a cooling issue?
Anytime I put the Original 1GB RAM in, I dont have problems!

Hi lz3broc,
Sounds very much like faulty RAM to me, I'm afraid. I'm not sure about the temperature it's running at, but if the surrounding DIMMs aren't having a problem then I would definitely point the finger at those new memory sticks not being up to scratch.
If you were convinced it was temperature related then you could always try putting heat spreaders on the memory to help with cooling, but as these stick (semi-permanently) to the RAM then you would never be able to return them.
My personal opinion is that you should send the RAM back and buy two new DIMMs from Crucial Technology. I only ever buy RAM made by them and I've never had a problem with it - it's the same stuff Apple themselves generally use and works a charm every time. Probably not the news you wanted to hear, but that's probably the only way you're going to get a stable machine with 2GB RAM.
Hope that helps,
Andy.
PowerMac G4 Dual 1.50GHz Mac OS X (10.4.4) Liquid Cooled

Mixing RAM from different manufacturer's?

Hi
i currently have 2.5 gig of ram that was installed by apple, and i am looking to add matched pair of 1 GB to give me 2 more gig of ram, and 4.5 total
can i mix my standard ram with samsung ram? i dont want to buy and have it not work, also there is same ram on the site with slightly different specs for less, a, i better off going with that?
thanks in advance!
http://eshop.macsales.com/item/Samsung/3200DDRSAM2P/

Hi, and a Warm Welcome to the Power Mac G5 Forum!
Well - the G5 RAM specs are here
http://docs.info.apple.com/article.html?artnum=86414
Some of the Apple Original G5 RAM was Samsung, apparently.
You will not go far wrong purchasing RAM from OWC with their "Lifetime Advance Replacement Warranty"...
Personally I have never had a problem with Crucial
http://crucial.com/store/mpartspecs.aspx?mtbpoid=1D1DFB01A5CA7304
who have a similar guarantee. And the parent company of Crucial - Micron - were also suppliers of Apple Original G5 RAM, apparently. Good Luck.

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