Unstable after RAM upgrade

I tried OWC 4GB kit and it locked up 3 times in two days. I called the Apple Store that I bought the laptop from and they said since it was within the 14 days of purchase, I could get the "upgrade" price of $150. So I take my 1/2 an hour to drive down there and the "specialist" tells me I have to pay the full $300!! Those of you who were able to bring your computer back and get new memory are lucky because my Apple Store wouldn't do it? Anyone know how to complain about the retail stores?

I got some RamJet memory and it's been working fine since I installed it 3 days ago. Lot cheaper than Apple memory too!

I too bought the Patriot ram @ FRY's... After months of thinking I had bought a lemon, I found 3mb worked fine. I just didn't like the uneven ram in the macbook and decided to try once again... I ordered the RAMJET memory 2x2gb for a crazy low 68$ and $6 shipping. And have been up without ANY freezing for 2 weeks now! What I noticed was the Patriot ram had said it was 1066Mhz DDR3... on my about my mac info screen, located by clicking the apple on the top left of the macbook. When I installed my new RAMJET sticks, the memory was reading 1067 MHz DDR3. could this be the issue? The stock kit is 2gb @ 1067Mhz.

I have noticed a little warmer running conditions, but well worth the extra speedy performance, with 4gb.


Could this freezing issue be this easy? could the hours I have spent on the phone with mac tech's been this much of a waste? Just find RAM with a true 1067 MHz or drop the 68$ for the RAMJET sticks? I personally thought this was a mac issue with a firmware update.... but it seems the DDR3 format is that new and the new alum macbooks crave the 1067MHz chipset....

I have now had my motherboard (logic as they call it) replaces, and I bought apple memory instead of 3rd party memory. It's been fine for the last few days until a couple of minutes ago when it froze AGAIN!

I'm starting to get very ****** off right now

I have now had my motherboard (logic as they call it) replaced, and I bought apple memory instead of 3rd party memory. It's been fine for the last few days until a couple of minutes ago when it froze AGAIN!

I'm starting to get very ****** off right now

I've experienced exactly the same thing with Corsair memory.

You know, I'm wondering... that geForce 9400M. You know, the integrated one that uses that 4GB of RAM... do you get any instability when using the discrete 9600M which has dedicated memory? I can't test this, as I've already taken my RAM back.

But I'm wondering... if the geForce 9400M is very fussy with its RAM, or has issues above 4GB. Or, if it's related to the "bad bumps". Hmm...

I don't know specifically. They gave me a brand new machine with Apple supplied RAM and all has been fine for me personally.

I'm also on the MB so only the 9400M. Though I believe by looking at the MBP forums the people had the RAM issue with the 9600 also. I believe it is the chipset itself and not the integrated GPU.

I received my brand new Macbook 2 weeks ago. Couple of days there after I installed Kingston 2x2gb upgrade kit especially for Mac.

Then the crashing started. Couple of times a day.

I removed 1 of the memory banks and replaced it with one of the original 1 gb memory. So now I am running on 3 gb. Stable no crashes any more.

I think I will call Apple support. But I think I know the answer already.

Apple please do something about this.

Conrad

I'm sorry to hear about your RAM issues. After talking to Apple you should RMA the RAM before the grace period is up.

This sounds too simple, but it worked. I upgraded to 4gb of ram bought from a non apple dealer and was experiencing the same lines across the screen crash on a daily basis. I finally took the chips out and put them in opposite slots and have been running crash free for a month, even with 3.5 of the 4 in use. Hope this helps

Just an FYI that the Crucial 4-gig kit has worked flawlessly for me, and cost less than $90 at the time I bought it.

I checked the ram you bought vs. the macbook spec. I think the problem is yours is 204 pin and the macbook needs 200 pin. I got a 4 gig set of kingston for $198 that works just fine. Hope this helps

No. They got the right RAM for the Unibody MB. The White MB uses 200-pin DDR2 RAM while the Alum MB uses 204-pin DDR3 RAM.

It is not 200-pin. It is 204-pin. Where did you buy a 4GB set for $198? That's grossly overpriced. I hope you bought the correct RAM.

For example, this [Crucial RAM|http://www.newegg.com/Product/Product.aspx?Item=N82E16820148191] from Newegg is $52.99.

The price was actually low when I bought the memory back in december, but that doesn't matter now. Here are the specs from the late 2008 unibody macbook manual
Double Data Rate Small Outline Dual Inline Memory Module (DDR3) format
1.25 inch (3.18 cm)
1 GB or 2 GB
*200-pin*
PC3-8500 DDR3 1066 MHz Type RAM

I recently got a refurb Macbook 2.0 and upgraded to the Crucial 4GB Kit (two 2GB DIMMS) from new egg.

http://www.newegg.com/Product/Product.aspx?Item=N82E16820148191

Have been running solid as a rock now for over 5 days with no crashes whatsoever.
Very stable and the price was right! I have always trusted Crucial RAM in all my PCs.

Hope this helps!