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1.8 EFI firmware update gives 8Gb possibility to MacbookPro 5.1 ?

salbito said:
Yea i don't think this would work for you because you have the 2.4. the reports of stability with 8gb on macbook pro's occurred on the 2.53ghz and up late 2008 MBP not the 2.4.
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That wouldn't make sense at all. They use exactly the same chipset and chipset revision.
 
Late 2008 Macbook Pro with Kingston DDR3 RAM

The thread where this was just discussed: - Sorry if this is against the rules. I am a new to this forum
http://discussions.apple.com/thread.jspa?threadID=2031746&start=45&tstart=0

Santos79: I know it dosent make sense but this wouldn't be the first time that apple has used different chipsets in the same line. Besides NVIDIA has stated before that the chipset of the 2.53ghz MBP does accept 8gb. Also someone from ifixit has tested 8gb on the late 2008, link to follow, and saw success but was unfortunately on leopard and not snow leopard. Had he been on snow leopard he could have booted into 64-bit mode which should fix instability issues as 32-bit can only accomodate for up to 4gb.

https://www.macrumors.com/2008/10/24/new-macbook-pro-does-not-support-8gb-ram-for-now/

My late 08 MBP has 8GB ram in it since yesterday.

Did the EFI update 1.8.

Before this setup was unstable to say the least.
After... and with more than 12 hours of stress-testing this setup, I've had NO problem whatsoever.

Seems that the EFI update changed a lot more interesting things than the DVD-noise at startup (wich is not fixed by the way !).

Guibert.
Click to expand...

They are Kingston kta-mb1066k2/8g.

In fact, they are meant to be installed in one of the MacMini's I use as a server.

But now... I suppose my boss will pay me a second set ?

The least he can do !
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salbito said:
Santos79: I know it dosent make sense but this wouldn't be the first time that apple has used different chipsets in the same line. Besides NVIDIA has stated before that the chipset of the 2.53ghz MBP does accept 8gb....
Click to expand...

Those quotes do not support that. Nowhere does NVidia say that just the 2.53Ghz MBP's support 8GB. That would be ludicrous. The speed of a CPU has nothing to do with the RAM support of the chipset.
IIRC Nvidia said that the 9400 chipset supports 8GB period. And it's a fact that all first generation unibody 15-inch MBPs (2.4, 2.53 and 2.8) are equipped with the same chipset and revision.
 
Early 2009 Unibody 5,1 - 2,93 GHz with 8GB --> proof

This is my first post on the forums, I have to give my feedback on this subject.
After reading all of these post regarding 8 GB on the MBP unibody I didn't know if my MBP would support it or not. Since I found a great deal on the 2 x Hynix 2 x 4 GB on the eBay for £251 - the same RAM as Apple sells for 800 dollars I had to try it out.
They came in this morning and I have been testing my MBP so far and trying to max out the memory.

Little more about my setup:
I am running the latest Leopard 10.6.2 and I did the 1.8 EFI update 2 days ago.
I have switched Leopard to run only in 64-bit and that is it.

Here are the screenshots:

First my system:
systemMBP.png


Memory usage:
memoryMBP.png
 
Well test it out thoroughly, it wasn't that the MBP couldn't see the memory but rather it caused stability issues.
 
L350, you've got the March revision 5,1 mbp. Your model shouldn't have any problems. It's the original unibodies that reportedly have problems.
 
Does anyone know if you get the same results as L350 for a late 2008 MBP? :confused:

FWIW. Apple now sells 8GB RAM on their site for the 15-inch 2.53Ghz MBP. This includes the late 2008 MBP 5,1 right?

f_1mc0kx31gynm_a5179cf.png
 
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