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Wow, this is really a good news! Thank you so much for sharing this !!!
One more thing, the VirtualBox RAM configuration you are using is 1GB+0.5GB+0.5GB+24MB+1GB, which is less than 4GB, can you configure one of them to 3GB and have a try? This would make sense.

Yes, I can have more than 4GB of RAM assigned across all totality of the VMs. Of course VirtualBox fires up an individual process for each guest that runs, so that's not surprising.
 
Which 4 GB RAM module manufacturer is compatible?

To those of you who have succeeded in upgrading your system RAM to 6 or even 8 GB: Can you please tell me what make your 4 GB sticks are? I've purchased one from OWC which is a Hynix but it doesn't seem to work. The official NVidia 9400M RAM compatibility list only includes one 4 GB RAM model, namely from Micron (Crucial), so I thought that might be the cause. On the other hand, if you pick up a 4 GB stick at the Apple Store (I just checked) they'll provide you with a Hynix module as well.
Someone reported success with this ID number: 0x029E, but I couldn't find out who the manufacturer is.
Thanks!
 
To those of you who have succeeded in upgrading your system RAM to 6 or even 8 GB: Can you please tell me what make your 4 GB sticks are? I've purchased one from OWC which is a Hynix but it doesn't seem to work. The official NVidia 9400M RAM compatibility list only includes one 4 GB RAM model, namely from Micron (Crucial), so I thought that might be the cause. On the other hand, if you pick up a 4 GB stick at the Apple Store (I just checked) they'll provide you with a Hynix module as well.
Someone reported success with this ID number: 0x029E, but I couldn't find out who the manufacturer is.
Thanks!

I purchased direct from Crucial in the UK.
System profiler says that it is:
BANK 0/DIMM1:

Size: 4 GB
Type: DDR3
Speed: 1067 MHz
Status: OK
Manufacturer: 0x802C
Part Number: 0x31364A5353353132363448592D3147314131
Serial Number: 0xEA2709E1

Crucial describe it as:

(CT51264BC1067)
4GB 204-PIN SODIMM 512Mx64 DDR3 PC3-8500 CL7
 
Thanks fm2503!

Which MacBook Pro do you have? I assume you've got 6 GB installed and are using Snow Leopard in 64-bit kernel mode?

Salut
 
Trouble running 8G on new MacBook Pro

I recently purchased a MacBook Pro 15" 3.06Ghz (mid 2009 running SL) and decided to upgrade memory from the 4G it came with to 8G. After upgrading the system has kernel crashes, after running for a few minutes. I have done all the standard troubleshooting and find that the 4G modules work by themselves but not together. I also see (from Crucial and other forums) that I am not alone. Before I blame Crucial for my woes, has anyone here run the mid 2009 MacBook Pro with 8G? Could it be that I also run a Samsung SSD?

Thanks,
John C.
 
I recently purchased a MacBook Pro 15" 3.06Ghz (mid 2009 running SL) and decided to upgrade memory from the 4G it came with to 8G. After upgrading the system has kernel crashes, after running for a few minutes. I have done all the standard troubleshooting and find that the 4G modules work by themselves but not together. I also see (from Crucial and other forums) that I am not alone. Before I blame Crucial for my woes, has anyone here run the mid 2009 MacBook Pro with 8G? Could it be that I also run a Samsung SSD?

Thanks,
John C.

sounds like your computer doesnt like the 8GB, which is odd because that computer is meant to support it.

the SSD would have NO effect on anything
 
MBP4,1 6GB problems SL -> single-channel ?

Hello everyone

I have a macbook pro 4.1 (early 2008) 2.5Ghz and I was thinking to buy new 6GB ram memory from crucial (CT51264AC667 and CT25664AC667).
It seems to be (hardware technical) possible for Leopard but there are a lot off kernel panics with Snow Leopard.
Before buying this upgrade I want to be sure whether the problem with SL could be solved in the future.
Could it be that SL has some problems just with handling single-channel? (It seems to be that apple only sells computers or ram upgrades that perfectly uses dual- or quad channel)
Did anybody yet tried to install an other unix based 64 bit operating system (clean install) and after that tried to use the full amount of 6GB ram (single channel)?
For example a clean install of Ubuntu (64bit) or even better freeBSD (64bit).
If those other OS work perfectly, then it only seems to be a SL bug.
Then it's only a matter off time. Waiting for apple wanting to solve this problem. Or waiting for somebody with enough knowledge off unix programing, to want to make us some hack.
Or am I totaly wrong?
Did anybody tried this, or does anybody want to try ?
 
This thread is wayyyyy to big. Should I get 2 2GB sticks or 1 4GB sticks for my Macbook Pro 13"?


Also, where is the best place to grab one?
Thanks I hope I'm not asking the same question 2x
 
Hello everyone

I have a macbook pro 4.1 (early 2008) 2.5Ghz and I was thinking to buy new 6GB ram memory from crucial (CT51264AC667 and CT25664AC667).
It seems to be (hardware technical) possible for Leopard but there are a lot off kernel panics with Snow Leopard.
Before buying this upgrade I want to be sure whether the problem with SL could be solved in the future.
Could it be that SL has some problems just with handling single-channel? (It seems to be that apple only sells computers or ram upgrades that perfectly uses dual- or quad channel)
Did anybody yet tried to install an other unix based 64 bit operating system (clean install) and after that tried to use the full amount of 6GB ram (single channel)?
For example a clean install of Ubuntu (64bit) or even better freeBSD (64bit).
If those other OS work perfectly, then it only seems to be a SL bug.
Then it's only a matter off time. Waiting for apple wanting to solve this problem. Or waiting for somebody with enough knowledge off unix programing, to want to make us some hack.
Or am I totaly wrong?
Did anybody tried this, or does anybody want to try ?

I have a MBP4,1 with SL and 6gb, and it works perfectly. The only kernel panics I have had are caused by my eSATA expresscard.

I guess they could be related--if the eSATA card is getting memory outside the expected 4gb 32 bit address space, it might not work right. Maybe the driver is 32-bit only or something, but I'm using the built-in driver.

Oh, I also had a few KPs due to the sudden motion sensor, but I can't remember if that was with SL or L. I doubt that is related to the extra RAM, though.

I've been running 6gb for probably close to a year now with very few problems overall. I got my 4gb stick from OWC, but I don't know who the manufacturer is.
 
Macbook pro 4,1 wont boot with 8gb ram installed

I have a macbook pro 4,1 17inch 2.6ghz and i installed 8gb ram and it wont boot but with 6gb it boots just fine, anyone else with the same mac run 8gb fine?
 
i'm about to buy a mac and i want to upgrade it obviously but i wondered since macbook pro 15" supports 8 gb (seen in various threads) if i can use any 4GB memory cores from any brand, how do i know which ones are compatible and which ones aren't?
 
i'm about to buy a mac and i want to upgrade it obviously but i wondered since macbook pro 15" supports 8 gb (seen in various threads) if i can use any 4GB memory cores from any brand, how do i know which ones are compatible and which ones aren't?

most brands will be compatible. if it isnt compatible then you have bought a cheap crappy brand. just stick to the general ones like kingston, corsair, g.skill etc and you will be fine.
 
Any one running 8Gb on a Late 2008 MBP (MacBookPro5,1) 2,53Mhz?

Adicional info:

Code:
  Modelo:	                        MacBook Pro
  Identificador de modelo:	MacBookPro5,1
  Nome do processador:	Intel Core 2 Duo
  Velocidade do processador:	2,53 GHz
  Número de processadores:	1
  Número total de núcleos:	2
  Cache L2:                 	6 MB
  Memória:                  	4 GB
  Velocidade do BUS:	        1,07 GHz
  Versão da ROM de arranque:	MBP51.0074.B01
  Versão de SMC (sistema):	        1.33f8
 
most brands will be compatible. if it isnt compatible then you have bought a cheap crappy brand. just stick to the general ones like kingston, corsair, g.skill etc and you will be fine.

thanks a lot:)
 
Hasn't this become obvious to you all by now that 2008 MacBook (Pro) will never support 8 GB RAM. Obviously Apple figured it out and switched something on logic board with 2.66 GHz MBP high-end spec bump in Early 2009 which was after the 17" Early MBP officially supported 8 GB.

It just seems obvious to me that Apple had a problem there. All the people hopeful that Snow Leopard would fix because it wasn't addressing memory properly weren't thinking of 8 GB in 17" MBP or 32 GB in Mac Pro long before that easily addressing much greater amounts of RAM.

It has just seen obvious to me for a long time that either Apple dropped the ball with something on the logic board OR Apple doesn't want to support 8 GB and intentionally did something to limit hardware. Nobody, to my knowledge, has ever successfully had another OS running 8 GB on a Late 2008 MBP 2.4/2.53.

Perhaps Apple did it to force upgrades to new MBPs from those wanting 8 GB of RAM. Definitely not out of character... and I guess that would be your only hope that your Late 2008 15" MBP 2.4/2.53 would ever even unofficially allow 8 GB of RAM. One day, three years down the road when most have been passed on to kids or donated away... the 8 GB RAM Late 2008 Firmware update arrives in software update(firmware update) as an unnoticed and not even frontpage MR worthy news... all in time... all in time.
 
Hasn't this become obvious to you all by now that 2008 MacBook (Pro) will never support 8 GB RAM. Obviously Apple figured it out and switched something on logic board with 2.66 GHz MBP high-end spec bump in Early 2009 which was after the 17" Early MBP officially supported 8 GB.

It just seems obvious to me that Apple had a problem there. All the people hopeful that Snow Leopard would fix because it wasn't addressing memory properly weren't thinking of 8 GB in 17" MBP or 32 GB in Mac Pro long before that easily addressing much greater amounts of RAM.

It has just seen obvious to me for a long time that either Apple dropped the ball with something on the logic board OR Apple doesn't want to support 8 GB and intentionally did something to limit hardware. Nobody, to my knowledge, has ever successfully had another OS running 8 GB on a Late 2008 MBP 2.4/2.53.

Perhaps Apple did it to force upgrades to new MBPs from those wanting 8 GB of RAM. Definitely not out of character... and I guess that would be your only hope that your Late 2008 15" MBP 2.4/2.53 would ever even unofficially allow 8 GB of RAM. One day, three years down the road when most have been passed on to kids or donated away... the 8 GB RAM Late 2008 Firmware update arrives in software update(firmware update) as an unnoticed and not even frontpage MR worthy news... all in time... all in time.
If :apple: dropped the ball, now more than ever, we the Mac owners community must not drop the ball.
Make your official claim using apple feedback:
http://www.apple.com/feedback/macbookpro.html
 
I have a MBP4,1 with SL and 6gb, and it works perfectly. The only kernel panics I have had are caused by my eSATA expresscard.

I guess they could be related--if the eSATA card is getting memory outside the expected 4gb 32 bit address space, it might not work right. Maybe the driver is 32-bit only or something, but I'm using the built-in driver.

Oh, I also had a few KPs due to the sudden motion sensor, but I can't remember if that was with SL or L. I doubt that is related to the extra RAM, though.

I've been running 6gb for probably close to a year now with very few problems overall. I got my 4gb stick from OWC, but I don't know who the manufacturer is.


Ah, I think you've figured out my issue! I can't believe this didn't occur to me. Obviously the expresscard (specifically it's pci-e interface) is mapped to the memory's address space, which is why when I was running the 64-bit kernel I had perfect stability -- my pci-e expresscard SSD doesn't mount in 64-bit mode and thus I couldn't be pushed beyond 6GB of addressable space as was happening in 32-bit mode.

So to restate:

If you are running 6GB on a MBP that only officially supports 4GB, it looks like ExpressCard devices that connect to the PCI-e bus will address enough additional memory to push you beyond the 6GB barrier and into instability.

Thanks to m85476585 for helping me connect the dots. I'm curious if anyone has any evidence to undermine this theory.
 
Nobody, to my knowledge, has ever successfully had another OS running 8 GB on a Late 2008 MBP 2.4/2.53.

I thought the few people that could afford the 8 Gig of memory with these machines were running fine in 64bit mode.

From the FAQ:

What systems can use what amount of ram?
- Currently, these systems are confirmed:

Intel Xeon Mac Pro systems can use 16GB (Rev A) and 32GB (Rev B)
Mac Mini can use 3.25GB for Core 2 Duo models and 2GB for Core Duo models
Rev C or above Intel iMac systems can use 6GB.
[Update] Starting 2009 Models, all iMac can use 8GB
Rev D or above Polycarbonate (Plastic) MacBooks can use 6GB
Rev D or above MacBook Pro (15/17") can use 6GB
Unibody MacBooks can use 6GB
[Update] Late 2008, Unibody MacBook Pro 15" 2.53GHz or Higher and Mid 2009, All Unibody MacBook Pro 15" can use 8GB
Unibody MacBook Pro 17" can use 8GB
MacBook Air Rev A or Rev B can use 2GB (soldered)


I know this thread is fairly large -and correct me if I'm wrong- but I thought 2008 MBPs -especially the late UB ones- were running 8 Gig fine in 64bit mode?

Now, what I would like to test would be a Late 2008 MBP UB running 8 GB fine in 64bit mode boot into Windows Vista 64bit, Windows 7 64bit , or Linux 64bit and run some tests to see if the memory runs fine there as well.


-P
 
I upgraded to 8 Gig of Ram

I just wanted to pass along that I upgraded to 8 Gig of Ram in my MBP (5,3) and I would never go back to 4gb. I do lots of VMs and the whole system just flies.

Honest, I think its the best investment I've put in.

If you have questions feel free to ask!

-P
 
I know this thread is fairly large -and correct me if I'm wrong- but I thought 2008 MBPs -especially the late UB ones- were running 8 Gig fine in 64bit mode?

Now, what I would like to test would be a Late 2008 MBP UB running 8 GB fine in 64bit mode boot into Windows Vista 64bit, Windows 7 64bit , or Linux 64bit and run some tests to see if the memory runs fine there as well.


-P

No one has tested the 2.4GHz model... I only know of the 2.53GHz or 2.66GHz models capable of 8GB.
 
I read all 25 pages and still no answer!! is it really that hard!?

to sum it all up!! is the 2.53 macbook pro 5.1 capable of handling 8gb of ram? yes or no?
 
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