Does Snow Leopard allow you to use 8GB in older MBPs?

LoneWolf121188

macrumors 6502a
Original poster
Jun 7, 2007
664
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Longmont, CO
I know you couldn't under Leopard, but I was wondering if someone had tried doing this since the release of Snow Leopard. I know the latest MBPs all support 8GB of RAM, so I was hoping Apple now is letting some of the older MBPs do the same thing.
 

LoneWolf121188

macrumors 6502a
Original poster
Jun 7, 2007
664
0
Longmont, CO
It's a limitation imposed by the EFI, not the hardware. All the chipsets used in the MBP since Santa Rosa (maybe even before...) support a max of 8GB.
 

LedCop

macrumors regular
Apr 7, 2008
249
0
There is one thread where a user has reported than running Snow Leopard in 64-bit kernel mode on his late 2008 Unibody MBP (2.53 GHz) has allowed him to use 8GBs of RAM without any problems.

Unfortunately, that hasn't been tested on the 2.4 GHz version or the classic MacBook Pros.
 

LoneWolf121188

macrumors 6502a
Original poster
Jun 7, 2007
664
0
Longmont, CO
There is one thread where a user has reported than running Snow Leopard in 64-bit kernel mode on his late 2008 Unibody MBP (2.53 GHz) has allowed him to use 8GBs of RAM without any problems.

Unfortunately, that hasn't been tested on the 2.4 GHz version or the classic MacBook Pros.
Really? Mind posting a link to the thread?
 

madog

macrumors 65816
Nov 25, 2004
1,274
1
Korova Milkbar
The almighty MacTracker knows all.

The only thing I can imagine is the lower limit imposed by Apple for the product (possibly because of cost, availability, firmware, etc.), versus the actual physical limitation of the hardware. Many times the two are different with Apple's initially being lower.
 
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