Snow Leopard 64-Bit

[w00t951]

I have the 13" Macbook Pro 5,5. I want to boot into Snow Leopard so I can address my 8GB of RAM, but I can never get it when I press 6 and 4 at the same time during the white screen. Is there a specific trick that you have to do? In Terminal, it says that my EFI is 64 bit.

 

[alphaod]

You only need the 64-bit to access more than 32GB of RAM, so you are fine.

 

[macuserx86]

OS X can address the 8GB even in 32 bit mode. That said, the 64 bit kernel is a bit faster on my Mac Pro (haven't tested it on any other machine).

read this article and see if it helps.

edit: I guess it's disabled on the 13" That sucks.

 

[MikhailT]

I have the 13" Macbook Pro 5,5. I want to boot into Snow Leopard so I can address my 8GB of RAM, but I can never get it when I press 6 and 4 at the same time during the white screen. Is there a specific trick that you have to do? In Terminal, it says that my EFI is 64 bit.

Use this system prefs pane, it works for me on 10.6.3.

http://www.thrull.com/corner/mac/SystemModeConfigurator/

 

[w00t951]

Awwwwwww Wahhhhh

 

[MikhailT]

Awwwwwww Wahhhhh

What are you whining about? Just use the app I linked and it'll work.

 

[CaptainChunk]

The lack of a 64-bit kernel won't prevent your machine from addressing 8GB of RAM. My Mac Pro in my editing rig is still on OS 10.5 (32-bit kernel only) mostly for hardware compatibility reasons and it still addresses all my RAM and even uses the majority of it in some situations.

The main reason why Macs ship with the 64-bit kernel disabled by default is for driver compatibility. Not all drivers have 64-bit extensions. The article referenced earlier in this thread does a pretty good job of explaining the pros and cons of booting into the 64-bit kernel.

 

[dude2010]

Photoshop CS4 and Lightroom 3 beta2 that is a 64bit app - runs a LOT smoother, fluent and faster with my 2yrs old MBP running newst snow, 4gb ram... Nice!
AND I had a mouse/keyboard freeze problem, running first half hour with no lockup...
Thanks a lot homie!!

 

[piwi]

Mine is much slower to boot in 64bit and Xbench reports lower results, that's odd...

9600M GT 32 vs 64bit (click to enlarge)


9400M 32 vs 64bit (click to enlarge)

 

[henry72]

http://www.ahatfullofsky.comuv.com/English/Programs/SMS/SMS.html

This app will help~ Is actually a bit faster

 

[dude2010]

http://www.ahatfullofsky.comuv.com/English/Programs/SMS/SMS.html

This app will help~ Is actually a bit faster

-A bit faster then the first added app http://www.thrull.com/corner/mac/SystemModeConfigurator/ or what? Or better in any way?

My MBP really runs nice after the thrull install!