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deyno1903

macrumors newbie
Original poster
Apr 2, 2011
12
0
Hi Guys,

I'm new to the Mac and would like to know if it will run in 64 bit mode?? I don't want to try and boot in 64 bitr mode incase I mess something up?? How do I check to see if it will and have the right drivers, etc?? Below is a shot of my system.

AboutThisMac.png
 
Short answer: Yes for any modern mac (Core 2 Duo, i3, i5, i7) - you don't need to do anything.

There might be confusion because it used to be that OSX was running a 32bit kernel by default on most machines -- might even still be the case. However, you can still run 64bit programs and use >32GB of ram with the 32bit kernel (unlike linux or windows). I know because my old hackintosh was using the 32bit kernel, but the system addressed 8GB and ran 64bit binaries just fine.

If you're doing a lot of big memory work though, I'd buy more RAM. I'm using 12GB in my rig, which allows me to have a 4GB virtual windows machine and plenty of other stuff open without issues.
 
Run Activity Monitor, choose All Processes in the top-right and look for kernel_task. If it says "Intel (64 bit)" in the Kind column then you're running in 64-bit. This is the default on new systems.
 
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