The three generations shipping in 2007 top out at OS X 10.7.5. All MacBook generations after the original MacBook1,1 Core Duo 1.83-2GHz one will run OS X 10.7 (the original MacBook will only run 10.6.8). So you can run a newer OS just not the latest depending on what you currently have.Īpple removed all of the 32-bit OS code in Mountain Lion which is why you can't run it. Find many great new & used options and get the best deals for Apple MacBook 13' A1181 White 2.0GHz 160GB HDD 2. Hi Mayer, Here is an excerpt of an answer to a similar question which I believe answers yours. I would like to upgrade to Mountain Lion but if I had read it. Currently it is set up to bootcamp from Snow Leopard to Windows Vista (I know crap but the only legal copy I had of Windows at the time). I have a white Macbook A1181 which I have upgraded the ram to 4gb and the HDD from 160gb to 320gb. Downloaded the iso image and proceeded to make a Mac OS X bootable USB on windows.

However, although it has a 64-bit processor, it has a 32-bit EFI and is not capable of booting into 64-bit mode. White Macbook A1181 + OS 10.8 + Bootcamp. If the machine can boot, boot it up and then click on the Apple menu at the top left and select 'about this Mac'. This system can run the last version of OS X 10.7 'Lion' if upgraded to at least 2 GB of RAM. There were many model A1181 White MacBooks. The Core 2 Duo models can in fact run Lion (10.7.x) sorry to say it can't run Mountain Lion.The older Core Duo's CPU is not 64-bit clean which is why they can't run Lion or Mountain Lion However, it cannot boot in 64-bit mode nor does it support 'OpenCL'. The MacBook 'Mid-2007 Core 2 Duo' series shares the same easy to upgrade case design as previous MacBook systems, and connectivity likewise includes AirPort Extreme (although the 'Mid-2007' models support 802.11n - as well as 802.11g - without a firmware update), Bluetooth 2.0+EDR, Gigabit Ethernet, a FireWire '400' port, two USB 2.

This system can run the last version of Mac OS X 10.6 'Snow Leopard'.

The Core Duo group can only run up to Snow Leopard:.

Verify your model going to EveryMac - Lookup plugging in the last three digits of your system. While Apple's TN imply this model won't run Lion or Mountain Lion there is in fact two versions of this model group the older Core Duo and the newer Core 2 Duo.

Macbook a1181 os support