Early 2008 - MacBook4,1
Compatible upgrades for: MB402LL/A, MB403LL/A, MB404LL/A - Early 2008 Macbook's (White/Black).
Standard RAM: 1 GB
Maximum RAM: 6 GB*
Details: 1 GB of RAM is installed as two 512 MB modules, no slots free.
*Apple officially supports a maximum of 4 GB of RAM but third-parties have been able to upgrade the system to 6 GB of RAM using one 2 GB and one 4 GB memory module.
RAM Slots: 2