Many newer HD's have a jumper to set to the lower SATA speed.Ĭonsider the costs (RAM & HD), the time, and if your current system will suit your needs for a couple more years, before starting your project. Note: your systems HD SATA I/O is SATA I (1.5 Gb/s) make sure if you get a new drive it is able to run at this speed. You may think about upgrading the HD to a larger unit if you have 250 GB or smaller HD. Get an external HD to copy over all of your stuff as you will need to reformat your current HD (requires a different format type).Upgrade your EFI firmware follow this Apple TN EFI & SMC firmware updates for Intel-based Macs.But its best to use two 2 GB modules (matched pair) Vs a mix of one 1 GB and one 2 GB module. Upgrade the RAM to 4 GB Note: Not all of the RAM will be accessible to the OS (only 3 GB).You'll need to do a few things here to upgrade to Lion. Don't forget to upgrade your current apps as well here (if they are 32bit). Your system should be able to support the newer OS's (most of the Core 2 Duo systems are 64bit clean).
