What are the user-upgradable parts of an Apple computer? (Updated with the latest Unibody Macbooks!)

It is common for anyone to think of upgrading his or her Mac, especially when certain situations like insufficient ram or disk space are getting common nowadays. Because the Mac is so tightly built and packed together, their upgrade potential is usually lower than that of PCs. However, Apple has designed the Macs in such a way to allow some quick and simple hardware upgrades that do not void the warranty.

The list is as follows:

Apple notebooks
iBook G4: RAM only. (DDR1 SO-DIMM)
– PowerBook G4: RAM only. (DDR1 SO-DIMM)
– Macbook: RAM (DDR2 667MHz SO-DIMM) and Hard disk (SATA)
– Macbook Pro: RAM only (DDR2 667MHz SO-DIMM).
– Macbook Air: None

(Unibody updates!)
– Macbook Unibody (Late 2008): RAM (DDR3 SO-DIMM) and Hard disk. (SATA)
– Macbook Pro Unibody (Late 2008): RAM (DDR3 SO-DIMM) and Hard disk. (SATA)

Apple Desktops
– iMac G4: RAM only. (DDR1 SO-DIMM)
– iMac G5: RAM only. (DDR1 DIMM for non iSight models, DDR2 DIMM for iSight models)
– PowerMac G5 (Dual-Core G5 and Single-Core G5): Ram (DDR1 DIMM for single-core G5s, DDR2 DIMM for dual-core G5s) and Hard disk (SATA II)
– iMac (Intel): RAM only (DDR2 SO-DIMM)
– iMac (Intel Aluminium): RAM only (DDR2 SO-DIMM)
– Mac Pro: RAM (FB DIMM), Hard disk (SATA II) and Optical Drive (IDE/PATA)
– Mac Mini: RAM (DDR2 SO-DIMM for Intel Mini, DDR1 DIMM for G4 Mini) only. (Note: opening the Mac Mini does not void the warranty but accidental damages like breaking the base’s clips will void the warranty immediately. Do so at your own risk.)

Note: DIMM refers to standard desktop-sized memory modules, while SO-DIMM refers to the small form factor memory modules used primarily in notebooks.

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