Below are some links to Apple's own DIY guides for installing upgrades into a range of Macintosh computers. No all upgrades in all Macs are covered since Apple only provides guides for upgrades they classify as user installable.

Guides are available for the following Macs:

Mac Pro

• Optical Drive Mac Pro 2007/2008
• Optical Drive Mac Pro 2009
• Hard Drive
• Graphics / PCIe Cards Mac Pro 2007/2008
• Graphics / PCIe Cards Mac Pro 2009
• Mac Pro 2007/2008 Memory Instructions
• Mac Pro 2009 Memory Instructions

PowerMac G5

• Hard drive
• Optical drive
• PCI Card

PowerMac G4 MDD

• Memory
• Hard Drive
• Optical Drive
• Airport Card

PowerMac G4 Quicksilver

• Hard Drive
• Optical Drive
• PRAM Battery
• Airport Card
• PCI Card

PowerMac G4 Digital Audio

• Memory
• Optical Drive
• Airport Card
• Hard Drive
• SCSI Card (procedure is the same for any PCI expansion card)
• PRAM Battery

PowerMac G4 AGP Graphics

• Memory
• Optical Drive
• Airport Card
• Hard Drive
• SCSI Card (procedure is the same for any PCI expansion card)
• PRAM Battery

MacBook (White/Black)

• Memory
• Hard Drive

MacBook Pro 13

• Memory
• Hard Drive

MacBook Pro 15

• Memory (Unibody)
• Memory (pre-Unibody)
• Hard Drive (page 38 onwards)

MacBook Pro 17

• Memory (Unibody)
• Memory (pre-Unibody)
• Hard Drive (UniBody)

Powerbook G4 Titanium

• Hard Drive
• Airport Card
• Memory

Powerbook G4 Aluminium 12"

• Airport Card
• Memory

Powerbook G4 Aluminium 15"

• Airport Card
• Memory

Powerbook G4 Aluminium 17"

• Memory

iBook G4 (not last generation)

• Airport Card
• Memory

iMac Intel (Aluminium)

• Memory (2 memory socket models)
• User guide - memory instructions chapter 3 (4 memory socket models)

iMac Intel (White)

• Memory

iMac G5 (No iSight)

• Memory
• Airport Card
• Hard Drive 17"
• Optical Drive 17"
• Hard Drive 20"
• Optical Drive 20"

iMac G4

• Memory
• Airport Card
• Airport Extreme Card

Emac G4

• Airport Card
• Airport ExtremeCard
• Memory
• Pram Battery

iMac G3 Slot Loading

• Memory

iMac G3 Tray Loading

• Memory