How to Boot a Macbook With a Clicking Noise

Plug in Macbook to a known good power supply and boot, holding the 'T' key until the Firewire symbol appears on screen.
Connect Macbook to another Firewire-enabled Mac with a 6- or 8-pin Firewire cable, depending on the Mac model. Visually, 6-pin Firewire ports look more rectangular than 8-pin ports.
Select yellow Macbook HD disk icon when it mounts and access user information by opening 'Macintosh HD', then opening the 'Users' folder. User information is contained in the folders therein.
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