Apple Mac Instruction Manuals (Mac User Guides): EveryMac One-click access to Apple Macintosh instruction manuals (also called User Guides) for all G3 and later Macs, including current models, in PDF format. (PDF) 1 Power Macintosh G4 867 (Quicksilver) Instruction Manual (PDF) 1 Power Macintosh G4 800 DP (Quicksilver) Instruction Manual (PDF)