WIKI POST, so feel free to edit and add as you need to. Links and commands are more than welcome. All right, this kind of thing keeps getting asked, so it might behoove us to place everything like this in one post to help. Items in parenthesis (these things) are what you can search for using your browser's search function for easy access. What can/will make your PowerPC Mac a faster Mac? CONTENTS: 1. General (GEN1) 2. Features and Eye Candy - LEOPARD ONLY (FEC1) 2. TenFourFox (TFF1) 3. Safari and Webkit browsers (SWB1) 4. Hardware upgrades (HAR1) 5. Others (OTR1) GENERAL (GEN1) Shadowkiller: This piece of abandonware will remove the drop shadows except from the menu bar. It does give a small speed boost. It's archived at the Internet Archive here: https://web.archive.org/web/20101205153817/http://www.unsanity.com/haxies/shadowkiller ONYX to customize OS for speed FEATURES AND EYE CANDY - LEOPARD ONLY (FEC1) Turn of translucent menu bar with the Desktop and Screen Saver or Secrets Pref Panes. Enable 2D dock: defaults write com.apple.dock no-glass -boolean YES Disable Dashboad: defaults write com.apple.dashboard mcx-disabled -boolean YES Enable QuartzGL (quartzgl leopard): sudo defaults write /Library/Preferences/com.apple.windowserver QuartzGLEnabled -boolean YES Disable BeamSync (beamsync leopard) - DON'T DO THIS IF USING A CRT DISPLAY (LIKE AN EMAC): sudo defaults write /Library/Preferences/com.apple.windowserver Compositor -dict deferredUpdates 0 TENFOURFOX (TFF1) Download TenFourFox Erik's TenFourFox tweak thread - It can certainly speed up your web experience SAFARI/WEBKIT (SWB1) 10.4 Tiger - use TenFourKit 10.5 Leopard - use Leopard-Webkit Linux-based distros - use Midori HARDWARE (HAR1) eBay search for G4 upgrades NOTE: This is a very rudimentary search. Your mileage may vary. It might not all be G4 processor upgrades. RAM depends on your model, look up your Mac at EveryMac to see how much and what type of RAM it uses. Storage drives Desktops SATA to IDE adapter, such as https://smile.amazon.com/dp/B003AG79GO/ Laptops Dual CF to IDE adapter, such as https://smile.amazon.com/dp/B0036DDXUM/ SD to CF adapter, such as https://smile.amazon.com/dp/B01F6UWL1O/ Dual uSD to CF adapter, such as https://smile.amazon.com/dp/B00XTUJFTK/ USB 2.0 (Use NEC chip for best OS support) Desktops, such as https://smile.amazon.com/dp/B00JOCE4G6/ Laptops, such as https://smile.amazon.com/dp/B0154XURGY/ OTHERS (OTR1) Use MiniTube with Linux for YouTube. Compiling it is the best idea as it gets updated frequently. Link: http://flavio.tordini.org/minitube Use lightweight desktop environments with Linux (MATE, LXDE and XFCE) Use CorePlayer Mobile under OS X for video playback. 720p works nicely on a 1GHz G4 and 360p works fine on a 400MHz G4. Look for it on Macintosh Garden. iCooked for PowerPC 750FX chips. For the last of the G3 iBooks, this can overclock your processor on the fly.