In my experience with wiping my PPC's and starting fresh, I've usually found myself struggling to get it optimized due to the lagginess of software. I wanted to create this thread as a go-to for getting your PPC off the ground then optimizing. Hopefully this could get pinned at the top so new users can click and get started fast. Now, let's get started! Get a Web Browser You'll need it if you're going to browse this thread or any other threads Here are a few of the best web browser choices. However, this thread has the complete list and tells the OS compatibility. TenFourFox HomePage: http://www.floodgap.com/software/tenfourfox/ (ALL SourceForge direct links to 5 seconds wait) -For G3 -For G4 7400 -For G4 7450 -For G5 Type "machine" in terminal, to figure out which G4 build to use. Later G4s will use 7450, earlier ones use 7400. For quickly getting TenFourFox going, I recommend BluHell & uMatrix then optimizing if you'd like. But it's been smooth for me with those two tweaks. @eyoungren 's amazing tweak thread Roccat HomePage: http://runecats.com/roccat-browser-for-mac/ -Download Leopard WebKit Homepage: https://sourceforge.net/projects/leopard-webkit/ -Download(SourceForge, 5 second download) Camino(Outdated, should be used for very light/unharmful browsing e.g. browsing databases) Homepage: http://caminobrowser.org -Download Page I listed the homepages so you could check them out after, I hate linking Roccat's direct download link, but I don't see Safari rendering that page nicely. TenFourFox is a download link to SourceForge which should be fine for the brief 5 seconds. Camino's page is lightweight so I listed that as well. 1. Choose an OS The last PowerPC Mac OS X is 10.5.8 Leopard. Snow Leopard 10.6+ will NOT run, that is Intel only. You can also run Linux distros, but we don't recommend that for new PPC users. You can check your Mac's version by clicking the in the top left and clicking "About This Mac", you're Mac's specifications(Ghz,Ram,version) will be listed, if troubleshooting a problem you'll likely need your specifications in a thread for users to help out. Here are your OS X choices: -10.5.8 - Better for software support and features as it's newer. Official requirement is 867MHZ G4 or faster, and 512MB of RAM. HOWEVER, it can be hacked to run on a slower Mac as long as it's a G4 and not a G3... but don't expect great performance! -10.4.11 - Faster and is the latest version for older Macs and all G3s. Official requirement is 300MHz G3 or faster with 256 MB of RAM and FireWire. LIKE LEOPARD, you can hack it to run on slightly slower machines, but, again, the performance won't be very good! -10.3.9 - Fast on G3s, but doesn't support a lot of software! This thread will tell you everything you need to know about Panther, including some good software that supports it. There won't be anything about Panther on this post, so go there if that's your choice. 2. Optimize Your OS THIS THREAD HAS EVERYTHING YOU NEED TO KNOW ABOUT MAKING YOUR MAC FASTER. BUT HERE ARE SOME QUICK TIPS. LEOPARD: Here are some quick links/tips for optimizing your Leopard install quickly! Hidden Settings Preference Pane Onyx 2.0.6 For Leopard Guide on optimizing Leopard by the PowerPC Archive Enable QuartzGL to improve speed by pasting this into Terminal: Code: sudo defaults write /Library/Preferences/com.apple.windowserver QuartzGLEnabled -boolean YES TIGER: Tiger will mostly run fine on any hardware, but of course there are some systems that need optimizing Onyx 1.8.4 For Tiger ShadowKiller ATIccelerator II(Overclock your ATI GPU, BE CAREFUL) 3. Optimize Hardware Quick links for optimizing your hardware! G4 Fan Control 0.6.1 (Guide, warning page may be heavy!) Hardware Monitor/Temperature Monitor(Never used this, please correct if it doesn't work) iStat Menu 3.19 Download(Strongly recommended you buy a license, avoid iStat Menu 2.0 because of memory leaks, thanks @LightBulbFun) 4. Get Some Software These websites have big collections of old versions of software for PowerPC! Macintosh Garden PowerPC Archive PowerPC Software Archive G5 Center Macintosh Repository PPC Store by SST PPCAppStore By Adrian Opera(10.6/10.5/10.4) 5. Get YouTube Working Here are some methods to get YouTube working on PowerPC! YouTube can run fine in WebKit if you use ClickToPlugin and/or ClickToFlash. Here are some scripts put together by @Dronecatcher that let you watch YouTube on 10.4 or 10.5, and even works on G3s to give you decent YouTube! SMtube, compiled for PowerPC by @Lastic, is an app where you can find videos and play them instantly. It requires some steps to get it working, but the guide by @Lastic is easy to follow! PPC Media Center is an easy app to watch many online videos. An easy guide to setup and use is included in the dmg! 6. Install the Xcode Developer Tools (if needed) So some apps may require Xcode developer tools such as Onyx for its processor features. Or if you just need to develop an app for 10.5/10.4 or even use the iOS SDK (iOS 4.3 max according to the wiki) To get Xcode, sign into Apple's developer site, accept/agree to terms, copy this link: https://developer.apple.com/download/more/ This will take you to the developer download center, type Xcode 3.2.6/5(Apple states 3.2.6 as "For Snow Leopard" but the wiki says otherwise, 3.2.5 should work fine) General Hardware Notes: PowerMac G4 models to look for are "AGP Graphics," "Gigabit Ethernet," or "Mirrored Drive Door." Those models take up to 2 GB of RAM and that makes a huge difference under OS X usage. If you can't find those for a G4, find a Digital Audio model. They tend to be cheaper and look like the Gigabit or AGP models. Unless you know what you're doing, DO NOT GET a liquid cooled G5. You can get any other PowerMac G5 without asking the forum's permission, so long as it is not liquid cooled in any way, shape, or form. iMac G3's and eMacs of all kinds look like old televisions. iMac G3's are underpowered for all but the most basic tasks. If you're looking for an eMac, make sure to grab a model with USB 2.0. iMac G4's look...well, they are distinct with a round thing at the bottom and a flat screen on top. The round thing has all the innards. The gem to look for is one with USB 2.0. iMac G5's have very weird capacitor issues and look like a flat screen TV. Unless you like to solder, these are best left alone. Mac mini G4's look similar to today's mini, but a bit bigger and with a huge power brick! These machines make good word processors, servers, or music machines, but are too underpowered to do good on the web! An FAQ in case your question isn't answered here: FAQ for PowerPC Macs Note: If you are adding to this thread, please keep in mind that user's that are new or just getting started will be using old software(most likely) to get to these pages. Links only! This is a database. Unless the information is needed like mentioning the TFF addons.