Snow Leopard 10.6.3 (retail disc) is too old for modern software. You need 10.6.8 for the App Store and stability.
Now that you are on the desktop, you need to install drivers (Kexts) and a bootloader so you don't need the iBoot CD anymore.
You need a way to boot the installer DVD on non-Apple hardware. multibeast snow leopard
Snow Leopard is now obsolete, and MultiBeast has evolved through versions for Lion, Mountain Lion, Mavericks, and eventually High Sierra. But for vintage computing enthusiasts, retro-bloggers, or anyone reviving a Core 2 Duo or first-gen Core i-series PC, the remains a fascinating relic.
This is a comprehensive guide to installing OS X Snow Leopard (10.6) on a modern PC using the and iBoot method from tonymacx86. Snow Leopard 10
Note: For security and stability, running legacy operating systems like Snow Leopard is not recommended on internet-connected production machines. Always use supported software for daily computing.
The Snow Leopard-era version of MultiBeast (notably versions 2.x and 3.x) included: You need a way to boot the installer
Using Multibeast to install Snow Leopard on a Hackintosh offers several benefits: