Your Mac requires a firmware (Boot ROM version in System Profiler) update. Mac OS X: Available firmware updates http://docs.info.apple.com/article.html?artnum=86117 When an update is required, the update must be installed (using OS 9) BEFORE you install OS X.

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STEP 2: INSTALL MAC OS X In order to boot the Mac OS X Retail DVD, you'll need to download and burn iBoot. For desktops and laptops using unsupported Intel CPUs and graphics, a legacy version of iBoot can be downloaded here. If you have an Ivy Bridge or Haswell system, you can’t use the default iBoot. Use iBoot Ivy Bridge or iBoot Haswell. Hi, ILatu, I'm sorry that I'm replying 3 years after you posted this, but I just found this topic and thought I could help. Here are download links for Mac OS X 10.0, 10.1, and 10.2.

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Don't install an OS lower than Panther OS 10.3.

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If you do a Google search for *M9227LL/A* (Panther 10.3 retail install CDs) or *M9228LL/A* (Family Pack), you may find a set. The install discs should look like this:

After you install the base 10.3.x, update to the final Panther version 10.3.9. See Mac OS X 10.3.9 Update (Combo) http://support.apple.com/kb/HT2464

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Panther Browsers & Updates

 Cheers, Tom 😉