Changes to Step #20

Edit by David Hodson

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[* black] So here's a bonus for all of you who made it this far: the A5X cover removed.
[* black] Underneath the cover we find a piece of silicon, but not the processor itself. This is probably a spacer that helps conduct the heat away from the A5X die.
[* black] It's a safe bet that the A5X cover is a heat sink for the CPU, given there's thermal paste underneath and a thermal pad on top of the cover.
[* black] Like the A5, the A5X system features a 1 GHz dual-core CPU. The upgrade that earns it an 'X' is the new GPU, which Apple ''[|claims]'' outperforms even Nvidia's Tegra 3 processor.