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A project log for 68040 upgrade for Powerbook 520c

Unsoldering and resoldering a 180-pin QFP! Thrills! Excitement! A full 68040 in a Powerbook 520c!

hackadayhackaday 03/14/2016 at 02:281 Comment

I don't know what's going on here. MacBench says no FPU. Whatever. I give up.

It was however good practice for soldering QFP parts. Also, the Wolfvision viewer is very helpful. I only resorted to the loupe for final inspection of solder joints.

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esot.eric wrote 03/14/2016 at 03:39 point

Very worthy attempt.

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