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Let's repair one of the best 486 mainboard - Octek Hippo 15
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The 12 Most Common Electronics Faults : How To Diagnose And Fix Them
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PC Archeology: Not just another normal IBM PC XT clone (Handwell PC-401)
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Amiga 4000 Repair Part 1: Recapping and RAM issues galore!
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Repair of a very broken Mac SE/30 motherboard
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