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== SE/30 Specific Issues: Simasimac == A common SE/30 issue is known as "Simasimac," where vertical stripes appear at startup, Itโs often due to leaking capacitors on the logic board causing circuit corrosion. The fix is to thoroughly clean the board, repair any corroded traces (especially around the ROM SIMM and GLU chips), and recap the board. No chime with vertical lines basically means the CPU never even verified the ROM โ so likely the ROM isnโt being read properly (dirty ROM SIMM contacts or damaged traces to it are common causes). [[File:Simasimac_issue.jpg|thumb|300px|"Simasimac" vertical stripes]]
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