Uploaded February 2025 | Updated September 2026, 2 weeks ago

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This is a follow-up to the ABIT BE6 II motherboard which I recently found at the scrapyard. Unfortunately, the keyboard doesn't work reliably. Today, we are going to look for clues why the keyboard seems to restart randomly.

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▬▬▬▬ *Timestamps* ▬▬▬▬▬▬▬▬▬▬▬▬▬▬
00:00 The keyboard issue
00:54 Looking at some chips
04:01 PS/2 keyboard connector
04:50 Tracing ground and power
06:26 Checking clock and data signal
10:36 Tracing clock and data signal
12:38 Winbond chip reflow
18:52 Winbond's little brother
24:37 Looking for clues
27:04 The loose connection
27:38 Behind the keyboard connector
36:34 Another problem
37:50 The final test
38:29 Recap