OK, here's a little electronics mystery. I have an old (2000s) wall clock in my bedroom that I had to take apart just now because a battery leaked in it (dang Duracells....). The clock takes two AA ...

Announced as industry firsts, the Xena 50 dc/dc converters have a quarter-brick pinout in a true eighth-brick package - the converters measure exactly 50% smaller than industry-standard quarter-bricks ...

So you have tested everything from the motherboard to the floppy drive. Still having problems? Have you tried testing the power supply? This Daily Drill Down by Faithe Wempen gives you the scoop on ...