| Subject: | Re: A Technology Trivia puzzler. |
|---|---|
| From: | "oryoki2000" <> |
| Date: | Wed, 10 Jul 2002 06:51:56 -0000 |
My guess: Lightning strike to telephone pole sends voltage spike via phone lines, frying phone section of surge protectors with a snapping sound. Surge protectors shunt high voltage to ground. Your Mac had a second path to ground via the external SCSI HD. A ground loop is created, sending extra voltage along the SCSI bus and damaging the internal SCSI card. Voltage differential in multiple paths to ground confirmed later with VOM. --oryoki ________________________________________________________________________ ________________________________________________________________________ |
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