I'm at work, and I needed to copy about 4 gigs of files off another computer on the network, and wireless wouldn't cut it, so I plugged my PowerBook into an ethernet jack to copy the files. While I was copying files, there was an obnoxious buzzing noise coming from my laptop. It wasn't loud, it was just annoying. It would start the second I started the transfer, and end the second files were done copying. I then remembered that since we have VoIP phones, our ethernet jacks here have Power Over Ethernet. I'm no electrician, but could the buzzing noise have been from the increased current or voltage from PoE adding noise and interfering with something, or should I be expecting to send my LemonBook to Apple again for the 4th time in the not too distant future?
BTW, it's not the hard drive. I tried duplicating a 900 meg file to get some hard drive activity going, and the only noise was the quiet, normal hard drive noise.
BTW, it's not the hard drive. I tried duplicating a 900 meg file to get some hard drive activity going, and the only noise was the quiet, normal hard drive noise.