Scanner Kills Computer
August 7, 2007 6:26 AM Subscribe
My scanner fried my motherboard, was this to be expected? Can it be prevented? Do I assume the scanner is dead too?
posted by chrisbucks to computers & internet (5 answers total)
I have a Canon ColorPage scanner, which is USB1, and has it's own power supply. On the weekend I started up my computer to scan some photos and realised that the scanner wasn't plugged in, so after windows had booted I went to plug the scanner in, upon the USB plug contacts touching the socket (or may have even been the case) the whole computer turned off.
Now it wont turn on. I tested PSU and MB separately and have concluded that the motherboard has been fried (and probably the RAM and CPU as well). They were all out of warranty, so I've resigned to ordering new parts (I'm currently praying that the HDDs are fine!)
Now, will my new computer be at the same potential fate? And what might have caused this? The scanner was plugged into a different wall socket than the computer PSU was, and had been plugged in for several days, previously upon plugging in the scanner the whole computer would suddenly reboot,. This occured once or twice before but I had always assumed it was a driver conflict, or a 'feature' that came free with Windows.
I'm using a Thermaltake Armor case, if that's of any relevance, and it was the front side USB socket.
If the scanner is to blame in this case, then would putting a USB hub between the computer and scanner mitigate the damage? Or should I write the scanner off as a deathtrap?
I was berated by my IT consultant father for not plugging it in before turning the computer on, and that, apparently that's the cause. But I have doubts about this... doesn't sound like normal behaviour...