At my first job there was a box of about 50 expensive 3com network cards which seemed odd, I asked what the deal was and they were faulty and the firm had been

At my first job there was a box of about 50 expensive 3com network cards which seemed odd, I asked what the deal was and they were faulty and the firm had been sent a bunch of replacements. I did some testing on them and it turned out they sent an interrupt signal on every IRQ regardless of what IRQ you configured in the setup utility which caused windows to lock up. I took them home and drilled through the traces to the unwanted IRQs on the ISA slot and gifted them out at lan parties.