i have one of these: when i plug in an external esata drive, nothing happens until i have device manager scan for new hardware i have an esata pcie 1x card that works great. allows me to plug an unplug just like a usb drive. however if i have a drive plugged in and powered on, my computer hangs on boot. i cant track down what to change on the bios to stop this i was just wondering what the deal with this adapter was. shouldn't it allow me to swap? or is my sata port incorrectly setup ...or is this to be used in the way that i'm currently using it?