Hey there again. You should really only run one thread about same problem instead of creating another.
From my experience most rom’s require the same volts and such. Installing another, even blu-ray, should not affect your system any differently. Seems like you have a problem with power. Since you mention that you lose your keyboard and mouse, I can assume that your using USB. Try using older PS2 for your keyboard and mouse and you shouldn’t have that problem any longer.
If you feel that your new burner is giving you real problems, then take it back and get a new one and see if you still have same problem. If you do, then you need to check some other things. Perhaps your memory is dying. Need bigger power supply. Drivers ?
Perhaps if you list your specs on your computer someone could better help.