I went to turn my computer on today and about half way through the boot up sequence it just shut off. I tried to trouble shoot it for a bit but i couldn't get it to work. So i decided to give it a thorough cleaning and try again. Well the same thing happend, halfway through the boot up it shut off. Well after a little more troubleshooting i decided to flip the switch in the back from 180 to 230. Well its working fine now. Is this a psu issue? Is it going to hurt the computer if i leave the switch at 230? Thanks for any help.