whyare you using an OPUS to power an ATX machine!???
My true ATX system draws 39Watts - your opus supplys 150!!! you dont need it!
Think youhave breen drawn into the "OPUS rules the world" mindstate - which ofcourse is fine if you have put a desktop computer with full size (not laptop) components in yor car....
Slot loading CD / DVD - less power drain
Mini / Laptop HDD - Less power drain.
see where this goes - ifyour using a Cupid 3677, like me, you will prob have bought these kinds of devices -
By the way i just bought a carnetix PSU : http://www.carnetix.com
this is the kind of thing youshould be using i think - or ITPS and Morex Vehicle Kit
i dont think you will do anydamageusing the OPUs but for godssakedontgo hacking things out of theinside of your case!!!! just leave it outside