OPUS 150 power to caputer no boot
I have had my OPus 150 in my carputer for about a year now with no major problem
Fic Icecube P4 mobo
40 gb 5200 rpm 3.5 hd
panasonic 7inch touchscreen wired to psu
no floppy usb dvd drive
today dove about 2 miles to get gas before going to work, turned of my car, carputer goes into standby as always. get back into my car nothing comes up. screen is on adn opus power supply fan running as is cpu fan , but no boot. Unplugged opus to reset but same result. pulled carputer out plugged in standard 150 watt atx power supply and booted with out problem. have checked all the grounds and connections and cannot find a thing wrong. my 12 volt comes in at a constant 11.97 is this too little? any suggestions?
Thanks a bunch