voltages are off on that 520w vantec??? sorry i can't answer your question, i havn't had the pleasure of being inside one of those babies yet. Did you test the output voltages with a multimeter? don't go looking for pots until your sure you need to make an adjustment. that's a pricey unit you got there. never trust the software readouts on your voltage levels, they aren't close enough to use when making adjustments. i'd hate to see that lovely psu fried :S. good luck!!