I've just built another PC for someone and have noticed high readings from the PSU's +12V rail... It's always bouncing between 12.48v, 12.54v and 12.61v! Does this seem a bit high and can it cause lock ups and hardware failure? The PSU is a new 550W XFX Core Edition Pro (a re-badged Seasonic unit i believe).
I hope this is not going to be a major issue!