in my enermax 1000w manual it says :
so i'm not sure what the problem is.
also what do you think 'signal abnormal' refers too, as the manual may have been written by an english speaking taiwanese person.
well i tried to do a process of elimination by gradually unplugging and then turning on,
i'm down to the bare bones now, no case fans, USBs L.E.Ds, etc (which I suspected i may have short curcuited, though they worked
just the cpu(+fan) , mobo, primary HD, 1 x VGA card, sound card
but the PSU still beeps twice in startup,
but it doesn't always beep twice, about 2 in 10 times it starts fine