Tagan Easycon PSU help

[Hesky82]

Hi all,
I've just got my hands on a new Tagan Easycon TG580-U15 psu, I have a little problem connecting it up to my dfi ultra-d board.

these are the connections I'm not 100% sure about...



and this extra removable cable..



-Which 4pin 12v connection do i use? the "p4" or the "p4+" separate cable. I'm pretty sure the "E" connector makes up the 20 pin atx plug to a 24 pin power cable. and I assume the p8 connector is not used on my board.
-Also where do i fix the ground/rtn cable to? (chunky gauge black cable with a gold ring connector), the manuals non to clear.
Initially I though connecting it to the case chassis or not connecting it at all as the psu would be grounded anyway. but the manual has made me a little unsure.
thanks for any help with these

 

[Hesky82]

Thanks for the help guys, tbh I was just going to plug the psu in without lookin at the manual (probably should have, like ya said the keyed plugs would have made things obvious in the end), anyway I decided otherwise and the poor explanations in the manual just confused me more.
Anyway its up and running, I checked all the voltages under 2 instances of super-pi and non go under specs, the 12v rail drops to around 12.3v from 12.36v when under load according to my dmm. I noticed that one of the molex socket isnt supplying 12volts though, thought it was a dodgy cable at 1st but it is actually the socket inside the psu I assume anyway, have another 2 left spare so this may not be a problem, hope not anyway as I cant be asked to send it back just for this reason. probably just a simple rewire inside the psu.

Thanks again chaps!

 

[Hesky82]

Sweet, looks like this psu is future-proof for 'Conroe' then