Hey I currently have a Lanparty ultra-d and Im running a OCZ modstream 450w.
Performance has been great until recently when I upgraded to 4 hdd's.
I now get crashes under full load and other weird happenings, Im guessing its the 12v rail on the powersupply not cutting it.
I've looked around for a new powersupply but Im not sure which one to get. I am considering getting a Modstream 520w, but its a bit expensive over here.
I've narrowed it down to 2 so far,
The Antec NeoHE 550W - $169.00 (aussie dollars)
or the Silverstone ST60F 600W -$189.00
Now, by the looks of it my Modstream has better 3v/5v rails than the others, but is just lacking in the 12v department. The Antec has dual 12v rails and the Silverstone has quad 12v rails.
So, basicly the only thing these have got over my 450w, is dual rails and a bit higher watts on the 12 rail.
Do split rails really make that much difference, I'm currently leaning towards the Antec, mainly because its cheaper, but also because it has 85% efficiency as opposed to 75% of the ST60F.
So thats my dilemma, any help would be appreciated.