Originally Posted by Foffy
About the power supply, it comes with cables, right? Could I use my old cables on the new supply? I assume even with the one I have, I'm putting all of this stuff at risk with use? Would getting a new one help with the heat issue I'm noticing? Should I get one that's stronger, or are the ones you suggested a good sweet spot for what I have?
I'm worried with a new supply that I have no disconnect all of my old cables, and I might connect wrong things and what have you. D:
Yes they come with new cables, and no you won't be able to use your old cables.
What I did last time I switched power supplies is left all the cables connected but detached the supply from the case, then attached the new supply and swapped out the cables one by one.
There probably wasn't much risk with your old setup since it wasn't as demanding on the power supply.
But when you added the GTX 580 it suddenly was being asked for a lot more.
For the setup you have a stronger power supply isn't needed, unless you plan on doing more upgrades that will draw more power.
As to the heat, the GTX 580 is going to produce more heat, thats all there is to it.
However, when they build the cooling for the card they design it so it can handle it.
As long as the CPU temps (top box) don't go much over 70°C, and the GPU temps (bottom box) don't go much over 90°C, then you're fine.