Well as for "everything else" that's the rest of the main board, optical drive, and a hard drive. The optical drive is rated at 1.5A on the 5V rail and 2.5A on the 12v rail so another 30 watts on the 12V. The hard drive is rated at .7 on the 5V and .75 on the 12V. So another 9 watts on the 12. So we're up to roughly 129 Watts on the 12 rail. That doesn't sound like I'm pushing the 160 all that far to me.