My video card runs around 50 degrees idle and around 65 to 70 when gaming. My motherboard is a Gigabyte MA785GM-US2H the pci-e slot is a 16x (2.0)
I have the latest ATI drivers as well.
The Motherboard has an HDMI slot but i'm not using that one. I'm using the HDMI port on my video card. I tried plugging the cord into the motherboard HDMI slot but the computer didn't recognize it.
All the info of my board can be found here- http://www.gigabyte.us/products/product-page.aspx?pid=3447#sp