New video card = random shutdowns!

Hi!

I recently got a new video card, and I couldn't be happier with it! But when I run games, about 10-15 mins in I get a shutdown. I figured my new video card was overheating, so I took the sides off my case and used a house fan to blow cool air in. It seems to work, a bit, I did have it shut down once since I did that. (So I took the other side of the case off :-D) While I am writing this post it is topping off at 54C but when I play games it goes to 60C-69C. That's pretty hot for my core, right?

Anyway, I was looking into it in my BIOS and it doesn't even show that a temperature shutdown is enabled. So what could it be? I'm pretty sure it's not my RAM, since it's never happened before until today (and I disabled to restart under my computer settings)

Any ideas about what I could do? Although I'm assuming that I might have to buy an extra fan for my case.

 

What's your PC specs?
Some cards do run hot but that's not an issue if they are expected to
Post your specs so we can determine possible problems.

 

What's the wattage on your PSU? possibly under the heavy load of gaming your PSU can't handle it.