Can my system use the Nvidia GTX 960 Superclocked?

[Arkten]

Hello!

This is my first ever post here, and I'm seeking some help. I'm trying to get a new graphics card for a couple of reasons; the primary one being that the one I have, a GT 620, constantly overheats even when not doing any gaming and usually idles at 60 degrees celsius, no matter how clean I keep it. The second reason is that I would very much like to actually be able to play newer games with some decent graphics; I can barely even play Skyrim on low-mid graphics, for example.

Now, I've ran Piriform Speccy and retrieved what my motherboard is, and after having done a bit of looking I found out it only has a single PCIe 2.0 slot. I'm new to the hardware side of things, but I believe I remember seeing the version of the GTX 960 I looked at would require a PCIe 3.0, however I don't know what to do.

This is my motherboard: Gigabyte Technology Co., Ltd. GA-78LMT-S2P (Socket M2)

This is the graphics card I would like to get: http://www.amazon.com/gp/product/B00T4BWGBM/ref=cm_cd_asin_lnk

Having said that, I'm willing to to switch to a different graphics card if I can't get that one for some technical reason that I don't know of. If that is the case, then please make suggestions. I have a $200 budget for a graphics card and about $60 for a power supply, as I know I'd need a much stronger supply for the 960 than the 350w that came with my computer.

Update: I'd also like any advice regarding solving an airflow issue, if that might be the case. I don't know if it is, but I'm willing to try. I just don't know how... This is my first computer, so I'm rather inexperienced in this stuff.

 

[popatim]

If you are overheating a GT620 which barely needs a fan, you need to figure out why its overheating and make sure its not related to poor case airflow or where the pc is located first.

 

[Arkten]

If you are overheating a GT620 which barely needs a fan, you need to figure out why its overheating and make sure its not related to poor case airflow or where the pc is located first.

I have tried to figure out why it's overheating for months and months now, but I simply haven't figured it out. I don't think it's a location or room temperature issue, though. I'm thinking it may well be the airflow issue, now that you bring it up, but I don't know how to fix it. I can't exactly leave the case wide open; I have a cat that likes to come into my computer room and his fur would get in there.

I wonder... I have this computer, basically. A couple things are different, but the brand and chassis style are exactly the same. Does that provide some clue to helping me out with an airflow solution?