A better case for overheating computer

[Absolent]

Hello, what would be the best case when it comes to cooling since my PC suffers of slight overheating (performance drop, no bluescreen or anything severe) which irritates quite a lot.
I've literally put a desktop fan next to it to keep it cool which it does though doesn't 100% effectively counter the problem.

So if you could give me, say, 3 different cases with the reason you recommend them, the cheaper the better. If you wish to know the budget, make it under 80€, but just still as cheap as possible. Thank you!

 

[Ubrales]

http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&DEPA=0&Order=BESTMATCH&Description=cooler+master+cases&N=-1&isNodeId=1

Use this as a reference and pick the one that suits you the best and is locally available.

Your computer overheating issue is probably more than case related. You may have to re-install the CPU/heatsink using good thermal compound such as Arctic Silver 5 or better. Also, consider a better heatsink.

 

[Absolent]

Could be. The computer is an ASUS Essentio CM6730, which I nailed for a good deal to get it. It appears from my research that some have had overheating problems and so, I did add as much fans as I happened to have and only one slot was left open. I think I could try to add thermals if it could help enough. The computer's case seems pretty sealed though.

EDIT: by sealed I ment sealed from airflow, but not from opening up.

 

[Ubrales]

Could be. The computer is an ASUS Essentio CM6730, which I nailed for a good deal to get it. It appears from my research that some have had overheating problems and so, I did add as much fans as I happened to have and only one slot was left open. I think I could try to add thermals if it could help enough. The computer's case seems pretty sealed though.

EDIT: by sealed I ment sealed from airflow, but not from opening up.

Yes I understand what you mean by "sealed". Sealed does a better job of air flow and cooling as compared to a computer with the side cover open. In fact, some computers have an interlock switch that prevents operation when the cover is taken off.

You should look at a better heatsink, and re-installing the CPU/heatsink before you consider a new computer case.

 

[Absolent]

Think i'll look onto that, do you have any recommendations?

 

[Ubrales]

Think i'll look onto that, do you have any recommendations?

http://www.newegg.com/Product/Product.aspx?Item=N82E16835103099&cm_re=hyper_212_evo-_-35-103-099-_-Product

This is what I have on my overclocked i7 3770K. The Hyper 212 EVO is a very good heatsink and good value for its price!