cooler master hyper 212 evo, 30-35 bucks and a good cooler, not the top notch but it do the job and it's the best bang for the buck as it's perform as a 70-80$ cooler...

Also it's relatively small for an air cooler so, it won't interfer with other components like ram

http://www.coolermaster-usa.com/product.php?product_id=3053

did you replace the thermal paste?

Thermaltake Performer

alright thanks will check out the CM hyper 212. I checked the paste it seems fine, I am using a high end one - Arctic mx4

You know your supposed to replace the compound if you remove the heatsink ??? everytime you lift up you should change it. Try that, maybe it's only that used compound that degrade your cooling performance...

A friend of mine have a phenom x6 and always running at 70 celsius at idle (always underclock by high temps) and when we change is TIM then temps drop back to 30-35 at idle and this is just then that he say me, "i never replaced that TIM when i was cleaning my heatsink" and it was cleaning it at 3 months interval for 2-3 years...

Corsair Hydro Series H100

my computer isn't functional until i receive the new cooler.. i took it out to clean it and the paste looked okay.. atm CPU is waiting for the cooler to come

I use the Thermaltake Contac 30 CPU Cooler. Great for the price.

Corsair H100, overclocking is easy with that cooler.

what case do you have?

There are many coolers out there but you must measure the inside of the case to make sure it can fit properly and still give great performance. While people do say stock coolers work for multitaskers it's a terrible choice. Trust me, I am using a stock cooler and I hate it. Can't afford to buy a new one now though. Compared to the heat in my case and yours, yours runs pretty cool. Don't forget to wipe off old thermal past and apply a new set. This helps with cooling. I use arctic silver 5. Wiped of what came on my stock cooler.

If you have a case that can support it, the Corsair H100 (need room for a 2x120mm radiator somewhere INSIDE your case) is your choice.

If not, the Corsair H80 is the next best thing - run it with dual fans in Push/Pull config. The H80 will fit in the same place you were running that H50, but the radiator, pump and cpu mounting are MUCH better.

Just as a sanity check though - that 40c-60c temperatures you were getting really are not that bad at all - even for non-overclocked. Your chip can handle near 90c without damage and 70-80c without breaking a sweat. Be aware also that ambient temps also play a part in this as well. A computer running in a room that is 28c is going to run 8c hotter than a computer running in a room that is 20c. If your comp is hitting a max of 60c during gaming in a pretty warm room, I would day you were doing great.