Help! My computer has got much louder recently... any advice? (heat problem?

[bailystevens]

My computer is a HP (m7630.uk) with a E6300 processor...

it idles on about 45 celcius but under heavy load stays about 65 or above which dosnt seem right...also now it is VERY noisy.
I think i did some damage when i had to take the processor off once to refit it... any ideas what could be happening?

 

[bailystevens]

General fan noise.

Under 0% load it sounds as loud as it used to under 100% load, and under 100% load its louder than my washing machine :S

The fan speed only reaches 1700 however so im not sure why