It is normal to make such noises. You can reduce the level of that noise by using hdd fan (10$) to reduce the temperature and by defragmenting your hdd regularly; best defragment software: O&O Defrag Pro, Diskeeper (own opinion; using both; they are the best).
O&O Defrag Pro:
Code:
http://www.oo-software.com/en/
Diskeeper:
Code:
http://www.diskeeper.com/diskeeper/diskeeper.asp
You can check your hdd by using checkdisk. "Start menu->run", write "cmd" in the comand prompt write:"chkdsk c:","chkdsk d:","chkdsk e:" and so on all your partitions on your hdd. After you check it you can defragment using one of the above programs but do not use microsoft defragmenter it is a pain in the ***.
If you want to check the temperature of your hdd you can use:
free: speedfan
Code:
http://www.almico.com/speedfan428.exe
paid: hddlife pro
Code:
http://www.hddlife.com/eng/compare.html
About speedfan you can see the current temperature of your hdd and you can see the S.M.A.R.T. attributes of your hdd. Read help to know how is your overall performance of your hdd and you can see really good analysis by pressing "in-depth analysis" button.
I just saw that my max temperature for my hdd model is 48 C and mine is 47 C. I think I will get hdd fan too
.
And finally if you want to feel how hot your hdd is just touch it on the covered metal side not the one with all the chips on it and like Nodsu said you should always make sure you are grounded.
The temperature is always a problem in the summer.
You can test your hdd for a month to see is it fine and then if it is not just use your warranty. Of course you will not tell that you touch the chips while hdd was running
).