QUOTE(Ulutorabook @ May 18 2015, 04:43 PM)
Hi Guys, I am having problem with my iMac HDD fan. If I run something requiring high graphic usage like Video Rendering or Gaming, it will make a noisy fan sound and then the performance will drop drastically.
I have done the Hardware test and the error msg confirms it is the HDD Fan.
Can anybody share to me, what is the price of repairing it at Apple or whether i shall opt to repair it myself?

Which year model is yours?
What error you get? Fan spinning below speed?
QUOTE(kenlimfornication @ May 19 2015, 10:39 AM)
hi all,
my fiancee has a 2010 or 2011 MBP and it is super slow, can hardly run word, safari, chrome without having to wait for a minute or so.
we just sent it for dust cleaning few months back and we suspect that this happen after installing OS X. Is there common issue we can easily fix? I'm an apple newbie and have never touched it more than once.
Cleaning shouldn't affect the unit performance, in fact, if done right it should run smoother.
If you have older model and you install the latest Yosemite, slow is expected, else there might be other issue with your unit. You can try performing simple troubleshooting like repair disk and repair permission, also check if you have enough free space.