ASUS (90N804SH021) Hard Drive "k501j" Questions

my web cam is upside down an my asus k501j The only way to resolve this issue is to take it into a repair store and let them fix that for you.

My asus K501J was suddenly working then i turned it off and went back on a couple of hours later and every time i turn it on now it goes to the asus menu thing and then it goes black. What should i do

My ASUS K501J shuts down after 5 minutes. I was advised to get a new hard drive. I installed a Hitachi (Hitachi Travelstar 7K500) and and I'm getting the same problems. Any ideas? I'm running Windows ...