1520 won't boot at all

Hi, I've had this 1520 for 10 days now, it came with a terribly grainy AUO and when an engineered came it was replaced with an even worse AUO (he took the laptop to pieces). Anyway it's about to go back for a refund, when yesterday I was using it to zip a 2gb file and it got to 66% then just froze, for 15mins which was when i decided to just switch it off.

I re-booted and tried to zip the file again but this time after just 14% and 2minutes it froze for another 15mins, so i switched it off. Now I try and boot it again and this time the screen doesn't even show anything, the blue lights are on around the laptop and it switches it self off with a 'beep' after 1minute of displaying nothing. I left it for 15mins to cool down incase it had overheated or something (i'm no pc expert!) and i realised that was the first time the cpu had been put under heavy load (100% usage constantly for 15mins) since it was taken apart by the engineer.

After I left it to cool for 15mins it did switch on and i managed to delete all the sensitive stuff I had on there, but since then i've tried it another 20 times over 24 hours and it won't turn on at all (does the same beep after 1min of displaying nothing, I can hear the hard drive spinning).

The laptop was going back for a refund before this happened yesterday and i've packed it up ready to go back. What do you think dell will say when they find it doesn't switch on? Or shouldn't I care?

Thanks for any advice, this is really playing on my mind

 

Generally. I wouldn't care.

Those techs are dips. That's why I ask management to send the parts and I do the work myself. Tech staff's are always morons usually when dealing with 'large' companies.

Obviously the tech didn't put something back right.. LOL

 

Ok, thanks, I thought I shouldn't really care much