My laptop keeps beeping and th screen is black

"black screen and beep problem

i am already check and done all kind of solution like ram change , ram jack change, hard disk change cell change, all open the laptop and remove the fan on the processor and clean the processor chip and give the head 4 minutes and use thermal grease and re installed all equipment and check the laptop again on the laptop but problem the same .... this is not solution . you most give the laptop to repairing the repair guy........"

"All computers have what are called beep codes, I hear one beep and know I'm good to go.

I can give you a link for your beep codes http://www.dell.com/support/article/us/e...

You need to count them, there is a delay between each error beep so you know the count.

Normally you will hear the beeps just once (they don't repeat) - Go figure the link claims Dell just continues beeping on..., so start it up and count em. Continued beeping could just as easily be a high CPU alarm but it sounds like you have that covered."