Locked Computer

I have an Inspiron 8100 Dell laptop and when I power on all the green lights come on but then it shuts itself down after about 3 seconds before it fully boots up. Before this happened my computer had been on for several hours and then froze on a black screen and jogging the cursor did not bring it back. Dell said it might have something to do with the locks (cap, num, etc.) being on which they are, but they did not tell me how to fix it.

Please note that I recently updated the memory but it worked after that.
Any help would be greatly appreciated. Thanks.

Hmm...I think this belongs in the hardware section. You'll get more help there.

Are you getting any POST codes out of it? i.e. Beeping

Dell = good customer support. Ring / email em up again.

It might be worth a shot to take that extra memory out then see if it will boot.

Are you plugged into power when you turn it on?

HAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHA!

theyre customer support is usually good. i hvnt heard of anyone who gives betta support.... have you??

For the Inspiron notebooks, hit F2 at the Dell boot screen to go into
Bios . ...Then when you get there just make some changes (default )
whatever ,nothing drastic ,cause after it boots your going back ,and
putting it back . Try that