Dell inspiron 3800 notebook wont boot there was a message saying the memory was running low about 10 minutes before freezing then i couldnt turn it off so i plugged out mains with no battery in i tried to change hard drive but it wasnt that so i think the ram is fried when i went to turn it back on nothing would happen only power led lights come on then nothing it was also near a strong source of heat but not directly touching it any takers thnx ....bonnell

SOURCE: Dell Inspiron 9200 stopped working does not power on

This is a very useful post from LapTopReapir-101

Laptop is DEAD. How do your troubleshoot the problem?

In this post I’ll explain how to troubleshoot a dead laptop and find the problem. The following troubleshooting tips are not model and brand specific, they should work for most laptops.
Let’s take a look at two different scenarios.
Example 1. The laptop is absolutely dead.
When you plug in the power adapter and press on the power button, there is no signs of life at all. The laptop will not make usual noises, LEDs will not light up, the fan will not spin, the screen is blank and black, etc… In short, the laptop is dead.
What you can do in this case?...

For more in this article please click on the link below.

Laptop is DEAD. How do your troubleshoot the problem?

if you have other questions just lemme know

SOURCE: Inspiron 1501 won't turn on

do you have the dell diagnostic CD??
if you have it may help you to figure what is wrong??
here is th link to the troubleshooting steps.
http://support.dell.com/support/edocs/systems/ins1501/en/om_en/html/trouble.htm#wp1062918

I suspect the hard drive may be on its way out. unfortunately you can't see the screen.

SOURCE: No Power : Dell Inspiron 6400

Did you try to do a flee power test on the motherboard. Remove both the AC and Battery and press the power button of laptop for 30 seconds, then connect only the AC and try turning it on. See if it works.

SOURCE: orange blinking power light on Latitude D820 laptop

sounds to me like when u lost power it surged and froze your battery and now your battery has dead cells honestly the best thing to do is get a new battery

SOURCE: dell inspiron b120 laptop won't power up

i dont know why dell did this but you have to have battery to run your laptop. the ac coard charges the battery which runs the computer. I really know why but i dont like the configuration. it is so the power is clean to your computer and so the can have less parts in the laptop you need to get a new battery