Best to try again taking it down to what level you had it at and carefully put it back together.
Good Morning All,
I have an issue with my Dell Inspiron 1525. It was over heating but it had no startup problem. The computer works well and I am able to use every application.
But after cleaning the heat sink, The computer do not start, Please help me if I need to do any other checks.
Here is what I did to clean the heat sink. I removed the heat sink, removed all the dust and placed back again, I also applied Thermal greese as well. But when I tried to start the laptop, all the multimedia inidcators above the keyboard (mute, volume increase, volume decrease) are seen working as usual, I can hear, it trying to use the DVD drive, I can hear the fan working. I can also see the power indicator (only) in the left corner of the laptop. No hard disk or wifi indicators. I also do not see any of the three error indicators (next to the power button above the keyboard) shown.
One thing to note is, when I tried to remove the sink, the processor also came out. So I loosened the screw, fixed the processor..
I did not completely disassemble the laptop, To remove the heat sink I just touched the eight screws under the laptop and five screws of the heat sink.
Please advice if I need to do any other checks.

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