Toshiba Satelite L20 wont boot

[Phelios]

I use this computer for around 2 years already. but, from 4 months ago, it started to show strange behavior.
For example if I restart it, I have to wait for 5 - 10 minutes after it shut down to boot again.

It's still looking good. However, it was solved using a cooler. If the cooler is plugged, it can be restarted immediately.

However, the problem getting worser now. I can't boot my computer without cooler plugged into the laptop. Anyone know how to solve this?
Thanks....

 

[lamo]

where exactly you connect the cooler? in USB connector?

 

[Phelios]

where exactly you connect the cooler? in USB connector?

Using USB. The computer can detect it though hasn't boot up the system.

 

[lamo]

seems like lack of 5v current. it can be overvoltage via USB-bus. or it can be faulty southbridge chip.

 

[lamo]

don't use equipment like lighters or fans, which connects to USB. it's dangerous.

 

[Phelios]

don't use equipment like lighters or fans, which connects to USB. it's dangerous.

But, I can't start the computer without it...
Any solution for this?

 

[lamo]

ah! this is the problem. i can only propose to replace southbridge chip. at least i would do this.

 

[Phelios]

Hahh?
what is it btw? where to find the chip?

 

[lamo]

phelios, if you have equipment for BGA soldering, you can replace it, but i suspect, it will be much easier for you to replace the MB.