Toshiba l40 18w not working

[innocentforeign]

HI
every one i got a toshiba machine form customer , he say laptop fan was close from 2 days and now machine not working . i check it and open machine north bridge side was full from paste now just charger lEd working 2.1 volt coming at power button please help

[DJduck]

Re: Toshiba l40 18w not working

"he say laptop fan was close from 2 days". Do you mean that the fan did not run for two days? If so, you probably have a fried cpu/gpu/chipset/mosfets under the heatsink/all of those problems.

[innocentforeign]

Re: Toshiba l40 18w not working

yes but he use extrnal fan after open i saw fan was full from dust


now how can i fix this problem

[DJduck]

Re: Toshiba l40 18w not working

Try a different CPU, reflow the GPU and chipset.

[ben7]

Re: Toshiba l40 18w not working

Likely killed the heatsinked part(s).

Even using an external fan, if the heatsink is plugged with dust, you will get a fried chip...

[innocentforeign]

Re: Toshiba l40 18w not working

thanks
after change cpu bord working now display not coming caps lock num lock not working i reflow gpu but same problem no display

[innocentforeign]

Re: Toshiba l40 18w not working

any idea how to fix it