Toshiba satalite L305D starts then shuts off. Need help.

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Kitetsu

Reputable
Jun 4, 2014
2
0
4,510
Basically the computer will start then about 10-20 sec later will shut off. No display what so ever. Doesnt seem like the computer is getting to POST.

Ive done my research, im just looking for some things to try.

Things Ive tried.

* Changed power adapter.
* Holding the power button for 60 sec without battery and AC (refresh trick)
* Cleaned internals of dust.
* Attached VGA to external monitor.
* Replaced the entire Motherboard ( yep even that didnt work)
* Removed and Re-applied thermal paste to CPU and Heatsink.

At this point Im thinking its either the CPU not getting good air flow, or just dead or possibly a CMOS problem. I also tried to remove the CMOS battery, but its Soldered on.

Any help would be appriciated. Also, buying a new computer is not an option.
 

Kitetsu

Reputable
Jun 4, 2014
2
0
4,510

The only part that is common is the CPU, heatsink, cables and the case itself.

Right now Im thinking the CPU is dead. (I didnt think that could actually happen). Im gonna replace it and see what happens. I'ts relatively cheap fortunately.

Question:
If this was a CMOS battery problem, would the new battery on the NEW motherboard fix that problem?
Thanks.
 
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