Completely dead!!! Please help

Ww1987

Commendable
Sep 20, 2016
2
0
1,510
Hi. I have just installed new mobo and new pcu on my Toshiba p870 (same as before) and still nothing (blank screen, no sound, fan not spinning...)
The only sign of life is led light when i plug the charger.
I have already tried different charger, going with just 1 ram in different slots and going barebone with just mobo, pcu and 1 ram. No luck.

Any suggestion what can be the problem?