Hi and sorry for my EN
I have vostro 1510 la-4121p when I turn it on itself turn off after 4 second, and when I turn on again the first led from left side ( I think num lock) is blinking and that 2 led is on I think this problem from cpu !!!
Cpu and gpu and n.b its heated and vcore is good near the gpu I have 1.5v but no boot this is my job do on this laptop
1-changed CPU
2-program the bios
3-change the gpu with 631 (even before that are 631)
4-changed I/O
5-change the charger ic
6-celan the ram slot and change ram
7-push the n.b and cpu when I turn on not help
8-heat the n.b not help
Buuuuut no good result all top work not change laptop behavior (first led blinking and 2 other is on)

Please help me