Macbook Pro A1278 wont power up

[angel-boy]

Macbook Pro A1278 wont power up
- when i press power button , power led light about 1 second and off.
- no sound , no image, the fan spining few seconds
any help ?

[dellxps15]

Re: Macbook Pro A1278 wont power up

i have one with same exact syntom. reballed chipset and smc and reprogrammed bios: same result.

[crowntoy99]

Re: Macbook Pro A1278 wont power up

try Re Flash bios

try also bios chip track ..

[dellxps15]

Re: Macbook Pro A1278 wont power up

angel boy can u post pin bios voltage ?

on mine i have only the 3.3 voltage at pin 1-3-8 so i thing my nvidia chipset is dead...

[angel-boy]

Re: Macbook Pro A1278 wont power up

tell you tomorrow .

[angel-boy]

Re: Macbook Pro A1278 wont power up

I talked to a friend and told me possible defective processor or may require reballing

[angel-boy]

Re: Macbook Pro A1278 wont power up

i dont have charger , the battery is down.
what did you think about my friend opinion ? cpu ?

[dellxps15]

Re: Macbook Pro A1278 wont power up

in my macbook there is a p8600 that get very hot as a cpu normally, so it could be possible.

[dellxps15]

Re: Macbook Pro A1278 wont power up

this week end il get the board with reballed cpu. we'll see if it was right that problem was cpu :p

[dellxps15]

Re: Macbook Pro A1278 wont power up

macbook with cpu reballed..... still power on and fan spin for 1 -2 seonds then power off.... so it's not a cpu problem...