Macbook Pro 15 keeps restarting forever


macrumors newbie
Original poster
May 1, 2018

Im from Poland.

My Macbook:
Apple MacBook Pro 15-Inch "Core i5" 2.4 Mid-2010

My Macbook Pro 15 keeps restating forever immediately after power on.

I don't have battery anymore, only works on adapter.

I have green light after connecting the adapter and white light in front after power on. When I plug in the power supply, the macbook turns on, you can hear the fans, dvd and hard drive, but no gongs. After 3 seconds it restarts. Screen always is black.

trying reset SMC/ PVRAM, nothing works.

I searched the internet but not found similar problem.

I have 2 GB of Ram, tested. Ram works. I tested even on other memory dice, but still nothing.
If i disconnect RAM from socket, then fans on board spinning faster and i hear sounds like "bip bip", but there is no restart. Fans spinning, black screen.

Can it be this

Whats the problem? Can anyone know?

Thx for help
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