After the motherboard replacement Tecra S2 does not start

Hello

I replaced the motherboard in my Tecra S2 and now it does not start, the power light is on but nothing on the screen. I can hear the h/d running DVD lights.
I tried to remove the RAM.
Also checked the CPU and still nothing.

NEED HELP.

Are you sure that the display is OK and correctly connected?
Is busy, I mean drive HARD HDD LED flashes?

Tags: Toshiba

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