820-3126-A No video

[javier_herart]

Hello

iMac 2011

Reballed the GPU 1 year ago, today returned because of distorted video so I reballed the GPU again.

Now the imac wont boot, no video.

LED501 is on.
Fans spin super fast.

Is there a way to know if the GPU is working?


Thanks

 

[2informaticos]

If you only worked on the MXM card, what else problem can be?