Well.. my gpu was revived. thanks for everyone who help me in this!.. im gonna write the journey to success
1) first Intent
I had to found someone with weldering skills to make the short in the pin 1 and 8, but it didn't work, the 8 beeps persist
2) Second intent
We try it with a thicker cable, but again, the 8 beeps
3) Third Intent
I bought the CH341a USB, but the chip winbond is big and trying to put the tweezer on the chip one of the capacitor, the little brown came off and became a nightmare situation, cuz the capacitor is so tiny, more than grain of rice, after 4 hours seeking it i found it.
at this point i came to the welder guy, he weld the capacitor and desolder the winbond chip, and then i used de CH341a again and works, the tweezers made a good contact with the terminal of the winbond chip, i uploded the right rom. welder again the chip on the board, and the 8 beeps has gone for good.
Here you can see the capacitor weldered and the winbond chip too,,
The final installation
Happy ending.