7900GT over voltage protection?

[aicjofs]

Isn,t D511 to ground 1.7V

Only if you replace the resistor with 50k resistor.

To pass 1,5/1,55 u need to rip of the 5kohm resistor and put a 50kohms am i right ?

Kind of. You can get 1.5 or 1.55v by replacing the resistor but it's not necessary. You can get 1.5 or 1.55v with or without replacing the resistor

This sums everything perfectly for voltage you can get by replacing or not replacing the resistor.

There are two possibilities:
1) Either you do not change any resistor at all, and then this table applies:

options starting at 1.200 Volt with the existing sertting of "01110"
-------1.200-1.250-1.300-1.350-1.400-1.450-1.500-1.550

Pin22----0-----0----0------0------0-----0------0----0
pin21----1-----1----1------1------0-----0------0----0
pin30----1-----1----0------0------1-----1------0----0
pin31----1-----0----1------0------1-----0------1----0
pin32----0-----0----0------0------0-----0------0----0


2)Or you change the resistor as in the picture from Flytek to 50Kohm,
then this table applies starting from 1.5 Volt for the existing setting of "01110"

-------1.500-1.525-1.550-1.575-1.600-1.625-1.650-1.675-1.700Volt

Pin22----0-----0----0------0------0-----0------0----0-----0
pin21----1-----1----1------1------1-----1------1----0-----0
pin30----1-----1----1------0------0-----0------0----1-----1
pin31----1-----0----0------1------1-----0------0----1-----1
pin32----0-----1----0------1------0-----1------0----1-----0

In the Picture that FLYtek mailed, the wrong combination of resistor and table was made.

Other usefull info...

Pin 21 = "A" in the pictures = D511 in the pictures
Pin 30 = "B" in the pictures = D508 in the pictures
Pin 31 = "C" in the pictures = ??? (didn't look)