7900GT "dead" ?!

[andL64]

hi there

i modded the 7900GT board which i ve done correctly, but i got lazy and didnt check the 10kohm vr exactly only turned to full resistance, but this poti was damaged and now the card is, its a vmem mosfet i got a nice pic of it, its half burned on one site i cant read the numbers exactly for datasheet, but i think it is 4420 - BD6B12 or something

i m good in soldering so if it s possible i can do it but i m not that good in electronics so what chance i got?

i know theres was going a lot of volts through it so maybe the gddr memory is damaged too but i dunno exactly

thanks in advance!