De España buenas noches
hard vmod gtx 550 ti and pencil mod
Can you post a picture of the PCB?
I have marked the 2x areas you need to focus on..
GPUv = the square/black IC in the smaller red square
vMEM = under the mosfet cooler.. it looks like... should be a 8-16 leg IC under there
:( no bueno..
* I have marked the picture below, how i think the IC's are tied to the various phases..
Im not certain what the pinout for the GPUv controller is... it doesnt look like a familiar chip. It could be .. just in disguise though. If you can measure resistance around the IC and map out some ground points - we may be able to figure it out though. :)
**Orange box = vMEM area - can you post close-up picture of this area please?
Edited by CL3P20 - 4/21/12 at 11:33pm
This IC looks very familiar to NCP5359, used on Gigabyte model GPU...
**Can you please measure resistance at the 'blue' and 'yellow' resistors I have marked? As well... please see if either of those resistors have a connection to ground.