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while researching voltage control on latest ATI cards I found out that a lot of cards do not have ANY software voltage control at all.
If you have a HD 3xxx or 2600 card, please check the configuration of resistor R636/R639.
If it is placed HORIZONTALLY your card can support (limited) voltage changes.
If it is placed VERTICALLY your card can not support any software voltage changes, get the soldering iron out.
For reference here are two pictures:
Please report back your card's manufacturer, model, PCB number (GPU side near the top edge of the PCB usually) in this thread
If you have a HD 3xxx or 2600 card, please check the configuration of resistor R636/R639.
If it is placed HORIZONTALLY your card can support (limited) voltage changes.
If it is placed VERTICALLY your card can not support any software voltage changes, get the soldering iron out.
For reference here are two pictures:
Please report back your card's manufacturer, model, PCB number (GPU side near the top edge of the PCB usually) in this thread