Hello guys,

Recently i traveled to Germany and got a Sapphire HD 5750 on a Conrad store. The default clocks are 700/1150 and without any hardware change i was able to run completely stable (Furmark) at 850/1350.

Im an electrical engineer and i already developed by my own the voltmods for my old 7600GT and 9600GT. Now im really excited to start the modding with this new ATI card. However, first i have some questions that i would like your help to answer:

1) The 5750 have 80 shader units less than 5770, but the chip seems to be exactly the same as it have the same transistor count. These 80 units are hardware disabled? (like laser trimming on chip) or they can be enable by software? (flashing with a 5770 bios)

2) I see some screenshots of MSI afterburning with the voltage adjustment enabled, but in my case this is disabled. This is because 5770 has a different VRM, or itīs just a software question?

3) Have anybody here already tried GPU voltmod for 5750? What is the stock voltage and what is a safe limit?

Thanks!