I.nfraR.ed Posted November 22 Posted November 22 (edited) The Dual OC has a custom PCB that is different than reference and Strix. I could not find a compatible boardview file, but there might be some other model that uses same/similar PCB. It's my first touch with AMD card newer than HD7970 and I didn't even know what I'm buying, but this particular model seems to be a popular amongst miners in my country. The PCB exposes convenient I2C pads for the main PWM controller and also additional pads for hotwire (vcore, vmem, vddci). To enable hotwire functions, I had to bridge some pads for the different rails, otherwise the pads are disconnected and you can only use the measuring points. - I2C connection to ASP1300 - it's a relabelled IR3567B and EVC2 has full support - bridge pads marked in red to enable OVM and OVCI pins. For example, to control memory voltage with EVC, connect a GND point to GND on EVC, OVM to SRC1 and VDDM to VIN1, then use feedback mode in the software. It should be possible to use a regular hardware mod with a variable resistor (trimpot), but you need to connect one leg to OVM and the other one to GND. Always measure voltage under load. The core pads are on the back of the card, but that's unnecessary if you're going to use the I2C pads for the main PWM. Edit: Replaced images Edited 18 hours ago by I.nfraR.ed 3 Quote
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