Yes, it was directly onto the bottom right 12V pin. If you zoom in though you can see the flux residue I didn't clean at the base of the pad. So I suspect that may be what caused the short.
So in the cluster of three components that blew, could the third component be a diode? The only reference I have is the label "D546" and a marking on the top that says "BEC". All three are connected to ground on the lower side.
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Unfortunately things have taken a turn for the worse. I soldered a pin to the 12V supply from the PSU and hooked up the fan. It worked at first. It powered on and the fans were working. I did a GPU stress test to see if the RPM would increase with temperature, and it did until it hit around 50% speed, then there was a loud pop. Looks like I blew some of the capacitors at the base of the 12V rail. Either the didn't like the voltage drop or there was a short from me failing to clean the flux from the board after soldering:
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RTX 2070 Fan not operating - 12v present at header but drops to 2V when fan connected
I recently purchased a second hand RTX 2070 - an OEM Acer Predator manufactured by Sapphire - not a very common model.
Upon connecting it up I noticed the fan wasn't operating resulting in the card overheating and shutting down. I checked the fan operation independently by connecting it directly to a power supply and function generator - it was working correctly with variable speed according to the square wave frequency.
I then checked the output with a multimeter/DSO and verified that the GPU was putting out both 12V at pin 2 and PWM at pin 4. However, when the fan is...1 Photo
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