Hi hi! I've used a dc current clamp to measure the current on each pin (cable) of the cabled 12v 2×6 cable I'm using for my gigabyte 5090. I was happy with the initial current distribution, but annoyingly after having to remove the card to install an m.2 ssd, I have found the distribution across the pins is slightly less even. I tried unplugging and re-plugging the connector twice more to test if the connection improved, but unfortunately it didn't get significantly better. I post this data in case anyone else finds it interesting – I think the specifics of the pin contacts and how they age is unfortunately rather random.
Any thoughts? I don't think it is concerning yet, as the three good pins are unlikely to get radically higher in current unless we completely lose pins 2 or 3. I do think avoiding an excessive number of connection cycles is probably a good idea. I am looking forward to getting one of the v2 thermal grizzly per-pin power monitors as soon as I can, though.
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Also, it is likely obvious by the total power numbers, but this card isn’t shunt modded.