Solved, i edited the postLate thought: will the system boot via Safe Mode?
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I would not move the GPU to another PC - more needs to be known if at all possible.
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The glare makes it difficult to see the full ribbon cables and PCIe ports being used.
Hopefully someone will recognize and understand what those LEDs are indicating.
Do they just blink once (and you were able to capture that) or do the LED continue to blink?
Is that a cable that came with the GPU?
