1. Is my old 12VHPWR cable safe with a new 12V-2x6 GPU, or do I need a new cable?
Answer : Using a 12VHPWR cable with a GPU with the latest 12V-2x6 connector should be fine since the cables remain unchanged, while the GPU or PSU connectors have been revised under PCI Express / ATX standards. The new 12V-2x6 connector features shorter sense pins and longer conductor terminals, providing a better connection than before.
However, you should still follow the manufacturer's guidelines to ensure a proper connection with the GPU, which will keep your connector safe from melting. Moreover, it's best to use an ATX 3.1-compliant PSU, especially for high-end GPUs like GeForce RTX 5090, to be on the safe side.
2. What is the actual status of the high-end Intel Battlemage (B770/B780) GPU?
Answer

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