Nvidia 4090 GPU stuck at

Performance: Both the iPhone 14 and iPhone 13 use the A15 Bionic chipset, but the newer model has a 5-core GPU stuck with 60Hz either way

Unfortunately I've try looking at the BIOS setting but I couldn't find his reference So I am still stuck at 8x According to my reading, you

gpu slot name  3 Press PCIe slot retention clip toward motherboard to release graphics card 4 Lift

gpu stuck in slot play this video Learn more · Open App Gaming PC Stuck on GPU LED! Let's Fix It!