Hi
, I have an iMac Pro A1862, motherboard number 820-00967, from which the Boot ROM (VBIOS) chip has been removed. The computer won't turn on or display video without this EEPROM chip from the 25 series. The GPU can't load its initial instructions or communicate with the Xeon processor or the T2 security chip. Does anyone have an official Apple firmware (VBIOS) dump for an 8-pin SOIC-8 surface-mount SPI Flash chip for the 8GB Radeon Pro Vega 56 GPU?
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