My newly bought used RX 570 4GB will, when installed and connected, make my PC not POST, does not even show motherboard splash screen. My specs are: i5 2500, Intel DH67BL with BIOS BLH6710H.86A.0122.2011.0601.1554, 2x4GB Hynnix DDR3 1600Mhz RAM at 1333Mhz, an unbranded SATA SSD with 480GB...