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When I turn it on I get an 'AA' POST code on the motherboard's LED readout, and nothing appears on the screen.

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Hi, I recently updated the BIOS on my Gigabyte GA-AX370-Gaming 5 to the latest version, F31 and the POST code display shows 'AA' as opposed to '24' on all previous versions.The H67 chipset used on this AA revision consists of the following component: Device Stepping S-Spec Numbers 82H67 Platform Controller Hub (PCH) B2 SLH82 82H67 Platform Controller Hub (PCH) B3 SLJ49

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