Acer AB460 F1 - Manual (Page 615)

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failed. For example, “2C 0002” means address line 1 (bit one set) has
failed. “2E 1020" means data bits 12 and 5 (bits 12 and 5 set) have
failed in the lower 16 bits. The BIOS also sends the bitmap to the port-
80 LED display. It first displays the checkpoint code, followed by a
delay, the high-order byte, another delay, and then the low order byte
of the error. It repeats this sequence continuously.