Never alter a PCB layout without performing a Design Rule Check (DRC) and back-annotating the changes directly to the schematic source file.

The DS80249 is a derivative of the Maxim Integrated (now Analog Devices) DS8024 Smart Card interface IC. The “P” typically denotes a package type (e.g., TSSOP or QFN), and “Rev 12” indicates the twelfth revision of the evaluation board or reference design. If you are working with an official Maxim/ADI EV kit, this article aligns with that documentation.

Pay close attention to the small 5-pin or 6-pin buck regulator ICs. A tiny pinhole or bubble on top of the silicon package indicates a catastrophic overvoltage failure. Step 2: Cold Resistance Ground Checks

Are you attempting a specific repair on this board? If you'd like, let me know:

Comprehensive Technical Guide to the DS80249 P Rev 12 Schematic

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The Rev 12 diagram traces the signal paths from the GPU core to the external display connectors (Dual-Link DVI, HDMI, and DisplayPort). This includes the level shifters and ESD protection circuits, which are vital for repairing cards with "no video output" but functioning fans.

Locate the 3-pin or 4-pin unpopulated header on the PCB marked (usually labeled TX, RX, GND).

Bidirectional line with two failure modes often seen in Rev 11: