Mining card recognition
Check for dust on the graphics card fan, yellowing of the PCB board, and wear of memory particles; Be cautious when the price is far below the market price. The lifespan of mining cards is short.
Refurbish storage disk
Check SMART data for power on time and write volume; A 'brand new second-hand' with zero power on is basically a refurbished or reset disk.
Other precautions
Aging of power supply poses a risk of explosion; Be cautious of motherboard capacitor bulges; Check the SN code to check the remaining warranty time.
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