GT24C02A-2ZLI-TR GT402A EEPROM for Antminer S19 S21 T21 Hash Board repair

GT24C02A EEPROM for Antminer S19 S21 T21 Hashboard Repair

The GT24C02A-2ZLI-TR (also referenced as GT402A) is a 2K-bit electrically erasable programmable read-only memory (EEPROM) chip used on Antminer S19, S21, and T21 hashboards. This chip stores critical configuration data that the hashboard reads during boot — when the EEPROM fails or becomes corrupted, the hashboard may not initialize, report incorrect parameters, or fail detection entirely. Replacing a faulty GT24C02A restores the hashboard's ability to communicate properly with the control board.

GT24C02A EEPROM Technical Specifications

GT24C02A Role in Antminer Hashboard Boot Sequence

During power-up, the hashboard controller reads configuration parameters from the GT24C02A via the 2-wire (I2C) bus. This data includes chip calibration values, voltage references, and board identification. A corrupted or failed EEPROM causes the hashboard to either skip initialization or report errors to the control board. The wide voltage range (1.7V–5.5V) makes this chip robust across varying power conditions, but physical damage from electrostatic discharge or solder joint degradation remains the primary failure mode.

EEPROM Replacement & Hashboard Diagnostics

Identifying EEPROM failure requires isolating the hashboard and testing with diagnostic tools. The K8pro ASIC Miner Hashboard Tester includes EEPROM read/write capabilities that can verify chip health before physical replacement. If the EEPROM is confirmed defective, desolder the failed chip using standard SMD rework equipment and install the replacement GT24C02A. After replacement, the EEPROM may need to be reprogrammed with the correct configuration data using the K8pro or equivalent tool.

Antminer S19 S21 T21 Hashboard Repair Ecosystem

EEPROM replacement is one component of a broader hashboard repair workflow. For Iceriver hashboards using a different EEPROM variant, the AT24C02C EEPROM for Iceriver KS5L covers that platform. For comprehensive Antminer diagnostics beyond EEPROM testing, our Universal Antminer Hashboard Test Fixture provides full chip-level scanning.

Why Buy GT24C02A EEPROM Chips from LYS?

We maintain stock of Antminer-grade EEPROM chips sourced directly from authorized component distributors in Shenzhen. Every chip meets lead-free, RoHS-compliant, and halogen-free standards. DDP shipping is included worldwide. At $0.60 per unit, these components are critical to have in stock — a single missing EEPROM can idle an entire hashboard. Contact us for volume pricing on bulk orders.

Next Step: Get the K8pro Hashboard Tester with EEPROM support or contact our support team at contact@lys-sz.com or via WhatsApp for technical guidance on EEPROM programming and hashboard repair.