The Winbond W25Q256J (32 MB / 256 Mbit) is a high-capacity SPI / Quad SPI BIOS Flash IC engineered for gaming laptops and advanced motherboards.
It stores the full UEFI BIOS firmware and the EC (Embedded Controller) code that manages RGB lighting, thermal profiles, fan speed, and power sequencing.
Used in flagship gaming models from ASUS ROG, MSI, Acer Predator, HP Omen, and Dell Alienware, this IC ensures faster firmware loading, stable overclocking behavior, and reliable startup under heavy GPU and CPU loads.
At OKSpare, your trusted Delhi Nehru Place BIOS IC supplier, we provide genuine Winbond W25Q256J BIOS ICs, quality-tested for accuracy and consistency, delivered at the best prices with fast nationwide shipping.









