so i have thinkpad t440p that doesn't powered up for long time and the battery is empty, when i plug the charger and press the power button the laptop doesn't turn on and only the power button light blinking 3 times with no beep sound. i try with no battery plugged too, still same result. is it motherboard or bios related?
i have also tried reseating ram and cpu, pressing power button for 30s with no battery or charger plug-in, and clearing cmos battery.
Thank you for answering.
i have also tried reseating ram and cpu, pressing power button for 30s with no battery or charger plug-in, and clearing cmos battery.
Thank you for answering.
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