Lenovo Thinkpad E540 Won't start [Solved/Closed]

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Hi,
My Lenovo laptop won't start. It cut out whilst in use and since then nothing can get the laptop to turn back on. When the power button is pressed nothing happens apart from the red LED turning on. The only way to get said LED to turn off is to remove any power supply. Help would be greatly appreciated, I've tried many methods and nothing has worked.

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Hello FlareSquared,

Welcome to the forum. Please, give me more information regarding whether the leds of the laptop are blinking or everything remains calm and nothing can be heard from neither the fan or the hard drive. My advice is to take out the hard drive/ if the laptop is out of warranty/ and to try to connect it to another computer through SATA-USB cable. If your hard drive spins up on a different computer and it is recognized there, but cannot power up on your laptop, then the problem is hiding probably in the power supply unit on your motherboard. While on another PC, I suggest you to make a backup of your files just in case.
While your lappy is open, you could try resetting the BIOS through the CMOS battery replacement. When you have the power cord and the laptop battery unplugged and if the laptop's warranty has expired, you can open the laptop and take out the CMOS battery. Leave it aside in order the electricity to discharge and then plug it back in. Try to start the laptop after that.

Hope this helps.
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Thank you so much! The cmos battery replacement fixed everything, you're a life saver
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I'm so glad that I helped! :)