Why is my laptop not turning on?
When I plug in the CA adapter, and press the power button, nothing happens. There are no LED lights, the fan does not turn on, no noises from the hard drive, nothing. The AC adapter appears to be good, it gets the required voltage to the motherboard. Voltage checks on the motherboard show CPU 19.5V, power button 3.34. I have tried removing hdd, ram, resetting the bios and checking the CMOS, and each time trying to power the laptop up, still no joy. I do not have the schematic diagram. How do I proceed to fix this problem?
Bu iyi bir soru mu?
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What happened before this problem arose? Was everything working fine?
mike tarafından
Yes Mike everything was working just fine. Powered down before going to sleep, and then next morning the laptop just failed to turn on. I have noticed though that when I put the battery back on. the charging light comes on.
Fordi Dhliwayo tarafından
@fordi Yeah check the battery health in ePSA. My old E6540 did something like that when the pack started to wear, but it booted with multiple attempts. My E6440 is fine so far, though - but it's NX31D battery is almost as tired and may do it soon.
F12>Diagnostics.
Nick tarafından
Thank you Nick for your suggestion. However, the challenge is the laptop does not run long enough to get into bios or activate diagnostics via the Fn keys. The screen is blank, no fan spinning, nothing.
Fordi Dhliwayo tarafından
@fordi
You may have seen this site already with tear down videos:
https://www.parts-people.com/blog/2016/0...
mike tarafından
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