Hey Guys. I have an Acer Aspire 5742 I5-480M laptop and when I turn it off, it doesn't want to turn on again, for a few hours . When connected to the power supply, it charges the laptop and works very well like for hours even on battery it works pretty well for hours normally but when i shut down or even hibernate it doesn't turn on for next few hours ,
I really don't know what to do. Every time it does that, I have to wait a long time to be able to turn it on again. I have tried the so-called "power reset" (remove the battery and press the power button for 30 secs or so), but i have to do it every time to open it again :( , sometimes i just have to hold the power button for 10 sec and it turns on , ( without any battery removal or anything) The only problem is when i turn it off it doesn't open for next 5-6 hours no matter what i do .
If the laptop is connected to the power supply, the power led is not showing any sign
when i connect battery led shows charging indication and even battery gets fully charged.
i have reset the CMOS & RAM , even formatted my c drive and reinstalled windows still the same problem exists .
I would say that you are facing a hardware issue. Most probably your laptop is overheating and needs to lower the temperature before turning back on. Could you check PC temperature the next time you are able to boot? If the cooling fans are not running as expected, the temperature may get high quickly.
The problem is that if you are facing overheating, the PC should turn itself off when temperature gets really high. So, if it is not overheating there may be a power button issue or a motherboard problem. In order to investigate the issue further, you may need to seek help from a technician.