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Computer turns on but the OS won't boot

March 2015


Issue

I've had my desktop computer for about one year now. It is an Acer Aspire E380. On Saturday afternoon, it was going a bit slow so I decided to restart it. However, once it turned off, it will no longer turn on and boot up.

The power button usually lights up, but now it does not. But, the decorative words "Aspire" at the bottom of the tower still lights up. The DVD drive still opens, and a few lights blink on start up as usual.

The screen is blank. All of the fans seem to go, except for one. It is the one in the center of the computer on top of a group of metal prongs. It spins upon power up but stops. The power supply fan runs, the other fan runs too.

I have made sure everything is plugged in, and tried plugging it into different outlets. I can't boot from a CD, the keyboard doesn't turn on and neither does the mouse.

As far as starting up goes, everything sounds normal. No beeps or clicks to hint at hard-drive failure. Sometimes when I try to start it up nothing comes on but the center fan on the metal prongs (the one that would run for only a few seconds) goes on full blast until I turn it off.

If everything seems to be going, what is stopping it from booting up?

Solution

NOTE: Before making any attempt to remove or replace any part inside the casing, ensure that the power is off.
  • Well, the first thing that might be causing this is your memory card (RAM). Try to remove it and place it in another memory slot on the motherboard.
  • To be sure if your motherboard is still in good working condition, remove the memory card and power on the PC.
  • You should hear continuous beep sounds.
  • If you hear this then your motherboard is fine.
  • If placing the memory card in another slot does not work then the problem lies with the memory card itself. You will need to replace it.
  • It could also be that some faulting PCI cards are causing this error.
  • Try to remove your PCI cards. Normally a faulting PCI modem causes this type of error. Remove it and then power on the pc.
  • The processor cannot be faulty but still if you want to check it, remove the CPU Cooler fan. Then turn on the PC.
  • Place your finger on the processor for 2 seconds. You should find the processor heating up. Then turn it off immediately. If this works then your processor is good.


Remember not to leave it ON for more than 5 secs.

Note

Thanks to DJ AKSHAY for this tip on the forum.
For unlimited offline reading, you can download this article for free in PDF format:
Computer-turns-on-but-the-os-won-t-boot.pdf

See also

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Published by jak58 - Latest update by Jeff
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