What is wrong with my system?!?

Mysteryman2

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Jun 14, 2013
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I have a very dead PC and am hoping someone can suggest where problem lies.

It is a tower PC running windows 10.

I have been using it all morning and it has been fine, went for lunch and, when I got back, it said it wasn't connected to a network. Tried switching the home plug off/on, but, no change. So, switched off PC and now it won't start up!

On pressing the power switch, there is a beep after a couple of seconds then the only thing displayed on monitor is a short line, like a hyphen, towards top left of screen. And that's it.....no chance to get into motherboard setup or anything

Can anone help, please? .
 
If the system powers on and boots, but gets the the point of checking for a boot able drive or partition on a hard disk drive.
If it cannot find or see the hard drive, not detected.

You will see in most cases a white underscore symbol that flashes or pulses on screen to the top left.

It mean either the boot partition of the drive has become corrupted, or un readable.
Or the drive has failed.

The power to the drive is loose.
Or the Sata data cable from the drive needs to be checked or replaced.

To verify if the drive is still present, try pressing the key to enter the bios of the motherboard.
While you are in there check that the bios of the motherboard has not factory defaulted for some reason such as a flat cmos battery.

You will be able to tell because the time, date and the year set up will not be correct.
If so you need to replace the cmos battery on the motherboard with a new one to retain saved bios settings.

Check that the Sata interface mode also has not changed.
Normal setting is AHCI mode.

Save any changes made before you exit the bios and on the next restart see if the hard drive is detected and windows os boot`s.


 

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