Why is my PC shutting down randomly?

iko22 said:

Unfortunately the message does not say what caused the Error,

Lets try a different tact, is the Motherboard BIOS Firmware up-to-date? You can check the Firmware version using System Info.

Hi there, you can see my BIOS version in the picture attached.
I went to the Intel page but support for this mobo is discontinued.

I had a BIOS downloaded but I am not sure if it is the latest,.
This is the name of the file: BLH6710H.86A.0160.EB

Thanks a lot

Hi,
It looks as though Intel have discontinued support for their older devices: Intel to remove old drivers and BIOS updates from its site by the end of the week | ZDNet

You can, however, find a download for Intel DH67BL Desktop Board BIOS 0163 at Softpedia. The page contains the Intel instructions, and at the bottom of page, is the download tab. The site is reliable enough.

iko22 said:

Hi,
It looks as though Intel have discontinued support for their older devices: Intel to remove old drivers and BIOS updates from its site by the end of the week | ZDNet

You can, however, find a download for Intel DH67BL Desktop Board BIOS 0163 at Softpedia. The page contains the Intel instructions, and at the bottom of page, is the download tab. The site is reliable enough.

This is DONE!

Thanks a lot.
Now I'll watch how it behaves!

Ups, same behavior, computer inmediately self restarted on first boot. And now it did it again

What would be next?

How old is the power supply? Could be that, but I'm not sure.

Something else it could be is a malfunctioning power button that might trigger a shutdown Could even be the restart button. Investigate that.

What I would do is reconnect the headers. Then if the problem still exists, try to jump th board manually by shorting the green PSU wire with a black PSU wire. This is starting the computer without the power button. But pull the power button cable first so you can see if it is the power button connection or the reset button connection.

Read here on manually staring a motherboard.

How to Jump a Motherboard Without a PWR_SW Button | GamersNexus - Gaming PC Builds & Hardware Benchmarks

How to Jump a PSU | bit-tech.net

try a different power supply unit similar to the existing one.
if no improvement, it could be the motherboard is showing signs of age and some components on the board are failing and may soon need a board replacement

Try the basic first.
Open a CMD window as administrator and type:
chkdsk c: /f
It will say your disk is in use and if you want to schedule to next start = Yes
Restart
Back to windows, open a CMD window as administrator and type:
SFC /scannow
Report