It is definitely not the OS installation. I did find bad clusters on my HDD, however, replacing it with a new one did not mend the above issues.
The computer will power off during the following circumstances
- When i put in a CD/DVD before boot (sometimes, at other times it continues)
- When I plug in an external, USB-powered HDD to the computer (however, not when I plug in an HDD with an external power supply)
- Sometimes when booting up
- Inside the OS if boot is succesfull, after some time of use (not in safe mode though, for some reason)
Since i could not install an OS on the new HDD from the installation DVD(either it powers of when I put in the DVD, or when it loads the installation, and if all of that has passed it will crash during installation), I had to put it on an external hdd from which I managed to install it. The above issues persist, and the computer will also power off if:
- The CD/DVD unit is used in the OS
- I try to use an external, USB-powered HDD in the OS
And again, inside the OS after some time of use.
It is not the OS then, not the HDD, not the temperatures (which Ive checked), not the RAM sticks (ive tested them). I am thinking maybe it has something to do with the Power Supply... but why then, will it work in safe mode (or if i pull out the RAM sticks and power it up, nothing will cause a shutdown before BIOS screen has appeared)?
My worst suspicion is a BIOS malfunction or malware
. Is there some way I can wipe the BIOS and reflash it completely?
Or what else may it be?
P.S. I think the thread can be moved from the OS section.