my computer just keeps turning itself off?

it could also be a lack of wattage on the powersupply , but only if its a high-end graphiccard which most of the time use a 6pin powerconnector..
Sometimes it has enough power to work on normal applications but if its stressed it will consume more watts.. which can lead to the pc restarting and eventualy damage the pws.

jgc
May 2010

I don't know but if it always happens on one particular application then either there's a very weird software incompatibility or (I include this because it's happend to my son's machine) if you have a high specification graphics card it may be overheating - could be it's been wound up too fast or that the cooling fan is starting to fail - you can inspect the fan with a mirror with the side panel removed.

The RAM and the Hard Disk are very unlikely to be the cause of your problem provided that you have enough space available to meet the minimum requirements of the application - check the small print.

Good luck...

Peccavi
May 2010