hello there i seem to be getting blue screen of death after a period of time of using my computer then after i get it once i will get it after every 5 minutes.
But then i leave it for a day and it lasts a while before another BSOD
Going by your description it could be heat related. One or more of the components is not functioning when it gets hot or overheats. A good start is to clean out the internals of your case. If the internals are clean running memtest would be the next step http://www.memtest.org/