Hello, I have a dell xps 410 that randomly freezes and I have to manually shut the computer down then it won't load windows back up, when I hit the power button I hear the fans run and the light flashes green but it will not boot up right away I have to wait about 5 mins then it will boot up and I can use it for awhile before it freezes again, I have tried running memory test but they require restart and since the computer will not restart right away they can't finish is there anything else I can try?