Repeatedly shuts down at various (random) stages during and after start up. Acts differently each time. Sometimes screen goes black, sometimes it turns gray color, sometimes it simply freezes where it is. ........
Computer does not boot up The problem maybe the RAM, it is faulty or just needs reseating to make proper electrical contact.
Reseat the RAM and then boot up your laptop. If it still does not boot up then remove the RAM module/s and take them to your friendly computer repair shop and get them to test the RAM for you. Just like you sometimes need a mechanic to repair your car, sometimes you do need a technician to diagnose and identify the fault or faults on your computer. Not only does a good service technican have the experience to deal with this type of problem, they also have the equipment that allows them to look at things the average computer user can't see, and he has a collection of replacement parts that can be used to quickly test individual components on your computer.
SOURCE: Aspire 5315: Loud, Long, High Pitch Beep During Start Up
you need to replace the memory..or try to make clean using a Paper Eraser for make a clean the memory..clean the all pin connectors..good luck
SOURCE: My laptop freezes with jagged diag lines showing on the monitor
try to re-install your video driver to its latest version.
SOURCE: keyboard locks randomly after login
Sound like you might have a virus - try running antivirus program - such as Avast or Antivir - which is free.
If that doesn't work, then try doing a System Restore - if that doesn't work, then do a System Recovery complete re-install - but back up your pictures and documents first as you will lose everything and you'll be starting over again fresh.
Fred
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