my computer seems to turn off randomly i leave it on constantly it could be running fine for 3 or 4 days and it will happen again. just today i was on it and was on you tube and it turned off on it happens pretty frequently. when it turns off it will not turn back on. i will have to unplug the power cable and plug it back in a few times before anything will turn on. which makes me think its the power supply. so i was looking online and found that the memory could cause the same problem so i got the memtester program and ran it and within 10 min i got 4 errors. so i swapped the memory into the computer im using now and ran the program again and got no errors after 1 hour. so do you think that it could be the power supply that is causing this or my motherboard memory sockets?