What is the automatic shutdown causes

Sometimes the computer to open all day all right, and sometimes opened less than two minutes on the automatic shutdown, I have seen graphics and some loose card is loose or what?? / Under the ask

loose graphics should be automatic Kai from the card will not be the automatic shutdown will not loose it is the automatic shutdown

poisoning?

power?

overheating computer? 1:CPU temperature is too high, automatic power-off protection;
2:inadequate power supply;
3:motherboard chip job insecurity.brain automatically There are several local causes:
1.Cooling bad.Because of weather or temperature of the CPU fan rotation caused by the lack of hot, which would result in automatic shutdown of the computer, look at the proposal System temperature is normal.
2.Causes of memory.When the memory loose contact with the motherboard slot also likely to cause the computer automatically shut down, the proposed check whether the memory board and play tight.
3.Power supply problems.The power for Is also a shortage of electricity caused by the computer automatically shut down an important factor.
4.Software factors.Because of a virus or a Trojan horse caused by the computer shutdown also can be found everywhere, particularly in the recent wave of the epidemic, in the virus and then it would lead to System shutdown and restart.If you are using Windows 2000 or Windows XP systems, we recommend that you use antivirus software antivirus stamp in a timely manner after the shock of the patch, the general problem can be solved.
Graphics and loosening of the common Consequences for:
1, is not bright
2, Hua Ping
3, automatic shutdown
4, burnt graphics
5, the other original burned