When the computer is turned on, the alarm is ringing.
4, there may be a hard disk because some hard drive boot is also very loud if it is the reason, then your machine is normal simply do not have to do any inspection.
3, if it is still possible that the CPU fan may be due to a long time without a computer so the parts will be a certain problem to do a comprehensive inspection is necessary.
2, if there is no good, then there may be your memory of the cheat oxidation of the eraser can be a bit of this is because your machine for a long time do not have the reason.
1. The memory module is not plugged in and then re-plug it.
