The computer reboots after many times before it can boot properly.

Computer malfunction: After starting the computer, the CPU fan rotation, the hard drive can start normally, but not self-test, the screen is not displayed, more than a few times the machine will return to normal, but after a few days or reboot will appear after the phenomenon, I replaced the power but can not solve the fault.

Troubleshooting: After starting the computer, the CPU fan rotation, hard drive rotation can start normally, but the screen does not show, which indicates that your motherboard has a problem.

There are several ways to address this type of problem:

1. Check your memory and motherboard contact is not bad, remove the memory to reinstall again, it is possible to solve the problem.

2. Check your video card and motherboard interface connection is tight, there are CPU socket pins and motherboard contact is bad.

3. The motherboard itself has a quality problem or mechanical failure, it is recommended that you send to a professional repair point in time for maintenance, so as to avoid other hardware damage caused by the motherboard failure.