50: Monitor host connectivity, the host is no problem, the normal operation, but the screen …

host no problem? feel like the board is the problem ah.screen display for the power that is not signaling.
Keyboard and mouse are not bright, the board will be no problem? Speak on the issue of multi-board graphics memory power! Ha ha have a relationship! Re-installed, or fiddle with his fiddle! Host power supply problem? Run into similar problems are likely to static electricity board, you try to Qing CMOS, is the discharge board, and then re-enter the system BIOS to set the keyboard, mouse are bad, also hosts regular work?

You go to the dealer to see if there is the motherboard, power supply problems, first of all, first unplug the power cord.By more than 20 years under the boot keyboard.
Re-boot if you plug in the power of the boot that is on the board of COMS problems.
If not bright.
Boot when it heard the “drop” of a sound.If you did not hear.On the main board is due to the problem.Motherboard repair it.
If the boot Time to hear the sound of DDD.Should not play a good memory.
If the boot a long time to hear the sound of three short.Should not play a good graphics card or the issue of