Question about Dell OPTIPLEX 320 (MH651) Motherboard
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Posted on Jan 02, 2017
SOURCE: black screen on start up
unplug the system
open the case
look for a battery and take it out
take out the memory (rams)
wait ten minutes
press power button 5 times
put everything back in
and boot it
Posted on Jan 12, 2008
it can be aproblem of.
1.vedio card (please use good card and check)
2.cpu(try to changing processor)
3.mother board(you have to replace)
Posted on Jan 15, 2009
SOURCE: Power on - blank (black) screen
Disconnect the monitor signal cable from PC and switch on your monitor. It should show some logo with Red, Green and Blue colors with a message similar to "No signal". If so, your monitor is working fine. Sometimes if the brightness and contrast is set to zero using controls present in the monitor, it will not show up anything. check wheather somebody set your monitor brightness and contrast to zero. If so incease them. As a last try connect to different PC and check before approaching a service center. I hope this will help you out. :)
Posted on Aug 21, 2009
Tips for a great answer:
A solid green light means the computer is operating normally.
A solid yellow light indicates the power supply is operating normally but the computer is not processing data.
This could mean there is a problem with the CPu or another component on the motherboard.
((A blinking yellow light indicates the power supply is receiving power from the wall, but not functioning properly.
This generally means the power supply itself is bad and should be tested or replaced.))
A blinking green light means the computer is in standby mode.
You should consider visiting Dell Support and downloading the manual for your
your Dell computer. So use the LED power light codes if your Dell computer has them.
hope this helps
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If the main power button LED is flashing or solid yellow, this could indicate a hardware problem.
Was it running good before?
Are the diagnostic LED lights all green?
Here is what dell says:
If the power light is blinking amber —
The computer is receiving electrical power, but an internal power problem might exist.
Do you remember what the BSOD said?
Oct 22, 2007 | Dell OptiPlex GX620 PC Desktop
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