Question about Computers & Internet
1) No. The switch color should have been Green
2) No Signal on the monitor, indicates the monitor is not receiving a Video Signal from the computer.
A) Could be due to a faulty monitor cable.
Monitor cable is used on a working computer for a test,
working computer's monitor cable is used on the Advent for a test.
B) Could be due to the graphics 'engine' on the motherboard, or on the graphics card is bad.
Graphics Processing Unit.
If the computer is using Integrated Graphics, the GPU is on the motherboard.
(Integrated Graphics is also referred to as OnBoard Graphics. Meaning On the motherBoard)
You will know if it's Integrated Graphics, because the monitor cable will be plugged into the VGA connector, on the motherboard
Since you indicate an adapter was included, to adapt to a different port (Connector), it could be a VGA to DVI adapter, or a DVI to VGA adapter.
Your monitor may just have a VGA connector on the monitor cable.
Hence you would use a female VGA to Male DVI adapter.
Your monitor may be an LCD flat screen monitor, and has a DVI connector on the monitor cable.
Hence you would use a female DVI to Male VGA adapter.
Digital Visual Interface
VGA monitors are Analog.
LCD monitors are Digital.
A computer puts out a digital signal.
If a VGA monitor is used, the computer has to alter the Digital signal to an Analog one.
This slows down the video signal.
If your monitor (In any case. Not just this one), is an LCD flat screen monitor, it is best to use a DVI monitor cable, and plug into a DVI port on the computer, if available.
If your monitor is a VGA (CRT. Cathode Ray Tube), monitor, and you have a DVI connection on your computer, using the adapter will do you no good.
The adapter just uses the contact pins for VGA, that are present in that DVI adapter, and hence the DVI connection on the computer.
You're still just getting an Analog VGA signal.
Example of a female VGA to male DVI adapter,
If the Integrated Graphics are suspected to be bad, a graphics card is used in the appropriate expansion slot, for a test.
If the graphics work then, the graphics card is left in service.
After I test the monitor cable my next procedure is to suspect the Power On switch, or the Power Supply, and go to the graphics next.
The reasoning is that Power Supply failure, is the number one cause of computer failure.
The next is the Power On switch, then Electrolytic Capacitors used on the motherboard.
(Specifically, any Electrolytic Capacitors used in the motherboard Voltage Regulator Circuit)
If the Power On switch is bypassed, the diagnosis will reveal if the problem is the switch, or Power Supply.
Bypass the Power On switch, and the Power Supply comes on?
Problem is the Power On switch.
[One Power On switch I have found to fit a lot of computers. The Power On switch goes into the plastic Power On button,
Bypass the Power On switch, and the Power Supply does Not come on?
The problem is the Power Supply.
The Power On switch is bypassed using a jumper wire, from the green Soft Power On wire, to ANY black Ground wire. The contact made is a brief momentary one.
The jumper wire is used at the back, of the 20, or 24-pin ATX main power cable connector.
To be continued in an additional Comment.
Posted on Jun 05, 2010
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Posted on Jan 02, 2017
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