No signal between monitor U2410 and XPS 430 Tower

Problem occurred Wednesday while the computer was unattended.  Was OK earlier in the day.

I worked my way through most of the basic checks.

Power was turned off for long periods between controls

Tried to restart after the power button / stop on tour in for 20 seconds more to clear.

Confirmed monitor is by linking them to a laptop.

Changed the monitor and Tower power cables.

Tried all 4 combinations of outputs DVI monitor video card round entered

I tried VGA connection

Video card off sprinkled inside and removed and reinstall

Run desktop with side panel removed to check the graphics card fan works.

Power unit, processor and card fan also cleaned and seen to work.

Power is what is happening

Monitor power light initially blue change to orange and no message from the monitor signal.

Tour shortly shows blue cylindrical LED on top that turns off after a few seconds.

Start button / stop remains blue.

There are no beeps.

Try now the F12 key I got fed up.  No reaction and no light on the keyboard

Ideas please

Just to complete this thread, the solution was a perimeter replacing the graphics card, a 512 MB ATI Radeon HD4670 GRA.

Tags: Dell Desktop

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