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25 pin DVI female - male 29 pin monitor?


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#1 captainjang

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Posted 28 February 2011 - 08:26 PM

My current computer has both DVI and VGA ports and I already have the VGA port connected to one of my monitors and I want to have a dual screen. My other monitor has a VGA port and need to get an adapter for it. I was looking around and saw many but almost all of them were 29 pin males and I have a 25 pin female. I can't seem to find any 25 pin males, if there are any. How would I go on doing this?

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#2 Platypus

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Posted 28 February 2011 - 08:59 PM

Compare the DVI connectors shown on wikipedia:

http://en.wikipedia.org/wiki/Digital_Visual_Interface

It sounds to me like your DVI out connector is DVI-D (Dual Link) which does not have the four analog pins which surround the shielding prong. That would mean if you're already using the discrete VGA output, a second monitor will have to have digital input, DVI or HDMI.

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#3 captainjang

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Posted 28 February 2011 - 09:53 PM

Compare the DVI connectors shown on wikipedia:

http://en.wikipedia.org/wiki/Digital_Visual_Interface

It sounds to me like your DVI out connector is DVI-D (Dual Link) which does not have the four analog pins which surround the shielding prong. That would mean if you're already using the discrete VGA output, a second monitor will have to have digital input, DVI or HDMI.


What about using an adapter?

#4 Platypus

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Posted 28 February 2011 - 11:07 PM

You can get them but unfortunately the digital to analog converter to take the DVI signal to VGA is likely to make it cost much the same as a basic monitor with DVI or HDMI.

Did you confirm that the connector is definitely DVI-D? I'm just working from the pin count to pick it as the likely one you were describing.

Edited by Platypus, 28 February 2011 - 11:08 PM.

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