No HDMI video out from graphics card, but works from mobo

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tristan.ahouse

May 10, 2018
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I've recently been having video output issues with my PC, so I tried switching monitors and from DVI to HDMI. The new HDMI cord works if plugged into the motherboard, but when I plug it into the graphics card I don't get any video out. The new monitor I'm trying is a TV, not sure if that changes anything. Any idea what the problem could be?
 
Solution
Danra
The button to press [continually after you turn the computer on] will be listed in your motherboard manual. Or you could google it.

Also, the function tables in the manual for BIOS or UEFI, that will tell you what screen you will have to look at to make sure the motherboard is set to pick up the video card, PCIe in the first slot [on the motherboard].

I also my be that you will have to use the function keys for the monitor to make sure you have the proper input signal. That is especially true if the monitor has more than one HDMI input, and you may have one HDMI port specifically to be used for something else other than a computer.

It should be labeled on the back of the screen near the HDMI ports. You may have to google your...
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miningshark23

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Nov 23, 2014
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Are you sure the GPU is working properly? Are the fans turning on, is it being recognised in device manager etc. Is it a new GPU? The GPU is most likely where the problem lies rather than within your monitor. Is it installed correctly?
 
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tristan.ahouse

May 10, 2018
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Fans turn on, DVI out had been working for a long time from the GPU. No visible change or movement of the case before it stopped working.
 
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maxtechniche

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May 10, 2018
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MERGED QUESTION
Question from tristan.ahouse : "No output when HDMI plugged into video card, only works when plugged into mobo"



You could look in your UEFI/BIOS settings and make sure output is set to Card/PCIe.
 
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tristan.ahouse

May 10, 2018
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How can I get to those settings? Also, if it doesn't work with that, would I be able to change it back without being able to view the screen?
 
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Danra

Danra

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May 25, 2005
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The button to press [continually after you turn the computer on] will be listed in your motherboard manual. Or you could google it.

Also, the function tables in the manual for BIOS or UEFI, that will tell you what screen you will have to look at to make sure the motherboard is set to pick up the video card, PCIe in the first slot [on the motherboard].

I also my be that you will have to use the function keys for the monitor to make sure you have the proper input signal. That is especially true if the monitor has more than one HDMI input, and you may have one HDMI port specifically to be used for something else other than a computer.

It should be labeled on the back of the screen near the HDMI ports. You may have to google your screen to determine what each HDMI port is used for.

 
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