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My new build only boots with DVI port connected to the GPU instead of my usual VGA?

Last response: in Graphics & Displays
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July 17, 2013 12:19:12 PM

I had trouble booting the new build so I tried uninstalling the gpu, and it went into BIOS fine, I put GPU back in with VGA (on mobo port) and nothing appears on screen. GPU case came with VGA to DVI adapter (HISqRadeon 7870 2gb) and I tried that on and the monitor reached BIOS and it was fine.
Question is, will the DVI port hurt the graphics on my monitor, its an HP 1680x1050 60hz, and will it show that rather pixelated screen because of the DVI adapter?

Will installing the latest drivers solve this problem or is there another option for connecting tower to monitor?

GPU: Radeon 7870 2gb HIS
mobo: MSI z87 G41
i5 4670k

thanks much
ps still have to install win8 soon
July 17, 2013 12:24:03 PM

No issues with it its. Nothing to worry
Just run it as it is
I also ran my pc in the same way like u r running now till 6 months until a monitor upgrade didnt have any sort of problem


Hope it helped


Dont forget to close the post by selecting best solution
We appreciate it
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July 17, 2013 12:31:30 PM

Since you have a discrete graphics card you should always plug the monitor(s) into the graphics card's port(s) - not the motherboard's port.

At least one of the graphics card's DVI ports is actually a DVI-I port. That's the port you have your adapter plugged into. A DVI-I port carries both a digital signal (DVI) and an analog signal (VGA). Using the DVI->VGA adapter won't affect your signal quality - the signal is not being "converted", it is only being "passed-through" the adapter. DVI-I ports are simply a way to maintain backwards compatibility with VGA monitors like yours by using an adapter. So you are fine and shouldn't have any worries! Have fun!
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July 17, 2013 12:37:21 PM

the DVI to VGA adapter just allows for a different style cable to be attached to the GPU port. The signal sent to the monitor will not hurt the monitor in the slightest so no need to worry about hurting the monitor. The biggest difference in the signal is the type of signal the monitor receives. DVI port sends a digital signal to the monitor and the VGA sends an analog signal. Using the adapter just allows the cable to connect to the DVI pins that transmit an analog signal.

"will the picture be pixelated?" No because the the signal will be sent as an analog signal to the monitor and that is what that port on the monitor needs for a signal. As for the resolution you should be fine.

Doesn't your monitor have a DVI port to connect a DVI cable to? Most 1680x1050 monitors have a DVI port.
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July 17, 2013 12:48:15 PM

bgunner said:
the DVI to VGA adapter just allows for a different style cable to be attached to the GPU port. The signal sent to the monitor will not hurt the monitor in the slightest so no need to worry about hurting the monitor. The biggest difference in the signal is the type of signal the monitor receives. DVI port sends a digital signal to the monitor and the VGA sends an analog signal. Using the adapter just allows the cable to connect to the DVI pins that transmit an analog signal.

"will the picture be pixelated?" No because the the signal will be sent as an analog signal to the monitor and that is what that port on the monitor needs for a signal. As for the resolution you should be fine.

Doesn't your monitor have a DVI port to connect a DVI cable to? Most 1680x1050 monitors have a DVI port.


It Does, but the monitor is so old that the 4 new pins on the side of dvi dont fit into my dvi port b.c it doesnt have opening for them. Would a DVI to DVI connection be better than the one I have now? (DVIadapter-VGA to VGA on monitor)?

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July 17, 2013 12:55:04 PM

Yeah definately a dvi to dvi would be better get a dvi cable and connect ur monitor
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July 17, 2013 12:58:51 PM

If you want to use the DVI port on the monitor you should look for a cable that doesn't have those 4 extra pins. I know exactly what pins you are referring to and have run across the same issue in the past. They do still make the cable needed but it requires a visual inspection to make sure it is the cable you need.

Yes a DVI to DVI connection will be a better quality signal due to it being a digital signal. Most of the time you would not be able to tell the difference in quality but If your monitor has HDCP capability then you should use the DVI as some copy righted material, like some movies as an example, wont play with a VGA cable connected.
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July 17, 2013 1:04:12 PM

To be accurate get a dvi-d to dvi cable
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