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Will DVI to VGA adapter cause any signal degradation?


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11 replies to this topic

#1 skymaster191

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Posted 06 February 2011 - 02:24 PM

This is the video card I want to buy:

EVGA 01G-P3-1380-KR GeForce GTX 460 (Fermi)SSC+ 1GB 256-bit GDDR5 PCI Express 2.0 X 16, etc.

I have an older Compaq FS740 VGA, CRT monitor with 15-pin connector, and this video card does not have a Display Port . But it can be used with a DVI to VGA adapter. Will this setup cause any signal degradation, loss of picture quality or performance issues on older monitor when playing flight simulator software?

Edited by skymaster191, 06 February 2011 - 02:26 PM.


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#2 the_patriot11

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Posted 06 February 2011 - 02:56 PM

No, not with the adaptor. Your image quality isnt going to be as good as a good LCD monitor-its going to be the monitor thats going to limit your image quality, not the adaptor, digital is always better then analog.

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#3 skymaster191

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Posted 06 February 2011 - 05:18 PM

Ok, thanks for your input. One of these days, I'll upgrade to an LCD monitor. The picture improved on this old CRT monitor when I hooked up my new computer to it.

#4 caperjac

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Posted 06 February 2011 - 05:32 PM

i remember helping with a new build a few yrs back ,and a adapter like you are referring to stopped the computer from booting, wasn't until we hooked a lcd monitor that it would boot .could have been the quality of the adapter ,not sure

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#5 the_patriot11

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Posted 06 February 2011 - 05:44 PM

Ya you will notice a definite improvement, youll notice a better one when you upgrade to a LCD.

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#6 skymaster191

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Posted 06 February 2011 - 08:40 PM

Well, what does a decent LCD monitor cost?

#7 the_patriot11

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Posted 06 February 2011 - 11:29 PM

i remember helping with a new build a few yrs back ,and a adapter like you are referring to stopped the computer from booting, wasn't until we hooked a lcd monitor that it would boot .could have been the quality of the adapter ,not sure


You have to watch the adaptor, some adaptors are made only for a certain video card, if you put it on a different video card, the computer will boot but you won't get any signal to the screen, especially with the first DVI video cards to come out. Most universal adaptors do not have this issue and DVI is more standardized now so that problem is rare to non existent anymore.

As far as monitors, a lot depends on what resolution you want and the features, you can get a 18-20 inch around 100-125, Your better ones-especially for gaming are around 250 on up. Something like this would be a decent gaming monitor, (theres better out there but this is the happy medium Ive been able to find at a really good price) something like this would be a good all around monitor, not as good as the previous one but will do the trick, with something like this probably being among the top of the line monitors.

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Primary system: Motherboard: ASUS M4A89GTD PRO/USB3, Processor: AMD Phenom II x4 945, Memory: 16 gigs of Patriot G2 DDR3 1600, Video: AMD Sapphire Nitro R9 380, Storage: 1 WD 500 gig HD, 1 Hitachi 500 gig HD, and Power supply: Coolermaster 750 watt, OS: Windows 10 64 bit. 

Media Center: Motherboard: Gigabyte mp61p-S3, Processor: AMD Athlon 64 x2 6000+, Memory: 6 gigs Patriot DDR2 800, Video: Gigabyte GeForce GT730, Storage: 500 gig Hitachi, PSU: Seasonic M1211 620W full modular, OS: Windows 10.

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#8 dpunisher

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Posted 07 February 2011 - 12:05 AM

Ditto on Asus monitors. My wife got me a VE248 for Christmas, and I have no complaints.

As far as DVI-VGA, here is a connector guide with pics. I have gotten bit trying to run a VGA monitor from a DVI only video card. The adapter would plug in, but no pic out. Essentially, if you have the 4 pins around the wide spade connector on the DVI out connector, you are good to go as far as DVI-VGA. Some video cards are DVI only.

http://leveron.com/blarg/2009/11/graphics-cards-that-support-simple-dual-monitors/

EDIT: As far as image quality, there is no loss if using a DVI-VGA adapter as the video card is outputting the VGA signal all the time, and the adapter is simply channeling the outputs to the right pins. No actual lossy conversion is taking place.

Edited by dpunisher, 07 February 2011 - 12:15 AM.

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#9 skymaster191

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Posted 07 February 2011 - 12:43 PM

I was also looking at the ASUS monitors online this weekend. Good price and good reviews.
Which raises a couple questions.

I've always been leery about having any type of TV display or monitor shipped. Guess I'm concerned that rough handling could cause hidden damage during shipping. I've always bought this item in store. Have you guys had good results with shipping TV/monitors?

What do think of the monitors with integrated TV tuners?

#10 the_patriot11

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Posted 07 February 2011 - 02:59 PM

I've shipped several monitors via ups with no problem at all.if they are damaged you can just return it. If your to concerned about it you can purchase shippers insurance for it as far as monitors with built in tv input, well there's not much difference between a computer monitor and a tv other then the inputs it's designed to receive so one with tv inputs should work fine. For that matter you can just buy a nice flat screen tv with hdmi inputs and hook your computer up to that

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Primary system: Motherboard: ASUS M4A89GTD PRO/USB3, Processor: AMD Phenom II x4 945, Memory: 16 gigs of Patriot G2 DDR3 1600, Video: AMD Sapphire Nitro R9 380, Storage: 1 WD 500 gig HD, 1 Hitachi 500 gig HD, and Power supply: Coolermaster 750 watt, OS: Windows 10 64 bit. 

Media Center: Motherboard: Gigabyte mp61p-S3, Processor: AMD Athlon 64 x2 6000+, Memory: 6 gigs Patriot DDR2 800, Video: Gigabyte GeForce GT730, Storage: 500 gig Hitachi, PSU: Seasonic M1211 620W full modular, OS: Windows 10.

If I don't reply within 24 hours of your reply, feel free to send me a pm.


#11 skymaster191

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Posted 07 February 2011 - 04:23 PM

Cool. thanks for all your input.

I would love to use my Samsung LCD TV for both computer and TV. I already know it can be used as a PC monitor. But it only has one HDMI interface. I think I can use one of the other interfaces in the back.

Man, this will be cool if I can use my TV for dual purpose without having to switch out the HDMI cable from computer to DVD player

#12 caperjac

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Posted 07 February 2011 - 05:28 PM

http://sewelldirect.com/DVI-to-Component-Adapter-Cable-6ft.asp

you might be able to hook it with a dvi to video component adapter like the one in the above link

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