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December 15, 2011 10:23:24 PM

so i just finished building my first computer. it started up and installed windows succesfully. however, i don't think my graphics card is working. I have a PowerColor Radeon HD 6870 but when I do the Windows Experience Index test thing it gives my graphics a rating of 1.0/7.9. And it doesnt seem to be registering my card. But I have my monitor hooked up to the VGA port on my graphics card and i get the picture and everything on my monitor so it has to at least be working, right? I have 2 PCI-Express cables hooked up to my graphics card from my power supply and the graphics card is firmly in place on the motherboard. what could be wrong and how can i fix it? thanks

More about : quick answer

December 15, 2011 10:27:48 PM

Did you install the latest drivers?
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a b U Graphics card
December 15, 2011 10:34:29 PM

^yep
VGA port? Not DVI? Why?
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December 15, 2011 10:35:44 PM

ah, ill try installing the latest drivers. no internet right now though and no optical drive. and there is no dvi port on the back of my graphics card, i have an adapter on the vga though so its ok
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a c 88 U Graphics card
December 15, 2011 10:39:09 PM

You need the drivers for it to operate correctly , can you get a friend to download the latest drivers and put it on a usb stick/external HD for you and install it from that if you don't have an optical drive?
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a b U Graphics card
December 15, 2011 11:00:45 PM

No, that VGA is not OK. VGA is limited to a maximum of 640x480 resolution. What ports does it have? A 6870's gotta have some kind of modern port.
^+1 on the flash drive. Just download the drivers on whatever computer you're using now lol.
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December 16, 2011 12:34:49 AM

oh alright haha, ill go download the drivers now then on this computer. the 6870 has 2 VGA ports, an HDMI, and two labeled DP, although im not sure what those stand for (i know i should haha). My motherboard has a dvi output, if i use that to plug into my monitor will the graphics card still work or do i have to have my graphics card plugged in directly to my monitor? thanks for the fast replies! keep 'em coming!
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a b U Graphics card
December 16, 2011 12:36:28 AM

It must be plugged into the graphics card.
HDMI and DVI carry the same video signal. The only difference between them is that HDMI can carry sound as well. You can easily get hold of a DVI/HDMI adapter.
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December 16, 2011 1:09:46 AM

alright that's what ill try to do then. i noticed the highest resolution my monitor would go on was 1400x1050 when its suppose to run 1920x1080. i was wondering what was holding it back but im guessing its the vgi. thanks mate. downloading the driver for my gpu right now, gonna try installing it in a sec and ill see if that fixes that problem. then ill try to find a hdmi dvi adapter
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a b U Graphics card
December 16, 2011 1:15:34 AM

It won't fix the problem, as your cable physically cannot carry that resolution. The adapter should do it, though.
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December 16, 2011 1:17:58 AM

hmm well after i downloaded the latest driver the resolution automatically switched to 1920x1080 which wasnt even an option before. and the display is now crystal clear. i think i may have solved the problem or do you think it can get even clearer...
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a c 88 U Graphics card
December 16, 2011 1:18:06 AM

You a got a couple of optipons there with how to hook it up , get the adaptor needed for the connection you choose to go with , some cards come with the adaptors in the box, or pick one up from a electronics store or even ebay and they are cheap.
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December 16, 2011 1:22:37 AM

yes monsta, ive already got it hooked up one way, from vga through a dvi adapter to my monitor. the dvi adapter came in the box. but what kaj is saying is that by having it hooked up originally to a vga output, my resolution is limited because vga is worse than dvi or hdmi
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a c 88 U Graphics card
December 16, 2011 1:26:06 AM

Yup sorry I just realised what you did.LOL
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a b U Graphics card
December 16, 2011 1:45:37 AM

Does your card look like this? if so those 2 outward ports are dvi not vga. Could be wrong about yours, but something tells me vga is no longer an option on recent cards.

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a b U Graphics card
December 16, 2011 1:46:05 AM

oops double post.
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December 16, 2011 1:56:07 AM

bah i feel stupid, yes you are right boju. i have 2 dvi outputs on my graphics card. but my monitor only has a vga input. is it ok to convert from dvi to vga or will that limit my performance too?
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a b U Graphics card
December 16, 2011 2:29:16 AM

That will definitely limit the performance. VGA's the only port there is? Nothing else at all? You can get an adapter for just about any other recent port (component, etc).
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a b U Graphics card
December 16, 2011 7:21:42 AM

DMullane said:
bah i feel stupid, yes you are right boju. i have 2 dvi outputs on my graphics card. but my monitor only has a vga input. is it ok to convert from dvi to vga or will that limit my performance too?

Yes, its okay to convert. Video cards usually comes bundled with DVI to VGA converter. And it will not limit the performance. The VGA can handle up to 1920x1080. Higher than that & you have to go DVI or DP.
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a c 291 U Graphics card
December 16, 2011 8:54:08 AM

kajabla said:
No, that VGA is not OK. VGA is limited to a maximum of 640x480 resolution. What ports does it have? A 6870's gotta have some kind of modern port.
^+1 on the flash drive. Just download the drivers on whatever computer you're using now lol.


You're wrong. I've been using VGA cable on my old PC for 3 years at 1680x1050.

http://en.wikipedia.org/wiki/VGA_connector
Quote:
The same VGA cable can be used with a variety of supported VGA resolutions, ranging from 640×400px @70 Hz (24 MHz of signal bandwidth) to 1280×1024px @85 Hz (160 MHz) and up to 2048×1536px @85 Hz (388 MHz).
.
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December 16, 2011 2:32:47 PM

The 6870 has two DVI ports and one HDMI. There is a big difference between DVI and VGA as VGA is analog. However, HDMI is the same thing as DVI in terms of graphic output quality, except HDMI allows audio to be sent through the same cable (pretty useless for typical monitor speakers).
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a b U Graphics card
December 17, 2011 2:25:56 AM

^inb4
Oh. Thanks all. I'm edified.
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December 17, 2011 4:09:20 PM

alright so i kind of got mixed answers. is it ok to use a vga converter on my dvi output to connect it to my monitor or is that limiting my graphics performance as well? im getting 1920x1080 now.
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a c 291 U Graphics card
December 17, 2011 4:47:39 PM

It's ok.
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a b U Graphics card
December 17, 2011 7:45:27 PM

You'll be just fine using a converter DMullane. You'll notice hardly a difference using straight out dvi or dvi to vga at that resolution and your graphics card's performance will be unaffected.
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December 20, 2011 12:08:38 PM

kajabla said:
No, that VGA is not OK. VGA is limited to a maximum of 640x480 resolution. What ports does it have? A 6870's gotta have some kind of modern port.
^+1 on the flash drive. Just download the drivers on whatever computer you're using now lol.


VGA IS NOT limited to a 640x480 resolution. I'm using the VGA adapter on my 6850, and I'm gaming on a 1600x900 resolution.
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a b U Graphics card
December 20, 2011 9:39:48 PM

Yes, that's since been said. Foot in mouth.
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a b U Graphics card
December 20, 2011 10:21:39 PM

You can change the res. without Catalyst drivers... right click your desktop and click "screen resolution"... if your monitor supports 1920X1080 then change it here until Catalyst is installed.
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a c 291 U Graphics card
December 21, 2011 2:24:11 AM

russwood that's not the case with most cards. You cannot do it until the drivers are installed correctly.
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a b U Graphics card
December 21, 2011 3:28:26 AM

Sunius said:
russwood that's not the case with most cards. You cannot do it until the drivers are installed correctly.


Huh what? Windows installs drivers on it's own, setting the resolution through "Windows" is separate from Catalyst. In fact some people don't even use CCC and just use drivers Windows downloads and installs.

In case you aren't aware CCC isn't the end all, be all of AMD cards. Clocks, fan control, voltage, etc. is in the specific GPU's ROM and will manage itself. Saying this, the resolution CAN be changed via desktop...

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a c 291 U Graphics card
December 21, 2011 10:42:30 AM

I never you couldn't change it. I am just saying that certain resolutions will not be available until the drivers are installed. Happened to be multiple times in the past, especially with my old 1680x1050 monitor; the highest I could set via desktop without drivers would usually be 1280x1024.
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