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My graphics card wont work

Last response: in Graphics & Displays
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August 10, 2012 7:48:38 AM

Hello,
I just got an ati radeon hd 4850 and a new 500 watt power supply to run it. I installed both of them and turned on my computer everything ran but the screen stayed black and the computer didnt boot up. i meet al the requirements to run the thing, ive googed everything i can think of, asked everyone i know, and now im asking the internet. help me out please if this doesnt work im gonna have to take my computer to someone who knows what there doing.
a c 291 U Graphics card
August 10, 2012 1:55:15 PM

Did you plug the 6-pin connector from your power supply to your graphics card?

Are you connecting your monitor to the motherboard or the graphics card?
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August 10, 2012 5:55:40 PM

i think its a 6+2 pin connector also it doesnt matter where I plug the monitor in it doesn't work
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a c 191 U Graphics card
August 10, 2012 6:03:09 PM

What power supply did you get? Did you plug everything in correctly? Make sure you plugged in the power cable to the graphics card like so:



You need to plug the thing in the bottom picture into the card.

If you did that and it still doesnt work, I'd like to know the model of the power supply.
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August 10, 2012 6:13:50 PM

its a rocketfish 500 watt power supply
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a c 191 U Graphics card
August 10, 2012 6:24:43 PM

This is why we dont buy power supplies from BestBuy. Rocketfish makes some of the worst power supplies on the market. I tried to look up how much power it puts out in terms of amps, but under specifications for the power supply, all I could find is the dimensions, which is flat out embarrassing.

Its made by Huntkey. I wouldnt trust it to run anything in my computer.

But seeing as you probably already have it, you are kinda stuck with it for now. I can't find any specifications on it, would you be willing to tell me what the side label says under 12V rail? It might not be enough to run the card.
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August 10, 2012 6:27:27 PM

its got two rails and says 18A under both max watt is 432w
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a c 191 U Graphics card
August 10, 2012 6:31:20 PM

If that Rocketfish is 80+ certified, it is a newer one and may be okay. If not, be advised that HardwareSecrets tested a number of Rocketfish PSUs, and most if not all of them died violently under load. A quality modern PSU has full range active PFC (no little voltage switch) and some level of 80+ certification; it isn't the efficiency so much as that it was tested at 100% of its label and didn't die. Seasonic, Antec, Corsair, XFX, Enermax/LEPA, and FSP are among the better brands.

Edit: Also, make sure you plugged in the CPU power cable.
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August 10, 2012 6:33:54 PM

it says 80+ on the side
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a c 191 U Graphics card
August 10, 2012 6:39:29 PM

That's a relief. You're probably safe then. The last couple they've tested were ok.
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a c 191 U Graphics card
August 10, 2012 6:42:51 PM

Can you give us a better description of the issue? Like does the computer stay on when you turn it on?
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August 10, 2012 6:49:00 PM

computer turns on all the fans start running and when i hit control alt delete you can hear it start doing stuff. just the monitor stays black non of the usb ports get power and theres no beep that you normaly hear when you boot it up
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a c 133 U Graphics card
August 10, 2012 7:00:31 PM

Turn the system off and plug the monitor back into the onboard video, tun it on and enter the bios look for an option for primary video adapter and change it to pci express graphics(peg), save changes and exit. Now plug the monitor into the new card.
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August 10, 2012 7:19:24 PM

I don't know much bout computers what's the difference between CMOS and BIOS
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a c 133 U Graphics card
August 10, 2012 7:24:49 PM

CMOS is the hardware that the BIOS is stored on.
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August 10, 2012 7:32:10 PM

My old card was pci-e so it was already set to that
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a c 191 U Graphics card
August 10, 2012 8:08:26 PM

It might have reset itself when the new card was put in, so its worth a shot anyway.
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August 10, 2012 8:17:07 PM

I can't access bios when my new card is in the computer
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a c 191 U Graphics card
August 10, 2012 8:47:00 PM

Well try the motherboard video when the graphics card is in. That would be a clear sign that the motherboard graphics needs to be disabled.
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a c 291 U Graphics card
August 10, 2012 10:17:48 PM

Could you post a list of all the power connectors you connected from the power supply to anything in your PC?
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August 13, 2012 5:01:08 AM

I got all the stuff plugged into my motherboard I'm supposed to one going to my disc drive another going to my HDD and one cable plugged into the pci-e slot on the power supply but it's not currently connected anything
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a c 191 U Graphics card
August 13, 2012 7:21:32 PM

Well the one on the PCI-E slot has to go into the graphics card like I said above in the pictures.
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August 14, 2012 3:31:25 AM

The I tried that does it matter that it a 6+2 connector
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a c 191 U Graphics card
August 14, 2012 3:39:30 AM

No it shouldnt matter.
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August 14, 2012 3:59:14 AM

It might be a driver issue
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a c 191 U Graphics card
August 14, 2012 4:19:57 AM

It could be.
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August 14, 2012 8:02:28 PM

How do you install a driver for something that's not in the computer
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a c 191 U Graphics card
August 15, 2012 6:13:38 AM

Well you've got to get it to work first. Try it in another computer first like a friends computer.
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September 4, 2012 5:37:44 PM

Deemo13 said:
What power supply did you get? Did you plug everything in correctly? Make sure you plugged in the power cable to the graphics card like so:
http://www.legitreviews.com/images/reviews/730/sapphire_radeon4850_power.jpg
http://www.hardcore-games.tk/images/psu/pcie6.jpeg

You need to plug the thing in the bottom picture into the card.

If you did that and it still doesnt work, I'd like to know the model of the power supply.



actually the problem is still going even when i tried higher performance power supply .... and i changed the hard disk too !
but my AMd dont work on the mother board i would like to know what version of mother baords are compatiable to the AMD because i cant change the VGA and its more easy to change and renew the mother baord sure because its intel impire production ! so i would like to know if you have a mother board version that can be support and compact with the AMd cards !
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!