Problem with 4850 in new build

[Kasie23]

I recently built the system shown below and the graphics card (XFX Radeon HD 4850) isn't working properly. When I play a dvd the image is blocky and flickers. I also get a flickering screen in the Sims 2.

When installing the card, I used drivers from the XFX website rather than the accompanying cd. Currently I have CCC 9.3 installed.

I really don't know what to do or how to fix this.

Any suggestions???

[Squeetard]

Could be artifacts from bad memory on the card. Underclock it in ATI catalyst and test.

[Kasie23]

Can you tell me how I would do that? This is my first time playing with graphics cards!

[Squeetard]

catalyst is the software. I believe you go to the overdrive panel. Can someone with an ATI card help us out? I sold mine months ago.

[Kasie23]

On the Overdrive Panel, there are 2 sliders, one for the GPU Clock (from 625 to 700) and one for the Memory Clock (from 993 to 1200). Currently they are both set to the lowest number, i.e., 625 and 993, respectively. I don't know if I can set it below those numbers.

[JD]

If it was just DVDs acting up, I would have had a possible solution but it wouldn't do it in 3D games as well. It would of involved modifying the BIOS though to change the UVD clocks.

I have a feeling you're looking at RMA'ing the card to XFX.

[Kasie23]

Ok, I'll get in touch with them tomorrow. :(. Thanks for the replies.

[Mr. Gruntsworthy]

Um, just to double check; but when you put the computer together, did you attatch the PCI-E power connector to the card? 4850's need a dedicated power connection (4-pin, I think; it's been a while since I assembled mine).

It's either you forgot to do that, your card is overheating, or it's just defective (in which case you need to RMA it).

Oh, and just so you know, your processor runs at 3 GigaHertz, not MegaHertz, lol. If that were true, you'd have a vintage late 80's processor goin on right there.

[JD]

Card won't POST without the power connector as far as I know.

[Kasie23]

I connected the card to a 6-pin PCI-E connector. The instructions indicated that 2 were required, but there was only one place to connect it to.

I ran GPU-Z while loading the Sims and then trying a dvd movie and the temps ranged from 38.5-40 for the display IO and from 42 - 43.5 for the Memory IO.

Oh, and I brought my computer specs in the current timeframe, thanks