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-   -   Weird Graphics Problem with PNY 6800GT (http://www.nvnews.net/vbulletin/showthread.php?t=36231)

|MaguS| 09-05-04 07:54 AM

Weird Graphics Problem with PNY 6800GT
 
Im having some issues with my PNY 6800GT, Its only in certain games but these games are new titles so it scares me more.

The problem is I would get horrible lines jetting out from models in games, this so far has happened in the new Medal of Honor demo and in the Everquest 2 Beta. Both are supposly SM3.0 enabled games, Farcry with the Beta SM3.0 path gives me no problems at all. I have tried various drivers with it happening in all them (from 61.72 -> 66.00). I also have the official release of DirectX9c. Im also using the latest PNY bios, rev02.

Im running the card at stock speeds currently but have tested it at 420/1100 in other games without any issue, but in these two games I get issues no matter if ats stock speeds or overclocked.

Could this be a driver issue or something much worse? I thought it could be my card overheating but during a 30min of rthdribl I have yet to see it go above 75C, on idle its around 55C.

Has anyone else seen this issue?

System Specs:
AMD64 3200
Biostar K8VHA Pro
1GB DDR400
PNY 6800GT
Sparkle 530PSU

Screnshots:
Medal of Honor: Pacific Assault
Everquest 2 Beta

Subtestube 09-05-04 08:19 AM

Re: Weird Graphics Problem with PNY 6800GT
 
No idea what the problem is, but as a matter of interest, anyone know if these games use shadow volumes? Because it *looks* like some of the vertices are getting projected to infinity in exactly the manner they are when shadow volumes are calculated. I can't see this being a SM 3.0 problem, as I can't imagine these games using practically the only SM 3.0 that might effect vertex projection (Vertex Texture lookup). Looks odd... have you tried turning off shadows? Though, admittedly, both those screens don't seem to show any kind of shadowing at all...

OWA 09-05-04 09:03 AM

Re: Weird Graphics Problem with PNY 6800GT
 
Yeah, I've seen some of that in the MOHPA demo. I'm overclocking my GT and haven't tried putting it back to stock to see if it goes away though. I'm using the 61.77s.

FearMeAll 09-05-04 09:25 AM

Re: Weird Graphics Problem with PNY 6800GT
 
I had the exact same thing as well and it was because of core overclocking. Lowered my overclock 5mhz and bam problem solved.
There is only one thing that causes that and that is heat on the core.

OWA 09-05-04 09:32 AM

Re: Weird Graphics Problem with PNY 6800GT
 
Yeah, it was my overclocking that was causing it. I set things back to default and now it looks great!

Edit: You're right. It's the core. I just had to drop it by 5mhz to get rid of the problem. Instead of using 405/1120 I'm now using 400/1120 and things are fine.

|MaguS| 09-05-04 09:56 AM

Re: Weird Graphics Problem with PNY 6800GT
 
Yeah for me, Im getting it at stock settings but only at 1600x1200, 1280x1024 its all ok.

FearMeAll 09-05-04 10:40 AM

Re: Weird Graphics Problem with PNY 6800GT
 
Quote:

Originally Posted by egbtmagus
Yeah for me, Im getting it at stock settings but only at 1600x1200, 1280x1024 its all ok.

oohh..bad.
If it can't handle stock you should look at some better cooling, or contact you manufacturer.

|MaguS| 09-05-04 10:48 AM

Re: Weird Graphics Problem with PNY 6800GT
 
Hmm, PNY states on thier website that they can tell if your card has been OC'd if you RMA it. Is that possible without there being actual damage on the card? I thought OCing was software based and is reset once removed from the PC.

Also can it really be a cooling issue even if it only happens in these two games? I can play CS:S, Halo, UT2K4, Splinter Cell, FarCry and Doom 3 just fine. Should I wait for the next driver release prior to RMAing it?

Sorry for all the questions, this is the first time I have ever had any issues with hardware.

dprimm 09-05-04 11:37 AM

Re: Weird Graphics Problem with PNY 6800GT
 
I have the MOH Demo and I get no such problems with my PNY 6800GT (stock speeds).
There are 2 key words to keep in mind here, DEMO & BETA.

scott123 09-05-04 11:41 AM

Re: Weird Graphics Problem with PNY 6800GT
 
No, PNY cannot tell if a card has been overclocked. It would be based on conjecture, not fact.

kyleb 09-05-04 02:43 PM

Re: Weird Graphics Problem with PNY 6800GT
 
Quote:

Originally Posted by dprimm
I have the MOH Demo and I get no such problems with my PNY 6800GT (stock speeds).
There are 2 key words to keep in mind here, DEMO & BETA.


Hah, the key words are "core" and "speed." I had the same problem with my gt at 400mhz, but at 390 it is fine.

FearMeAll 09-05-04 04:50 PM

Re: Weird Graphics Problem with PNY 6800GT
 
I wonder if those VGA silencers work really well at cooling the card. I know after taking apart my BFG6800GT that I think the current cooling solution really sucks. There is only one flimsy little fan cranking around plastic looking heatspreaders.
I've googled and can't find a VGA silencer anywheres. They are as hard to get as 6800s themselves.
I really want to run at ultra speeds badly and I know just a little more cooling will make it do that. I hate being now 15mhz off on the core and core speed seems to be very important on these new cards.


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