Graphics corruption on EVGA 7800GT

[xtknight]

Time to RMA.

 

[AsianriceX]

Hey, I'm in the same boat as you. I ordered an eVGA 7800GT w/BF2 bundle from newegg on the 8/22. I got the card today and am experiencing that crazy texture/polygon corruption.

I was looking at temps, but I don't think they're too high. They idle at 53C and peak at 69C under load. I couldn't find any other information on this problem other than this thread and one on eVGA's forum, both telling the user to RMA.

I did however install rivatuner because I wanted to see what the damn card was clocked at. Lo and behold, rivatuner reports the card at 245.40MHz idle, and 486.00MHz under load! Is rivatuner reporting wrong? If not, I need to figure out how to downclock this card back to its stock (445MHz) settings.

I'm running 77.77 drivers from nvidia's website. I'm thinking of uninstalling and trying eVGA's just in case.

UPDATE:
I didn't install eVGA's drivers, but I did however use coolbits to play with the overclocking settings. I set the clockspeed to 400MHz when in 3D mode and as soon as I jumped into BF2, clock jumped to 438.75. It seems as though this is either a problem with the drivers not clocking properly, or the card BIOS isn't hitting the proper frequency right. (I'm not sure on how the card receives its frequency settings, either through drivers or bios, someone clarify?)

Anyway, rivatuner showed 438.75MHz, so for some reason the card is adding ~39MHz to the specified setting for 3D mode. There are no more artifacts in BF2 when the card runs at 438.75MHz.

Can anyone clarify if this would be a hardware or software driver issue? This would help in determining whether or not I need to RMA this card, or if I can live with having my OC setting to 400MHz+39MHz until a driver update fixes this...

 

[AsianriceX]

Can anyone else comment on this? I just want to know if this might be a driver problem, where I should be using eVGA's "custom" drivers, or if there's just a bad batch of cards.

 

[orangat]

Something in the driver is busted. Maybe you didn't install the drivers correctly. You have clean out the vendor specific drivers before installing nvidia's if you go the generic path.

 

[BSC14]

I'm getting the same stuff....

 

[impemonk]

ROSEWILL 550W PSU BABBBYYY! It runs my 7800GTX juuuust fine and dandy and even came with a 20pin to 24 pin converter so I can use the PSU on my AGP ssytem AS well as my PCIe system

 

[AsianriceX]

Originally posted by: orangat
Something in the driver is busted. Maybe you didn't install the drivers correctly. You have clean out the vendor specific drivers before installing nvidia's if you go the generic path.

This was a clean install of XP so I only installed the nForce4 drivers for my A8N-SLI Premium, and installed the Forceware drivers from Nvidia. I never installed eVGA's build of 77.77.

So either Nvidia's driver is busted with eVGA's OC'd card, or I should have been using eVGA's driver build from the beginning if they had specially tweaked it for the factory 445MHz OC.

 

[ZH]

I keep hearing a lot of people using Antec's TruePower PSUs.. Although they're good, they are LOUD! I had the 480W psu from Antec and I could not stand the noise. I have another 430W from Antec on another comp and fortunately it's not as loud.
If you're looking for a new PSU, go for a SeaSonic. THEY ARE QUIET. I got the 500W Seasonic and it's even quieter than the 430W (this may however be due to the 430W psu powering more components and 5 harddrives). But still.. Seasonic is the way to go.

- ZH -

 

[BeakerChem]

About the 18A 12V rail. Please keep in mind that the Video card will pull from both (or all three) rails on most PSU setups.

I could be totally wrong on this, so correct as you wish, but here is the setup from my PSU (Enermax 600W, dual 12V - 18A each rails)

24 pin Main is on Rail 1, so 4 pins of that are helping the PCI-express slot and able to put out 5.5 A. An EZ-plug Molex on my MB is also coming from the 1st rail, so I can draw an additional 6A off of this for the Vid-card to use. The video card itself has a 6 pin PCI-express helper power plug, which is strategically put on rail 2. So now I can pull up to 18 A from the 6 pin, rail 2 - and another 11.5 A off of the first rail.

One thing to keep in mind though (again, correct me where I fall on my face in misinformation) is that the 1st rail is feeding the CPU too, so there may not be the full 11.5 A worth from rail one to play with. But even if you need =>24A for your video card, you can theoretically pull 18+11.5 = 29.5

 

[AsianriceX]

I hit this in another thread, but here's an update on the evga 7800GT problems.

Evga knows about it and is supposedly going to fix it with a new driver.

Text

 

[Deleted member 4644]

My card is corrupted even in BIOS!

 

[duke2106]

I'm getting the same thing on my evga 7800gt. If I go into the video properties/advanced/troubleshoot, move the hardware acceleration slider down one notch, apply, and move it back, and apply again, it appears to fix the problem.

I'll get rivatuner tonight and see if I'm getting the same thing that AsianriceX is getting regarding clockspeed. I've uninstalled the drivers, ran drivercleaner pro to make sure that there was nothing left over, then installed the latest nvidia drivers (not the evga modified ones) and get the same thing.

This is on an ASUS A8N-SLI Deluxe, Athlon 64 3500+, 2 gig corsair twinx ram.