6800gt freezing after 15min

Dia · Apr 10, 2005, 02:24 PM

Hello i just bought a aopen 6800gt but after 10-20min of gaming it freezes and the screen gets all blurry with blue lines all over
It only happens when i play games no problems running in windowsXP for houers.

Just noticed that a bluescreen shows up behind the blurry graphic and says something like
your comp .... to prevent dmg ....
.. nv4.iso or something like that

gona try to print scrn it

amd 3500+
512mb ram
antec 360w (lanboy)
winXP sp2
nvidia 71.84 (61.77,67.03)
abit av8 latest bios
latest via drivers

HELP!!!

Dia · Apr 10, 2005, 03:04 PM

same happens in 3dmark05 when the 2 test starts it freezes
the first test when the soldiers storming the base is working fine

Warpy · Apr 10, 2005, 05:34 PM

First of all welcome to DH

Your vid card sounds like it maybe a temp issue. Here is what I'd do... download this applicaztion here and run it in a Window - not full screen. Open the nVIDIA temp applet with the display control pannel and watch the temps rise, keep a tab on how hot it gets and report back here.

Application download

The features of the benchmark application are:

Rthdribl is a "Real-time High Dynamic Range Image-Based Lighting" demo. DirectX(R) 9.0 high-precision texture formats and version-2.0 of Pixel Shader represent real-time true HDR rendering. Technical features of the demo are:

True HDR (High-Dynamic Range) Rendering
IBL (Image-Based Lighting)
Glare Generation (Afterimage, Bloom, Halo, Ghost, and Star)
Automatic Exposure Adjustment
Iris shaped Depth of Field blur
Realistic Motion Blur
FSAA (Full-Scene Anti-Alias)
Fresnel Effect (Specular Reflectance) etc.

And they really heat up your card and use 100% of its processing power. I use this application to test new drivers to monitor my temps before I am comfortable.

Dia · Apr 11, 2005, 12:01 PM

Thnx warpy

damn are u gona turn my comp into a souna

temp went up above 80+ a little later it froze

so i guess thats my problem and not the power suply

jasonbourne · Apr 11, 2005, 12:13 PM

when the video card doesnt get enough energy from the ps it get stressed and it overheats.so the problem can be the ps .

CDsDontBurn · Apr 11, 2005, 12:47 PM

look into getting the NV5 VGA silencer for your gfx card. It really helps alot in keeping your video card cool.

Resistor · Apr 15, 2005, 07:54 AM

Yeah I think the PSU could be also the cause of the froze problem... That's a small PSU for the big card there.

Warpy · Apr 15, 2005, 10:15 AM

Yeah, I have heard that some GPU's require as much as a 480W PSU like my 6800 ULTRA OC. What CPU temps do you get, it may be the case layout and a lack of ventilation, but the PSU is def suspect no.1

My GPU barely exceeds 65 on full load, so to me 80 degrees is a little over the top in terms of stability for your card.

pr0digal jenius · Apr 15, 2005, 11:32 AM

Look into atleast a 400 watt PSU, but I'd grab a 470watt if possible.

and a good one(Vantec, OCZ, etc)...most PSU's that come with cases aren't too great

Randy P · Apr 15, 2005, 03:04 PM

Yeah, 80C is hot, but really should not be a problem..definately shouldn't crap out the card. A new power supply is a great idea. When I got my leadtek 6800gt I got a new psu too (Enermax 460W) The 6800gt, I think, sucks 100W or more.

Disaster · May 2, 2005, 08:33 AM

i have a 6800GT o/c which locks up after 10-15 mins. my psu is only 400w and i read somewhere that a card like that needs at least 480w so i just ordered a 600w psu!
That should power the GT and everything else!
my temp at the moment is nearly 90C!!

rico01 · May 2, 2005, 02:14 PM

90 is within the normal parameters I think but it is still incredibly hot. My Leadtek 6800GT is at 60 and I think that is too high. Though I know what the problem is, my card is angry because it had to move into another case.

// M

Dia · May 9, 2005, 12:02 PM

well finaly got time to work on the card again and bought a nv5

the temp went down to maximum of 75 but the problem is still there!
when i removed the old fan i found that there was no cooling on 1 memory so i thought the new cooler shuld help but no difference

any help is welcome

thnx and sry if my english isnt the greatest