nvidia 6800 GT over heating problems

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Icepick

Diamond Member
Nov 1, 2004
3,663
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I've got a Gigabyte 6800 GT - GV-N68T256DH. I'm using the Vtuner software that came with the card. It reads 71C at idle. Running Doom 3 puts the card up to 99C. This card has never been overclocked. I already upgraded Vtuner2 to the latest version. I'm running the latest video drivers (66.93). This card always runs the same temperatures. When I let it run with the side of the case off it will drop down to 69C idle so I don't think there's a cooling problem in the case. I did run speedfan and it reports the same temps as Vtuner. Has anyone seen a video card run this hot before? Is it within acceptable temps? Is there anything else I can do or should I RMA this bad boy? Help me out here.
 
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Rhagz

Senior member
Oct 25, 2004
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the threshhold on a 6800 is up around 115-120 degrees.. i wouldnt worry if you arent crossing 100 at any point. mine idles around 54-64 depending on room temp and what ive done on the comp lately, and gets up to mid 80's under load
 
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Rhin0

Senior member
Nov 15, 2004
967
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Notice he said 99C that is like 210F!!! Surely not... That is pretty hot LOL. Don't touch that thing
 
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Cat

Golden Member
Oct 10, 1999
1,059
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Post your ambient temperature as well.
6800GT at home, side open:
61C GPU
44C Ambient

6800GT at work is about 20C higher in both categories.
 
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Icepick

Diamond Member
Nov 1, 2004
3,663
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The ambient temp inside the case is 35C. I've got a temp probe taped to the heatsink on the video card and that reading always stays between 45-50C.
 
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fisheye

Member
Aug 12, 2004
63
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Sounds higher than normal but not too hot...mine idles at 63-64C. I've seen it up around 89C at load. As said before, threshold for the 6800GT is 120C, so it's not really overheating. Do the sensors on the video card have the same problems with accuracy as motherboard sensors?
 
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Icepick

Diamond Member
Nov 1, 2004
3,663
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81
This one does have the newly designed heatsink that is on both the top and bottom of the card. There is a fan imbedded in the heatsink on top of the card (when the card is installed in a tower case). Here's a link to it: http://www.newegg.com/app/view...=14-125-151&depa=0
I had hoped that the VTuner software was just reporting the temp incorrectly but I installed Speedfan and it shows the same temperatures. Even now it's showing 70C with nothing running except this browser and no overclock. weird.
 
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CaiNaM

Diamond Member
Oct 26, 2000
3,718
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my 6800GT was doing the same thing.. never hit 100c, but did hit 99c. i contacted BFG and the tech said that was too hot (the text from his email is actually posted on the forum somewhere), and to fill out an rma. didn't want to be w/o my card, so i ended up removng the factory heatsink (the dual fan BFG one) and installing an NV silencer to see if that would help. card never exceeded 76c after that, and that was when my office was extremely warm when ac was broken (usually max temps are 70-72c). it idles around 54c.

 
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Icepick

Diamond Member
Nov 1, 2004
3,663
4
81
Thank you CaiNam! Nice to know I'm not the only one who has run into a problem like this. Like you, I don't want to be without a card either. I haven't decided whether I'm going to RMA it back to ZipZoomFly and purchase a new one from a different brand or try one of those NV silencers. I'm leaning towards getting a new one and unloading this. I have seen a couple of posts here and there where people with this same card idle in the 50's and peak out in the 70's and low 80's so I may have just gotten a lemon.
 
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Icepick

Diamond Member
Nov 1, 2004
3,663
4
81
I'm RMA'ing this little pressure cooker back tomorrow for a refund. Picked up a BFG 6800 GT (old reference design w/only one fan) at Best Buy today and installed it. Temps now are around 57-58C idle. During Unreal Tournament 2004 with all eye candy turned on at 1600x1200 temp peaks out at 70C and no suttering. MUCH better than the Gigabyte 6800 gt that was in my system.

Upgraded to latest drivers today (6693). Ran 3dmark05 and scored 4668. With the Gigabyte card and same drivers the best I could get was 4188. I'm much happier with the BFG.

By the way, this card is quieter than the Gigabyte card.
 
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Acanthus

Lifer
Aug 28, 2001
19,915
2
76
ostif.org
its probably just a poorly seated HSF, its common among videocards.

even removing the heatsink, applying AS5, and reseating the heatsink properly would dramatically reduce your temps (this WOULD void your warrenty.)
 
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platinumike

Platinum Member
Nov 18, 2004
2,114
3
0
I have the BFG 6800gt. Had overheating problems as well, artifacts all over the screen,etc. My pc runs hot so it wasnt no big deal. I peeled off both side panels on my pc, and took a huge 80mm fan, that blows very hard and stuck it on top of the pci card under the agp slot. I didnt know what the temp was when I was getting artifacts, but I havent seen any since. Btw, the manual said to leave an open pci slot between your video card and your next pci card. Now at idle, my card is: gpu:61*C and ambient:40*C. Under HL2 load, it was gpu:72*C I would imagine it was near 100*C when it was getting artifacts, wish I had checked.
 
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Icepick

Diamond Member
Nov 1, 2004
3,663
4
81
Acanthus, I suppose it's possible that they didn't apply the cooling paste correctly but, the heatsink is a weird design. There's no fan on the bottom of the card (where the chipset is) to cool it like on the nvidia reference. The top of the card where the fan is does stay very cool but, the bottom heats up with no fan to carry the heat away. It relies on a heatsink to transfer the heat to the top of the card to be cooled by the fan.
 
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Omega Ohm

Banned
Nov 15, 2004
65
0
0
Originally posted by: icepik
Omega Ohm - Out of curiosity, is your Gigabyte the GV-N68T256DH model?
http://www.newegg.com/app/Show...mage=14-125-151-04.jpg
Click to expand...



That's the one. After reading some people's issues, I tried out that vid benchmark mentioned earlier in another thread... something or other with all the floating balls. Never went past 82 in that test and it idles 55 running 400/1100. Gigabyte might have had a bad batch or something. I got mine from Newegg, but it didn't come with Doom3 as advertised, it came with some Thief game and something else.

 
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killersilver

Junior Member
Dec 12, 2004
7
0
0
If it came with Thief then its not GV-N68T256DH. The model you are talking about is GV-N68T256D without the H on the end that means Heatpipe.
 
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Subhuman25

Senior member
Aug 22, 2004
370
0
0
My eVGA 6800GT idlels @ 51C with the NV Silencer5 HSF + AS5 paste.Under full load during SWG-JTL it never exceeds 61C @ 1280x1024 resolution and all graphic goodies on.
My eyes about poped out of my head when i saw your temp's! 99C is way too freeken hot.Even with a stock HSF & overclocked under full load with high res. & goodies turned on.
I'd RMA it and see if the replacement spikes temp's like that too.In that case,if it does,I'd try a different HSF such as the one I'm using and see if that'll cool it down.
 
uOpt

uOpt

Golden Member
Oct 19, 2004
1,628
0
0
I bet this is misapplied cooling.

The new Anandtech article mentions that Gigabyte is using a thermal glue instead of thermal paste and screws. I bet 45 cookies they scewed (hehe) this up.

In your card it is extra-complicated since they have to transport the heat from one side of the card to the other. If you don't have a tight thermal transport chain then the cooling on the other side is pretty much useless.

Also notice this picture which shows they didn't even mount it evenly:
http://images10.newegg.com/pro...mage/14-125-151-04.JPG


(EDITed because I changed my mind)
 
zerocool84

zerocool84

Lifer
Nov 11, 2004
36,041
472
126
Originally posted by: killersilver
If it came with Thief then its not GV-N68T256DH. The model you are talking about is GV-N68T256D without the H on the end that means Heatpipe.
Click to expand...
isnt his the one with the nvidia ref hs/f???
 
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djsmiley2k

Junior Member
Dec 25, 2004
4
0
0
I belive he got Thief because hes not in the U.S? I heard on toms hardware that anyone in germany or europe (last time i checked, germany WAS in europe) would get a different game, but at the time of publishing they didn't know what game?.

This was in the artical where they looked @ the fan.


Anyone point out to me where i can find these BFG Ones, life time warrantee? im Really interested as im not too happy with the temps that im getting from the Gigabyte one i have.


BTW the model number for mine (With Thief is : GV-N68T256DH-N)

Cheers.
 
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