What are safe GPU temps for overclocking 8800 GTS?

The Sauce

Diamond Member
Oct 31, 1999
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Just got my Leadtek 8800 GTS 640mb version to 693/1065. Temps are quite hot there. Backed down to 650/1000 and I am getting around low 70's with the 3D test running on ATI Tool. Not sure what's safe or how high to push it.
 

Captante

Lifer
Oct 20, 2003
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I'm not sure about the GTS, but with a GTX you should be ok up to roughly 85c under load although keeping the GPU below 80c is safer ... by setting the fan to 90-100% you can keep over-clocked tempetures down very effectively.
 

The Sauce

Diamond Member
Oct 31, 1999
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Originally posted by: Captante
by setting the fan to 90-100% you can keep over-clocked tempetures down very effectively.

How does one do that, exactly?
 

The Sauce

Diamond Member
Oct 31, 1999
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I've been completely through ATI Tool...don't see any option for setting fan speeds. Even read the Wiki faq...nothing there about fan speeds. Seems I just don't get the option to control fan speeds with this card. Odd...
 

gramboh

Platinum Member
May 3, 2003
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Quick question, in Rivatuner can you set 2D and 3D fan speeds separately? I can do it on my 6800GS and am buying an 8800GTS tomorrow and want to make it quiet when my machine is idle in XP overnight.
 

yacoub

Golden Member
May 24, 2005
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ATITool is such a great tool it almost makes me want to wait for R600 cards to release, because it worked SO well with my X800XL back in the day...

with my 7900GT it still kinda works - I get temp reporting and I can set the clock speeds and I can have it kick up the fan into high gear for 3D, BUT you can't actually have it dynamically adjust the fan speed with temperature like it can for ATI cards... I'm hoping either the 8800 series allows for that and ATITool features it like it does for ATI cards, or that the R600 is price and performance competitive with the 8800s...
 

Sav

Senior member
Aug 13, 2000
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My card can not OC at all using ATI Tool, even if I move it a little above it freaks out and I have to reboot. I bought a 8800 GTS pre-oced from eVGA 320. I cant even push 600 core :(.

I am thinking this is because I am running vista, and the drivers are horrible. Anyone else using Vista ocing the card?

Thanks!
 

almach1

Senior member
Sep 3, 2005
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i'm running vista with 8800gts640 and ati tool

clocks are set at 650 and 975. i havn't tried finding the max. just put these in and all games work and vista is stable.

My idle is 55 and i just ran ati tool artifact scanning for 15 minutes and my high temp was 80c. it feels like my fan is not spinning faster when it gets hot. i never hear an increase in noise.
 

Sav

Senior member
Aug 13, 2000
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Damn my card blows :(, I figured by buying a pre-oced card they might be cherry picked. I guess worked against me.
 

almach1

Senior member
Sep 3, 2005
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Originally posted by: Sav
Damn my card blows :(, I figured by buying a pre-oced card they might be cherry picked. I guess worked against me.

it's probably due to bad drivers. Ntune failed the OC test if I creased the mhz 1 up. nvidia still is developeing drivers. i'm not even using the most current ones. I get errrors saying that my video card has recovered from a serious error.
 

TheRyuu

Diamond Member
Dec 3, 2005
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I think I might break 40C under load.

This is of course with water cooling though. :p

And I'm liking the new XG 100.95 drivers for XP.
 

Sav

Senior member
Aug 13, 2000
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Almach, what is your current driver version? I thought nVidia was supposed to release them every month, I am still using the ones dated Feb 23rd... over a month ago. nVidia ::shakes fist::


also one more question, does bumping the pci-E in bios help stability at all, or not because these cards use a direct PS input.

Thanks for the help :)
 

SPARTAN VI

Senior member
Oct 13, 2005
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I'm in sunny Southern California, live on a hill, and have my PC upstairs. 8800GTS is usually between 60-70C. The highest OC I've managed with mine was 615/1050.
 

gramboh

Platinum Member
May 3, 2003
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Can anyone confirm how you can control fan speed with an 8800GTS? Mine doesn't seem to ever spin up/down and it gets up to 75c at stock (my case fans are all spinning slowly though, that's probably why). I'd like to ramp up the fan speed on 3D applications. With Rivatuner I have it set faster but it doesn't seem to do anything. This is in XP32 with 97.92 drivers.
 

Captante

Lifer
Oct 20, 2003
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Just recently started overclocking my 8800GTX & currently an running 650mhz core & 1020mhz ddr with XG driver v100.95 ... idle temps are steady at 61c using automatic fan control & 56c locked at 100% fan... unfortunately I'm not able to measure temps under load at the moment because that part of NV cortrol panel refuses to work correctly with this driver.
 

gramboh

Platinum Member
May 3, 2003
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Originally posted by: Captante
Just recently started overclocking my 8800GTX & currently an running 650mhz core & 1020mhz ddr with XG driver v100.95 ... idle temps are steady at 61c using automatic fan control & 56c locked at 100% fan... unfortunately I'm not able to measure temps under load at the moment because that part of NV cortrol panel refuses to work correctly with this driver.

Where do you enable automatic fan control? I'd like to throttle mine up to 100% at a certain temperature. Is this part of nTune? I can't find it.

Thanks!
 

AmdInside

Golden Member
Jan 22, 2002
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Damn. I was happy with GPU setting of 600 and memory 2050MHz. I can't believe some the high GPU settings some of you are getting.
 

gramboh

Platinum Member
May 3, 2003
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I set my 8800GTS to 600/1900 in Rivatuner and am getting about 55-57c idle and 65-73c load after gaming a bunch (some games it hits 65 some as high as 73). I haven't played with fan speed and my case fans are all on low (~1200-1300rpm). I will push it farther later.