8800GT automatic fan control issue?

S

sobol

Limp Gawd
Joined
Mar 11, 2003
Messages
148
Hi
I've just received my Gainward 8800GT. Installed expertool and rivatuner 2.06.
Then I've tried to OC it to 700/1700/1000 and got few blue screens/games freezing.

When the fan speed is set to auto and load reach 100% the core temp is reaching 94C. The RPM jump from 1500 to 2200 RPMS . Obviously when I overclock card it's getting too hot and with insufficient cooling I'm getting freeze issues. That can be easily fixed by using RivaTuner and low-level fan control.

Settings I'm using are:
Duty cycle min: 29
Duty cycle max: 100
T min: 55
T range: 13
T operating: 110
T low limit: 0
T high limit: 110
This will give you better RPM spectrum (from 1400 to 4200)

Also just for the record, my Gainward 8800GT with fan set to 100% oc only to 680/1700/950, anything above that give me artifacts in ATITOOL.
 
Gainward is sold now and I'm playing with Sparkle 8800GT.
This one max out on 660/1630/1000 , the card is going for sale :/
 
sobol said:
Hi
I've just received my Gainward 8800GT. Installed expertool and rivatuner 2.06.
Then I've tried to OC it to 700/1700/1000 and got few blue screens/games freezing.

When the fan speed is set to auto and load reach 100% the core temp is reaching 94C. The RPM jump from 1500 to 2200 RPMS . Obviously when I overclock card it's getting too hot and with insufficient cooling I'm getting freeze issues. That can be easily fixed by using RivaTuner and low-level fan control.

Settings I'm using are:
Duty cycle min: 29
Duty cycle max: 100
T min: 64
T range: 12
T operating: 90
T low limit: 62
T high limit: 100

This will give you better RPM spectrum (from 1400 to 3500)

Also just for the record, my Gainward 8800GT with fan set to 100% oc only to 680/1700/950, anything above that give me artifacts in ATITOOL.
Click to expand...

That's hot, but normal for the GT according to the reviews. It would seem the single slot cooler is insufficient for this card. I'll probably put a 3rd party extract fan on it.

What are you case temps like?

I must say the dual slot heatsink/fan on the GTS was superb. Looks like Nvidia have benn cutting costs with this card.
 
I just got mine yesterday and I haven't had time to play with any utils besides ntune. Anyway, my card also hit 91C while playing the Crysis demo last night. I went into ntune and manually set the fan speed to 80% constant. That kept the temps into the '70s under load, but it came at the expense of noise. At 80% the fan most certainly is audible.
 
spicey said:
I must say the dual slot heatsink/fan on the GTS was superb. Looks like Nvidia have benn cutting costs with this card.
Click to expand...
I doubt it's about cutting costs. Rather, it's about satisfying all those folks who complained constantly about how the GTS and GTX used double-slot coolers.

So, they went back to a single-slot cooler as soon as they could (now that they're 65nm). . . and they get bashed for that as well.

They can't win.

On the internet. . . nobody can. :)
 
I honestly think the one slot cooler is fine, but they should have use copper rather than aluminum to do it right. Even with the die shrink the card just runs too hot for a single slot aluminum cooler.
 
Hurin said:
I doubt it's about cutting costs. Rather, it's about satisfying all those folks who complained constantly about how the GTS and GTX used double-slot coolers.

So, they went back to a single-slot cooler as soon as they could (now that they're 65nm). . . and they get bashed for that as well.

They can't win.

On the internet. . . nobody can. :)
Click to expand...

You're talking utter bollocks, the heatsink/fan on the 8800GT is a piece of shit. It cools badly and it sounds like a leaf blower at high speed. Nvidia have taken a step back with this cooler, there is no doubt about it. See thread on 8800GT coolers
 
spicey said:
You're talking utter bollocks, the heatsink/fan on the 8800GT is a piece of shit. It cools badly and it sounds like a leaf blower at high speed. Nvidia have taken a step back with this cooler, there is no doubt about it. See thread on 8800GT coolers
Click to expand...
They went with a single-slot cooler because there were a lot of people bitching about the 2-slot coolers on the other 8800s... and they could get away with it here.
 
Well here is my third graphic card within 7 days ( good bless ebay ).
This one was the cheapest of them all, and crappiest brand Inno3D. But
guess what I'm 10 minutes now on ATITOOL with 700/1700/1000 and no artefacts !!!!!!!!!!!

Third time lucky!

Regarding cooling:

The 8800GT fan is great comparing to what you find on 2900PRO/XT.
If you have a Vista 64 it's really difficult to control fan on 2900 series graphic cards.

8800GT is almost inaudible from 0 to 2200 rpms which can cool the card to around of 80C while 100% load. Taking into account that you can use rivatuner and set it to 3000 rpm while load , id say its very good cooling solution.
- 1 slot only, quiet while idle, efficient when needed ( know laud, but then you have your speakers on or headphones while playing games ).

sobol said:
Gainward is sold now and I'm playing with Sparkle 8800GT.
This one max out on 660/1630/1000 , the card is going for sale :/
Click to expand...
 
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