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New Theory: GTX 7900 with 512 MB killed the motherboard ;) (Overheat !)

S

Skybuck Flying

Hello,

I noticed in the nvidia control panel the temperatures of the these two
graphics cards (sli) are 50 degrees celcius in idle mode !

That's pretty high !

Add to the fact that the gfx fans are probably spinning very slowly because
of idling,

Add to the fact the output holes are very tiny,

Add to the fact there is little spacing between them,

Add to the fact the airflow in the case was not optimal,

Add to the rumor the mb sensor is near the cards,

and there you have my new theory:

The GTX cards killed the motherboard ! Overheat ! ;)

Some questions:

1. Is it possible to underclock these cards ?

2. Is it possible to make the fans spin a bit faster even in idle mode ?

Bye,
Skybuck.
 
F

First of One

You should've sticked with the all-conquering FX5200 that you loved so
much...
 
L

Lorenzo Sandini

Skybuck said:
Hello,
Click to expand...
Some questions:

1. Is it possible to underclock these cards ?
Click to expand...

I don't know and I am not sure I want to know. Using the drivers
probably not, but using Rivatuner and low-level control this should be
possible.

However I wonder why one would like to build a dream machine with SLI
and all, and then underclock CPUs and gfx cards... doesn't make much
sense to me.

My machine is by far not a dream machine (asus p5b-dlx, e6600, 7800gtx)
all running at default, but it can barely be heard even during CPU- and
GPU-heavy gaming. (Noctua cooler and CPU/case fans. No crashes, no
overheating, almost dirt cheap (second-hand mobo and gfx).

2. Is it possible to make the fans spin a bit faster even in idle mode ?
Click to expand...

On my 7800gtx, I am still using the original fan, and it cannot be
controlled by using the drivers settings. However, Rivatuner offers
low-level control on the fans' speed, and I can set them manually or
automatically. I leave that control to the driver itself, that takes
care of this correctly. For a SLI setup though, I don't know if the fans
can be set separately.

You should concentrate on having a decent machine running silent at
defaults, so you can enjoy it, rather than be bothered all the time by
all the problems the previous one caused you. You had a dead mobo, SO
WHAT ? Move on now.

Lorenzo
www.brokenbones.d2g.com
 
C

Craig Sutton

Skybuck Flying said:
Hello,

I noticed in the nvidia control panel the temperatures of the these two
graphics cards (sli) are 50 degrees celcius in idle mode !

That's pretty high !
Click to expand...

its very low for those cards.

Here's a new theory SHIT happens, motherboards die, GET OVER IT
 
B

Bhagat Gurtu

Hello,

I noticed in the nvidia control panel the temperatures of the these two
graphics cards (sli) are 50 degrees celcius in idle mode !

That's pretty high !
Click to expand...

What are you smoking?
Add to the fact the output holes are very tiny,
Click to expand...

Plenty big enough for your tiny prick.

Bhagat
 
J

John

Please people, do IGNORE him, he is multiposting in every group, he is sick,
he says he knew everything about computer and he knows nothing.
 
E

Ed Medlin

Skybuck Flying said:
Hello,

I noticed in the nvidia control panel the temperatures of the these two
graphics cards (sli) are 50 degrees celcius in idle mode !

That's pretty high !
Click to expand...
Not high at all. Most later models run much higher than any processors will
run. My SLIed 8800 GTX cards default alarm is a lot higher than 50c. That is
about normal at idle. 70+C is not unusual with most newer cards under
stress. With just average airflow those temps would not hurt your MB at all.
You worry far too much. Your MB died.......that is it. They do just die you
know. Get over it.



Ed
 
S

Spurious Response

Not high at all. Most later models run much higher than any processors will
run. My SLIed 8800 GTX cards default alarm is a lot higher than 50c. That is
about normal at idle. 70+C is not unusual with most newer cards under
stress. With just average airflow those temps would not hurt your MB at all.
You worry far too much. Your MB died.......that is it. They do just die you
know. Get over it.



Ed
Click to expand...

They also die when SkyTard idiots jump in there with NO ESD training,
and NO ESD knowledge.

He likely zapped the damned thing.
 
S

Skybuck Flying

Well to answer my own questions:

1. Yes it's possible to underclock them with RivaTuner... though I did not
notice any temperature drops. (Not sure if clocks were really lower,
probably though)

(Maybe I'll try playing a game with lower clocks to see if I noticed
anything but for now it leave it at default).

(I also tried coolbits tweak but that didn't work)

2. Yes it's possible to manually control the fans of both cards... that was
pretty cool !

I set the fan of first card to full speed and there it went... vvvmmmmmmmm.

Then the fan of the second card to full speed... and ther eit went...
vmmmmmm.

They both can make some hell of a noise... Well it's in the morning anyway.

I can hear a nail drop on the street I guess :) though cars slowly started
to drive by ;)

During real-world gaming they probably don't spin that hard ? :)

Anyway making them spin at full speed did drop the idle temperature from 53
degrees celcius to 48 degrees celcius during a minute of testing.

So that's a 5 degree drop...

I could also definetly notice more heat coming out of them at the back.

Kinda worrieing to see a 52 to 54 idle temperature with slow fans... hmmm.

Hmm not to happy with that... oh well..

Probably not gonna buy such a heat chips in the future that's for sure ;)

Bye,
Skybuck.
 
S

Skybuck Flying

Well,

I also just took a look at an nvidia bios editor... which show the voltages
of the cards.

Apperently there are two pre-programmed voltages:

1. 1.3 volts for 2D.

2. 1.4 volts for 3D.

The cards probably switch voltage when going 3D or so ? ;)

Well I am not sure if I can immediate change the voltage level or if I have
to flash it into the cards.

Ofcourse I am not going to try it because I don't know for sure what I am
doing and it's way to risky... but it was interesting to see this ;)

Also the lowest value possible is probably 1.3 volts ?

So not much use anyway.

Bye,
Skybuck.
 
S

Skybuck Flying

Just wanted to change the topic so I can find it later more easily ;)

1. Riva tuner does the trick ;)

Bye,
Skybuck.
 
R

Roger (K8RI)

On Sun, 24 Jun 2007 07:44:52 +0200, "Skybuck Flying"

Anyway making them spin at full speed did drop the idle temperature from 53
degrees celcius to 48 degrees celcius during a minute of testing.

So that's a 5 degree drop...

I could also definetly notice more heat coming out of them at the back.

Kinda worrieing to see a 52 to 54 idle temperature with slow fans... hmmm.
Click to expand...

What's wrong with 50C. I'm used to seeing CPUs run tht and GPUs
normally run hotter from my experience. Some run much hotter.

<snip>
 
J

John Lewis

Hello,

I noticed in the nvidia control panel the temperatures of the these two
graphics cards (sli) are 50 degrees celcius in idle mode !

That's pretty high
Click to expand...

Really ? Is that so ? Why ?

With every posting you further expose yourself as a total
techno-illiterate..... Please get help from both your psychiatrist and
your original system-builder. Your psychiatrist will help alleviate
your cross-posting fetish and your system-builder might be willing to
use simple technical words that you can understand, particularly if
you pay him by the hour.

John Lewis
 
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