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Faulty nVidia GTX 470, Issues. High Temperatures :( - Page 4

post #31 of 69
Thread Starter 
Ok so it is down clocking itself, but loading a new page in Firefox makes it step up and then even when running at 0.875v it still sits at like 65/66C.

The graph shows when i let it sit to idle and then i opened a new tab and u can see it jump up then down then up again.

So odd :-\\
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post #32 of 69
I told you the reason for that as well... hardware acceleration in FF. Options->advanced-> uncheck hardware acceleration in the general tab.

Did you verify the volts are actually going down while in idle with a DMM? Are you reading my posts?
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post #33 of 69
Thread Starter 
Quote:
Originally Posted by juano View Post
what he really ought to do is test it with a DMM like I said hours ago. I thought he had already done that and ruled it out?
I can take my machine in to work, as in DMM u mean with a multi metre? accronyns confuse me!

If blade can check his, then i can compare it to that!


EDIT

I know hardware acceleration is on and caused it to work more, but my 9800GTX+ never used to warm up or change from 2D mode to full blown 3D..
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post #34 of 69
Yes digital multi meter. They're pretty cheap and it's a good thing to have for yourself if you do any sort of electrical work, like for example soldering unknown components on to GPUs. I'd just buy one.
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post #35 of 69
voltage is more than likely the same.. again - that SMD resistor is coming off of the GPUv output phases.. and probably used by the control IC to monitor and adjust current [like OCP].

*you remove OCP from a GPU.. temps go up at the same voltage due to increased current supply

^^^^sound like your issue? ...you need to measure the resistance level and compare it to someone elses.
post #36 of 69
You could certainly know more about this than I do, but don't 470s not have OCP? Or do they just not have it in the same sense that the 500 series do?
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post #37 of 69
Thread Starter 
Ok juano thanks, sorry if u thought i was ignoring you but ive been doing 100000 things at once. I shall take the machine to work as well as that GTX 275 so i have countless SMD caps to test. If blade is able to check the resistance of his one i can find one that matches if the current one doesnt.

CL3P20 - your thoughts are what i thought may be happening, however i was gestimating and u adding that makes me not feel so stupid ha
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post #38 of 69
Quote:
Originally Posted by juano View Post
I told you the reason for that as well... hardware acceleration in FF. Options->advanced-> uncheck hardware acceleration in the general tab.

Did you verify the volts are actually going down while in idle with a DMM? Are you reading my posts?
There's no need to disable HW acceleration. The GPU is tuned too "agressive" probably and ramps up very easily and would respond to each piece of software with HW acceleration. A better solution would be to change the profile in nVidia Control Panel.

IIRC it should be something like nVidia Control Panel -> Manage 3D settings -> Global Settings tab -> Power management mode -> "<value>" which should be changed to adaptive (OP probably has maximize 3D performance). I'm not sure if that's the case though.

Quote:
Originally Posted by Br0k3nLiNk View Post
I can take my machine in to work, as in DMM u mean with a multi metre? accronyns confuse me!

If blade can check his, then i can compare it to that!


EDIT

I know hardware acceleration is on and caused it to work more, but my 9800GTX+ never used to warm up or change from 2D mode to full blown 3D..
Sorry, I don't have any kind of measurement tools here . However anyone with a multi meter and a reference GTX 470 should be able to provide results.
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post #39 of 69
GTX470's do infact have OCP.. and it can/could be disabled a couple ways on the PCB. I cannot tell from the pic, but by the small area I can see.. it looks like you have a reference PCB.. which is a good thing, it will make this process much easier.

*I should have a 470 in the mail in a few days now myself

-Another possibility is that the SMD could be related to the thermal monitoring circuit.. and using a different value SMD could have altered the offset of the thermal diode.

*Can you measure heat at/on/out of the cooler somehow? ie- if the GPU really is 80c... then temps from airflow out the cooler and on-cooler temps should be very close as well... If you measure the cooler temp and find its only 40c.. we may be onto something.
post #40 of 69
Quote:
Originally Posted by CL3P20 View Post
GTX470's do infact have OCP.. and it can/could be disabled a couple ways on the PCB. I cannot tell from the pic, but by the small area I can see.. it looks like you have a reference PCB.. which is a good thing, it will make this process much easier.

*I should have a 470 in the mail in a few days now myself

-Another possibility is that the SMD could be related to the thermal monitoring circuit.. and using a different value SMD could have altered the offset of the thermal diode.

*Can you measure heat at/on/out of the cooler somehow? ie- if the GPU really is 80c... then temps from airflow out the cooler and on-cooler temps should be very close as well... If you measure the cooler temp and find its only 40c.. we may be onto something.
This is the entire PCB. We're looking at the bottom left corner of the PCB. Near C524, just below the 032 made in China sticker.




Edited by TheBlademaster01 - 8/17/11 at 5:49am
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