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GTX 460 throttle?

post #1 of 20
Thread Starter 
I recently buy a used GTX 460. To check for bug/defect, I run a few stress test @ stock clock with Furmark (v1.8) but for some reason, the gpu usage (shown in MSI afterburner) often drops to 20%~30% for a few secs then rise again to 99%, causing the temp graph of furmark also to drop and rise. This seems to happen after 10 minutes or so.

Look at the white circle below:



Is this a normal reaction of GTX 460 or of the current driver? or is it a bug/defect? If it is an intentional reaction from the manufacturer, how can I test for stability if I try to overclock or something?

Previously, I've never encountered such issue with the 5770.

Thanks for reading!!!

My specs:
Asus P7P55D-E PRO
i5 750 @ 4ghz (dynamic w/o turbo boost)
Gskill 2x2GB @ stock
Acbel ipower 560w (real continuous load: 510w)
Edited by 9635741 - 2/11/11 at 8:11am
post #2 of 20
Quote:
Originally Posted by 9635741 View Post
I recently buy a used GTX 460. To check for bug/defect, I run a few stress test @ stock clock with Furmark (v1.8) but for some reason, the gpu usage (shown in MSI afterburner) often drops to 20%~30% for a few secs then rise again to 99%, causing the temp graph of furmark also to drop and rise. This seems to happen after 10 minutes or so.

Is this a normal reaction of GTX 460 or of the current driver? or is it a bug/defect? If it is an intentional reaction from the manufacturer, how can I test for stability if I try to overclock or something?

Previously, I've never encountered such issue with the 5770.

Thanks for reading!!!
do you have the latest driver? also update furmark if it isnt the latest version.

at stock clocks it should not be doing that. normally throttle is a sign of a bad overclock, but urs is stock.

also try msi kombuster, see if that does the same thing.
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post #3 of 20
i see you only have a 560 watt psu and it could be pushing it a little hard with synthetic tests...im assuming games dont do that cuz they wont stress it as much?
post #4 of 20
Quote:
Originally Posted by TheCondor13 View Post
i see you only have a 560 watt psu and it could be pushing it a little hard with synthetic tests...im assuming games dont do that cuz they wont stress it as much?
no, 560 is way more than enough. probably could run that setup on a high quality 400-450w psu.
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post #5 of 20
Quote:
Originally Posted by TheCondor13 View Post
i see you only have a 560 watt psu and it could be pushing it a little hard with synthetic tests...im assuming games dont do that cuz they wont stress it as much?
You can run a 480 on a 550W.
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post #6 of 20
Thread Starter 
Thanks for the suggestions. I guess I'll try to install the latest driver first. I'm running on v260.99.

@AliceInChains: When I said "stock clock", I meant the manufacturer-overclocked one @ 725/1800, which should be not a big deal for GTX 460, rite? If it is not stable on this clock, can I ask for RMA, then? It's an EVGA after all (not the EE version).

@TheCondor13: This PSU is by no means a good one but according to xbitlab review, it can hold its own on its rated specs. But do you suggest I return my cpu to stock before running stress test?
Edited by 9635741 - 1/25/11 at 8:37pm
post #7 of 20
Quote:
Originally Posted by 9635741 View Post
Thanks for the suggestions. I guess I'll try to install the latest driver first. I'm running on v260.99.

@AliceInChains: When I said "stock clock", I meant the manufacturer-overclocked one @ 725/1800, which should be not a big deal for GTX 460, rite? If it is not stable on this clock, can I ask for RMA, then? It's an EVGA after all (not the EE version).

@TheCondor13: This PSU is by no means a good one but according to xbitlab review, it can hold its own on its rated specs. But do you suggest I return my cpu to stock before running stress test?
yes, you should load optimized defaults in bios. just so you can eliminate your overclock as being the cause or adding to the cause.

and as far as the stock overclock, yes it should be able to handle it because it was done by the manufacturer.

but definately try the newest drivers before you attempt to rma. always want to eliminate the easy things first.


also try to download msi kombuster. it might just be a problem with furmark. it wouldnt be the first time.
Edited by AliceInChains - 1/25/11 at 8:42pm
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post #8 of 20
Also, quit using furmark. Use OCCT instead.
http://www.ocbase.com/perestroika_en/index.php

OCCT does not falsely/unrealistically tax the graphics card like furmark does. You will never play a game that will push your card like furmark does. OCCT with the error checker turned on looks for extremely high precision in calculations the GPU performs. Minor instabilities will be picked up in OCCT. It will also heat up your card fairly well. Some people have said it is just as strenuous as furmark, some say it isn't. For me it was about the same, max temp wise. But I felt better knowing OCCT is checking for errors as well.
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post #9 of 20
Thread Starter 
well, after installing the latest driver, furmark still 'hiccup', like this (note the drop in both furmark and msi afterburner): http://img607.imageshack.us/img607/9...markhiccup.jpg

I'm running OCCT now to see if there is any difference
post #10 of 20
Thread Starter 
Oh no, even OCCT got 'hiccup': http://img526.imageshack.us/img526/713/occthiccup.jpg

And so did Kombustor, within only 5 minutes or so.
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