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Is this normal behavior when overclocking?

post #1 of 6
Thread Starter 
i was watching my temp today and i noticed something very odd. When i overclock my video memory my gpu temps immediately jump 10-15C and when i underclock it it drops 10-15C .when i overclock it from 900 to 1000MHz my gpu temps instantly shoot up to 62C idle from 52C. But overclocking or underclocking the core make no temp change in idle at all but when under load it goes up 1C.
at 790 core and 1000 memory my temps are around 74C

am i stressing for nothing or is that not a good sign? My 4870 has no memory cooling but gets a significant amount of air from the cooler.
the reason why i am asking is because i have had a lot of video cards and never experienced this before on any of them.
Edited by philhalo66 - 4/24/12 at 10:50am
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post #2 of 6
well, since your card has no memory cooling, ii's not really designed to be overlocked so much, so imho , your card is fine
post #3 of 6
That's a bit odd since the temp reported is for the GPU core itself.
I wouldn't really worry about it unless you start getting screen artifacting, though.
Quote:
Originally Posted by d-unknown View Post

well, since your card has no memory cooling, ii's not really designed to be overlocked so much, so imho , your card is fine

Facedesk.
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post #4 of 6
Thread Starter 
Quote:
Originally Posted by d-unknown View Post

well, since your card has no memory cooling, ii's not really designed to be overlocked so much, so imho , your card is fine

hmm i guess i can buy some ramsinks for it.
Quote:
Originally Posted by beers View Post

That's a bit odd since the temp reported is for the GPU core itself.
I wouldn't really worry about it unless you start getting screen artifacting, though.
Facedesk.

nope no artifacts but i did notice my gpu usage is solid 99% in BC2 now and at stock clocks it drops to 60% all the time.

here is a perfect example
underclocked
375

overclocked
375
Edited by philhalo66 - 4/24/12 at 1:01pm
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post #5 of 6
If your current cooler pushes a breeze over the IMCs then they should be fine.
My 6950 doesn't have ramsinks and has been functioning properly for a few months now.
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post #6 of 6
Thread Starter 
Quote:
Originally Posted by beers View Post

If your current cooler pushes a breeze over the IMCs then they should be fine.
My 6950 doesn't have ramsinks and has been functioning properly for a few months now.

IMC's?, if you mean memory modules then yes it does have some airflow over them. but if you mean VRM's then it also does plus they are not the normal ones they are the old fashioned Analog ones not the DIGI VRM's on reference card (if that made sense) and they have their own heatsink.
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