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Fan delete affecting overclock?

motorboat
By motorboat
in Graphics Cards
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Hey

 

I just removed (and replaced) the stock fans on my r9 290 and noticed i could get a noticably higher overclock. 

Link to my previous "build log":

So I modded the gpu cooling so that the fans get their power straight from the PSU.


Previously I could only get 1005mhz (3-3.5%) overclock with WattMan, but now it seems that I'm stable at 1035mhz?

Obviously my ghetto cooling solution is way better than the stock one, but the temps were never an issue with overclocks.

 

Has anyone else done this and gotten similar results? Of course if you go watercooled you remove the fans and you remove some of the thermal limitations of overclockin'.

I just wondered if the (2x0.4Ax12V) 9,4W removed from the gpu power consumption could affect overclocks. It's just that 9,4W is not that much at all...IMG_20180328_172408.thumb.jpg.21f37b340f6351d6ea6eb20ff2d367f0.jpg 

(vertical ziptie just for holdin' the extra weight of those fans)

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Such is overclocking, the land where even a slight drop in power consumption or heat will net results. Hell, when I got bored and overclocked the piss out of my 7950, a 5C drop in temps got me from 1000MHz stable in Superposition to 1070-1080 (depending on heatsoak).

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Often, GPUs will not clock as high, give as much power/voltage even if they are not overheating, but if they are within certain ranges of temps. Gamers Nexus has some coverage of this I believe. 

This is very easy to see on Nvidia cards with GPU Boost 3.0, as they actually let you see the whole curve.

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I don't have a problem...

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18 minutes ago, tarfeef101 said:

Often, GPUs will not clock as high, give as much power/voltage even if they are not overheating, but if they are within certain ranges of temps. Gamers Nexus has some coverage of this I believe. 

This is very easy to see on Nvidia cards with GPU Boost 3.0, as they actually let you see the whole curve.

I'm aware of that, and that's just the reason why I began wondering this. To my knowlage, the r9 290 does not have any fancy boosting capabilities.

It might be because of the temps then. I'm at 65c while benchmarking.

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