emperor496 Posted February 18, 2011 Posted February 18, 2011 dear OCers.. My gtx-470 temperature with stock cooler 55degC idle, 80+degC on load. It makes me worry so I change to Liquid Cool. Using EK waterblock. Now idle temp. is 42 to 44degC, but while playing games, the temp only increase by 1 degC to 45degC. My CPU temp. going up to 68-70degC, only GPU temp. maintain. Is it normal for Liquid Cooled GPU? My line-up : Pump>Rad>CPU>NB>GPU>Res. thanks Share this post Link to post Share on other sites More sharing options...
Waco Posted February 18, 2011 Posted February 18, 2011 Pretty normal in my experience. My 4870X2 only rises up by a couple degrees when gaming - probably because of the rise in water temp. Share this post Link to post Share on other sites More sharing options...
Krieg1337 Posted February 18, 2011 Posted February 18, 2011 Is your CPU watercooled? Share this post Link to post Share on other sites More sharing options...
emperor496 Posted February 18, 2011 Posted February 18, 2011 Is your CPU watercooled? yes.. my CPU, NB & GPU.. but only CPU & NB temperatures increase.. Share this post Link to post Share on other sites More sharing options...
Boinker Posted February 19, 2011 Posted February 19, 2011 Yes, When I was watercooling my GTX260 the temperature of my GPU would go from 40-45c and my cpu while gaming would hang around 50 tops with varying loads. But as far as your cpu or NB being that hot.... WOW. The temperature of your NB and CPU going up tells me that the water is going back to the pump hotter then it used too and the radiator is not able to cycle all the heat out of it effectively. One thing you could do is increase the efficiency of your radiator. There are two ways to do that being either bigger/higher flow fans, a larger radiator or second radiator. Share this post Link to post Share on other sites More sharing options...
emperor496 Posted February 19, 2011 Posted February 19, 2011 Yes, When I was watercooling my GTX260 the temperature of my GPU would go from 40-45c and my cpu while gaming would hang around 50 tops with varying loads. But as far as your cpu or NB being that hot.... WOW. The temperature of your NB and CPU going up tells me that the water is going back to the pump hotter then it used too and the radiator is not able to cycle all the heat out of it effectively. One thing you could do is increase the efficiency of your radiator. There are two ways to do that being either bigger/higher flow fans, a larger radiator or second radiator. Does it mean that the water effectively cooling the GPU, and the hot water from the GPU insufficiently cooled by the radiator, thus hot water sent to the CPU & NB and ineffectively cooling the CPU & NB..? Correct me if I'm wrong.. Share this post Link to post Share on other sites More sharing options...
Speedway Posted February 19, 2011 Posted February 19, 2011 Does it mean that the water effectively cooling the GPU, and the hot water from the GPU insufficiently cooled by the radiator, thus hot water sent to the CPU & NB and ineffectively cooling the CPU & NB..? Correct me if I'm wrong.. Ideally, you would have a 2nd rad after the north bridge and before the gpu Basically your cpu & nb are heating the water up, then you are sending warmer water through your gpu, and the rad you have is prob under powered for the entire loop. But, you also are seeing under 70C cpu load, and under 50C gpu load, so your looking good on both However if you want to be able to get more out of your cpu (and gpu), then like I said, put a 2nd rad in between the nb and gpu Share this post Link to post Share on other sites More sharing options...
emperor496 Posted February 20, 2011 Posted February 20, 2011 Ideally, you would have a 2nd rad after the north bridge and before the gpu Basically your cpu & nb are heating the water up, then you are sending warmer water through your gpu, and the rad you have is prob under powered for the entire loop. But, you also are seeing under 70C cpu load, and under 50C gpu load, so your looking good on both However if you want to be able to get more out of your cpu (and gpu), then like I said, put a 2nd rad in between the nb and gpu If the warmer water from the CPU & NB sent to the GPU, why the GPU temperature only increase by 1 or 2degC under load. Shouldn't it be warmer? Am I missing something here? Share this post Link to post Share on other sites More sharing options...
Waco Posted February 20, 2011 Posted February 20, 2011 Basically your cpu & nb are heating the water up, then you are sending warmer water through your gpu, and the rad you have is prob under powered for the entire loop. If his rad was undersized he'd see a rise in water temp - it doesn't seem like he is considering the GPU stays pretty constant. My system is similar - my CPU temps can jump nearly 30 degrees without my GPU moving more than a couple degrees above idle temps. Share this post Link to post Share on other sites More sharing options...
Speedway Posted February 20, 2011 Posted February 20, 2011 If the warmer water from the CPU & NB sent to the GPU, why the GPU temperature only increase by 1 or 2degC under load. Shouldn't it be warmer? Am I missing something here? Once your system has been running, the water warms and gets to an equilibruim point. So like I said in my original post, your temps are solid! But adding the 2nd rad ( I said ideally, which may not be realistically ) would do 2 things to the loop: 1. The water temps coming out of the rad are usually going to be a few degrees cooler, which now both the cpu and gpu benefit from. - Just a bonus 2. The water temp equilibrium would also drop with the added cooling - Main objective If his rad was undersized he'd see a rise in water temp - it doesn't seem like he is considering the GPU stays pretty constant. My system is similar - my CPU temps can jump nearly 30 degrees without my GPU moving more than a couple degrees above idle temps. When the computer is off, the water temps will match the ambient (room) temp, no matter what you see a raise in water temps as soon as you power on the computer. The rad is going to factor into the cooling of those raising water temps, whether the rad is undersized or over sized for that matter The difference being how well that rad can effectly cool the rising water temps coming from the heat produced. But even an undersized rad will have cooling affects with a fan blowing room temp air across the fins The fact that his gpu can maintain similiar load temps to idle is nice, which is why I said his temps on both the cpu and gpu looked fine. Basically was just saying, if he wants to OC higher, another res between the nb and gpu would drop both cpu and gpu temps, making a "zoned" effect for both and probably create more OCing headroom Share this post Link to post Share on other sites More sharing options...
emperor496 Posted February 20, 2011 Posted February 20, 2011 ok.. got the idea.. at least my temperature profiles are in range.. Share this post Link to post Share on other sites More sharing options...
Speedway Posted February 20, 2011 Posted February 20, 2011 ok.. got the idea.. at least my temperature profiles are in range.. Exactly, running load under 70C cpu and 45C gpu is a good thing It was never asked, but what size/brand rad are you using? Share this post Link to post Share on other sites More sharing options...
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