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Graphics cards (GPUs) :
cooling the beast
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Send message Joined: 2 Mar 09 Posts: 159 Credit: 13,639,818 RAC: 0 Level ![]() Scientific publications ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
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i just found a new method of reducing the heat in room: SOCKS! if you have a couple of old pairs of socks or cloth that you can have close to your exhaust, they make for good heat absorbers. i just started doing this were the exhaust for my laptop is pretty hot running boinc, i've put a pair of socks at the exhaust slot and the heat from the laptop is absorb by the socks and keeps the temperature down. noise dampening too. crazy but inventive. |
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Send message Joined: 17 Aug 08 Posts: 2705 Credit: 1,311,122,549 RAC: 0 Level ![]() Scientific publications ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Yes, crazy. And you forgot one thing: the socks have to be old, but freshly taken off! So they're still wet.. the more, the better. Now the hot air enters, evaporates the liquid and thus cools down. The problem is that this process is limited by the speed you can provide new fluid soaked socks and the relative humidity in your room. If the socks get dry all you do is build up the heat within your computer, which increases the power consumption of chips (and thus generates even more heat) and at the end of the day the evil thermodynamics dictate that the heat has to be transferred into the room anyway ;) MrS Scanning for our furry friends since Jan 2002 |
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Send message Joined: 2 Mar 09 Posts: 159 Credit: 13,639,818 RAC: 0 Level ![]() Scientific publications ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
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adding a fan using some Jerry wiring(zip ties) and put a extra case fan on the backside of the cpu heat pipe tower can decrease the thermal temp of the cpu because of the airflow being twice as strong compare to a front fan... cpu temps are a few degree Celsius cooler... every little bit helps... average cooled down by 5C from 55C to 50/49 c under 100% use. may make the energy use jump a bit, but cooler temps is good price to pay. Dell xps 420 stock q6600 cooler... |
skgivenSend message Joined: 23 Apr 09 Posts: 3968 Credit: 1,995,359,260 RAC: 0 Level ![]() Scientific publications ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
From experience I would actually expect your total energy consumption to stay about the same or perhaps drop! The cost of running one CPU fan is often more than one running one CPU fan plus one or possibly two case fans, especially with a big GPU inside the case. This is because the cost of running one CPU fan very fast is more than running 2 or 3 fans fairly slowly. It's like a car, take it over 60mph and you start using increasing amounts of fuel per mile. It takes a lot more effort to run a fan very fast. The CPU will also draw more energy when its running hot. The same for all the other components. If you like quiet, get big fans that pull plenty of air while running sloooowww. By the way, stock coolers are not good value for money, but if you have a Dell who knows what else would actually fit! |
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Send message Joined: 2 Mar 09 Posts: 159 Credit: 13,639,818 RAC: 0 Level ![]() Scientific publications ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
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From experience I would actually expect your total energy consumption to stay about the same or perhaps drop! correct, the holes are not to atx standard.... but here's the thing, none of the fans are PWM and their are 4 fans in the case now, 2 intake, 1 exhaust, and one sitting behind the stock cooler. |
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Send message Joined: 2 Mar 09 Posts: 159 Credit: 13,639,818 RAC: 0 Level ![]() Scientific publications ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
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Ok, my cpu right now with it being about 63 F outside is running under full load at 40C-45C, thats down 10 Degrees from normal mid-day operating temps.... and i'm pretty sure the operating temp last night dropped under 40C.... i'll take a temperature reading tonight to see. low's 40's, upper 30's is the prediction. and my room turns into an ice box, but i can live with it for about another week. Football season of camera work made my skin thick to the cold weather (except my hands)..... oh yeah, my gpu temp is about 8 C below normal gpugrid processing temp. |
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Send message Joined: 2 Mar 09 Posts: 159 Credit: 13,639,818 RAC: 0 Level ![]() Scientific publications ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
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Ok, my cpu right now with it being about 63 F outside is running under full load at 40C-45C, thats down 10 Degrees from normal mid-day operating temps.... highest temp of the 4 cores.. 40 c at 9:40 pm est. |
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