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#1
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ASUS P6T6 Revolution hits 5.61 GHz
See:
http://hothardware.com/News/Asus--Co...-of-561122MHz/ If money is no constraint, go for it. It's a new world record for the Core i7 CPU. Allot of interest in the P6T all of a sudden. Interesting. William |
#2
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ASUS P6T6 Revolution hits 5.61 GHz
"William" wrote in message acquisition... See: http://hothardware.com/News/Asus--Co...-of-561122MHz/ If money is no constraint, go for it. It's a new world record for the Core i7 CPU. Allot of interest in the P6T all of a sudden. Interesting. William it doesnt say what he used for cooling, liquid nitrigen? Pokeyman |
#3
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ASUS P6T6 Revolution hits 5.61 GHz
pokey man wrote:
"William" wrote in message acquisition... See: http://hothardware.com/News/Asus--Co...-of-561122MHz/ If money is no constraint, go for it. It's a new world record for the Core i7 CPU. Allot of interest in the P6T all of a sudden. Interesting. William it doesnt say what he used for cooling, liquid nitrigen? Pokeyman You can check the top 100 here, and see what they use. My guess is a metal cylinder full of LN2. Some here are using cascade. There is a water cooled one at 4.5GHz. http://www.hwbot.org/listResults.do?...true&limit=100 (A cascade...) http://www.net7.info/1/cascade4/1/4/DSC00498.jpg I like the cascades, just for the sheer amount of work that goes into them. Paul |
#4
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ASUS P6T6 Revolution hits 5.61 GHz
"pokey man" wrote:
"William" wrote in message acquisition... See: http://hothardware.com/News/Asus--Co...rd-of-561122MH z/ If money is no constraint, go for it. It's a new world record for the Core i7 CPU. Allot of interest in the P6T all of a sudden. Interesting. William it doesnt say what he used for cooling, liquid nitrigen? Pokeyman Or frozen in a block of ice? -- - |
#5
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ASUS P6T6 Revolution hits 5.61 GHz
"Paul" wrote in message ... pokey man wrote: "William" wrote in message acquisition... See: http://hothardware.com/News/Asus--Co...-of-561122MHz/ If money is no constraint, go for it. It's a new world record for the Core i7 CPU. Allot of interest in the P6T all of a sudden. Interesting. William it doesnt say what he used for cooling, liquid nitrigen? Pokeyman You can check the top 100 here, and see what they use. My guess is a metal cylinder full of LN2. Some here are using cascade. There is a water cooled one at 4.5GHz. http://www.hwbot.org/listResults.do?...true&limit=100 (A cascade...) http://www.net7.info/1/cascade4/1/4/DSC00498.jpg I like the cascades, just for the sheer amount of work that goes into them. Paul why do you call it a cascade... thats a phase change (air conditioner) machine and what is LN2? liquid nitrogen? Pokeyman |
#6
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ASUS P6T6 Revolution hits 5.61 GHz
pokey man wrote:
why do you call it a cascade... thats a phase change (air conditioner) machine and what is LN2? liquid nitrogen? Pokeyman You can find more info on all forms of cooling for overclocking, on this site. I don't really visit here all that often, so I don't keep good note of all the stuff they do. http://www.xtremesystems.org/forums/ LN2 is liquid nitrogen. -196C Some people get their hands on that, while they're at university. The cascade in the picture I linked to, was a three stage. You can tie refrigeration loops together, so that the heat from one loop is dumped into the next. The end result, is the last loop has extremely cold output, like -115C. The processor being overclocked, dumps a lot of heat, and the cascade temperature rises depending on the number of watts of heat being pumped. So there is a no-load temperature, and then there is the temperature under load. I understand there is also some scheme that uses mixed gases, more than one refrigerant. That allows low temperatures to be achieved, but with only one compressor. Dry ice is CO2, and it is good for -78C. That is what you use, if you cannot get liquid nitrogen. Both liquid nitrogen and dry ice can give you skin burns (I've been zapped by both, just enough to learn...). At one time, dry ice used to be relatively easy to get, but I was never interested enough to try. I don't think it is handed out quite as easily now. (At one time, you could get it from the local ice cream company, in small quantities. They used to use it for local transportation, to keep the product rock solid.) With any of those methods, you have to avoid condensation around the cooling head. Some people use neoprene sheets, placed so that room air cannot come in contact with the sub-ambient bits. Motherboards don't last too long, if you allow condensation to form, due to using the materials or devices above. In some cases, the motherboards die in about six months from those kinds of experiments. And that is where water cooling comes in. Since water cooling doesn't go below ambient, that is a safe way to cool more aggressively than with just air cooling alone. No need for neoprene sheets and goop, with water. So you can get a better overclock on water, than with air. This range of techniques yields a large variation in overclocks. In some recent results for example, each technique gives about 1GHz more than its warmer competitor. There is a limit to how cold you can go, and still have the semiconductors work. I'm really surprised the stuff still works when LN2 is applied. I presume the temperature of the processor, doesn't go all the way down to -196C. The LN2 would boil vigorously, and like the cascade, the resulting temp will be above the -196C figure. Fun stuff, if you can afford it. If you check this old thread (no longer updated), you'll notice that older technologies, actually had better peak overclocking rates. Like a P4 670 (3.8GHz) at 7.6GHz. The newer technologies give better computing results, because they do more operations in parallel per clock cycle. But in terms of "best clocks", some of the older stuff gave better results. Not that it matters. http://www.xtremesystems.org/forums/...ad.php?t=59753 Paul |
#7
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ASUS P6T6 Revolution hits 5.61 GHz
"Paul" wrote in message ... pokey man wrote: why do you call it a cascade... thats a phase change (air conditioner) machine and what is LN2? liquid nitrogen? Pokeyman You can find more info on all forms of cooling for overclocking, on this site. I don't really visit here all that often, so I don't keep good note of all the stuff they do. http://www.xtremesystems.org/forums/ LN2 is liquid nitrogen. -196C Some people get their hands on that, while they're at university. The cascade in the picture I linked to, was a three stage. You can tie refrigeration loops together, so that the heat from one loop is dumped into the next. The end result, is the last loop has extremely cold output, like -115C. The processor being overclocked, dumps a lot of heat, and the cascade temperature rises depending on the number of watts of heat being pumped. So there is a no-load temperature, and then there is the temperature under load. I understand there is also some scheme that uses mixed gases, more than one refrigerant. That allows low temperatures to be achieved, but with only one compressor. Dry ice is CO2, and it is good for -78C. That is what you use, if you cannot get liquid nitrogen. Both liquid nitrogen and dry ice can give you skin burns (I've been zapped by both, just enough to learn...). At one time, dry ice used to be relatively easy to get, but I was never interested enough to try. I don't think it is handed out quite as easily now. (At one time, you could get it from the local ice cream company, in small quantities. They used to use it for local transportation, to keep the product rock solid.) With any of those methods, you have to avoid condensation around the cooling head. Some people use neoprene sheets, placed so that room air cannot come in contact with the sub-ambient bits. Motherboards don't last too long, if you allow condensation to form, due to using the materials or devices above. In some cases, the motherboards die in about six months from those kinds of experiments. And that is where water cooling comes in. Since water cooling doesn't go below ambient, that is a safe way to cool more aggressively than with just air cooling alone. No need for neoprene sheets and goop, with water. So you can get a better overclock on water, than with air. This range of techniques yields a large variation in overclocks. In some recent results for example, each technique gives about 1GHz more than its warmer competitor. There is a limit to how cold you can go, and still have the semiconductors work. I'm really surprised the stuff still works when LN2 is applied. I presume the temperature of the processor, doesn't go all the way down to -196C. The LN2 would boil vigorously, and like the cascade, the resulting temp will be above the -196C figure. Fun stuff, if you can afford it. If you check this old thread (no longer updated), you'll notice that older technologies, actually had better peak overclocking rates. Like a P4 670 (3.8GHz) at 7.6GHz. The newer technologies give better computing results, because they do more operations in parallel per clock cycle. But in terms of "best clocks", some of the older stuff gave better results. Not that it matters. http://www.xtremesystems.org/forums/...ad.php?t=59753 Paul thanks for the review, paul. already knew most of it, except cascade. you can buy dry ice at meijers and some walmarts, however, most of these procedures are impractical for regular use. the cold on the processor allows it to go from a semi conductor to a super conductor because the resistance in the circuits goes down as the temp goes down... theoretically, at absoulte zero, resistance would be zero.. if i remember correctly from my electronics engineering courses back in college. cheers Pokeyman |
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