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A new heatsink compound (thermal grease)
Hello All
Henkel Loctite have released a new heatsink compound which comes in the form of a bar of material, deployed rather like a lip-stick. You rub it on the heatsink/component interface and it applies an appropriate layer of solid material. under high clamping pressures, the solid undergoes a change to a liquid at 60 deg C (approx. 150 deg F) and is forced into all the tiny gaps (present due to imperfections, machining tolerances etc.). The thermal conductivity is 20% lower than the usual thermal grease - it says it's 0.03 degC/W at 20psi clamping pressure, dropping to 0.02 degC/W at 100psi - and gives 100% surface wetting with easy application, it says. My Prescott, o/c from 3 to 3.3 GHz, is running at stock voltages with the stock Intel heastink. CPU temps reported by MBM5 (Abit AI7) are 60-62 deg C. I plan to re-mount the heatsink having applied some of this thermstrate, and I'll let you know if I see a drop in temperature. The current heatsink compound is the usual white alumina-loaded stuff. Here's some info on thermstrate: http://makeashorterlink.com/?D4F321069 Does anybody know what the thermal conductivity is that's quoted for the silver-loaded materials? Cheers RMC, England |
#2
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"RMC" wrote in message ... Hello All Henkel Loctite have released a new heatsink compound which comes in the form of a bar of material, deployed rather like a lip-stick. You rub it on the heatsink/component interface and it applies an appropriate layer of solid material. under high clamping pressures, the solid undergoes a change to a liquid at 60 deg C (approx. 150 deg F) and is forced into all the tiny gaps (present due to imperfections, machining tolerances etc.). The thermal conductivity is 20% lower than the usual thermal grease - it says it's 0.03 degC/W at 20psi clamping pressure, dropping to 0.02 degC/W at 100psi - and gives 100% surface wetting with easy application, it says. My Prescott, o/c from 3 to 3.3 GHz, is running at stock voltages with the stock Intel heastink. CPU temps reported by MBM5 (Abit AI7) are 60-62 deg C. I plan to re-mount the heatsink having applied some of this thermstrate, and I'll let you know if I see a drop in temperature. The current heatsink compound is the usual white alumina-loaded stuff. Here's some info on thermstrate: http://makeashorterlink.com/?D4F321069 Does anybody know what the thermal conductivity is that's quoted for the silver-loaded materials? Cheers RMC, England I'm running a Prescott 3.0, not overclocked at all. I've got a Cooler Master "Aero 4 Lite". http://www.coolermaster.com/index.ph...ero%204%20Lite With the stock thermal pad, I have not seen my Prescott go higher than 102F under load. In fact, it's usually about 90F idle and goes up to just UNDER 100F under load. 102F was the very highest temperature I've seen. I use the speed control to set the fan at 2700RPM, as anything higher is noticeably louder, as far as noise goes. I don't overclock any processor, at all. But I COULD overclock the Prescott to 3.3 and still keep it down to about ~100F under load, simply by cranking up the RPM of the cooler to maximum. 150F is hot as Hell. I've seen that on a Prescott, but only in a case where I *expected* to see such high temperatures, due to overall poor air circulation in the system itself. Yeah, 150F may be within normal operating range, but as you can easily drop that temperature by a third, why wouldn't you? I think you need a new cooler as well as a change in thermal ompound. -Dave |
#3
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Where did you buy it at.
John.H. Dave C. wrote: "RMC" wrote in message ... Hello All Henkel Loctite have released a new heatsink compound which comes in the form of a bar of material, deployed rather like a lip-stick. You rub it on the heatsink/component interface and it applies an appropriate layer of solid material. under high clamping pressures, the solid undergoes a change to a liquid at 60 deg C (approx. 150 deg F) and is forced into all the tiny gaps (present due to imperfections, machining tolerances etc.). The thermal conductivity is 20% lower than the usual thermal grease - it says it's 0.03 degC/W at 20psi clamping pressure, dropping to 0.02 degC/W at 100psi - and gives 100% surface wetting with easy application, it says. My Prescott, o/c from 3 to 3.3 GHz, is running at stock voltages with the stock Intel heastink. CPU temps reported by MBM5 (Abit AI7) are 60-62 deg C. I plan to re-mount the heatsink having applied some of this thermstrate, and I'll let you know if I see a drop in temperature. The current heatsink compound is the usual white alumina-loaded stuff. Here's some info on thermstrate: http://makeashorterlink.com/?D4F321069 Does anybody know what the thermal conductivity is that's quoted for the silver-loaded materials? Cheers RMC, England I'm running a Prescott 3.0, not overclocked at all. I've got a Cooler Master "Aero 4 Lite". http://www.coolermaster.com/index.ph...ero%204%20Lite With the stock thermal pad, I have not seen my Prescott go higher than 102F under load. In fact, it's usually about 90F idle and goes up to just UNDER 100F under load. 102F was the very highest temperature I've seen. I use the speed control to set the fan at 2700RPM, as anything higher is noticeably louder, as far as noise goes. I don't overclock any processor, at all. But I COULD overclock the Prescott to 3.3 and still keep it down to about ~100F under load, simply by cranking up the RPM of the cooler to maximum. 150F is hot as Hell. I've seen that on a Prescott, but only in a case where I *expected* to see such high temperatures, due to overall poor air circulation in the system itself. Yeah, 150F may be within normal operating range, but as you can easily drop that temperature by a third, why wouldn't you? I think you need a new cooler as well as a change in thermal ompound. -Dave |
#4
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"John H." wrote in message ... Where did you buy it at. John.H. I'm running a Prescott 3.0, not overclocked at all. I've got a Cooler Master "Aero 4 Lite". http://www.coolermaster.com/index.ph...ero%204%20Lite With the stock thermal pad, I have not seen my Prescott go higher than 102F under load. In fact, it's usually about 90F idle and goes up to just UNDER 100F under load. 102F was the very highest temperature I've seen. I use the speed control to set the fan at 2700RPM, as anything higher is noticeably louder, as far as noise goes. I don't overclock any processor, at all. But I COULD overclock the Prescott to 3.3 and still keep it down to about ~100F under load, simply by cranking up the RPM of the cooler to maximum. 150F is hot as Hell. I've seen that on a Prescott, but only in a case where I *expected* to see such high temperatures, due to overall poor air circulation in the system itself. Yeah, 150F may be within normal operating range, but as you can easily drop that temperature by a third, why wouldn't you? I think you need a new cooler as well as a change in thermal ompound. -Dave I bought it from Newegg, for less than twenty bucks, from memory. If you run a search of froogle for aero 4 lite, you will get plenty of hits. It's a relatively cheap cooler, and VERY effective. -Dave http://froogle.google.com/froogle_advanced_search |
#5
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Where did you buy the thermstrate tc compound.
Dave C. wrote: "John H." wrote in message ... Where did you buy it at. John.H. I'm running a Prescott 3.0, not overclocked at all. I've got a Cooler Master "Aero 4 Lite". http://www.coolermaster.com/index.ph...ero%204%20Lite With the stock thermal pad, I have not seen my Prescott go higher than 102F under load. In fact, it's usually about 90F idle and goes up to just UNDER 100F under load. 102F was the very highest temperature I've seen. I use the speed control to set the fan at 2700RPM, as anything higher is noticeably louder, as far as noise goes. I don't overclock any processor, at all. But I COULD overclock the Prescott to 3.3 and still keep it down to about ~100F under load, simply by cranking up the RPM of the cooler to maximum. 150F is hot as Hell. I've seen that on a Prescott, but only in a case where I *expected* to see such high temperatures, due to overall poor air circulation in the system itself. Yeah, 150F may be within normal operating range, but as you can easily drop that temperature by a third, why wouldn't you? I think you need a new cooler as well as a change in thermal ompound. -Dave I bought it from Newegg, for less than twenty bucks, from memory. If you run a search of froogle for aero 4 lite, you will get plenty of hits. It's a relatively cheap cooler, and VERY effective. -Dave http://froogle.google.com/froogle_advanced_search |
#6
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"John H." wrote in message ... Where did you buy the thermstrate tc compound. I bought it from Newegg, for less than twenty bucks, from memory. If you run a search of froogle for aero 4 lite, you will get plenty of hits. It's a relatively cheap cooler, and VERY effective. -Dave http://froogle.google.com/froogle_advanced_search I didn't. The thermal compound came as part of the cooler, pre-applied to the bottom of the cooler, in the area where the cooler contacts the socket 478 processor. It had a plastic dish type thing on the bottom of the cooler to protect the thermal compound. You remove the plastic dish thingie, set the cooler on the processor, clip the heatsink to the motherboard brackets, plug the fan into a (hard drive type) power connector, install the control knob in an expansion slot or floppy bay, then plug the RPM sensor wire into the motherboard's CPU FAN connector. DONE! No messing around with thermal compound, unless you want to. But with a Prescott running at ~100F under load with stock thermal compound, why bother changing it? -Dave |
#7
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RMC wrote:
Hello All Henkel Loctite have released a new heatsink compound which comes in the form of a bar of material, deployed rather like a lip-stick. You rub it on the heatsink/component interface and it applies an appropriate layer of solid material. under high clamping pressures, the solid undergoes a change to a liquid at 60 deg C (approx. 150 deg F) and is forced into all the tiny gaps (present due to imperfections, machining tolerances etc.). The thermal conductivity is 20% lower than the usual thermal grease - it says it's 0.03 degC/W at 20psi clamping pressure, dropping to 0.02 degC/W at 100psi - and gives 100% surface wetting with easy application, it says. My Prescott, o/c from 3 to 3.3 GHz, is running at stock voltages with the stock Intel heastink. CPU temps reported by MBM5 (Abit AI7) are 60-62 deg C. I plan to re-mount the heatsink having applied some of this thermstrate, and I'll let you know if I see a drop in temperature. The current heatsink compound is the usual white alumina-loaded stuff. Here's some info on thermstrate: http://makeashorterlink.com/?D4F321069 Does anybody know what the thermal conductivity is that's quoted for the silver-loaded materials? Cheers RMC, England Having had an expensive lesson from Intel on 'solid' thermal compounds, I'm very leery. Of course, Intel's boxed heatsink comes with their thermal pad already stuck on there. When the P4 gets hot, it melts to fill everything in like your product. Well, I was getting over heating on my P4 3.0 GHz HT. I noticed that the heatsink fins were covered in dust. So, I opened it up and unstrapped the heatsink. Then I pulled and had to pull hard. It came out, but with the P4 still glued to the heatsink. That room temp, solid thermal pad worked like construction adhesive. I was able to get them apart, but it took a bit. A few pins were bent, but not off. So, I straightened them - carefully. Alas, something got broken. I had to replace both the processor and the mobo. That was an expensive lesson. Therefore, I will only be using thermal conductors that won't be glue when and if I ever need to take them apart. Clyde |
#8
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1 Question........... why did you remove the HS for just a 'blow out'
cleaning? "Clyde" wrote in message news:3iD5d.373445$8_6.302438@attbi_s04... RMC wrote: Hello All Henkel Loctite have released a new heatsink compound which comes in the form of a bar of material, deployed rather like a lip-stick. You rub it on the heatsink/component interface and it applies an appropriate layer of solid material. under high clamping pressures, the solid undergoes a change to a liquid at 60 deg C (approx. 150 deg F) and is forced into all the tiny gaps (present due to imperfections, machining tolerances etc.). The thermal conductivity is 20% lower than the usual thermal grease - it says it's 0.03 degC/W at 20psi clamping pressure, dropping to 0.02 degC/W at 100psi - and gives 100% surface wetting with easy application, it says. My Prescott, o/c from 3 to 3.3 GHz, is running at stock voltages with the stock Intel heastink. CPU temps reported by MBM5 (Abit AI7) are 60-62 deg C. I plan to re-mount the heatsink having applied some of this thermstrate, and I'll let you know if I see a drop in temperature. The current heatsink compound is the usual white alumina-loaded stuff. Here's some info on thermstrate: http://makeashorterlink.com/?D4F321069 Does anybody know what the thermal conductivity is that's quoted for the silver-loaded materials? Cheers RMC, England Having had an expensive lesson from Intel on 'solid' thermal compounds, I'm very leery. Of course, Intel's boxed heatsink comes with their thermal pad already stuck on there. When the P4 gets hot, it melts to fill everything in like your product. Well, I was getting over heating on my P4 3.0 GHz HT. I noticed that the heatsink fins were covered in dust. So, I opened it up and unstrapped the heatsink. Then I pulled and had to pull hard. It came out, but with the P4 still glued to the heatsink. That room temp, solid thermal pad worked like construction adhesive. I was able to get them apart, but it took a bit. A few pins were bent, but not off. So, I straightened them - carefully. Alas, something got broken. I had to replace both the processor and the mobo. That was an expensive lesson. Therefore, I will only be using thermal conductors that won't be glue when and if I ever need to take them apart. Clyde |
#9
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the P4 still glued to the heatsink. That room temp, solid thermal pad
worked like construction adhesive. Therefore, I will only be using thermal conductors that won't be glue when and if I ever need to take them apart. I know what you mean - the same thing happened to a friend of mine. However, the material that I am highlighting goes on as a very very thin, non-adhesive layer. In fact, one of the salient points is that it remains workable throughout its life and will not act as a glue. My original post is a little unclear when I talk about its thermal conductivity being 20% less. What I meant to imply (from the product's datasheet) is that its thermal resitstance is 20% less, i.e. the thermal conductivity is 20 % *better* than normal white paste. I need to now find out the thermal conductivity ofthe silver-loaded material so I can do some sums. Formy part, I plan on taking the stock SHF assembly off, cleaning the white compound off (that I used in place of the Intel TIM) and trying this new stuff. If the rsults get me lower temps, then that's that. I intend to play with other HSFs as a matter of course, including the new Thermaltake BigWater, which sounds very good VFM. Cheers RMC, England |
#10
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Dave
air circulation in the system itself. Yeah, 150F may be within normal operating range, but as you can easily drop that temperature by a third, why wouldn't you? Yes, I am aware that additional cooling will further drop the temperatures. I was including the figures here as a reference to the fact that they are my reference point, from which I can determine any change in performance as a function of heatsink compound, all other factors remaining unchanged. There are a variety of additional factors which contribute towards CPU cooling and I am looking at those separately. RMC, England |
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