Subject: Cases and Cooling | August 11, 2018 - 11:24 PM | Scott Michaud
Tagged: thermal paste
A couple of weeks ago, GamersNexus published a video and article that benchmarked CPU performance across various thermal paste patterns. It’s well established that the best method of applying the compound is to spread it out as thin as possible, so it fills the gaps with something better than air but doesn’t insulate the parts that would naturally make perfect contact. That takes effort, though, and it’s not clear how much that buys you for modern CPUs with integrated heat-spreaders (IHS).
Video credit: GamersNexus
If you’re attaching a heatsink to a GPU or other bare die ASIC? Different story. Their tests are focused on CPUs with heat spreaders.
Long story short? Not so much difference. The “pea sized” method had a little issue because it didn’t fully cover the IHS, but they went on with the tests because it’s supposed to reflect real-world situations, and that was a real-world type of error. Even still, that corresponded to less than a degree Celsius under load (as measured on an Intel Core i7-8086k). The article mentions something about delidding the CPU, although the photos clearly have an IHS (and that’s the point of the test in the first place) so I’m guessing they only took the IHS off temporarily and replaced it.
It’s interesting how close they ended up. I would have thought that 30 minutes of full load would show at least a few degrees of variance, but apparently not, even with a little patch of uncovered space.
Subject: Processors | February 16, 2018 - 08:52 AM | Sebastian Peak
Tagged: tim, thermal paste, Ryzen 5 2400G, ryzen, overclocking, der8aur, delidding, APU, amd
Overclocker der8auer has posted a video demonstrating the delidding process of the AMD Ryzen 5 2400G, and his findings on its effect on temperatures and overclocking headroom.
The delidded Ryzen 5 2400G (image credit der8auer via YouTube)
The full video is embedded below:
The results are interesting, but disappointing from an overclocking standpoint, as he was only able to increase his highest frequency by 25 MHz. Thermals were far more impressive, as the liquid metal used in place of the factory TIM did lower temps considerably.
Here are his temperature results for both the stock and overclocked R5 2400G:
The process was actually quite straightforward, and used an existing Intel delidding tool (the Delid Die Mate 2) along with a small piece of acrylic to spread the force against the PCB.
Delidding the Ryzen 5 2400G (image credit der8auer via YouTube)
The Ryzen 5 2400G is using thermal paste and is not soldered, which enables this process to be reasonably safe - or as safe as delidding a CPU and voiding your warranty ever is. Is it worth it for lower temps and slight overclocking gains? That's up to the user, but integration of an APU like this invites small form-factors that could benefit from the lower temps, especially with low-profile air coolers.
Subject: Cases and Cooling | January 26, 2017 - 04:02 PM | Jeremy Hellstrom
Tagged: thermal paste, Arctic Silver, Arctic MX, cooler master, MasterGel Pro, CRYORIG, EKWB, thermal grizzly
Kitguru just tested seven thermal pastes; Arctic Silver 5 and Céramique 2, Cooler Master's MasterGel Pro, Cryorig CP15, EKWB Ectotherm and Thermal Grizzly Kryonaut. They wanted to see what performance difference, if any, existed between them for no matter how effective your cooler is, it can't dissipate heat that is not transferred to it from your CPU. Their test was conducted with a i7-4790K CPU and Cooler Master Hyper 212 LED CPU Cooler and the results show that the incumbent is not necessarily your best choice.
"Following on from our previous articles about fan configuration and static pressure vs airflow fans, today we are looking at thermal paste. Specifically, we are hoping to find out whether or not choosing different types of thermal paste actually makes any difference. To do this, we test 7 products from 6 companies to see how much difference thermal paste really makes."
Here are some more Cases & Cooling reviews from around the web:
- Alphacool Eisbaer 360 Liquid CPU Cooling System Review @ NikKTech
- be quiet! Pure Base 600 Chassis @ Kitguru
- Jonsbo UMX4 @ techPowerUp
- Phanteks Enthoo Luxe Tempered Glass Edition Review @ NikKTech
Subject: General Tech, Processors | August 24, 2014 - 03:33 AM | Scott Michaud
Tagged: Intel, Haswell-E, Ivy Bridge-E, haswell, solder, thermal paste
Sorry for being about a month late to this news. Apparently, someone got their hands on an Intel Core i7-5960X and they wanted to see its eight cores. Removing the lid, they found that it was soldered directly onto the die with an epoxy, rather than coated with a thermal paste. While Haswell-E will still need to contend with the limitations of 22nm, and how difficult it becomes to exceed various clockspeed ceilings, the better ability to dump heat is always welcome.
Image Credit: OCDrift
While Devil's Canyon (Core i7 4970K) used better thermal paste, the method used with Haswell-E will be event better. I should note that Ivy Bridge-E, released last year, also contained a form of solder under its lid and its overclocking results were still limited. This is not an easy path to ultimate gigahertz. Even so, it is nice that Intel, at least on their enthusiast line, is spending that little bit extra to not introduce artificial barriers.
Subject: Cases and Cooling | March 20, 2013 - 04:02 PM | Jeremy Hellstrom
Tagged: annealed pyrolytic graphite, cooling, exotic materials, thermal paste
Efficient cooling has always and will always be a limiter on the power of processors, especially as the processes used shrink and transistor density increases. Over the years we have seen heatpipes become common and watercooling move into the mainstream with the advent of all-in-one coolers. Thermal interface material has not changed much, even though we have heard of many developments nothing has been released to market. Carbon black proved to be too long in development and might be replaced by nanotube forests though there is do it yourself thermal paste doped with diamonds that you can make right now.
From there we saw a project doping thermal paste with graphene, which could provide conductivity of up to 600 W/mK once it becomes available, hopefully in sheet form for easy installation. Increasing the thermal conductivity of your TIM is a good thing, assuming that the heatsink absorbing the heat can keep up with the transfer which is what makes the news out of FrostyTech so interesting. Researchers are sandwiching a material they call K-Core Annealed Pyrolytic Graphite in between layers of aluminium and other metals to create a heatsink with a thermal conductivity of up to 1092W/mK in certain situations. It is not as simple as doping a heatsink with this new material though, it is only efficient at moving heat horizontally. Read on to find out more at FrostyTech.
"When the thermal conductivity of copper and aluminum heat spreaders just won't cut it, the future revolves around a material called Annealed Pyrolytic Graphite. Let's consider the numbers: where a solid aluminum heat spreader has a thermal conductivity of 126W/mK, the same heatspreader with an Annealed Pyrolytic Graphite core would see thermal conductivity on the order of 1092 W/mK. That's not a typo."
Here are some more Cases & Cooling reviews from around the web:
- Zalman FX100 CPU Cooler Review @ Hardware Secrets
- Noctua NH-L9i Review @ HCW
- Thermalright Silver Arrow SB-E Special Edition @ Kitguru
- Prolimatech Megahalems Red Series CPU Cooler Review @ Hardware Secrets
- Noctua NH-L12 @ techPowerUp
- DeepCool IceBlade Pro V2.0 Heatsink Review @ Frostytech
Scythe Kabuto II CPU Cooler Review @ Hardware Secrets
- Enermax ELC 240 Liquid CPU Cooler @ eTeknix
- Corsair Hydro Series H110 Liquid CPU Cooler @ eTeknix
- Corsair Hydro Series H110 Review @ OCC
- Corsair Hydro Series H110 AIO CPU Cooler @ Tweaktown
- Corsair Hydro H110 280mm AiO CPU Cooler Review @ Pro-Clockers
Compact Liquid Cooling Systems Roundup. Part I: Water on a Budget @ X-bit Labs
- NZXT Phantom 630 Computer Case @ Benchmark Reviews
- Zalman Z11 Plus @ Hardware.info
- IN WIN GT1 Mid-Tower ATX @ [H]ard|OCP
- Anidees AI-06W Midi Tower Review @ NikKTech
- Cooltek Coolcube Black @ techPowerUp
- Sharkoon REX8 Value Chassis @ eTeknix
- CM Storm Scout II Advanced Chassis @ eTeknix
- Nanoxia Deep Silence 2 Mid-Tower @ Tweaktown
- In Win D-Frame @ techPowerUp
- Coolermaster Centurion 6 @ Rbmods
Subject: General Tech | July 17, 2012 - 04:31 PM | Jeremy Hellstrom
Tagged: sony, tim, thermal paste, thermal sheet
Say goodbye to messy thermal paste and the time you spent cleaning up the goop that ended up somewhere it shouldn't thanks to Sony's new thermal sheet. In fact it looks like this new thermal interface material is so easy to use you could do it blindfolded! The demonstrated performance is equal to that of traditional thermal paste, with Sony claiming a much longer effective lifespan. At 0.3mm thick it will also provide a thinner layer of TIM than even the most practised of us cannot match by hand. Check out more at Slashdot and try to avoid the rootkit jokes.
"Sony has demonstrated a thermal sheet that it claims matches thermal paste in terms of cooling ability while beating it on life span. The key to the sheet is a combination of silicon and carbon fibers, to produce a thermal conductive layer that's between 0.3 and 2mm thick. In the demonstration, the same CPU was cooled by thermal paste and the thermal sheet side-by-side, with the paste keeping the processor at a steady 53 degrees Celsius. The sheet achieved a slightly better 50 degrees Celsius. The actual CPU used in the demonstration wasn't identified. Sony wants to get the thermal sheet used in servers and for projection units, but I can definitely see this being an option for typical PC builds, too. It's certainly going to be less messy and probably a lot cheaper than buying a tube of thermal paste."
Here is some more Tech News from around the web:
- Make your own magnetic ink @ Hack a Day
- The Evolution Of NVIDIA's Kepler Driver Performance @ Phoronix
- Intel gobbles Lustre file system expert Whamcloud @ The Register
- Mozilla releases Firefox 14 and encrypts Google searches by default @ The Inquirer
- Symantec update killed biz PCs in three-way software prang @ The Register
- RaidSonic ICY BOX IB-PL550D 500Mbit/s Powerline Adapter Kit Review @ NikKTech