Arctic's MX-4 thermal compound has proven itself well in the DIY space, but it's been around for quite some time and seemingly, like everything in tech, in need of an update. So in comes, low-and-behold, the MX-5. The MX-5 thermal paste hasn't been officially announced yet nor is it listed on Arctic's website, but hardware detective @momomo_us found the compound listed on Amazon UK (opens in new tab) paired with an informative description.
Although full specifications aren't available at this time, what stands out most about the description is the paste's durability: it's alleged to last for up to eight years once applied.
Of course, enthusiasts generally change CPU multiple times in eight years, but MX-5's alleged durability can be extremely helpful for use in laptops, GPUs, or that PC you're building for a relative. Its not clear what the MX-5's thermal conductivity is, but if Arctic's historic products are anything to go by, it should be pretty good.
MX-5 is metal-free and non-conductive, so it's also safe for use on GPUs without needing to worry about over-spilling on the area around the GPU.
A single 4g tube of paste (enough for well over a dozen builds) is listed on Amazon UK's site for £13.59 (opens in new tab), which translates to about $18.50. That's probably pre-order pricing though, and it will likely drop in due time. According to Amazon the MX-5 thermal grease will be released on March 15 2021.
PS : too much paste IS an issue. because it's a mess and it get on the pins and holes of the socket and CPU, preventing them from conducting electricity/data.
is that he white stuff that comes with noname china heatsinks ?
I'd also like to push the paste out manually, and not have some automatic device doing it for me.
An 8 year lifespan feels a bit shorter than I am used to.
Aluminum and Zinc oxide pastes ("white goo") may be cheap but the best ones among those perform within 3-4C of the best pastes out there short of going liquid metal. Decent white goo is the way to go if you want something that is effectively maintenance-free.
The relatively long durability rating is still a good selling point though. Some of the other high-performance thermal compounds provide good thermal performance initially, but tend to break down relatively quickly, and unless one is going out their way to remount their CPU cooler every year or so, using a paste like these that shouldn't degrade significantly is probably a better option.
The white, stock paste you guys mention leads to some 3˚C higher temperatures of the CooliPi+RPI than MX-2. MX-4 is about half a degree better than MX-2
Longevity of thermal paste was a key issue in choosing a recommended paste for out heatsinks. It's a difference if you run your server for 8 years or 20 years without servicing. Less downtime, you know... ;)