This is amazing! @ceski, this is truly a mainline review-site comprehensive-style review, Thank you!I picked up an i7-8700K and a Strix Z370-I and ran some thermal tests in an S4 Mini. Here's what you can expect to see with two of the more popular coolers, a Noctua NH-L9i and a Thermolab LP53 (using the Noctua fan):
The CPU was stressed with Prime95 26.6 (no AVX) with 8K in-place FFTs. All testing was done in an S4 Mini. The following images show how the coolers were mounted:
The latest BIOS update is supposed to disable multicore enhancement by default but it still reverts to overclocking focused "Auto" settings once you enable XMP for your memory. As a result, the CPU will draw about 120W at 4.3GHz before power limiting and throttling to 95W at 3.9-4.0GHz. When properly tuned, the CPU power drops to 86-88W and maintains 4.3GHz under all-core load. The "Tuned" settings listed below simply force the processor back to stock behavior. The VCCIO/VCCSA voltages work fine for typical DDR4-3200 and can be adjusted for higher speed kits.
Removing one or more of the VRM heatsinks improves airflow and reduces CPU temperature at the expense of warmer MOSFETs. Since no one will be overclocking much, or at all, in the S4 Mini, the MOSFETs should stay reasonably cool. You can buy some small heatsinks if you want more peace of mind. Here are some thermal images of the bare VRM under Prime95 load:
Just like the 7700K, delidding is helpful and pretty easy to do. I used the Rockit 88 kit and liquid metal. There's no tiny resistors to worry about on this chip.
I used Noctua NT-H1 for every test except the last. Thermal Grizzly Kryonaut reduced core temperature by 2-3°C but there's nothing wrong with the stuff Noctua includes with their coolers and it's easier to apply.
Managing the 8700K in the S4 Mini is a lot like the 7700K and 6700K before it. Expect to spend some time getting temperatures under control by delidding, tuning, or modding. My guess is that the i7-8700 will also be difficult to cool, despite the claimed 65W TDP. Strongly consider the i5-8400 or Ryzen 5 1600 for an easier time. For cooling, like @Josh | NFC has mentioned before, Noctua is still the best overall when considering mounting, compatibility, and price.
hmm i don't think anyone has tested both those cards maybe josh has. Performance largely depends on heatsink and fan correlation. Small heatsink and large fan has terrible cooling as it has been proven with the MSI GTX 1080 ti Armor.I'm sure this has been asked, but what is the consensus on the Gigabyte 1070 Mini vs. MSI 1070 Aero ITX? The MSI has a larger fan and looks better... Does it also perform better?
Tidied the wiring on my build
And the Kryonaut Liquid Metal only dropped temps by another 2-3°C, Noctua truly are thermal dissipation gods!
Have you done much work on this with the Zotac 1080 Mini? I have a feeling the backplate doesn't do the card any good, and might just be blocking possible airflow from my scythe fan.I did many builds with the Gigabyte 1070 last year (this year its almost exclusively been the 1080 and 1080ti from Zotac) and having the Scythe push air over the back of the Gigabyte cards was a great boon.
Yeah, I am definitely going to do this then. My cooling will be maximum!The backplate on my 1080 Ti Mini literally does nothing and I'm guessing the 1080 Mini is the same way. There's no thermal pads to transfer heat and it is covered in a protective plastic film that actually insulates heat. I removed mine to fit a scythe fan behind it. This requires removing the heatsink first, so keep that in mind.
The backplate on my 1080 Ti Mini literally does nothing and I'm guessing the 1080 Mini is the same way. There's no thermal pads to transfer heat and it is covered in a protective plastic film that actually insulates heat. I removed mine to fit a scythe fan behind it. This requires removing the heatsink first, so keep that in mind.
Dude that build looks great! I wonder why it's sticking out, isnt that one of the new 3D bezels? Ah i see its the 2D vented bezel... is it an older 5mm one like mine? or a thicker 7mm one like the 3D bezels that can fit the entire 1080 /1080Ti mini?
What I would do if I were you is remove the fan shroud on the 1080 mini. It should all fit inside the S4 mini front bezel then, and then you can put your vent cover back on.
BUT if you want to keep the shroud, you could remove it and dremel off the tips that are hanging outside the front bezel, its what Josh did to my 1080 in his 1080 mini video here at 6:23. Hope that helps!