Optimum Tech The ITX Air-Cooling Dream? Jonsplus i100 Pro Review

Revenant

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I like the design save for one thing: Its power supply dumps into the case....I think.
 
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tinyitx

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Jan 25, 2018
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I like the design save for one thing: Its power supply dumps into the case....I think.
A small yes and a big no, I suppose.

Exhaust side of the PSU points up.

For SFX PSU, the support bracket is moved to the top position, much closer to the top vented panel.

And top panel supports 3x120mm fans. One of which could extract hot exhaust easily.

Edit:- Come to think of it, SF750 Platinum at 100% loading has 89% efficiency.
So, a back-of-the-envelope calculation says the heat exhaust is about 750W x 11% = 83W, which is not really really a big amount of heat. Of course, this is still not desirable, if it gets sucked up by another component. But it should be exhausted out of the case via a top fan.
 
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Revenant

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Apr 21, 2017
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A small yes and a big no, I suppose.

Exhaust side of the PSU points up.

For SFX PSU, the support bracket is moved to the top position, much closer to the top vented panel.

And top panel supports 3x120mm fans. One of which could extract hot exhaust easily.

Edit:- Come to think of it, SF750 Platinum at 100% loading has 89% efficiency.
So, a back-of-the-envelope calculation says the heat exhaust is about 750W x 11% = 83W, which is not really really a big amount of heat. Of course, this is still not desirable, if it gets sucked up by another component. But it should be exhausted out of the case via a top fan.

Thats a lot of heat dumping onto your radiator. Why else get this if you don’t use the 360mm rad? From a SFF point of view I mean...

Then again, the Ghost S1 showed very little real world loss of performance from doing the same thing.
 

Thehack

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An RTX 3090 is 350W, and unless you're OCing, most CPU are around 100W during realistic use. so, around 500W for some top of the line build. 91% efficiency means you get 45W of waste heat. On a 360, it won't really affect it much. That is maybe a difference of 3-5C at most?

A 200W 5950X sits at 51-56C, pretty much worst case scenario top of the line build. So if you had a 150W CPU, 350W GPU, and whatever remaining, it probably won't even break 60C. CPUs don't really care about the actual temp, as long as it has enough thermal headroom.

Is it optimal? No, but if you're fitting a 360 you'll be fine.
 

Revenant

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Apr 21, 2017
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An RTX 3090 is 350W, and unless you're OCing, most CPU are around 100W during realistic use. so, around 500W for some top of the line build. 91% efficiency means you get 45W of waste heat. On a 360, it won't really affect it much. That is maybe a difference of 3-5C at most?

A 200W 5950X sits at 51-56C, pretty much worst case scenario top of the line build. So if you had a 150W CPU, 350W GPU, and whatever remaining, it probably won't even break 60C. CPUs don't really care about the actual temp, as long as it has enough thermal headroom.

Is it optimal? No, but if you're fitting a 360 you'll be fine.

The GPU has to radiate the heat into the air, which then mixes with ambient intake. It's substantially cooled by the time it reaches the radiator if there are intake fans. However, the PSU is directly under the radiator. There is far less time and distance to introduce ambient air into the flow. This can create a literal hot spot directly in the radiator that can cause more heat buildup then the 45 watt would imply.

As you stated, it's not that big a deal with a 360mm rad and they probably will be fine. Run a 5950X, and a RTX 3080/3090 though while doing a heavy workload that hits the CPU/GPU at the same time, and their could be an issue. I'm not a big fan of the direct dumping of waste heat so close to the radiator itself.