Hi, i'm looking for a case for this motherboard.
My plan is to use PicoPSU for powering.
Dimensions are not an issue for me (even full ATX is ok). The most critical aspect for me is having good passive cooling without fans.

The candidates i've found are:
- NZXT Vulcan;
- SilverStone ML03B;
- Itek Voolcan.
The Vulcan seems the best choice to me as it has a lot of ventilation outlets and comes with 2 case fans that can be easily turned off.
The other cases i've seen are more pricey or don't have enough ventilation outlets.

Can you suggest me other cases on the same price tag?

What are the other components? It might be worth while to get a case that can hold say a single 120mm which you can have blow over all components and create positive case pressure.

I agree with Lsv, would be useful what you intend to do with it and full list of other components you plan on adding. I personally dont think fully fanless is good idea, a single 120mm fan can make a big difference even at very low rpms where it would be indaudible. But if you want to risk it, i would try pick a case that is very open, for the heat to get out and not create an oven inside, maybe something like Morex Black T-3500 60W Mini-ITX Case and downgrade to mini ITX with the same mobo, Asus E35M1-I.



If you want a trully fanless setup, maybe something like HDPLEX E3, SPCR Review HDPLEX H3.SODD Fanless Mini-ITX HTPC Case, pair it with Intel H61 mobo + Celeron G530 you will end up with much more capable cpu and a iGPU that its capable of doing HD videos.

If it's big enough, the case doesn't need to be very open. But that board is a bad fanless board.

Please read the review you linked carefully.
From page seven:"Manually set to 1000 RPM (45% in the BIOS or SpeedFan), [the fan] was practically inaudible at one meter's distance. [...] [T]he GPU temperature stabilized at 68°C.".
With a fan the temperature was acceptable on an open testbench.
Not sure it it's a good idea to run it fanless inside a case.
Why don't you take a look at Abula's build here.

Sorry for the late reply, now i'm looking towards the new Intel DN2800MT which looks a better board for my purposes.

Anyway, i still have one question left about this Asus mobo:
why the GPU temperature is so different from the CPU?
Since they are both built on the same chip, their temps should be quite close, don't they?

Agreed