Wow that first pic would have never convinced me that the fan was ~60% unblocked
Perspective !
Wow that first pic would have never convinced me that the fan was ~60% unblocked
From my own experience (i3 2100 + gt730) i suggest getting some ventilation at the top if you can. The intake on these C2 does get air moving but it has a sort of dead spot at the top of the case and it can get very hot to the touch.
I'm planning on doing a build with the C2. Does it really get so hot that you need to make modifications like these? Or is it just because you want to have the CPU passively cooled?
It does get hot. The only standard intake is the 120/140mm fan mount in the base, and the only standard exhaust is the PSU and a small amount of venting at the rear of the case. In stock config I'd recommend a max of a 65w cpu and 75w GPU (unless blower GPU)
I put an E3 xeon + R9 370 in mine to try it out, and it would get very warm but not to the point of throttling. My bigger concern was heat would get caught in the front and top so the SSD and HDD would get up around 47-50C even when the computer was idling. The top panel would get very warm to touch. I think Confusis' simple mod to have a gap in the top panel will solve most of this problem. You can also use an SFX power supply with Silverstone PP08 adapter to get about another 20mm of CPU clearance.