Helping a friend build a very tiny PC (mini-ITX), which he wants a 1070 in. Space is proving a real issue, and there is no way the GPU in his custom case isn't going to be blocking the CPU... i.e in a horizontal position above it (with a PCI-E riser cable). He's going with one of the mini 1070's. Therefore adequately cooling the CPU is going to be extremely tricky. Is there a CPU that's best suited to a situation like this, where minimal or restricted cooling will not be such an issue to its performance, or is this basically a fools errand? He was hoping to get a 7700 in there, but under the circumstances I can only see it getting roasted alive!
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Best CPU for easy cooling/low heat with a 1070
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Yeah an AIO won't fit, it's just too small a space. It's basically NES size... definitely a major challenge. I'm not sure it can practically be done without something at risk of melting lol!
There's currently less than 20mm gap between underside of GPU (backplate) and CPU cooler, although that could be less depending on the actual cooler chosen. There do seem to be some good options for low profile coolers, but I can't see any of them working very well in such a restricted space with very little airflow.
There's currently less than 20mm gap between underside of GPU (backplate) and CPU cooler, although that could be less depending on the actual cooler chosen. There do seem to be some good options for low profile coolers, but I can't see any of them working very well in such a restricted space with very little airflow.
Still very much a WIP, at the drawing board stage at present. He is hoping to put a Kaby system in there, so I was curious about the best CPU to opt for that will still be a good match for a 1070... is one better than any other in respect to heat/temps, or is it all much of a muchness? Delidding would help of course, although it's annoying you have to do this with the Kaby CPU's to get the best temps.
Yes, airflow is the focus... looking at trying to implement as much ventilation as possible, and it doesn't seem as though there will be space for much more than 40mm fans... but multiples of those. No idea how noisy that's going to be, or how effective they are lol! Definitely going to be a challenge, but interesting for sure. 
Interesting. Is it compatible with Skylake MITX boards though? Would it be sufficient for a 1070 gaming set-up? And it runs much cooler than the i5 would?
Yeah exactly, that's the challenge... if it was a basic low power on-board graphics system then no problem whatsoever, but with a 1070 it has to be able to perform and run games at a reasonably high level.
The Xeon route looks interesting, although I'm curious about two things...
1) All else being equal, what would the gaming performance difference be between a Xeon+1070 vs a delidded 7600k/7700k+1070?
2) Heat output vs a delidded 7600k/7700k and how much easier it would be to keep cool?
The plan was to flip the card, fan upwards, with venting in the top of the case.
Thanks, that sounds like a potential solution then... if power draw and heat output is that much less, it should definitely pose less issues given the limited space and air flow. So the 1260L would be the one to go for? I've not had much experience with Xeon's myself.
The problem is space... the GPU we were looking at is the Gigabyte Mini 1070... there is no FE card that size.
Thanks. No M.2 on that board I notice, which is a slight pain, but obviously the PPW seems excellent and ideal for confined space as you say. I can't see any board like this that does have M.2 actually.
Ah, yes, it's the E3C236D2I Server model that has x1 M.2, I was looking at a WSI Workstation model that doesn't.
It's a custom NES case.
So the E3C236D2I Server model won't work? Supports the same processor. What is it missing?
I'm just wondering, with the 1260L at 45W and the 7700(non K) at 65W, is there an argument that swings back in favour of the 7700 there? Does that extra 20W translate to that much higher temps?