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X99 Mac Pro Concept

post #1 of 19
Thread Starter 




Been toying with this idea for the last year. Just wondering what people think. Basically, a pair of interlocking Noctua NH-D14's with X99 MITX mobo and GPU hanging of them with a pair of 200mm 147CFM Bitfenix Spectre Pro's in push/Pull mounted to and bottom of the enclosure. 14L and 14" tall and 9.5" in diametre.
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post #2 of 19
That's pretty sweet to be honest, I like the small size.
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post #3 of 19
Looking at your photos I have a fear that the air may struggle to go between the fins of NH-D14's and the majority of forced upward air may rather flow into the peripheral opening (e.g. between the base and the lowest fin or to the right and left of the fin stacks.)
I happen to have also contemplated on a cylindrical structure for some time after seeing Mac Pro but was thinking of either using two Zalman's Reserator 3 Max at the top and bottom making straight rising airflow (one for the CPU and the other for the GPU just like yours) or using two Scythe Katana3's, the latter idea being kinda similar to your two interlocking twin tower coolers but different in that the mobo and the GPU card aren't parallel but placed with an acute angle between them, together with stacked Katana3's forming a triangular shape utilizing the already angular nature of Katana3. With two Katana3's I was wishing to insert a 92mm fan between the two closely aligned fin stacks and another 92mm fan on the other side of the outer fin stacks. As a consequence the airflow will not be straight but intake from the side of the cylinder and pushed out from top and bottom. Anyway these were just ideas that I never pursued because I couldn't find a circularly bent metal of appropriate size.
post #4 of 19
147 CFM bitfenix fans? Typo? On their website it says 47 CFM
If they're actually 147 CFM, you'll definitely have enough airflow. In the more likely case that they don't, you should consider Silverstone AP181s instead. They push 130 CFM. I don't actually know of any 200mm fans that go at high RPMs and push as much as the 180mm Silverstones, but the Phanteks PH-F200SPs push 110 CFM.
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post #5 of 19
Wow, sweet idea. I had thought about something similar, but putting a system inside an empty G4 PowerMac Cube. I just wish you had went for a mid-high end Xeon instead biggrin.gif
post #6 of 19
Forgot to ask one thing, do you already have a concrete idea of how you shift the PCIe flex riser cable connecting the motherboard socket and the GPU card connector that certainly don't appear to be aligned? I'm assuming your flex cable will go behind the GPU card along the round side of the case but shifting the cable sideways will probably require bending it with a not so obvious radius that you might not have enough room for.

Also, related to my earlier post but what about two single tower coolers (not as deep as HR02/Macho or Mugen but slimmer ones) and a 120/140mm fan between them for better airflow through the fins? Interlocking twin towers look "cool" for sure, but not sure if it's worth the potential sacrifice of cooling.
post #7 of 19
Thread Starter 
Quote:
Originally Posted by Lefik View Post

147 CFM bitfenix fans? Typo? On their website it says 47 CFM
If they're actually 147 CFM, you'll definitely have enough airflow. In the more likely case that they don't, you should consider Silverstone AP181s instead. They push 130 CFM. I don't actually know of any 200mm fans that go at high RPMs and push as much as the 180mm Silverstones, but the Phanteks PH-F200SPs push 110 CFM.

Wrong fan.im talking about 200mm spectre pro.

http://www.bitfenix.com/global/en/products/accessories/spectre-pro#specs
Quote:
Originally Posted by veryrarium View Post

Forgot to ask one thing, do you already have a concrete idea of how you shift the PCIe flex riser cable connecting the motherboard socket and the GPU card connector that certainly don't appear to be aligned? I'm assuming your flex cable will go behind the GPU card along the round side of the case but shifting the cable sideways will probably require bending it with a not so obvious radius that you might not have enough room for.

Also, related to my earlier post but what about two single tower coolers (not as deep as HR02/Macho or Mugen but slimmer ones) and a 120/140mm fan between them for better airflow through the fins? Interlocking twin towers look "cool" for sure, but not sure if it's worth the potential sacrifice of cooling.

In another thread, Doyll pointed me towards a Silverstone dual tower heatsink that can interlock without modding and whose slightly different dimensions might allow me to revert to an older horizontal orientation I tried. Will model this other heatsink tonight and try out some configurations. While it might not be as efficient as a D14, if it allows a different config with directly mounted fans and ducting separate air flows to the two heatsink, it might still end up being more efficient in reality. New config might also allow some shrinkage.

Will report back.
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post #8 of 19
Neat! Not sure how practical it is though. The engineers who designed the Mac Pro should be commended for what they pulled off, but what the designers came up with (values form way too much over function) by restricting the cooling to the extent they did was idiotic. Two Tahiti GPUs and a 6-core Xeon spit out a little more heat than that case can handle.

Most Mac Pro releases have about two years between them. I'd expect to see an LGA-2011-3 version with Tonga FirePros and a Haswell-EP Xeon by the end of this year or the beginning of next year.

If you want to try this for the challenge though, go right ahead! I'm impressed so far. thumb.gif
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post #9 of 19
If you wanna get crazier you can look for a way to mill your own custom heatsink tongue.gif Or find some large aluminum heatsinks and trim them down to size. There is lots of space between the graphics card and motherboard for it.

Above all else, though, the components you pick is the biggest factor for heat output. Think of it as the "preventative" choice for keeping temperatures low. I am still on the side of swapping the 5820k for a Xeon. Especially if it's less than 100 watts. Go for something in the E5-26xx line, emphasizing power efficiency over max core clock speed. I might choose the E5-2640 v3 for this. You get two additional cores and turbo speed for two cores is a decent 3.4 Ghz.
post #10 of 19
Even a Xeon at the same speed as a 5820k. The 1600-series E5s are unlocked, since they use the same die as the i7 Extremes. They are, however, much less leaky and should use less power.
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