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MacPro 3.1 2019 Killer

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I just saw this youtube link on the Noctua NH-U12A, and from what I saw, it's the best that fits my project, smaller than the D15, it should fit on my cover with no problem.
This would keep the focus on Noctua's 120mm fans to cool Case MacPro completely.
 

pastrychef

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I see the measures as've seen here in the forum, people with the same configuration as mine and had to sand the D15 to be able to fit inside the case of the MacPro, but also worry too much about the noise.
So I'm in search of an air cooler of great quality, with great cooling and low noise.
You are not going to find anything better than the NF-A12x25 PWM.
 
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I have a doubt, I need to fit the PSU Corsair RM850x in the place where was the original MAC PSU, so it was tight.
I would like to keep the external originality of the Mac by putting the original PSU connector on the Mac, and making an internal wiring to be able to plug into the Corsair PSU.
WhatsApp Image 2019-07-04 at 14.49.02.jpeg

WhatsApp Image 2019-07-04 at 14.49.59.jpeg

WhatsApp Image 2019-07-04 at 14.54.18.jpeg

As photo, I will see that it has been tight, I have 2 options:
- Pass the PSU cable through the hole and make it visible.
WhatsApp Image 2019-07-04 at 16.44.58.jpeg

WhatsApp Image 2019-07-04 at 16.31.18.jpeg

- Cut the aluminum plate, and pass a part of the Corsair PSU to the other side and with that I keep the originality of the MacPro case a little.
WhatsApp Image 2019-07-04 at 17.51.06.jpeg

WhatsApp Image 2019-07-04 at 17.48.43.jpeg
 

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Joined
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Keeping you up to date.
In the last post I informed you what I would do, that would be to reuse the original MacPro source connector and use it to place Corsair, besides cutting the plate between the PSU and the drive cover.
Follow the photos:
2019-07-16 (1).jpg

2019-07-16 (7).jpg

2019-07-16 (6).jpg

2019-07-16 (4).jpg

2019-07-16 (3).jpg

2019-07-16.jpg

2019-07-16 (2).jpg

2019-07-16 (5).jpg
 

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The NH-U12A is supposed to perform just a tiny, tiny bit below an NH-D15S and based on everything I've see/read, I have no reason to doubt that. As I've said, the NH-D15S has no problems keeping my i9-9900K cool.

The NH-U12A uses an NF-A12-x25 PWM fan that's extraordinarily quiet.

I'm not sure how it will perform in the old Mac Pro case. The old Mac Pro case may constrain the amount of air your CPU cooler gets. Forcing lots of air through those tiny little holes can also create noise.

Here's a video about a case that has similar type of perforated front as the old Mac Pros. It should be informative for you.

The trick to these cases (I now own a Q500L) is to get the fans away from the holes and use low RPM fans. In my case, for now, I am using 120mm fans on 140mm to 120mm adapters. Using the PWM Noctua fans and controls in the BIOS to tune them to be silent at idle and ramp them up as needed. Eventually, I will print or machine shrouds for the front and bottom that will utilize almost all of the holes for a pair of 120mm or 140mm fans.

In the old Apple case, I would use the biggest fans that will fit in the same locations as the stock fans. Apple has already figured out how far away from the holes you need to be to avoid noise. Make sure the fans are shrouded/sealed so no air recirculates. Also be sure to buy high pressure fans just like Apple did. Most high pressure fans are 38mm thick instead of 25mm. Also, since the bottom is likely exposed internally, I'd drill holes for a couple of 140mm Noctua fans blowing upward from the bottom.

Lastly, LiveSorcerer needs to remember. These cases were designed to efficiently cool dual 6-core 140 watt XEON CPUs with only 2 high pressure case fans in the motherboard chamber. Cooling his little i9-9900k should literally be a breeze. If he can figure out how to rewire the original Apple fans, they might be the best choice.
 
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You are likely to have heat issues with so little space between the intake of the PSU and the top of the case. Further, you just cut the spot for the fan mount in that chamber. I would have used a Corsair SF600 or sf750 PSU that would have fit with more air intake room and would not have required cutting that important fan mount. You are going to need fans somewhere that will blow or pull cool air across your drives if you don't want to cook them.

With a coupe of icy dock racks, you can fit 8 2.5 drives in the dual dvd drive cage (more if you are OK with shorter drives). Those cages will also have fans on the back. Replace them with higher quality Noctua 40mm fans to move more air and keep them quiet. I don't think they will blow enough for your power supply but they might help.
 
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From what I've seen, it's coming out more expensive than the D15, and it's almost impossible to buy.
Must come very expensive here for Brazil.
You can also buy the NH-U12S and another Noctua NF-A12x25 PWM fan. You can even buy 2 Chromax version fans if you prefer black.

The NH-C14S will work very well too. It will also cool your VRMs a little.

For perspective, I am cooling a i7-8700k (95w) with a Noctua NH-L9x65. I only replaced the 15mm fan with a 25mm fan for better air flow. Your i9-9900k is also a 95w CPU. I would still recommend something better than the NH-L9x65 but it does not need to be extreme. Get the biggest Noctua heatsink that you can afford that will fit. It will be great. If it comes with thin 15mm thick fans, you can always use 25mm fans to improve cooling.
 
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My focus is the silence and performance, I'm using this PSU , precisely to supply everything and majs a little. Interesting idea of the 40mm fan.
I will use 3 Noctua NF-S12A at the original fan site. I want to know how I'm going to arrest this 40mm fan you commented on.
 
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My focus is the silence and performance, I'm using this PSU , precisely to supply everything and majs a little. Interesting idea of the 40mm fan.
I will use 3 Noctua NF-S12A at the original fan site. I want to know how I'm going to arrest this 40mm fan you commented on.
The 40mm fans go on the back of the icydock drive cages. They have a new drive cage that would be better. It has all 8 drives in a single cage with an 80mm fan on the back. I wouldn't fill all 8 drives. Put maybe 4 drives in and let the air flow through the empty bays to help cool the PSU.

Your PSU is likely overkill. If it gets hot, you'll have a lot of fan noise until it dies. I'm using a SF600 on an ATX motherboard with i7-8700k, 5 case fans The Noctua 92mm heatsink, a 1tb 960Pro SSD, and a Vega 64 GPU with power to spare. Have you actually calculated how much power you will be using? The SF750 is only 50 watts less and will breathe properly in that space. If you MUST have 800w, Silverstone makes an 800w SFX-L PSU that would still be short enough to let the intake fan breathe.

If you want to stay with what you have you need to take it out of the case and rig up horizontal airflow from the front to the back. Just don't shock yourself if you do. Just my humble opinion.
 

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