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Ultimate quiet performance in a Corsair 750d or 900d case

post #1 of 2
Thread Starter 
Hi all,

First post on these forums! smile.gif

I'm in the planning stage of upgrading my main overclocking and gaming rig and I'm trying to decide which one of the 750d and 900d would fit my needs best.

The main goal is to maximize cooling performance while at the same time keeping it as quiet as possible.

My current system is:
Intel DX79SI with i7-3970X at 4.4GHz cooled by an Antec Kuhler 920 with two fans in push-pull config.
Corsair Vengeance 1600C8 DDR3 4x4GB
ASUS GTX680 DirectCUII
2x Intel 730 SSD
1x Samsung 840 EVO SSD
Coolermaster ATSC 1000 Fulltower

It will in the near future be upgraded with the following:
Another ASUS GTX680 DirectCUII that I just got cheap 2nd hand but it doesn't fit in my current case.
ASUS Rampage V Extreme with an i7-5960X or 6950X
Corsair Vengeance 4x4GB DDR4
Custom watercooling system.

Initially I'm looking at cooling only the CPU with water.
The radiator I have in mind is the Alphacool NexXxos UT60 280 or 420(maybe overkill?) with Noctua NF-A14 PWM fans in push-pull and an EK Supremacy EVO waterblock.

I know the 900d can fit either of these two 60mm thick radiators with 25mm fans on each side of it in the top of the case.
But does the 750d have the same 110mm clearance between the motherboard and top of the fan mounts as the 900d so a UT60 280 could fit or would I have to use a thinner 45mm radiator with that case?

In the future I would like to have the option to watercool one or two new video cards as well as the mobo. Would the 240/280 space in the front and 140 in the back of the 750d be enough for rads to cool let's say two GTX980Ti and the RVE mobo?

Any other comments about watercooling an overclocked 8 or 10-core i7?

The EK Supremacy EVO is available in a lot of different materials. I'm thinking of the full copper one for best performance. Would this be a correct assumption?
What kind of pump and reservoir would be recommended?
I would also like to be able to measure the coolant temp and read it in an easy way in Windows. What kind of sensor would be recommended then?
Edited by HatTrickSWE - 1/27/16 at 8:56am
post #2 of 2
Let me see if I can answer the 750D related questions.
1. Top radiator size and clearance
750D can acommodate a max 420mm rad up top but that would make the top most drivr bay unuseable. Using stock mounts, there is a max clearance of 84mm(including fans) but is also dependent on how tall your mobo heatsinks are. If you choose to offset the rad nearer the window side, it could possibly acommodate a thicker rad.

2. Front and bottom rad thickness
You could do a thick front rad only or thin front and bottom config. But depending on when your case was made, you may need to request for 240mm mount offset brackets from corsair.

3. EK blocks
I personally would go full copper+acetal since it's less of a hassle for me. Cooling wise, it wouldnt make a difference whether you chose copper or nickel plated.

4. Pumps/res
Seems like a single D5 would suffice for your size loop. And that's all that the 750D can fit unless you decide to go with a bay res in which case you could have a dual pump setup. But I've heard that it is quite a hassle to bleed and quieten unless you decouple the whole res from the bay area. If you go with a tube res you's probably have to drill new mounting holes. That's what I'm going to do since the mounting holes are not perfectly aligned for my EK 140 X3 res.

Also, take a look at the 750D club therad. There are posts on how to modify your case to be able to fit a 360mm rad up front
Floored
(18 items)
 
  
CPUMotherboardGraphicsRAM
i7 4790K Gigabyte Z97X Gaming 7 MSI R9 290 Gaming 4G Kingston Low Voltage Value Ram 
Hard DriveHard DriveCoolingCooling
Crucial M500 480GB Western Digital Green 3TB Noctua NH-D15 Nidec Servo Gentle Typhoons 1850rpm x 8 
OSMonitorMonitorKeyboard
Windows 8.1 Pro 64-bit Philips 240B1CB 1920 x 1200 Samsung Syncmaster 2443BW 1920 x 1200 Filco Majestouch 2 Ninja TKL 
PowerCaseMouseMouse Pad
Seasonic X750 Corsair Obsidian 750D Zowie FK-1 Barracuda Juggernaut 
AudioOther
Corsair H2100 Wireless Headset NZXT Sentry 3  
  hide details  
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Floored
(18 items)
 
  
CPUMotherboardGraphicsRAM
i7 4790K Gigabyte Z97X Gaming 7 MSI R9 290 Gaming 4G Kingston Low Voltage Value Ram 
Hard DriveHard DriveCoolingCooling
Crucial M500 480GB Western Digital Green 3TB Noctua NH-D15 Nidec Servo Gentle Typhoons 1850rpm x 8 
OSMonitorMonitorKeyboard
Windows 8.1 Pro 64-bit Philips 240B1CB 1920 x 1200 Samsung Syncmaster 2443BW 1920 x 1200 Filco Majestouch 2 Ninja TKL 
PowerCaseMouseMouse Pad
Seasonic X750 Corsair Obsidian 750D Zowie FK-1 Barracuda Juggernaut 
AudioOther
Corsair H2100 Wireless Headset NZXT Sentry 3  
  hide details  
Reply
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