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[Build Log] The Executive - Custom Desk Case Mode built from the ground up - first custom case build

post #1 of 12
Thread Starter 
So I'm starting a new project this week, and I thought I should finally stop being such a stalker on the Overclock.net forums, and actually join the community! I'd also love input from fellow PC enthusiasts!

I've started building a new computer desk, which will have the computer built directly into said desk! I'm new to construction work, and looking for input on airflow, as for now I will be using air to cool this build, minus the CPU, which is using a Corsair H100i water cooler all-in-one.

Here's the sketch:
*
Note that the desk TOP piece itself (which is one large acrylic sheet) is not pictured here.

And here's the desk so far:
*
*

Of course there is no sanding/painting/etc. just yet, and I still haven't made any cuts for peripherals/dvd drive/etc. So far so good. The interior of the desk is 10 inches deep - a bit much, and if I could go back in time and do 8" instead I just might, but I wanted to be sure I had enough space for the components once they're mounted to Motherboard trays, drive bays, etc.

So my question is: Airflow. What you're looking at here is basically a 5'x2'x10" compartment - so there's plenty of room, but how should I section everything off? Here's what I'm thinking:


But I have a few questions:

1. Does the PSU section even need airflow if it's exhausting down/outwards?

2. This is a large area (5 ft by 2 ft) - is one inward and one outward fan enough for the motherboard section? Should I have two in/two out? Should I consider adding an "in" fan on the bottom of this section?

3. Considering the size of the compartment, what size fans should I be looking for? I was thinking at the very least 140mm, but maybe I should use 200mm instead. Not sure.

Again I appreciate the feedback. Looking forward to embarking on this epic journey with everyone! smile.gif
post #2 of 12
Sounds like it'll be a neat build. I recommend you getting ahold of S7design on here as he finished a custom built desk that is similar in design. He is great at giving advice and tips about the journey involved in desk/PC building. As far as fans go I would recommend 2-3 in and 2-3 out around 140mm should be fine. One thing you will have to take into consideration is the added heat from your GPU as most desk builds are fully water cooled. I think air cooled builds rock so it will be sweet to see what you come up with.
IKONiK
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IKONiK
(9 items)
 
APEX CES Build
(22 items)
 
 
CPUMotherboardGraphicsRAM
I7 6700k 1151 EVGA Z170 Classified K 1151 EVGA GTX 980TI Classified  EVGA Superclocked DDR4 
Hard DriveHard DriveCoolingOS
OCZ Vector 180 OCZ RD400 NVM PCIE SSD  Alphacool custom loop with limited edition whit... Windows 10 
Power
Be Quiet Dark Power Pro 11 1,000 watt 
CPUCPUMotherboardMotherboard
i7 7700k 1151 Kaby Lake  i7 7700k 1151 Kaby Lake  Aorus Z270X-Gaming 5 Aorus Z270X-Gaming 5 
GraphicsGraphicsGraphicsGraphics
Gigabyte GTX1070 G1 Gigabyte GTX1070 G1 Gigabyte GTX1070 G1 Gigabyte GTX1070 G1 
RAMRAMHard DriveHard Drive
Hyperx 16gb RGB Predator Prototype  Hyperx 16gb RGB Predator Prototype  Hyperx Fury SSD Hyperx Fury SSD 
CoolingCoolingOSOS
Alphacool custom loop with 420mm and 360mm radi... Alphacool custom loop with 420mm and 360mm radi... Windows 10 Windows 10 
PowerPowerCaseCase
Be Quiet Dark Power Pro 11 1,000 watt  Be Quiet Dark Power Pro 11 1,000 watt  Be Quiet Dark BASE Pro orange edition  Be Quiet Dark BASE Pro orange edition  
MouseMouse
Steelseries RIVAL500 Steelseries RIVAL500 
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post #3 of 12
Thread Starter 
Thanks for the advice. I ran the design by a friend who's worked in the computer parts industry for some time, he suggested maybe running the AIO cpu cooler out the back instead of exhausting into the adjacent section. He also thought the PSU didn't need an exhaust fan if I already have the PSU exhaust blowing down/out of the bottom of the desk, and not having an additional exhaust would help with positive pressure. I'll reach out to S7design, as well.

The updated / suggested airflow would look like this:



I would like to use 200mm fans since the desk compartment is so large. I'm not convinced the motherboard section even needs that left exhaust fan, for two reasons:

1. I feel like it's in the way of GPU out and won't really work there.
2. I think two intake fans and only the one AIO cpu cooler exhaust fan would help positive pressure.

Let me know what you think. Onto purchasing fans! Looking for some UV green ones that won't sounds like jet engines at 200mm...
post #4 of 12
Looks like a very interesting project, all desk builds are biggrin.gif

The second picture looks to have better air flow, just wondering about the position of the H100i cooler and if it will allow space for the mobo and the I/O bracket.

You should take some time and do a scale 3D model of the interior in sketchup to see how to fit all the part together
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The S7 Desk
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My main rig
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SSD CORSAIR FORCE 60GB Sata 3 SEAGATE 200GB sata DVD Drive Water cooled with EK parts 
CPUMotherboardGraphicsGraphics
Intel i7 3770K GIGABYTE GA-Z77X-UP4 TH R9 290X R9 290 
RAMHard DriveOptical DriveCooling
DDR3 8GB PC1600 Corsair Dominator 2x SSD Intel 330 in RAID 0 DVD drive THERMALRIGHT True Spirit 140 
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post #5 of 12
Thread Starter 
I was finally able to make some progress cutting holes for the fans/dvd drive. At this point all I have left to cut are the holes in the back, which are taking a little longer to complete.

post #6 of 12
sweet concept, ill follow along

subbed
post #7 of 12
looks like a nice build!

also, aren't most PSU fans intake fans? and they exhaust out the back? just thought it was worth mentioning but i don't see why you wouldn't be able to flip it around.
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post #8 of 12
Getting there. Something to consider is that I saw you say the entire top section would be one large acrylic sheet. Well I would perhaps think about only showing the motherboard compartment as the other ones will perhaps be messy and and have a lot of cables and not much bling to see. Also perhaps splitting the top section would allow you to open and get access to one part or the other without completely removing the top and taking everything off of the desk.

Final thought - Acrylic scratches easy, I have already managed to scratch my desk pc window. So if you had one large sheet you scratched it would be expensive. Maybe you could go for glass if you want it for the whole top
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post #9 of 12
also if it is going to be one large sheet, make sure it is supported properly so it doesn't sag and sits flat/flush
post #10 of 12
Thread Starter 
Thanks for all the great feedback. Exiz - I'll start looking into glass options. I'd like the entire top to be either glass or acrylic, though I'm not opposed to using multiple pieces for the sake of ease of access to the components. I would eventually like to turn this into a custom water-cooled build, but for now I'll be using my existing parts. I do have a question for you regarding your recent desk build. How did you combat the resonance from the wood? Your fans are mounted similarly to how mine will be setup, and I notice you'd added a layer of some sort of material in-between the wood and the fans. I'm curious to know what you used, as I'm leery about attaching fans directly to wood. I thought about lining the interior with either foam or rubber, but I'd love your input.
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