Best fan placement for Lian Li O11 Dynamic

[Zalosath]

Hi there,

I currently have a NXZT H510 case, it's thermals are terrible and it wont run lower than 80 degrees (even idle) with the side panel on. So currently, the side panel is off.

 

I am sick of this and decided to upgrade to a Lian Li O11 Dynamic. The case has lots of locations for fans and radiators, so my question is, what's the best placement for these?

 

I have a 360mm radiator for the CPU and 3 120mm fans to work with. 

 

This is my current idea:

 

Would this be good or is there a better configuration? 

 

Thanks.

 

 

[Stahlmann]

Your setup is pretty much the best for the number of fans you have. I'd probably get another 3 fans and place them as intake on the bottom aswell.

[Zalosath]

Just now, Stahlmann said:

Your setup is pretty much the best for the number of fans you have. I'd probably get another 3 fans and place them as intake on the bottom aswell.

Okay great. If I run into any thermal issues I'll be sure to pick up another 3. Thank you

[Noah0302]

I would maybe set the radiator to the side, so it does not such in the hot air from the GPU, but leave the top es exhaust. Let the exhaust run a bit faster than the Intake ones, so the GPU can suck in air from the bottom and not the warm air from the CPU.

I tested it and saw up to a 10C CPU diff, depending on the GPU load.

 

I went totally overkill with my fans in the O11D
 

Bottom: 3 intake (For GPU)

Side: 6 intake (Push Pull with 360 rad for CPU)

Top: 3 exhaust (Running faster than the intake ones, so to not get a huge pressure difference)

 

 

Whats nice about that, is that no matter what my fans dont ramp up over 800rmp with the curves I set up, no matter what I do.

 

Spoiler

 

[Zalosath]

On 10/19/2020 at 2:04 PM, Noah0302 said:

I would maybe set the radiator to the side, so it does not such in the hot air from the GPU, but leave the top es exhaust. Let the exhaust run a bit faster than the Intake ones, so the GPU can suck in air from the bottom and not the warm air from the CPU.

I tested it and saw up to a 10C CPU diff, depending on the GPU load.

 

I went totally overkill with my fans in the O11D
 

Bottom: 3 intake (For GPU)

Side: 6 intake (Push Pull with 360 rad for CPU)

Top: 3 exhaust (Running faster than the intake ones, so to not get a huge pressure difference)

 

 

Whats nice about that, is that no matter what my fans dont ramp up over 800rmp with the curves I set up, no matter what I do.

 

  Reveal hidden contents

 

Thanks for your help. I managed to find an additional 5 fans but unfortunately, a potential oversight in the case is that the SSDs HAVE to go in the front, unless I just wasn't able to find one on the back? So I was limited to only having 2 fans along the bottom instead of 3. 

 

I'm seeing temps of about 50 degrees C which is a massive improvement over what I had previously. 

 

Here's a picture, should you be curious to see. (I love white! but RGB fans are expensive!)

Spoiler

 

[smatts]

you can always just velcro, double sided tape , something else your ssd at the back of the case

 

oddly enough im also going from a 510 to an o11 as i track down parts this month

 

 

if you do the 3 at the bottom be sure to check clearance on your usb 3.0 header if at the bottom of your motherboard.   ive had to order an extender

[Zalosath]

3 hours ago, smatts said:

you can always just velcro, double sided tape , something else your ssd at the back of the case

 

oddly enough im also going from a 510 to an o11 as i track down parts this month

 

 

if you do the 3 at the bottom be sure to check clearance on your usb 3.0 header if at the bottom of your motherboard.   ive had to order an extender

Yeah the USB 3.0 would definitely not fit without an extender, which one have you ordered? So I can order one that will fit.

[smatts]

21 hours ago, Zalosath said:

Yeah the USB 3.0 would definitely not fit without an extender, which one have you ordered? So I can order one that will fit.

https://www.amazon.ca/gp/aw/d/B083XDQSWT?ref=ppx_pt2_mob_b_prod_image

 

no idea if it's good quality or not but it has thw flex to make the bend and for $25 i figured I'd try.   anything else i saw was expensive shipping

[smatts]

On 10/23/2020 at 12:47 PM, Zalosath said:

Thanks for your help. I managed to find an additional 5 fans but unfortunately, a potential oversight in the case is that the SSDs HAVE to go in the front, unless I just wasn't able to find one on the back?

  Reveal hidden contents

 

so ignore my comment about velco for ssds in this case.   Now that im finally getting parts in ive learned the back plate is where you mount them.   that center bar with the rubber pads.  a little mad at myself for not noticing 

 

 

[PasitimusD]

I have the same dilema as well at first.What I did was:

6 fans up top set to intake (Push-Pull 360 Rad) at 600-900 RPM
3 fans side set to exhaust at 800 to 1400 RPM
3 fans bottom set to intake 400rpm to 600 RPM

Idle temps:                              CPU: 39-41 C     GPU: 37-40 C

Load Temps Stress Test:        CPU: 65-71 C     GPU: 68-73 C

Gaming Temps:                      CPU: 44-56 C     GPU: 45-68 C (Game dependent)

 

All are average temps at 28-30 C ambient.

I've set the Exhaust fans at a higher RPMs to exhaust more hot air efficiently. I've manage to use an average of the CPU and GPU temps to control the speed of the side fans. For the CPU, since it is in push pull, I can safely reduce the RPMs and barely notice any difference. As for the bottom, I've used the same app so that my GPU temp controls the fan speed and 600 RPM is quiet sufficient to cool the GPU even under load and noticed little improvement going higher. This for me is the perfect balance of looks and performance. You can sacrifice a bit of CPU temp to cool the GPU better by using top rad as exhaust while using bottom and side as intake, or using side rad and bottom as intake and top as exhaust, but I'm not quite pleased with how it looks. I want the top part covered as much as it would give me a cleaner look by hiding the empty space and cables hence the push/pull Rad config at the top and I want my side fans facing forward hence they are set to exhaust 

Software I used is Argus Monitor.

 

[Glitched9]

I had the same delemma. I actually ended up returning my cheap case quality fans and I bought 2 sets of Corsair LL120s fans that can produce 65 CFM of wind. I have 3 on the side and 3 on the bottom set to intake, and then I have a NZXT Kraken X73 AIO at the top, set to Exhaust and I have almost identical temperatures as someone commented with their push-pull 6 fan setup plus the additional 3 fans at top and 3 fans at the bottom. 

 

Idle temps - CPU(35°-39°), GPU(31-37°)

 

Cpu load stress test - CPU(60-72°), GPU(55,65°) gpu did very well.

 

Game temps - this fluctuates per game but CPU does 50-70° and GPU does a very consistent 60-65°

 

I'm running a 5900x and those tend to run hotter then normal too.

[Apu Newbie]

On 10/19/2020 at 6:34 PM, Noah0302 said:

I would maybe set the radiator to the side, so it does not such in the hot air from the GPU, but leave the top es exhaust. Let the exhaust run a bit faster than the Intake ones, so the GPU can suck in air from the bottom and not the warm air from the CPU.

I tested it and saw up to a 10C CPU diff, depending on the GPU load.

 

I went totally overkill with my fans in the O11D
 

Bottom: 3 intake (For GPU)

Side: 6 intake (Push Pull with 360 rad for CPU)

Top: 3 exhaust (Running faster than the intake ones, so to not get a huge pressure difference)

 

 

Whats nice about that, is that no matter what my fans dont ramp up over 800rmp with the curves I set up, no matter what I do.

 

  Hide contents

 

Hi, just wanted to bounce an idea off you. What you've done sounds pretty perfect and I'll probably do just that but how does this sound?

Bottom - 3 fans intake

Side - 3 fans intake

Top - 120 Radiator (Z53) + 2 exhaust fans

Rear - 2 x 80mm exhaust

OR

Top - 3 exhaust fans

and Noctua D15

Thanks for a reply from you or anyone

[CptRorShak]

On 10/19/2020 at 9:04 AM, Noah0302 said:

I would maybe set the radiator to the side, so it does not such in the hot air from the GPU, but leave the top es exhaust. Let the exhaust run a bit faster than the Intake ones, so the GPU can suck in air from the bottom and not the warm air from the CPU.

I tested it and saw up to a 10C CPU diff, depending on the GPU load.

 

I went totally overkill with my fans in the O11D
 

Bottom: 3 intake (For GPU)

Side: 6 intake (Push Pull with 360 rad for CPU)

Top: 3 exhaust (Running faster than the intake ones, so to not get a huge pressure difference)

 

 

Whats nice about that, is that no matter what my fans dont ramp up over 800rmp with the curves I set up, no matter what I do.

 

  Reveal hidden contents

 

Can you tell me more about the fan curve set up? 

 

I'm having overheating issues. While playing GTAV 5-10 mid later my PC just shutsdown unexpectedly

On 10/19/2020 at 9:04 AM, Noah0302 said:

I would maybe set the radiator to the side, so it does not such in the hot air from the GPU, but leave the top es exhaust. Let the exhaust run a bit faster than the Intake ones, so the GPU can suck in air from the bottom and not the warm air from the CPU.

I tested it and saw up to a 10C CPU diff, depending on the GPU load.

 

I went totally overkill with my fans in the O11D
 

Bottom: 3 intake (For GPU)

Side: 6 intake (Push Pull with 360 rad for CPU)

Top: 3 exhaust (Running faster than the intake ones, so to not get a huge pressure difference)

 

 

Whats nice about that, is that no matter what my fans dont ramp up over 800rmp with the curves I set up, no matter what I do.

 

  Reveal hidden contents

 

Can you explain the Fan curve for me? I have a similar set up as you. (just need to reconfigure the 6 fans on the radiator as intakes) but I also wanna lower the rpm and get the maximum air flow to keep the Temperature low. 

 

I noticed that my PC shutsdown unexpectedly after aying GTAV for more than 5-10 mins. And I'm pretty sure it's the GPU over heating.