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Mantis Venus Fan recommendation
 

Mantis Venus Fan recommendation  

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jpme
 jpme
(@jpme)
Trusted Member
Joined: 3 years ago
 

Hi All, 

For the Mantis Venus user,

Have you any recommendation for a silent fan to replace the stock fan?

The stock is 8cm fan, I tried my old 9cm fan which works too, but my old fan is quite noisy itself. 

 

Any idea what's the rpm for the stock fan?

I'm not sure how can I check on that on my Mac.

2016 Mbp 15" dGPU 460
Mantiz Venus eGPU Nitro Sapphire RX580 LE
10.3(17A291m)


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ikir
 ikir
(@ikir)
Prominent Member
Joined: 3 years ago
 

I suggest you to use Noctua, soon I will install it on mine Venus and I will publish a video.


MacBook Pro 2018 Touch Bar i7 quad-core 2.7Ghz - 16GB RAM - 512GB PCIe SSD
my Mantiz Venus extreme mod with Sapphire Nitro+ RX Vega 64


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jpme
 jpme
(@jpme)
Trusted Member
Joined: 3 years ago
 

Hi,

Looking forward to your video and review.

2016 Mbp 15" dGPU 460
Mantiz Venus eGPU Nitro Sapphire RX580 LE
10.3(17A291m)


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BlackJack84
(@blackjack84)
Eminent Member
Joined: 2 years ago
 

I also went for an 80mm Noctua Redux PWM.
Note that the stock fan mounting screws are too short for that.
I had some rubber mounts lying around but found it impossible to pull them trough the small threaded holes on the black base plate (the rubber mounts are designed for larger through-holes), so I simply used longer M4 screws.
Since its airflow (CFM) is slightly lower than the stock fan, I left it plugged into the rightmost PWM connector (whose control is based on the power delivery IC - hottest component, hence asking for more rpm). The Noctua fan is extremely silent anyway.
It is a bit noisier than the power supply fan only while charging (when the PD IC is at its hottest), otherwise you can only hear the latter.

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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jpme
 jpme
(@jpme)
Trusted Member
Joined: 3 years ago
 

Thanks for the input Blackjack84,

I'm actually looking into the same Noctua 8cm model too. 

Judging from your review it seems total silent is hard to achieve unless going for a lower rpm with lower airflow.

 

During high load, my stock fan does push out a lot of hot air(fan connected to the 1st from left)

2016 Mbp 15" dGPU 460
Mantiz Venus eGPU Nitro Sapphire RX580 LE
10.3(17A291m)


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BlackJack84
(@blackjack84)
Eminent Member
Joined: 2 years ago
 

AFAIK most 80mm case ventilation fans are in the same CFM range as the Noctua (abt. 31 CFM), versus the 41 CFM of the stock fan (unless you go for something like a Vantec Tornado - hint: it bears the name for a reason =) ).
The Noctua doesn't look that much less effective to me: in any case it is temperature-controlled, the plain fact that it isn't spinning at full rpm tells me it is doing its job properly.
Bear in mind that the stock fan is noisy partly because of its thin form factor, rather than the higher airflow.
If you're in for some more serious modding, you could enlarge the bottom opening and fit a 90/120mm fan.
In my case, I found it pretty hassle-free to follow in Kotlos' footsteps and install some heatsinks.

 

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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kotlos
(@kotlos)
Trusted Member
Joined: 2 years ago
 

I agree with Blackjack84, be mindful of the CFM. 

Currently I am using the stock fan in reversed flow with a blow out GPU. It is plugged with a voltage reducer to the first fan pinout of the board. I also have the heatsinks attached on the two hottest chips. 

The temperatures do creep up to ~60C but the noise levels are quite low, enough that I am postponing the drilling of a 120mm hole indefinitely 🙂 .

But I still believe that the best solution that should work with all cards will be the two heatsinks + a 120mmx15mm fan. 

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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jpme
 jpme
(@jpme)
Trusted Member
Joined: 3 years ago
 

Noted, would a reversed flow increase dust build in internally?

2016 Mbp 15" dGPU 460
Mantiz Venus eGPU Nitro Sapphire RX580 LE
10.3(17A291m)


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BlackJack84
(@blackjack84)
Eminent Member
Joined: 2 years ago
 

From the dust buildup point of view, to the best of my knowledge extraction fans Vs. intake fans should be roughly equivalent if you don't use filters. I would say what goes out must come in anyway: even with an extraction fan, dusty air enters through the intake grilles.

If you use filters, then an intake fan is definitely better: you have a single ingress point to protect, and the case is overpressurized (as opposed to being depressurized with an extraction fan) wrt to the ambient, hence dust won't enter through the case gaps. However do note that filters reduce significantly the fan static pressure and therefore the airflow. I wouldn't bother with them, given how easily accessible are the Venus' internals for the occasional clean-up: that pop-out hatch is a real boon.

One thing I noticed is that by simply blowing my breath on the heatsink I put on IR8, I could immediately hear the relevant PWM fan decrease its rpm. I wonder how effective it would be to have a small 40mm fan blowing directly on the mainboard, making those heatsinks active.

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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(@reinhard1004)
Eminent Member
Joined: 2 years ago
 
Posted by: ikir

I suggest you to use Noctua, soon I will install it on mine Venus and I will publish a video.

Where is the video?

Was it worth swapping the fan?
I'm running an Asus Strix 1080ti in the Mantiz Venus with the Fan already on the left port and it's still quite noisy for always-on (having ethereum mining running nearly 24/7).

There are also sound-isolating boxes like this one http://www.acoustiproducts.com/en/orion_acoustic_mini.asp but not sure if that's worth it + if it has sufficient ventilation for 24/7 1080ti OC in a Mantiz Venus.

Late 2016 15" MBP w/ Radeon Pro 460, 2m CalDigit TB3 cable, Mantiz Venus eGPU case, NVidia GTX 1080ti.


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ikir
 ikir
(@ikir)
Prominent Member
Joined: 3 years ago
 

Sorry I didn’t make the video, busy months.

i’ve installed a Noctua Redux, it is working great, much more silent.

we offer it as an option on eGPU.it


MacBook Pro 2018 Touch Bar i7 quad-core 2.7Ghz - 16GB RAM - 512GB PCIe SSD
my Mantiz Venus extreme mod with Sapphire Nitro+ RX Vega 64


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ed_co
(@ed_co)
Reputable Member
Joined: 3 years ago
 

Hello ikir, how you put the new noctua fan? Several questions:

1) Have you bought new screws? Or use the silicone antivibration mounts?

2) Where did you connected the fan, connector left or right?

3) Have you used a low noise cable adapter? (Maybe it doesn't come with the redux version)

Cheers

mid-2017 Macbook Pro RP560 + MSI GTX 1080Ti Gaming [email protected] (Mantiz Venus) + macOS10.13 & Win10


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JLSMedia
(@jlsmedia)
Active Member
Joined: 2 years ago
 

Anyone have recommendations on what PSU to get to make that quieter as well? Or is it possible? I want a very quiet system and I heard the Sonnet is great for that but it doesn't have the USB or Ethernet ports so I'm looking at this one now, but definitely wanna replace both fans so it's as quiet as possible.

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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Rycco
(@rycco)
Reputable Member
Joined: 3 years ago
 

Guys, which screws should I get to install the Noctua 80mm?

mid-2017 15" Macbook Pro RP555 + [email protected] (Mantiz Venus) + macOS & Win10


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Zorn_
(@zorn_)
Eminent Member
Joined: 2 years ago
 
Posted by: Rycco

Guys, which screws should I get to install the Noctua 80mm?

I would also love to know what all is required to install a Noctua Redux 120mm fan. Does it need drilling holes in the case?

2017 MacBook Pro 15"
Mantiz Venus
Powercolor Vega 64


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Certamine
(@certamine)
New Member
Joined: 11 months ago
 

Man, replacing the chassis fan for the Venus (I believe I have rev.2 if that's even a thing, and it uses a 120mm x 15mm fan) was a pain in the butt. Four screws took me almost 2 hours and a complete dismantling of the enclosure. Wish they made the process easier, as the included fan is one of the cheapest and loudest I've seen. Other than the unnecessary work, replacing the fan is a must as it's SUPER quiet, even when under load! I love Noctua <3 It's a great set up, and maybe with a PSU replacement later on down the road this is shaping up to be the perfect set up.

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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Sunday Afternoon
(@sunday-afternoon)
Active Member
Joined: 8 months ago
 

I've just received my Venus, and like you say, the fan is the noisy component even though it is relatively large at 12cm. After your comment, I was already prepared to replace the fan and I will do so.

Do you have any pointers on how to take the enclosure apart to replace the fan? Is there an order of component removal that you recommend.

I was thinking along these lines:

  1. Card with the ports, including the USB cable to the front panel,
  2. PSU
  3. Other side panel
  4. Then the screws for the clamshell (top, front, bottom) and the innards slide out exposing the screw heads for the fan?

I agree with you about the Venus though - once the fan is fixed, this will be a perfect eGPU setup.

Many thanks!

My (almost silent) eGPU build: Modified Mantiz Venus & RX 580


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Sunday Afternoon
(@sunday-afternoon)
Active Member
Joined: 8 months ago
 

I realized that a right-angled screwdriver would greatly simplify the access to the fan mounting screws - Amazon link:  http://a.co/d/0ynlzns

I took the opportunity to replace the PSU with a Corsair SF600 to make this eGPU eerily quiet at low load - the only fan spinning at light load is the Noctua and you can't hear it!

Build guide to follow.

My (almost silent) eGPU build: Modified Mantiz Venus & RX 580


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(@mahmoud_benjawad)
New Member
Joined: 1 month ago
 
Posted by: @jpme

Hi All, 

For the Mantis Venus user,

Have you any recommendation for a silent fan to replace the stock fan?

The stock is 8cm fan, I tried my old 9cm fan whichTutuApp aadhar card https://onlinesbi.tips /" target="true">Onlinesbi works too, but my old fan is quite noisy itself. 

 

Any idea what's the rpm for the stock fan?

I'm not sure how can I check on that on my Mac.

The temperatures do creep up to ~60C but the noise levels are quite low, enough that I am postponing the drilling of a 120mm hole indefinitely 🙂 .

This post was modified 1 month ago

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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Eightarmedpet
(@eightarmedpet)
Noble Member
Joined: 3 years ago
 
Posted by: @sunday-afternoon

I realized that a right-angled screwdriver would greatly simplify the access to the fan mounting screws - Amazon link:  http://a.co/d/0ynlzns

I took the opportunity to replace the PSU with a Corsair SF600 to make this eGPU eerily quiet at low load - the only fan spinning at light load is the Noctua and you can't hear it!

Build guide to follow.

You wonderful person, I somehow didn't realise that a 90 degree screw driver would make my life so much easier, and the fact I actually have one....

My Vega 56 Ref card is louder than both the PSU and stock fan but might replace everything anyway just for fun and in the hopes my next macOS compatible AMD card will be more silent.

2017 13" MacBook Pro Touch Bar
GTX1060 + AKiTiO Thunder3 + Win10
GTX1070 + Sonnet Breakaway Box + Win10
GTX1070 + Razer Core V1 + Win10
Vega 56 + Razer Core V1 + macOS + Win10
Vega 56 + Mantiz Venus + macOS + W10

---

LG 5K Ultrafine flickering issue fix


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