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AMD Vega FE + Mantiz Venus + which PSU?
 

AMD Vega FE + Mantiz Venus + which PSU?  

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Scotsman1000
(@scotsman1000)
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Joined: 2 years ago
 

Trying to work out the best configuration to run an AMD Vega FE with my late 2016 MacBook Pro. I do understand the power supply is the biggest issue with this card, and few/any of the enclosures around can supply enough. I did read of some having success with the Mantiz Venus and swapping out the PSU. I read that the Corsair SF450 is a possibility but I am confused as at 450W it seems too little. Wouldn't a 600W Corsair SF600 be more appropriate?

Or is there configuration that would be more appropriate for the Vega FE?

This is purely experimental so not concerned with voiding warranties etc. I also know the Vega 56 would be a safer bet but these are unavailable right now and I already have the FE.

 

 

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


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Juan C. Yunis
(@juan_c_yunis)
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Joined: 2 years ago
 

@scotsman1000 there are many threads here discussing this including my own one. But to give you a short answer, I have the Mantiz Venus + Corsair SF600 with AMD Radeon Pro VEGA FE and it works very very nice and stable. However other members and including a company (Sonnet) recommend the Enermax SFX 650 which has more power than the one from corsair and also has more power available in the +12V rail.

I use my VEGA FE overclocked/undervolted, running  P6 1527Mhz with 1125mV, P7 1600Mhz with 1135mV, 1100Mhz HBM with 980mV, Fixed Fan at 3000 RPM and power delivery +50% and it's stable, no crashes, no artifacts, no issues.

2018 Mac Mini Core i7 8700B 32GB RAM 512GB SSD + Razer Core X + AMD Radeon VII


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Sky11
(@sky11)
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Joined: 3 years ago
 

Just like with CPUs, you can get lucky with specific silicon - you are able to undervolt and overclock at the same time, but that does mean that this can be done for every board.

Price difference between 600W and 650W is close none, go for higher rating

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


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Juan C. Yunis
(@juan_c_yunis)
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Joined: 2 years ago
 

@sky11 I agree, I think I got a good GPU, however I also tried the PSU with stock settings and it was stable too, but it reaches higher temperatures easier. He should go for the Enermax one, it's been proved that is stable too and it also has better power in the +12V rail.

2018 Mac Mini Core i7 8700B 32GB RAM 512GB SSD + Razer Core X + AMD Radeon VII


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Scotsman1000
(@scotsman1000)
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Joined: 2 years ago
 

Thank you both - super helpful. I'll investigate the Enermax. Any preference between the Mantiz Venus and Sonnet eGFX by the way? Only difference I can make out is the Sonnet has a quieter fan.

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


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Juan C. Yunis
(@juan_c_yunis)
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Joined: 2 years ago
 

@scotsman1000 I prefer the Mantiz because it also comes with great features, like 5 USB 3.0 ports, Ethernet adapter and SATA adapter. I currently have connected:

  • 1 TB 7200RPM HDD
  • Xbox One Wireless Dongle
  • 2MPX Web Camera

And I also use the front USB ports to connect devices and the ethernet to configure devices, etc.

The mantiz comes with 2 FAN headers, one very loud with high RPM and the other one very quiet with low RPM.

2018 Mac Mini Core i7 8700B 32GB RAM 512GB SSD + Razer Core X + AMD Radeon VII


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Jyin
 Jyin
(@jyin)
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Joined: 2 years ago
 

I chose Sonnet for the exactly opposite reason. Every single item Juan listed can take bandwidth away from the GPU. I got Sonnet BB 550 and moved all my Thunderbolt connected device, except for one 4K display (only used part-time) off the bus. I run my Vega FE LC with stock PSU without PD, with no issues (so far).

2017 iMac 5k 27inch RP580 TB3 + Vega FE/LC + Sonnet 550 + EVGA GeForce RTX 2080 Ti FTW3 ULTRA GAMING + Sonnet 550 + Mac/Win10


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Juan C. Yunis
(@juan_c_yunis)
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Joined: 2 years ago
 

@jyin If your mac computer doesn't use PD, then yeah stock PSU should be enough. Also I have all this connected but that doesn't mean that is being used all the time, so bandwidth is good for everything, for example while in Mac i don't use GPU intensive apps, just watching some 4/8K videos, and sometimes I use the internal HD to keep some big files away from my Mac internal SSD and the camera for Skype only when needed.

In Windows, I only use the GPU and the xbox wireless dongle and it's fast, i actually compared connecting the dongle with the Mantiz vs the mac, and no difference in FPS at all.

2018 Mac Mini Core i7 8700B 32GB RAM 512GB SSD + Razer Core X + AMD Radeon VII


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Jyin
 Jyin
(@jyin)
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Joined: 2 years ago
 

I am thinking for OP, he (or she) can limit the PD from the enclosure, and use the Apple power supply. That way, there are no need to replace PSU, if the OME one has enough juice.

2017 iMac 5k 27inch RP580 TB3 + Vega FE/LC + Sonnet 550 + EVGA GeForce RTX 2080 Ti FTW3 ULTRA GAMING + Sonnet 550 + Mac/Win10


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