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Radeon RX Vega 64 power requirement
 

Radeon RX Vega 64 power requirement  

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jpme
 jpme
(@jpme)
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Joined: 3 years ago
 

I saw this  https://9to5mac.com/2017/11/27/egpu-amd-rx-vega-64-macos-high-sierra-beta-gpu-video/

And wondering will I have any problem with power requirement if I change to this card?(Sapphire Radeon RX Vega 64)

I have the mantiz Venus as well.
Anybody have the blower at full speed problem with the latest beta?

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


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Sky11
(@sky11)
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Joined: 3 years ago
 

Mantiz officially supports up to Vega 56, perhaps you want to consider that instead...

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


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jpme
 jpme
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that is what I'm aware of until I come across this link above that seems to be fine with vega64, which I'm not very convinced.

I just found out on the video itself looks more like the a Vega 56 while the writings stated Vega 64, strange.

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


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Sky11
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@jpme: To clarify: if you plug Vega 64 to any eGPU enclosure with 550W power supply, it will light up, but no guarantees that, for example in the middle of the game the box won't shutdown and disconnect, or the power supply die prematurely, etc. Why do you think Mantiz does not list Vega64?

With that said, if you absolutely need Vega64, then consider upgrading the power supply (decent 650W or higher). That's all 

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


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jpme
 jpme
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thank you, 

will need to route out to another higher power supply. 

Plus, vega64 is hard to find lately.

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


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Zorn_
(@zorn_)
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Joined: 2 years ago
 

Just to chime in, I currently have a Mantiz Venus and a Powercolor Vega 64. I have never had it shut down on me, even after hours of gaming. That being said, I have changed the Wattman settings a bit so that P6 is the max state...but it's even stable in macOS.

2019 Razer Blade Stealth (GTX 1650, 2TB SSD)
Razer Core X Chroma (Upgraded with SF600 PSU)
ASUS ROG Strix 2080 Ti


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jpme
 jpme
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thanks for sharing. 
when you mentioned gaming is it on bootcamp or Mac?

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


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dstathop
(@dstathop)
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Joined: 2 years ago
 

I have a Vega64 running on my sonnet eGPU. I initially bought the Sonnet550 box and things would work well half the time.  When it worked everything was fine, but sometimes the Vega64 would just shut off.  I dealt with that for a week or so when i noticed a post on Sonnet's website about updating the Sonnet550's power supply with a 650 watt power supply.  When I made that change it all worked flawlessly.

I should add that there was never any indication that the Sonnet550 wouldn't work.  Sometimes it would fail after 10 minutes and another time it failed after a couple of hours.  

Late edit, none of this is using bootcamp, all on high sierra latest release build. I don't mess with any of the betas.

Long story short, update your power supply and you should be right as rain.

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


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jpme
 jpme
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Joined: 3 years ago
 

thanks for sharing.

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


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Sky11
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@dstathop  - that's exactly what I was saying all along... 

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


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ikir
 ikir
(@ikir)
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Joined: 3 years ago
 

Go Vega 56 or prepare to exchange/upgrade PSU. In my Mantiz Venus I have an Enermax Revolution SFX 650W


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


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Jyin
 Jyin
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Joined: 2 years ago
 

Not every PSU/Case/GPU are created equal. You *might* get lucky and get a combo that works with Vega 64 out of the box.

In my Sonnet BB 550, the Vega FE LC worked flawlessly without PSU upgrade, despite the Sonnet saying I need to upgrade PSU.
But keep in mind that, I use this on iMac, so no Power Delivery is needed.
Another thing is that Sonnet lacks extra 'features' that use more power.
Also, the system had issues with 10.13.3. Which seems to be power related, but not in Bootcamp, nor in 10.13.4b5.

The problem I had with stock PSU, isn't stability, it's noisy.
I hated the Enermax as well. Too noisy and no power switch.
I also didn't like always wondering if I had enough power in reserve as the system age, or there is spike power usage.

So, I ended up with going with Seasonic SSR-850TR.. this thing is dead-silent even under full load.
Of course, this PSU is ATX, so I have to leave it sitting next to the BB 550.

---

On side note.. this PSU 'will' fit inside of BB550... if you are willing to do some modding.
You would need to move the fan a little to the left, drill bunch of vent holes around the PSU opening, and new mount screw holes.

I don't intend to move this around a lot, and full-modular PSU means I can get cables disconnected at PSU side, when I do.
So I didn't bother with modding.

J

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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