EGPU High Sierra + Vega RX 64 + 4K, Anyone tried it yet?
 
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EGPU High Sierra + Vega RX 64 + 4K, Anyone tried it yet?  

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Excubitoro
(@excubitoro)
Trusted Member
Joined: 3 years ago
 

I'm looking for high sierra + eGPU + Vega RX 64 + 4K. Any benchmarks out for that setup yet?

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

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Yukikaze
(@yukikaze)
Prominent Member Moderator
Joined: 4 years ago
 

So far there's just one Vega eGPU setup in our table: This one. I haven't seen 4K results for eGPU Vega anywhere.

Want to output [email protected] out of an old system on the cheap? Read here.
Give your Node Pro a second Thunderbolt3 controller for reliable peripherals by re-using a TB3 dock (~50$).

"Always listen to experts. They'll tell you what can't be done, and why. Then do it."- Robert A. Heinlein, "Time Enough for Love."

 
2012 14" Lenovo Thinkpad T430s [3rd,2C,M] + RX 550 @ 10Gbps-TB1 (Atto Thunderlink) + Win10 [build link]  


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acantril
(@acantril)
Eminent Member
Joined: 3 years ago
 

I've just got a VEGA RX 64 .. with a Mantiz enclosure. Its already up and working in windows and macOS High Sierra. Will be looking at benchmarking ASAP.

2019 MacBook Pro 16" / i9-9880HK / 32GB / 5500M 8GB
Razer Core X Chroma / AMD Radeon RX 5700 XT


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ikir
 ikir
(@ikir)
Prominent Member
Joined: 4 years ago
 
Posted by: acantril

I've just got a VEGA RX 64 .. with a Mantiz enclosure. Its already up and working in windows and macOS High Sierra. Will be looking at benchmarking ASAP.

Let us know if it is usable with lastest beta.


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

 
2018 13" MacBook Pro [8th,4C,U] + Radeon VII @ 32Gbps-TB3 (Mantiz Venus) + macOS 10.15 [build link]  


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SoulPictures
(@soulpictures)
Active Member
Joined: 3 years ago
 

Got my Vega64 Liquid today, thrown it into my eGFX 350 with a new powersupply... as soon as 3D stuff comes up it tends to have freezes for several seconds (Steam with TerraTech) apps like "Maps" tend to crash the system with no response at all. Could it be due to Power supply shortages and stuff or is the driver just very premature?

I tested a bit, as soon as I start other apps the same freeze happens and the Fan/Pump kicks in full throttle, any suggestions if those "bios power setting switch" could help?

Within Console I find at least 3 "gpuRestart2017-08-31-165..." files all with some partly readable information afterwards it looks like a memory dump which is not human readable...

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

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Sky11
(@sky11)
Reputable Member
Joined: 3 years ago
 
Posted by: SoulPictures

Got my Vega64 Liquid today, thrown it into my eGFX 350 with a new powersupply... as soon as 3D stuff comes up it tends to have freezes for several seconds (Steam with TerraTech) apps like "Maps" tend to crash the system with no response at all. Could it be due to Power supply shortages and stuff or is the driver just very premature?

I tested a bit, as soon as I start other apps the same freeze happens and the Fan/Pump kicks in full throttle, any suggestions if those "bios power setting switch" could help?

Within Console I find at least 3 "gpuRestart2017-08-31-165..." files all with some partly readable information afterwards it looks like a memory dump which is not human readable...

I am not sure if Apple officially supports Vega10 yet.

Meantime, can you please try the following (to eliminate insufficient power for GPU):

- attach your laptop's power supply so your eGPU box does not provide the power to the laptop (and ensure that there is nothing else power consuming is attached to eGPU box)

- What is the power supply you are using? is there any possibility to try a a bigger power supply?

 

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

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SoulPictures
(@soulpictures)
Active Member
Joined: 3 years ago
 

Sure it somehow looks like not being fully supported yet. GeekBench gives me an "AMD Radeon HD Vega10 XT prototype compute engine" my internal RX460 is called like this "AMD Radeon Pro 460 Compute Engine" through GeekBench. Interesting wise "Vorschau" I think its called preview in the English version dosen't open up an window at all. Within System Information I see the following:

AMD RX xxx:

 

  Chipsatz-Modell: AMD RX xxx

  Typ: GPU

  Bus: PCIe

  PCIe-Lane-Breite: x16

  VRAM (gesamt): 8 GB

  Hersteller: AMD (0x1002)

  Geräte-ID: 0x687f

  Versions-ID: 0x00c0

  Automatischer Wechsel der Grafikmodi: Unterstützt

  gMux-Version: 4.0.29 [3.2.8]

  Metal: Unterstützt, Funktionsset OSX_GPUFamily1 v2

 

  Displays:

DELL U2412M:

  Auflösung: 1920 x 1200

  Framepuffertiefe: 30-Bit Farbe (ARGB2101010)

  Display-Seriennummer: 19K*****ML

During the tests my MBP 2016 15Inch was powered through the LG5K Ultrafine. After having crashes there I switched over to an 87W Power Supply without any changes in behavior. As the new PowerSupply within my eGFX350 I am using an SST-SX600-G, which according to manufacturers data sheet information is capable of 50 amps on the 12V rail and have two 6+2Pin Connectors. Voltage regulation is said to be within 120mV of ripple peak to peak. Within their document they also claim it could support two GTX1080 or one TitanX.

 

Update: 

i tested a bit around, opening up my 350. the pump noise was kind of heavy so I tried to find the spot to somehow dampen it down a bit. During this I noticed. "Maps" is creating a 100% load for the Vega64 and as soon as the last red load digit lights up I can hear a sound which I remember from big inverter units when they are heavily under load. For me this was a bit of an concern due this usally is a sign of overload for those systems. Through this I now flipped the DIP-Switch which is located near the end of the card and reloaded the system. now if the system hits 100% this noise is significantly lower and at the same time the GPU doesn't spin up the pump as quickly.. maybe this is this power saver / efficiency mode which some talked about on twitter? Will keep testing lets see if I can crash it again with this setting, if not I think you might be exactly right about it being an power delivery error crashing the card an some screwing up the driver through this

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

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wimpzilla
(@wimpzilla)
Honorable Member
Joined: 3 years ago
 

As i suggested in the other vega thread in this forum section, where nobody post and read, you should have waited a bit before get vega!

Especially for an eGPU use! Well i wish you good luck!

🙁

2012 13-inch Dell Latitude E6320 + R9 [email protected] (EXP GDC 8.4) + Win10
E=Mc²

 
2012 15" Lenovo Thinkpad T530 [2nd,4C,Q] + R9 270X @ 4Gbps-mPCIe2 (EXP GDC 8.4) + Win10 [build link]  


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SoulPictures
(@soulpictures)
Active Member
Joined: 3 years ago
 
Posted by: wimpzilla

As i suggested in the other vega thread in this forum section, where nobody post and read, you should have waited a bit before get vega!

Especially for an eGPU use! Well i wish you good luck!

🙁

I know that this purchase was quite early especially regarding how fresh eGPU support is and Vega too. But still I hoped that due to the oncoming iMac with Vega support had already progressed a good bit further. Previous to the Vega64 Liquid I successfully ran an RX580 8G for about two weeks now.

At the same time I'm not sure if the liquid version was a good choice due to the pump being quite loud or lets say audible in contrast to standard fan noise. Every reconnect/boot of the eGPU it goes full throttle to calm down after a few seconds. The noise it does while doing this doesn't sound that appealing.

using an oscilloscope I checked the 12V rail during a test with unigine Heaven benchmark and you really can see how the noise level on this rail increases with load from several 10-20mV noise up to about 500mV absolut maximum during full load.

 

btw. I ran an 4K Dell Monitor just a few moments ago with the RX580 sucessfully on 30Hz (DP1.1) and 60Hz (DP1.2) but with the Vega I'm not getting any signal at all no matter which DP protocol version I select within the monitor. I haven't tested HDMI due to the fact that this monitor is only capable of 30Hz @ 4k using HDMI

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

.

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wimpzilla
(@wimpzilla)
Honorable Member
Joined: 3 years ago
 

As i wrote and state again, Vega is a powerful compute architecture, but lack driver and feature support at the moment to be used mainly as eGPU. The die architecture is too much advanced for the drivers and developers to follow behind. AMD do not have the same driver/developer market shares than Nvidia to allow quick improvement at day lunch i.e cuda support, you need to wait a bit.

Maybe some liquid Vega suffer the same issue that the Fury had, the 1st batch had a bad and loud pump. You need to asses if the pump is loud during normal operations, at boot it is normal, could be some pump/fan speed check or lack of control at boot by the bios. Otherwise the watercooling system itself is really well done, featuring even a liquid tank for long lasting AIO cooler capability. You can change the fan by buying a mini 4pin to normal 4pin PWM adapter and then use another branded fan. 

Your SFX 600Watt is maybe not enough, not because of the current rating of 50A, but because of the small factor psu, since in my opinion the psu will be fully loaded even if the current capabilities should be fine. You need to assay again with normal branded psu with at least 400Watt of power delivery, 500Watt would be the nice spot. Removing the peak consumption from the equation, Vega draw on average 400Watt from the psu. That's why you notice so much ripple on the 12v rail, the switching rates or the capacitance of the SFX psu are not strong enough to provide a stable voltage/current delivery.

My R9 [email protected]@1.3v that draw as much as Vega and it bow my 1000Watt psu during summer, the psu heat up quickly. I have noticed that if i do not clean my psu an let it overheat, i got strong degradation on the R9 290 vrm t° and gpu performances.

About Vega and Apple, still it is not clear which is the agreement between both companies. And it is maybe this hidden agreement that driven the disastrous lunch. You need to wait that Apple release support with optimized drivers and OS to fully use Vega on Mac and as eGPU. This is maybe the reason you couldn't get the DP ports working as they should. Since this forum is mainly Apple based, it would be nice if someone poke Apple asking some information about.

2012 13-inch Dell Latitude E6320 + R9 [email protected] (EXP GDC 8.4) + Win10
E=Mc²

 
2012 15" Lenovo Thinkpad T530 [2nd,4C,Q] + R9 270X @ 4Gbps-mPCIe2 (EXP GDC 8.4) + Win10 [build link]  


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