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sonnet breakaway box with SFX-L ?
 

sonnet breakaway box with SFX-L ?  

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(@seb_h)
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Joined: 2 years ago
 

Hi,
i want to buy a sonnet breakaway box but i'm not sure what psu i should buy and what version of the sonnet egpu case.
i want to use a AMD Radeon Vega Frontier Edition Liquid with this case. For a Mac Pro 2013 and a Mac Book pro 2016.
Sonnet says on there Webpage Enermax Revolution SFX 650W SFX12V would be good. i was thinking maybe a SFX-L PSU fits too with more power and a quieter fan like the Silverstone SX800-LTI. Have anyone tried a SFX-L PSU?

Mac Pro 2013 10-Core 3Ghz 64GB Ram d700


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1337LutZ
(@1337lutz)
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Joined: 3 years ago
 
Posted by: Seb H

Hi,
i want to buy a sonnet breakaway box but i'm not sure what psu i should buy and what version of the sonnet egpu case.
i want to use a AMD Radeon Vega Frontier Edition Liquid with this case. For a Mac Pro 2013 and a Mac Book pro 2016.
Sonnet says on there Webpage Enermax Revolution SFX 650W SFX12V would be good. i was thinking maybe a SFX-L PSU fits too with more power and a quieter fan like the Silverstone SX800-LTI. Have anyone tried a SFX-L PSU?

Correct me if im wrong, doesn't the box come with a 300 / 550w PSU? Seems like that if I read the key features of the different offerings.

 

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


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(@seb_h)
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Joined: 2 years ago
 

Yes there is a version with 550w but Sonnet says its not enough and i think also very loud.

at Sonnet FAQ i found this:

AMD Radeon Vega 64 (liquid cooled):
This card requires a 650W power supply and a Power Delivery limit of 15W. Sonnet has Thunderbolt certified the eGFX Breakaway Box models including their power supplies, and we cannot officially recommend changing the power supply. if you must have Vega 64 (liquid cooled) support now, you can replace the stock power supply in the Breakaway Box 350 which is programmed for 15W PD (but not the Breakaway Box 550, which is programmed for 87W PD, and not the Breakaway Box 350 Developer Edition which is programmed for 60W PD) with an Enermax ERV650SWT Revolution SFX 650W Plus Gold. If you upgrade to this power supply, Sonnet will honor the warranty for all other covered components.

Mac Pro 2013 10-Core 3Ghz 64GB Ram d700


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Hana_Dusikova
(@hana_dusikova)
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Hi, I have liquid cooled Vega (SAPPHIRE Radeon RX Vega 64 Liquid Cooled) in Sonnet Breakaway Box 550 with replaced SFX-L PSU and it's working. PSU is SilverStone SST-SX800-LTI. Yes, there is not much space for cables between PSU and water cooling block.

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


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itsage
(@itsage)
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@hana_dusikova would you mind sharing some photos of the internal arrangement? I’m looking to do this swap for Mantiz Venus so that it can power the Vega Frontier Air.

Best ultrabooks for eGPU use | eGPU enclosure buying guide


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Sky11
(@sky11)
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Posted by: Hana_Dusikova

Hi, I have liquid cooled Vega (SAPPHIRE Radeon RX Vega 64 Liquid Cooled) in Sonnet Breakaway Box 550 with replaced SFX-L PSU and it's working. PSU is SilverStone SST-SX800-LTI. Yes, there is not much space for cables between PSU and water cooling block.

I checked the spec of the power supply, seems to be a very good power supply:  http://silverstonetek.com/product.php?pid=731 -

Combined +12V
792W

In less than 2 weeks AMD will post Radeon Adrenalin 18.1.1 driver which has a number of stability improvements for XConnect as well as other fixes, I would suggest you to try that driver.

 

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


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(@seb_h)
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Joined: 2 years ago
 
Posted by: Hana_Dusikova

Hi, I have liquid cooled Vega (SAPPHIRE Radeon RX Vega 64 Liquid Cooled) in Sonnet Breakaway Box 550 with replaced SFX-L PSU and it's working. PSU is SilverStone SST-SX800-LTI. Yes, there is not much space for cables between PSU and water cooling block.

perfect thx! How is the noise? I think i will try the SX800-LTI too then.

Mac Pro 2013 10-Core 3Ghz 64GB Ram d700


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(@seb_h)
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Joined: 2 years ago
 

The cables where a little bit in the way but it works.PSU is silent the Vega is not the Fan is at full speed.

 

Vega

Mac Pro 2013 10-Core 3Ghz 64GB Ram d700


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Jyin
 Jyin
(@jyin)
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I tried the exact same setup. I couldn’t get it stable. Under the load, the gpu shuts down with SX800 installed in OS X.

Both the Geekbench 4 and Heaven could not complete. The Valley did, but the shut dwown also happened under normal usage.

The VA reading at the wall never went over 350, so it can’t be overload.

I just returned my SX800 and went back to stock.

IMG 20180117192124

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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(@seb_h)
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Posted by: Jyin

I tried the exact same setup. I couldn’t get it stable. Under the load, the gpu shuts down with SX800 installed in OS X.

Both the Geekbench 4 and Heaven could not complete. The Valley did, but the shut dwown also happened under normal usage.

The VA reading at the wall never went over 350, so it can’t be overload.

I just returned my SX800 and went back to stock.

IMG 20180117192124

The same happend to me too yesterday with Geekbench 4 and Heaven. The first time i tried Heaven it complete. 

Damn so maybe i have to return my SX800 too. I think i will try the Enermax Revolution SFX 650W  then.

How was the Fan noise?  The Fan was very load on my setup so much loader than my Mac Pro.

Mac Pro 2013 10-Core 3Ghz 64GB Ram d700


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Jyin
 Jyin
(@jyin)
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Have you had any issue with the stock PSU?

Since we are both using the desktop machines, PD isn’t happening, so the stock PSU should have plenty of head room.

As far as noise goes, nothing in the market would be quieter than the MacPro 🙂 Apple is unbeatable when it comes to silent computing.

To reduce the noise and heat, I’ve modded the the BB this way.

IMG 20180117192446

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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(@seb_h)
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I'm not even tried the stock PSU i just put it out when i start to put everything together.Yeah of course the Mac Pro is super quiet but that loud by 30 Celsius and a Liquid Cooler. I was shocked. One time i boot up to Bootcamp and the Vega stayed quiet but without driver and so on.I'm asking you to point out if this is normal a problem with osx at the moment or my fan is broken. I'm just at the beginning of my tests.  

Mac Pro 2013 10-Core 3Ghz 64GB Ram d700


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itsage
(@itsage)
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@seb_h the Vega drivers in macOS 10.13.2+ is the cause of high fan speed and loud noise. If your Vega eGPU is running quietly at idle in Boot Camp, it’s fine.

Best ultrabooks for eGPU use | eGPU enclosure buying guide


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Jyin
 Jyin
(@jyin)
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I am actually happy with the noise level the Vega FE LC puts out, even when the case top is off, at the idle load. I don’t do much heavy loading on GPU on OS X.

I do hear others says the same thing about fans in OS X, so I don’t think yours are broken.

Is your fan running high on idle load? Or what are you doing when the fan runs high?

Maybe I can see if I can replicate your issue on my rig.

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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@jyin @seb_h guys I had the same issue, Silverstone PSU units are bad for eGPU setups. I have a Mantiz Venus with AMD VEGA FE Air, I knew that the stock PSU wasn't gonna be enough (FSP 550W) for the card so I bought a Silverstone SFX 650W 80+ gold, according to some users 600W+ should be ok, maybe not for overclocking but ok for stock speeds. So as soon I booted into mac I wanted to try some benchmark apps and I was able to complete Valley and LuxMark but when I tried Geekbench 4 I got the first crash, so I tried Heaven and it was another crash.

I was afraid that maybe my card was defective so I went back to Windows using bootcamp and I had a lot of crashes, the only way to keep it stable was by undervolting but I wanted to make sure that the card was good so I switched back to the stock PSU (FSP 550W) and no crashes at all in Mac, all benchmark apps work and they are able to complete, in windows I didn't have too many crashes like the Silverstone PSU but 550W wasn't good enough.

So I decided to buy another PSU, but this time from a good and more reliable brand, so I went with Corsair, the SF600 (thanks to @irev210 and @itsage), and that was the best decision ever, no crashes in Mac and Windows, no need to undervolt (I still do it so I can get higher GPU clock) and it's been really really good and quiet.

Inside the Mantiz, I have the VEGA FE card, USB devices connected (Web Camera, Xbox One Wireless Dongle) and a 2.5" 1TB 7200RPM HDD, plus it supplies 87W PD to the Macbook.

Some pictures of my setup:

20180116 213229
20180119 001344
20180119 001318

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


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irev210
(@irev210)
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Glad you are seeing nice stability - it does seem to be that the silverstone can't handle either the high cross load or the transient response times.

The corsair sfx is really good - I am thinking you could probably just be fine on the 450w version as well.

Thanks for updating

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


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Jyin
 Jyin
(@jyin)
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I just did some testing.

With the case-mod, the noise difference between the OS X and Windows at idle is 1 or 2 dB at 2 feet away (42-44 dB vs 44-45 dB).

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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(@seb_h)
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I change now the PSU to a Enermax ERV650SWT Revolution now it complete Geekbench4,Heaven and Valley.

But when the breakaway and the mac is off i recognise every 5-10 sec a little spin of the Fan and a click sound from the PSU.

The Silverstone had just a click why that? Both do something strange when they are off but the Powercord is connected.

Bildschirmfoto 2018 01 19 um 22.28.59

D700 vs Vega FE

Mac Pro 2013 10-Core 3Ghz 64GB Ram d700


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Sky11
(@sky11)
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Guys, there is a reason why Sonnet and AMD recommend Enermax SFX 650W power supply. There both about the same price (Corsair seems to be a bit cheaper), but Corsair is rated 50A on 12W rail, while Enermax can deliver 54A (that's not peak, that's sustained!), plus if you look at 5V power capacity of both, Corsair can do 120W, while Enermax is rated only at 90W, even though it is higher power. That makes me think that Enermax' design is heavily focused on power delivery on +12V rail - that's the one powerful GPUs use.

I have not seen or heard of any Enermax 650 failure in eGPU yet - anybody?

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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Posted by: Sky11

Guys, there is a reason why Sonnet and AMD recommend Enermax SFX 650W power supply. There both about the same price (Corsair seems to be a bit cheaper), but Corsair is rated 50A on 12W rail, while Enermax can deliver 54A (that's not peak, that's sustained!), plus if you look at 5V power capacity of both, Corsair can do 120W, while Enermax is rated only at 90W, even though it is higher power. That makes me think that Enermax' design is heavily focused on power delivery on +12V rail - that's the one powerful GPUs use.

I have not seen or heard of any Enermax 650 failure in eGPU yet - anybody?

I don’t wanna sound rude, but I think you are wrong, they used a SFX-L from Silverstone with 800W that’s has 80W in the 5V and 792W in the 12V with 66A, so this PSU should have plenty of power for this GPU, but it’s not stable, it has to be something with crossloading or transient times like @irev210 suggested.

I’m glad the Enermax is an stable option that Sonnet honors the warranty of the other components. Enermax was one of my options but I decided to go with Silverstone because I was familiar with their cases and other products that were good, but I was wrong their PSUs are not that good, I read somewhere that their PSUs are based in a sirfa platform which is not that great compared to the ones made by Corsair.

I think PSU makers should go thru a new EGPU certification process and EGPU case makers should offer PSU upgrades and keep honoring the warranty.

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


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(@seb_h)
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@Sky11

A spinning Fan when everything is off with the enermax.

 

Mac Pro 2013 10-Core 3Ghz 64GB Ram d700


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Sky11
(@sky11)
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Joined: 3 years ago
 
Posted by: Seb H

@Sky11

A spinning Fan when everything is off with the enermax.

 

That's not a failure! Power supplies continues to provide charging current to the laptop even when the laptop is off. I personally drained a laptop, shut it down, connected to Sonnet 550/650 and it fully charged the laptop.

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


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Jyin
 Jyin
(@jyin)
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Posted by: Sky11
Posted by: Seb H

@Sky11

A spinning Fan when everything is off with the enermax.

 

That's not a failure! Power supplies continues to provide charging current to the laptop even when the laptop is off. I personally drained a laptop, shut it down, connected to Sonnet 550/650 and it fully charged the laptop.

What if it is connected to desktop? Then the power draw should be minimum. At that point, Enermax should go into the fan-less mode.

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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irev210
(@irev210)
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Posted by: Sky11

Guys, there is a reason why Sonnet and AMD recommend Enermax SFX 650W power supply. There both about the same price (Corsair seems to be a bit cheaper), but Corsair is rated 50A on 12W rail, while Enermax can deliver 54A (that's not peak, that's sustained!), plus if you look at 5V power capacity of both, Corsair can do 120W, while Enermax is rated only at 90W, even though it is higher power. That makes me think that Enermax' design is heavily focused on power delivery on +12V rail - that's the one powerful GPUs use.

I have not seen or heard of any Enermax 650 failure in eGPU yet - anybody?

I think as we explore this topic further, QUALITY over QUANTITY is what matters here.

These are heavily cross loaded PSUs with extreme changes in 12v rail loads in very short periods of time.  It's not how many amps you can deliver over 12V, it's about the PSU's quality.

The Enermax sfx has been shown to be pretty high quality and be able to deal with high cross loads.  Not sure which is better, the corsair or enermax, good thing for eGPU.io to review/test.

Bottom line, I originally was making the same  mistake but quickly realized that what we are asking PSUs to do is tough - quality is important here.

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


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(@seb_h)
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Joined: 2 years ago
 

Ah that make sense that it has something to do with charging. The Enermax don't go to fanless mode even when the Mac Pro is running and on idle.

I can listen the Vega Fan and the sound from the video. Just a short Fan on off from the PSU.

Mac Pro 2013 10-Core 3Ghz 64GB Ram d700


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LatestDays
(@latestdays)
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I have been running a 2080 TI (Gigabyte windforce non-OC) in a Sonnet 550W for a couple of months and found that, if I increased the power limit over the default 100% (even to 102%), found that a Furmark run would reliably lock up. The Sonnet had previously been very happy running a 580 from my 2017 MacBook Pro 15" without issue. I'd also been mildly annoyed by faint ticking/fizzing after client PC shutdown from the power supply.

As the "suggested" 650W Enermax model didn't seem to be easily available in the UK, I have crossed my fingers and replaced the power supply with a Silverstone SX700, and the stock case fan with a Noctua NF-A12x25. There's still about 4 cm clearance remaining between end of the new power supply and the case fan.

Furmark runs now complete with powerlimit increased to the maximum permitted 112% and I've been able to apply modest overclocks to the card.

2080 TI in Sonnet Breakaway 550, with Silverstone SX700 replacement power supply and Noctua NF-A12x25, running on ASUS ROG Zephyrus M GM501. Also, MBP 15" 2017.


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