lilins

oh ok thanks anyway. I just have to look for a brand new dell da2 psu.

Sent from my Huawei P9 "TraPar"

@Dschijn I tested again my Da-2 and it seems it shuts down after some use. Do you know where in europe i can find DA-2 in good state? where did you bought yours?

thanks

Here is the schema i made of my setup:

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Here is the cable exit and the barrel

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I've finally made the barrel connector out of the information i received on another thread. It works well.

The thing is to keep it simple. So i simplified the design.

The design i came with has only one power connector, suitable for both a Dell DA/2 with included shorted power on port and pci-e 6pin from an atx type PSU.

the updated pcie 6 plug with barrel power connection

The PCIe 8 connected to Pcie 6 low profile cable with the power on short for Dell DA-2

The power on short for Dell DA-2 i'll shorten it or link it to a 12v power button if i can.

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I'll try to do this quickly

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I'll try to do this quickly

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So, next i am going to try use only the seasonic PSU to power both Akitio board and GPU, I'll make some more holes to vent the case, and i'm going to change the small fan (the akitio case fan i already replaced by a 60*60*10 and put just behind the front panel) by a new, quieter one.

During normal use, the zotac don't launch the fans

During Load, the fans launch and the akitio case heat up. As the case look like aluminium I'm not especially worried, looks like a Mac heating up, but if i can lower the case temperature a little by opening more vent, i'll do that.

The goal is to have a quiet case under 20Db for normal use, and not too hot under load.

On 19/06/2016 at 11:58 PM, goalque said:

The eGPU ROM must be UEFI compatible, otherwise screen switching doesn’t work. Incorrect ROM might work, but better to use the original. One restart (F1) is required after "Load GOP drivers" is set to ON. Thanks for testing!

I've just seen the zotac 960 gtx vbios is not uefi compatible... if i understand well, some of the features may not work with it

An EFI application is written in C (does not use any scripting language).

 

@juniordiscart eGPU is not necessary in order to use this function. Anyone who is interested in testing with a fresh installation of Windows 10 and MBP11,3, please contact in PM and I can give the download link. It does work with the MBP11,5 but for some reason some Windows updates messed up something (maybe Iris Pro drivers).

 

@lilins

a 2014 Mac mini shows the custom boot screen via eGPU (not included in the demo).

Is the script using temporary efi parameters (wich can be returned to default using pram reset?)

If yes i'd be glad to test it. I'm not a developer but i'm a mac certified tech, so i should be able to get out of some mess

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Hi  goalque,

It's a really great work and thanks for your contribution to the egpu player.

I am going to build my egpu with the akitio enclosure after the release of gtx 1060. My laptop is late 2013 rmbp with the 750m dgpu. So I can test your 750m version as well.

Thanks, I’m waiting for the outcome of @P-Mac’s testing. If “Disable dGPU” option for the MBP11,3 turns out to work well, the new demo will be available for all on GitHub.

 

It’s still unclear why PCI bus scan for detecting the eGPU works randomly with the Thunder2 after restarts. The v0.0.2 is coded to identify only newer 156C Thunderbolt controllers.

Does that script work on a mac mini to have display during boot?

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How did you managed to install GTX 960 driver? and which driver did you use?

The driver part is the most easy part, but for now, on the Mac Mini, it can only work if you connect display to the eGPU.

http://www.egpukit.com

There is a shell script to download and run

For now you don't have display until the login window. (After the whole boot process). But i'm following a thread where someone has worked on an efi boot egpu enabler for mac. I'll test that end of week.

So up until now, what did i used:

1) Akitio Thunder 2 PCI-E chassis

2) Zotac GFX 960 video card

3) power supply seasonic m12ii (after failing with a dell DA-2 220)

4) a low profile pcie 6 pins cable

5) a 1*pcie 6 pins female to 2* pcie 6 pins Y cable

6) a 8 pins pcie cable

7) a dc barrel + cable

8) a driller and a dremel

9) a 60*60*10mm 12v fan

10) some patience for reading all the threads, testing, and working on it

Here are some of the pictures of the work in progress:

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Hi. I've been working on a setup for my mac mini, being thrilled to see that there was finally a way to use thunderbolt for eGPU.

I open this subject now with a final picture, and i will be posting later all the process to get there and go further.

The actual Setup. V1.0

Yes it is!

So the goal for me was to inspire me from all the works here and do my own with one goal: i wanted to keep the Akitio box closed.

I did it!

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1 hour ago, Psyrecx said:

I got mine on Ebay :/

Me too... but... well. lucky or not i think

The 220w Dell DA-2 is powerful enough for a EXP GDC and Radeon RX 480.

Yes, that is why mine may be disfunctional. But i don't want to order a used one to have the same issue, and i think that a brand new one may be more expensive than even a modular PSU. Except if you know where to find cheap and good quality or brand new Dell DA-2 in europe

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Ordered! My German is limited, but striving for the goal of perfect egpu helped me understood. Thanks @Dschijn

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2 hours ago, Dschijn said:

YOu can test with the AKiTiO PSU, but that should not be a long time solution.

I've read about ground loop issues, but really, up until now this is the most stable setup i had

I even managed to put limit the need of cutting too much the external chassis

Maybe the shortage issue came from the barrel, so maybe it'd be better to soldier directly the power intput for the case to the power board of the akitio

Anyway, that much i know:

The DA2 PSU I have may be tired

The standard PSU i have may not be good enough to power all by itself with peaks.

SO:

1) i'm gonna look for a descent modular PSU to be able to use less cable. then i'll find a way to ikeahack it under my desk

2) if the setup holds like this i'll try to solder dc input under the barre plug board

3) either if that works or not, i'll have to create vent in the outer case for the air flux, and cut the rear panel to let my power cord go out from the case.

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6 hours ago, Dschijn said:

Can you post a close up of the barrel plug you are using and the wires to the 6-pin.

Does the barrel plug "wiggle"? Maybe it does not sit right?!

To test that i'm trying a setup using the original akitio power for the akitio case and not the customized barrel plug, and yes with it there was some play and false contact...

(edit)

so it seems to crash less like that, but, i have some crash too. but it may be because of heat, here it's pretty hot these last days. anyway it doesn't seems to shut down as soon as i've launched it with the original akitio power adapter.

@Gosmond I am trying a setup with 960GTX (zotac ) akitio, and i already tried dell psu but i had some power cut (and the dell psu stuck in "security mode" had to wait a few minutes to start it back) i first thought it was the dell so i bought a brand new PSU (advance TX-500W but not high quality one i think) and even if i can run gputest without a glitch for hours, the psu will cut itself and put in security if i launch a video game.

do you think trying to use psu for geforce only and akitio power for the box can solve this?

I spoke too early. I end up with same kind of issue with a full scale brand new psu:

Playing on a game or changing display settings shuts down egpu's psu in what i assume is security mode 'cause i can't relaunched it like this.

Before doing that the damn things worked for 25 minutes under gpu test:

Here are pics from the setup:

So i end up with same issue as with dell da2. Good thing is my da2 may be good and i may end up using it.

But what can cause this kind of issue? Has anyone seen something similar?

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I'm quite interested in what i should do with all the unused cables from my atx psu? should i just fold the cables near the psu and let the sit? should i cut them? should i?

54 minutes ago, Dschijn said:

 

Is it a 220W Dell DA-2? That should easily handle a GTX960. Ran my GTX 970 with high OC without a problem.

 

Yep, so i think the Dell DA-2 is a little tired  tried on atx psu it worked like a charm under 1h30 stress test gpu test 

Hi guys, i'm currently making an egpu for my mac mini, using akitio thunder 2 and a zotak 960gtx. I first went for the Dell DA2 psu, but i hat several times when then power will cut and it'll make the mac crash... As the panic log shows the nvdaresmanweb as the main culprit i think the power supply overloaded and went into security mode and the nvd driver crashed. When this happen i can't connect the power supply soon. Have to wait some time. That makes me think the overload may not be power but temperature, so maybe my power supply has some issue. Am i right?

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