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Found 14 results

  1. Hi there, lots of useful info on here! Still I need to ask a few questions as my setup isn't quite working! I've a 2012 rMBP on El Capitan 10.11.2 and I used the automate_eGPU.sh script to quickly sort out the modification of files and installation of NVIDIA web drivers. I'm testing it with an NVIDIA GTS450 which is connected via a Sonnet Echo Pro and PE4C 3.0. SW1 is set to 2 (PERST# delay 9.8sec), SW2 to 1 (CLK no delay). It's picked up fine in OS X and I can drive an external monitor with it no problem. However, it doesn't appear to be doing any rendering - all the legwork is still being done by the internal GT650M!!! It shows each screen as being driven by the GT650M in About This Mac, and testing with games seems to corroborate this. What gives? I can't find any examples online of other people who've had this problem (at least in OS X). The GTS450 is correctly identified in System Information. A second question... I know there isn't a way to get the output on the internal LCD on Windows on this Macbook due to it having a dGPU and Apple's rubbish firmware, but is that the case in OS X? The Intel HD4000 is accessible there, does that mean I could funnel the graphics back to the internal LCD or is it just impossible on all counts?
  2. Hey Guys! I have a 2016 15" Macbook Pro with the Radeon Pro 455 Gpu inside. My plan is to get a working eGpu setup for both Windows and MacOs so I can play games in Windows and use the Gpu ins MacOs for productivity. I also want to just use an external Monitor, I don't need to get it to work on the internal Display. I also already have a Nvidia GTX 970 from my current Desktop computer that I would like to use. Unfortunately Razer doesn't sell the Razer Core in Germany but I found one on Ebay for 250€ which is a pretty good price considering that it costs double in America. Also I think this would be the only eGpu solution that I have access to at the moment. Another thing is that I don't have massive amounts of knowledge to find solutions to problems which may occur during the process and money (the Macbook was already pretty expensive), so I would only do it if it really works well. The guides from people who got setups like this to work always seem relatively straight forward to me but I wanted to get your opinion first before I buy something for 250€ and it doesn't work. Thanks in advance! Johannes
  3. THIS ADVERT HAS EXPIRED!

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    160.00 USD

  4. THANKS TO ENCOURAGING GUIDES ON THIS SITE, I HAVE MANAGED TO GET MY EGPU SETUP WORKING Macbook Pro Retina 15” Mid 2015 AMD Radeon R9 M370X 2048 MB 2.8 GHz i7, 16GB RAM Windows 10 64bit ( bootcamp ) OSX Sierra Enclosure: AKiTiO Thunder2 Graphics card: EVGA NVIDIA GeForce GTX 1060 6 GB GDDR5 Memory PCI Express 3 Graphics Card Power supply: EVGA 100-W1-0500-KR - 500W 80 Plus Power Supply (100-W1-0500-KR) Connections: Molex to barrel adapter to connect PSU to GPU and enclosure GPU powered by the PSU directly HDMI cable to connect GPU to monitor Thunderbolt cable to connect Thunder2 to Macbook PSU powered on using the 'paper clip technique' Monitor: Dell U2715H 27-Inch Widescreen IPS LED Monitor Info and guides: https://www.techinferno.com/index.php?/forums/topic/7947-the-basic-egpu-hardware-guide-for-macs/#comment-118751 Process: Power on and connect the GPU, check that the Nvidia is showing up in the device manager Install Nvidia drivers Disable discrete AMD GPU in the device manager and shut down Boot back up into Windows10 and BOOM, Windows10 should now be using the GPU. Results: I can reliably get the eGPU to work every time and have experienced NO CRASHES! I still play games using the AMD when I'm not at my desk, which just requires re-enabling the AMD. Sometimes switching the AMD on and off can cause the device manager to hang, but restarting Windows 10 sorts this out so I've not had any problems using the system both ways. Games Performance: Doom - 1440p max settings - 60pfs ( WOW!!! ) Deus Ex Mankind Divided - 1440p max settings - 30-45 fps Just Cause 3 - 1440p max settings - 30-45 fps Star Wars Battlefront - 1440p max settings - 30-45 fps Overwatch - 1440p max settings - 60fps Getting Windows10 to select the eGPU as the primary display device: As far as I can tell, all that is required to get the GPU to power the external display is to disable the discrete graphics chip (AMD R9 M370X) via the device manager in Windows10. In my experience, provided the eGPU is connected, disabling the AMD R9 will automatically cause the OS to switch to the eGPU. Although a couple of times when I've done this without restarting, the AMD has switched itself back on! Provided the eGPU is connected and powered on, and the AMD is disabled, booting into Windows 10 will automatically select the eGPU and you're away!
  5. Currently I have two different akitio thunder 2 setups and one runs with 970 (will be referred as setup 1) and other with 1060 (will be referred as setup 2). 970 uses a more basic cabling setup and it has wire mesh paper tray cut attached. The other one has 8pin male connector replacement for the adapter socket and drilled surface. In this post I would like to do a quick comparison in between those two for cooling and performance. BTW, I am just an amateur who enjoys playing rc toys, completely have an unrelated profession and wanted to build egpu setups as a hobby. Also, I have many macbooks around me and wanted to expand their lifespans increasing their graphical design, gaming and cuda computation capabilities. I could not have gone this far without @Dschijn @Nando @goalque and @seefew s setups and descriptive posts. To start with for sure you will need Akitio thunder 2 or preferably Thunder 3 and also a graphic card. I decided to fit graphics cards in to the boxes in order to carry them around with a camera bag (cheap canon or nikon camera bags are perfect to carry akitio setups and their adapters). My must have tool kit list: 1. Dremel rotary tool (even the cheapest will do the job), dremel work station with. Proxxon and bosch also have similar tools but the key is head should be capable of holding small cutting wheels for hobby crafting. 2. Soldering station capable of at least 350 degrees Celsius (if you are going to replace akitio thunder 2's adaptor socket you would need at least 350 for sure). 3. Heat gun to wrap cable tubes 4. A multimeter to mesure 5. Glue gun 6. Welding kit (if you will cut/expand the front but still make it use the front grill) Consumables: 1. Zip ties 2. Solder wire 3. Glue gun sticks 4. 2.5mm Drill bits (at least 20 for case drilling required) 5. Dremel metal cutting wheels (at least 5) and couple grinding and polishing heads. 6. PSU cables (18 AWG or something like that) Used parts and pieces in my Akitio setups (I have no endorsements or something like that from the brands but I will just write them so you guys can found them easily): 1. Frozencpu connectright 8pin male eps 12v p8 connector ( setup 1) $2.98 2. 4pin male and female connector (to attach capacitors with fashion) $0.55 each 3. Gold plated female and male pins - 4 pack and $0.99 for male and $0.99 for female 4. Mod/smart full pin removal kit (to remove back pin connectors if you will mess the cabling) 5. Full automated ksd9700 series thermal switch to attach to front fans (I preferred 70 degrees) 6. Noctua nf9x14pwm 92 x 14mm pwm fans $21.95 x 2 (you can fit 2 of those beasts and yes they are a game changer) 7. Moddiy.com 8-Pin CPU/EPS Male Header Connector - 90% Angled - Black 1.99 USD (setup 2) you need at least two in order to get couple extra long pin legs 8. Moddiy.com Mini 4-Pin GPU to 2 x 4-Pin PWM Fan Adapter (to connect noctua fans to graphic card's pwm socket to have digital spin controls) $5.99 9. Dell 220w DA-2 Ac Power supply adater $23.99 or Corsair sf450 mini psu $89 (Dell da2 are what I prefer for my setups but for larger graphics cards sf450 is the ideal) 10. 4700mf capacitors (I used 4) $0.8 each 11. 12v swich (I used round led switch for my setup 1 and stick switch for setup 2) $0.4 12. PCI-E 8 PIN Y SPLIT TO 90 DEGREE RIGHT LOW PROFILE PCI-E 6 AND 8 PIN (you can make one by yourself or buy one from ebay) 13. Cheap 60 x15mm fans (I used two of those) $4 Cabling for setup 1, takes around 4 hours to complete (I am going to describe only the difference between other setups posted in the forum): 1. Easiest way around is expanding low profile 8pin connector's cable to somewhere around 15-20 cms in order to make an L shape starting at the top where gpu's power socket rests and take it down to the akitio's power adapter sockets. At this point you can reduce the cables to one yellow and and one black and solder those two to the back of the power socket. Image below is from my setup 2 but it represents where you should solder the yellow and the black. 2. Bend left leg of the graphics card and place a 8 pin male connector and solder each yellow and black cables to get only one of each and solder those two cables to back of the akitio 2's power socket. So in total you would solder 2 sets of cables to the back to power the graphics card and to power the akitio's card using the power coming from the 8 pin connector. If you are using a psu such as corsair sf450 you can use all 4 black and 4 yellow cables to power the board but if you will use dell da2 you should use one for the power switch and other should be blank so only 6 cables will power the card. (this step is extensively described in other posts) 3. Cut back of the two plates in a rectangular 8pin shape using dremel rotary tool and steel cutting wheel. This step just requires attention but it is very easy to do in 3 minutes. Just use a pencil to draw the shape and slowly cut the plate. (image was on top of a document so I did a quick edit) . 4.I used a round led switch for my first setup and attached it to the front of the case. To fit the switch I first created a small hole with a 2.5mm drill bit and expanded that using a round dremel rotary head. Then attached one cable to one of the 8pin connector's line's to power dell da2's switch line and grounded it to one of the 3.4v sockets as the yellow cable at the right hand side of the card. 5. Cover all cables and sockets with tubes, or hot glue gun. Cabling for setup 2 takes around 4 hours to complete: 1. Using the soldering iron remove the existing power socket of the akitio from the board. Heat it from the back legs and it will drop. 2. Organize legs of Moddiy.com 8-Pin CPU/EPS Male Header Connector in order to match the holes. I soldered and grouped legs of 2s to fit only one positive and one neutral leg. 3. Soldered two separate cable lines to the legs to power gpu and attached a Y SPLIT TO 90 DEGREE RIGHT LOW PROFILE PCI-E 6 AND 8 PIN 4. Soldered 4 capacitors to 4pin connectors via cable then attached them to other soldered pair. 5. Soldered one yellow one black cable to the board in order to power front fans and soldered ksd9700 thermal switch to the black cable. 6. Paired two front fans cables with matching cables and soldered to the yellow cable (step6) and empty black cable coming from thermal switch. 7. Cover all cables and sockets with tubes, or hot glue gun. Ventilation for setup 1 takes around 2 hours to complete: 1. Cut the exterior of the box using steel cutting wheels following rectangular shape among yellow and blue sections of the diagram 2. Cut a rectangular mesh grill from the paper holder and slide it in to the box. 3. Stick mesh grill with a epoxy or weld it in. 4. Apply black spray paint (I took it to a auto paint shop for proper painting) Ventilation for setup 2: 1. Cut the front inner side in a rectangular shape to fit to 60mm fans on top of each other. To be able to do so you should weld sides of the front sides so it does not come apart. Place two fans. 2. First hit with a sharp steel to create small holes (punches) following the diagram. Then drill thousands of 2.5mm holes using dremel work station and rotary tool. (This step took my 22 hours) 3. Clean holes with sandpaper and paint. (In the attached image I was using it with the setup 1) Post will be edited soon...
  6. Hello everyone! I am currently working on an egpu/docking station project for my 2015 macbook pro, and I am having some issues mounting everything into the case I've chosen. So far, I have gotten it to work with my windows 10 installation (on an external samsung evo ssd inside the mini-itx case) with my gtx 970, but now I am trying to actually mount the akitio thunder2 board and the graphics card inside a mini itx enclosure. The power supply, hard drives, and usb hub are already mounted inside of the case with plenty of room left. The graphics card has to mount in the slot that it would use if there was a mini itx motherboard in the case, because it won't fit anywhere else. Here are my problems: If you look at the first attached image, this is the graphics card mounted where it would go normally. It is currently only being held in by the two screws holding the IO side of the card onto the case. As you can see in image 2, the pcie connector is underneath the card and very close to the bottom of the case. I bought a pcie riser, but having it being under the card and bent to the side put it under too much stress, and the cable tore. It also pushed the graphics card up so that it was just barely able to mount in place. What I decided I needed was a right-angle for the pcie connection, but every one I found online, and I mean EVERY ONE, went the wrong way (left instead of right) , which put the connecter against the wall of the case, making it worse. Can someone help me find a right angle adapter that bends the correct way, or find another solution? I accidentally bought this: https://www.amazon.com/gp/product/B007Q92R7M/ref=oh_aui_detailpage_o01_s01?ie=UTF8&psc=1 but it was not the pcie connector on my graphics card. It was a little different. Another problem is that the akitio thunder2 board has issues with facing the right way. If you look in picture 3, you can see the board in its enclosure. In order for the pcie connector to be oriented the same as the graphics card, the board has to be mounted so that the black plastic pcie connector is closest to the graphics card, and unfortunately, facing away. Also, the thunderbolt ports and power port end up smushed against the wall of the case, or close to it? Again, how can I fix this? I was so excited to get this project working and am now having a headache trying to make it all fit together! This community has been absolutely excellent in helping me get my egpu working, and I cannot thank those that have taken the time to make guides enough. Thanks in advance to anyone who has any ideas how to get this mess together. -Hunter
  7. Hello all, I recently put together my egpu configuration using the video below down to a T. Every part of my set up is in this video and I've done exactly like this guy has said to make my set up. I've gotten my egpu to work finally by plugging in the thunderbolt2 cord when both the MacBook and egpu are powered down. Then I power on my back into the selection screen to choose windows or mac. Then I turn on my egpu and hope for the best. I've found this works about 30-40% of the time so if someone has a way to increase my chances feel free to comment. I'm using a MacbookPro 13in Retina with dual core processor and Intel Iris 6100 (Late 2015 MacBookPro 13in retina). Anyways once I am booted into windows (I'm using windows to use the egpu on the internal screen because this was meant as more of a mobile device) and I've checked the device manager to make sure the gtx960 is working properly (sometimes I get "no drivers are installed for this device and I have to reboot and try again) I try and run a game. I use WoW as a test for my graphics card. I have msi afterburner installed and I play WoW off an external HDD since I have the 128gb version of the MacBook pro. The graphics card fan never starts to spin. I monitor afterburner and at 50degrees celsius it still hasn't kicked on. I've only upped the graphics on WoW to about half 5/10 and after a few minutes of being on that setting the game crashes and I get a blue screen telling me there was a problem with windows. I'm at a loss and really upset since I've payed 400-500$ for this and it's not working and has given me a lot of trouble. There has to be someone out there who has this set up and dealt with this issue. I can't be the only one. I think the graphics card tends to crash around 60 degrees celsius and even using msi afterburner I've tried to increase the fan speed but even at 100% the fan just tilts a little bit when I look at it and never takes off. When the system first turns on though the fan seems to spin at 100% but after about 20 seconds the fan stops even though the graphics card is detected. So if anyone has dealt with this issue or knows how to overcome it please let me know. I shouldn't have to buy anything else to make this work since the guy in this video seems to have his set up working just fine. Thanks in advance everybody. Ps. Please help!
  8. Original Author: tranj10 After two weeks of fiddling around with my eGPU setup I have finally found a method that works well with my hardware. There are many suggested modifications on this forum (Evo*'s modified boot files, DSDT overrides*see note bottom of post, DIY eGPU setup), but it seems that these modifications are not necessary for the 2015 13" MBP. The setup includes easy plug-and-play hardware setup, fairly easy software setup (little bit of command line), and installation of Windows 8 on an external drive. Many users with 2015 MacBook Pros seem to have trouble booting up consistently with the eGPU on 2015 MacBooks, so hopefully the power up process I've found works on other MacBooks. Hardware: AKiTiO Thunder2 PCIe Box ASUS DC MINI NVIDIA GTX970 (fits in AKiTiO case without physical modification, but unable to close the case) Dell DA-2 AC Adapter Samsung T1 Portable SSD Cables: These cables from ebay are what make the hardware just plug and play Akitio Egpu 8 Pin to 2 x PCI E 6 Pin Super Low Profile No Latch 1 x Barrel | eBay Two PCI E 6 Pin to One PCI E 8 Pin 90 Degree Bend Right Low Profile USA Made | eBay Hardware installation: - Do not use the PSU that came with the AKiTiO enclosure - Really simple installation, just plug everything in (there aren't many cables and ports to figure out). Just make sure none of the 6-pin and 8-pin plugs are upside down, but it should be easy to tell. Note that for my software installation below, everything was done right after I reset the MBP to factory settings. eGPU and OS X: Goalque's automate-eGPU.sh script makes OS X very easy to setup for eGPU use. (http://forum.techinferno.com/mac-os-x-discussion/10289-script-automating-installation-egpu-os-x-inc-display-output.html) 1) Boot into OS X without eGPU connected 2) Download automate-eGPU.sh and then move it to desktop 3) Press command + space and type in terminal to open up a terminal instance 4) Run the following commands in the terminal - cd ~/Desktop - chmod +x ./automate-eGPU.sh - sudo ./automate-eGPU.sh 5) Go through the commands with "y" and then shut down 6) Go through the Power up process described below Bootable Windows 8 on external SSD: Follow this detailed guide (BleepToBleep: Mac: Install Windows 7 or 8 on an external USB3 or Thunderbolt drive without using bootcamp) - In step 3 part 1, enter the command 'cd C:\imagex' (or wherever you put the imagex.exe file) eGPU and Windows 8: 1) Boot into Windows 8 without eGPU connected 1a) Install Boot camp drivers if not done so already. 2) Perform Windows Update ignoring the suggested intel graphics update (not sure if ignoring intel graphics update is neccesary) 3) Download latest NVIDIA drivers 4) Power on eGPU and connect the thunderbolt cable to the MacBook 5) Check Control Panel > Administrative Tools > Device Manager > Display Adapters for a new display adapter entry 6) If nothing is there or you got a BSOD just restart MacBook and try again 7) Install NVIDIA drivers, selecting custom installation, and include all the options 8) Shut down 9) Go through Power up process described below I sometimes run into a Windows 8 boot up hang, but they don't seem to happen often so just power off and try again. Power up process: This is the power up process I always use to consistently have a successful boot without any black screen issues. 1) Have everything powered off 2) Connect thunderbolt cable to eGPU and MacBook 3) Power on the eGPU power supply (use a power strip with on/off switch) 4) Wait ~15 seconds 5) Power on the MacBook while holding option key 6a) Select the boot partition you want 6b) If you run into a blank black screen: - Force power off for MacBook - Power off eGPU power supply - Disconnect thunderbolt cable from MacBook - Power on the MacBook while holding option key - Boot into OS X, log in, and shut down - Go back to step 1 (there will be no black screen issues for at least the next boot up) - If you still are getting black screens after repeated tries then try a NVRAM clear (https://support.apple.com/en-us/HT204063) - Note that the NVRAM clear does mess with the changes implemneted by automate-eGPU. So you'll need to run 'sudo ~/Desktop/automate-eGPU.sh -skipdriver' to re-enable the changes - If the NVRAM clear doesn't help then try enabling -a mode with automate-eGPU by running 'sudo ~/Desktop/automate-eGPU.sh -a' Benchmarks: I have run 3DMark Fire Strike on the internal display and external display for the GTX 970 at stock manufacturer settings. - There is a 18% difference between internal and external display graphics performance - There is a 16% difference between external display eGPU and desktop GPU graphics performance - The external display eGPU (stock settings) performance is on par with the top overclocked desktop GTX 960s Here is a link to the comparisons: Results - They are ordered as: Desktop GTX 970 (stock) | Desktop GTX 960 (overclocked) | external display eGPU GTX 970 (stock) | internal display eGPU (stock) - The cpu is definately a bottle neck Thanks to @goalque for all his help in getting my setup for the 2015 MBP up and running! I would be interested in knowing if my power up process works for others out there, or if it's just a fluke. I am not sure if every step in the process is necessary (booting in OS X versus just waiting with everything off) edit: I went through this procedure a second time for a clean install, and it still works mostly fine. For some reason now only the thunderbolt port closest to the MagSafe port works for eGPU recognition in Windows 8. Both ports are usable for eGPU in OS X though. edit2: I am using the dsdt override as suggested here (http://forum.techinferno.com/diy-e-gpu-projects/7476-%5Bguide%5D-dsdt-override-fix-error-12-a-2.html). It doesn't seem to hurt or help, but I am just noting what I am using now.
  9. Hello tech inferno! This is my first post here. This seems the place to be for info on setting up eGPUs. I've done some research, and I'm pretty sure I'm willing to take the plunge down the eGPU rabbit hole. Here's my idea: Since I love the idea of having all my stuff on one sleek, organized computer, I would like to have a 15 inch macbook pro (2015) with an external 'docking station' of sorts that houses hard-drives, a disk drive, and extra ports (usb, ethernet, ect.), and of course, a powerful gpu. I would have two thunderbolt cables: one for the graphics and one for everything else. I would like the external docking station to be housed entirely within a cooler master elite 120 white that I have laying around. The thing is really good looking and seems to be the perfect size. I have attached some pictures of the case for reference. I would like to put the power supply, the graphics card, the hard drives, and the disk drives in their natural places in the case, and I would also really, really like the egpu to work in both windows and mac. It would be cool to have the ports on the case work, but this is in no way necessary. Questions: Will this work? What is possible and what is not? Will the macbook retina with the AMD Radeon R9 M370X be ok for egpu, or should I stick with the iris-only? Any help would be appriciated, as I am eager to learn, but a total noob on egpus. thanks so much, Hunter
  10. Ok so I do I lot of work on Rhino 3D, Sketchup and too Revit. I also use Maxwell and sometimes VRay for rendering. My current 15" Macbook pro with Iris pro graphics really sucks for this. When I move models around they get laggy and often freeze and crash. I do expect rendering to always take a while. Should I go with the Thunder2 and a GTX 970 with a PSU or would I be fine with the built in AMD R9 m370X of the higher priced macbook. The GTX kills it on benchmarks however the GTX requires a PSU and its hard to take around.... Thanks!
  11. Hi guys, i have one Macbook pro 13 Retina Late 2013 and he have broke EFI (BIOS) chip, i solder him out and make original dump back up via my mini programmer, all what i need good and clean EFI dump for my mac.Info about my system: Macbook pro 13 Retina Late 2013Model: A1502EMC: 2678Motherboard model: 820-3536-APlease help me to find that file, apple.com doesn't content anything like that, i don't need BIOS update file with .dmg extension,i need .bin with dump and of course without EFI lock.If people are interesting how to do that i can make post with photo and explanation how to open, disassemble, and chip programming.
  12. Hi, I've not posted on here since I built my eGPU for my 2015 MacBook Pro over a year ago. That unit was an Akitio Thunder2, RM 650W PSU, CoolerMaster 130 case, powered riser cable with a Zotac GTX 770 card. It's mainly used for playing Elite Dangerous on and it has been working perfectly. Recently I had the opportunity to upgrade the GTX 770 to a GTX 980 Reference card. It was pretty much a straight swap out except for the cards power connectors. On the GTX 770 these were 1 x 8-pin and 1 x 6-pin connectors. On the GTX 980 these are 2 x 6-pin connectors. Simple enough with my 650W PSU I just switched connectors. I am using the same powered riser cable for the PCIe connection. The unit boots up and works okay on Windows 10 via the display port connection. It will even play Elite Dangerous on Ultra settings and give a steady 60fps. So all good! Why am I posting here and asking for help??? Well, I noticed that when playing Elite Dangerous I could hear a high pitched electronic screaming noise coming from the unit. At first I thought it was the GTX 980 power coil as apparently they do sometimes do this. However on closer inspection the noise is coming from the Akitio board. It appears to be power related, so I tried to stress the card (and hopefully use more power) by using 3D Mark 11. Sure enough when running the benchmark tests the Akitio board makes a very high pitched electronic screaming noise. The noise stops when the tests stops. So it is caused by load on the graphics card and therefore I presume power, or lack of it. Do you think power is the problem here? If so, what should I do? I don't use the 2.5mm power adapter input on the Akitio board because my powered riser cable has a MOLEX adapter attached to it. Should I scrap the powered riser cable and get a non-powered version and then create a MOLEX to 2.5mm DC adapter plug for the Akitio power socket? Would that supply enough power for the GTX 980. The GTX 770 never had this problem, but I presume the GTX 980 draws a lot more power under load. I've attached some pictures below. Any help or advice you can give would be appreciated. Thanks, X6
  13. I am new here, and I plan to purchase an ultrabook(new 12' macbook) or convertible notebook(surface pro 3). I want to play the game fifa onine 3 without losing the mobility of notebook, so i try to research for the external gpu solution. unfortunately both 12' macbook and surface pro 3 does not have thunderbolt or expresscard or mini pci-e connector. What I want to know is that is there any possibility for the usb type-c or usb 3.0 to implement egpu solution?
  14. Hi people! I just wanted to share my gGPU setup with you and talk about the benefits and problems. I bought the Akitio along with a passive Palit GTX 750 TI because I didn't want my gGPU to make any noise nor to need any extra power supply. The Maxwell GTX 750 ti does all that since it only draws 60W and like this, I just needed to apply the guide (here) to pass up to 75 W through the PCIe port so that I could make the most compact setup possible (with a passive GPU). I even got to make it work under OS X and Windows stable, although on Windows I didn't activate optimus with the internal screen of my 13" rMBPr Late 2013. The setup works very stable in idle and whenever I really push it hard, I just put a little 6cm NB-Fan in Front of the GPU which it cools down to less than 60 degrees on 100 % load without any noise. My only problem now is, that there shouldn't be any noise, but yesterday the Akitio and its PSU startet to make a buzzing noise at full load which I am not sure if it is coming from the coils of the PSU or the Enclosure itself. Anyway my main problem is now that I then found that the Akitio makes a subtle but perceivable very high frequent noise as soon as the PSU is plugged (Akitio not activated) Now my question is, could someone who ownes a Akitio check, if you can hear this noise on any Akitio or if it is just mine that has a problem. Thank you very much in advance! Regards, salut