Torsten

@Dschijn Sorry for this rather stupid question, but why would one limit the GHz or the voltage? Wouldn't that lower the cpu performance?

Hey, I'm also using a GTX GeForce GT 980ti in combination with a MacBook Pro Mid 2014 and a Akitio Thunder2. I'm getting a Score of 1934 in Unigine Heaven (complete result attached), but I've no reference. Is this all I can get with my setup? Thanks in advance

Hey there, I've some trouble getting my setup to boot properly. Sometimes it takes 5 or more attempts for the Mac to boot... most of the time it shows just a black screen with no booting sound. When the booting succeeds, the system runs stable. My setup: MacBook Pro (mid 2014) with dedicated graphics, sonnet Echo Express SEL, EVGA Geforce 980ti, corsair rm450. Would a powered raiser make the system more stable or what could be the reason? thanks in advance.

Hello, Currently I'm using a Sonnet Echo Express SEL (connected to a MacBook with thunderbolt 2) and I'm wondering if there are any differences between this adapter and the AKiTiO Thunder2. would switching the adapter increase performance or stability? thanks in advance

Hi there, My current setup is a MacBook Pro Mid 2014 (2,8 GHz i7, 16 GB Ram) and a EVGA GeForce GTX 970 connect with a Sonnet SEL (4x -> 16x riser). With VR just around the corner and a already preordered Rift, I'm thinking about upgrade the eGPU part of my system. I don't now if the system would benefit from a better graphics card (e.g. a 980 ti) or if the thunderbolt adapter would bottleneck it. What do you guys think? Would a 980ti make sense? Thanks in advance

I've a 2014 MacBook pro with dGPU and as I sad, I had it working until I tried to boot into OS X. I even have a valley score, so this should invalidate the assumption that apple stops maxwell cards. Ive a gtx 970 sc btw. update: there is a firmware update for the gtx 970 but I'm unable to flash the card. Is it possible for you to flash it in an other pc and try again? update #2: after reading the firmware description, it will make no difference at all. it only brings a total spin down for the fans. After a lot of restarts I can now say that my system will boot up about 20% of the time.... this setup with an gtx 760 booted 100% of the time (but was unstable due to the power consumption)

Hey, I've the same problem but with my sonnet SEL and the EVGA 970! It won't boot to the start screen with my eGPU connected. when I boot into bootcamp without eGPU and remove the nvidia drivers, the system boots up just fine. When I then reinstall the drivers with my eGPU connected, I see the screen on my external display as expected. But after the next reboot everything stays black again. one thing I like to add: i had it running until I tried to boot into OS X with my eGPU connected. After that it's all black.

Hey there, just a thought: Would it be possible to use the eGPU exclusively inside a VM? Would be great to be able to start a Parallels VM which has access to a full GPU while the surrounding OS X use the build in GPU. What do you think? Any way to make this happen?

Hey, I've bought the Sonnet SEL and I'm running into the exact same problem as Mark did. I've a non powered 8x -> 16x riser, a 450W PSU and a EVGA GeForce 760. So how should I proceed? ... and bying a III-D instead is not in my budget ;-) Thanks in advance

This is error message causing the freeze in OSX... maybe anyone can read this ;-) Anonymous UUID: 1F174B48-34BC-3604-AB93-FF09CFC882C7 Fri Jul 11 23:45:51 2014 panic(cpu 1 caller 0xffffff80080dc24e): Kernel trap at 0xffffff7f88ed7634, type 0=divide error, registers: CR0: 0x000000008001003b, CR2: 0xffffff81f59e8e04, CR3: 0x000000000ac26000, CR4: 0x00000000001606e0 RAX: 0x0000000000007e90, RBX: 0x0000000000000000, RCX: 0x0000000000000000, RDX: 0x0000000000000000 RSP: 0xffffff81f98cb518, RBP: 0xffffff81f98cb520, RSI: 0x0000000000000000, RDI: 0x0000000000000000 R8: 0xffffff81f98cb5a0, R9: 0x0000000000007e90, R10: 0x0000000000000000, R11: 0xffffff81f98cb807 R12: 0x0000000000003f48, R13: 0xffffff81f98cb5f8, R14: 0x0000000000000000, R15: 0xffffff81a9bfe001 RFL: 0x0000000000010246, RIP: 0xffffff7f88ed7634, CS: 0x0000000000000008, SS: 0x0000000000000010 Fault CR2: 0xffffff81f59e8e04, Error code: 0x0000000000000000, Fault CPU: 0x1 Backtrace (CPU 1), Frame : Return Address 0xffffff81f98cb1a0 : 0xffffff8008022f79 0xffffff81f98cb220 : 0xffffff80080dc24e 0xffffff81f98cb3f0 : 0xffffff80080f3746 0xffffff81f98cb410 : 0xffffff7f88ed7634 0xffffff81f98cb520 : 0xffffff7f88ed5a33 0xffffff81f98cb5d0 : 0xffffff7f88ed974e 0xffffff81f98cb660 : 0xffffff7f88ed9371 0xffffff81f98cb710 : 0xffffff7f88c9d8fa 0xffffff81f98cb830 : 0xffffff7f88eda6f2 0xffffff81f98cb990 : 0xffffff7f88edaa2a 0xffffff81f98cba10 : 0xffffff7f88d878be 0xffffff81f98cbbe0 : 0xffffff7f88d965c8 0xffffff81f98cbc40 : 0xffffff7f88f8b74c 0xffffff81f98cbca0 : 0xffffff7f88dba7ea 0xffffff81f98cbd00 : 0xffffff7f88dbae35 0xffffff81f98cbd70 : 0xffffff7f88f99bc7 0xffffff81f98cbdb0 : 0xffffff7f88f84aaf 0xffffff81f98cbe20 : 0xffffff7f88d72a81 0xffffff81f98cbe40 : 0xffffff7f88c8c75d 0xffffff81f98cbef0 : 0xffffff80084b07f0 0xffffff81f98cbf30 : 0xffffff80084af292 0xffffff81f98cbf80 : 0xffffff80084af367 0xffffff81f98cbfb0 : 0xffffff80080d7417 Kernel Extensions in backtrace: com.apple.nvidia.driver.NVDAResman(8.2.6)[6DAE3128-DB93-3F93-858C-F46ADE1368A2]@0xffffff7f88c35000->0xffffff7f88ea8fff dependency: com.apple.iokit.IOPCIFamily(2.9)[4662B11D-2ECA-315D-875C-618C97CDAB2A]@0xffffff7f886be000 dependency: com.apple.iokit.IONDRVSupport(2.4.1)[D41125CE-69BD-32E7-9B1D-4E83431662DD]@0xffffff7f88c1f000 dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)[75D81741-64C1-3941-ADFA-9D6B6C434EE4]@0xffffff7f88bdc000 dependency: com.apple.AppleGraphicsDeviceControl(3.6.22)[91D61DEC-2946-3790-8134-B808C016C4C9]@0xffffff7f88c2f000 com.apple.nvidia.driver.NVDAGK100Hal(8.2.6)[EF73AF59-A574-3A5A-B410-7E4F2DA819B0]@0xffffff7f88eb4000->0xffffff7f89060fff dependency: com.apple.nvidia.driver.NVDAResman(8.2.6)[6DAE3128-DB93-3F93-858C-F46ADE1368A2]@0xffffff7f88c35000 dependency: com.apple.iokit.IOPCIFamily(2.9)[4662B11D-2ECA-315D-875C-618C97CDAB2A]@0xffffff7f886be000 BSD process name corresponding to current thread: kernel_task

Has anyone managed to get audio via display port / hdmi to the monitor? It's not listed in the audio output list.

Thanks for the info! I'll wait for the flexible riser and if this won't help, I'll "give up" and buy a TB2 capable MacBook ;-)

Yes did that immediately. Bought a "real" apple thunderbolt cable but it didn't make any difference. To make the 16x PCIe GPU fit in the 8x PCIe slot of the Sonnet SEL, I had to use 2(!) risers. A right angled 8x -> 8x and a non-flexible 8x -> 16x one. Might that be a problem? I've ordered a flexible 8x -> 16x riser but the delivery might take 1-2 weeks from China.

well the system freezes both in osx and windows after a random time even when idle... so I can rule out overheating and also insufficient power. Now I'm lost.

Hey squinks, I've a question to your nice hardware setup: Is the RM450 really enough for the EVGA GTX 780ti? I've an EVGA GTX 760 and the manual says it needs a 500W PSU. Currently I'm running into some problems (freezing) that may be due to the insufficient power supply. I'm using the Sonnet SEL.