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Check your lcd frequency. We've seen others note a fps cap of 60 which is consistent with a 60hz lcd. 48 would imply your lcd has a 48hz refresh rate.

An up-to-date list is being maintained on TechInferno: https://www.techinferno.com/index.php?/forums/topic/3108-egpu-candidate-system-list/#6th

Can try 'automate-egpu.sh -a' :

Pls follow this guide to fix your boot issue.

Unfortunately, your system doesn't have a x2 capable port layout. Though even if it did, unlocking x2 capability would require a not-for-the-feint hearted bios mod. Intel locking that down as of the 2nd gen icore chipsets. My suggestion is if you require more than x1 2.0 bandwidth then acquire a Thunderbolt equipped notebook and egpu enclosure.

Yes. Ruining mobile and desktop drivers simultaneously has led to error 43. Revert to just the desktop driver. Pci.bat needs to be edited as explained at the following amongst most MBR egpu implementations for your system. Did you not see and therefore not do this important step?

There are several MBR example implementations for your system at . Notice that hand editing the pci.bat output from Setup 1.20 PCI compaction is needed. Did you so that ? Pls advise once applied these best practices what the state of your egpu implementation is.

Pls work through the previously linked to bypass bios detection if the egpu so the igpu gets activated.

Pls review To get the accelerated internal LCD mode working you must: 1. Have the igpu as the primary bootup video device. 2. Have dgpu completely disabled, eg; via Setup 1.30 or bios. 3. Have latest NVIDIA desktop video driver for win10.

Pls proceed to uninstall ALL your NVidia drivers, use "DDU" to clean NVidia registry entries and do a 'clean' install of the latest NVidia desktop driver. This will ensure you have latest desktop driver installed correctly.

Pls confirm in device manager that the igpu is running, dgpu doesn't appear and egpu is running without errors. Only then can Optimus activate to give the accelerated internal LCD mode and x1 pcie compression.

Which windows are u using? If win10 then test win8.1 instead as it has working Optimus.

Within Setup 1.30 use the Video cards -> dgpu [off] function. That will then see the NVIDIA driver switch on optimus accelerated internal LCD as well as x1 pcie compression to greatly accelerate 3dmark06 results. That is with win7 or win8.1. Win10 appears to have broken NVIDIA optimus functionality:

Yes, the error against the device is the reason your dGPU isn't appearing. It may be that your BIOS isn't correctly allocating the resources to the dGPU upon bootup when it sees the eGPU. The workaround there is to use the delay switches on the PE4C V3.0 to hide the eGPU from the BIOS during bootup. I'll add too that most users prefer to disable the dGPU which your system current is doing. That's because with just the iGPU+eGPU, NVIdia drivers will enable internal LCD acceleration by the eGPU plus x1 pci-e compression. The only scenario where enabling the dGPU would be useful is where you have a NVIdia dGPU+eGPU and wanted to use one for say game rendering and one for Physx effects.

Opinions on eGPU for M17xR2 already at https://www.techinferno.com/index.php?/forums/topic/2521-q-egpu-for-m14x-r2-or-m17x-r2/

Thunderbolt1 can work with the card. Just be aware that the AKiTiO Thunder2 has stability problems with AMD R9 series cards with goalque resolving it by using a significantly more expensive Netstor enclosure as detailed in this thread. @goalque noted that HD series cards are OK: https://www.techinferno.com/index.php?/forums/topic/6745-2014-15”-macbook-pro-2x-r9_280x16gbps-tb2-netstor-na211tb-win81osx-goalque/&do=findComment&comment=126086 You might consider getting a HD7970 instead of an R9 280X.

KFA2 GTX960 OC is too tall for the AKiTIO enclosure to close over it. Look for a card under 112mm tall. Otherwise can use the KFA2 GTX960 OC but with the AKiTiO outer shell removed.

Pls work through https://www.techinferno.com/index.php?/forums/topic/8947-mpcieec-egpu-troubleshooting-steps/

@timohour is the only one who's managed to do a x2 2.0 eGPU implementation on a 2nd gen i-core or newer notebook. Details of how the flash descriptor was unlocked and the BIOS straps for the PCIe port set to x2 are at https://www.techinferno.com/index.php?/forums/topic/7574-14-dell-latitude-e6430-performance-upgrades-and-system-mods/#comment-115469

You can certainly try. Theoretically, a decent workaround to the problem.

All the USB ports are hosted off the Intel Southbridge chip (QM77). The same chip also hosts the x1 PCIe ports used by the wifi card, expresscard slot, card reader. It makes sense that a power spike off the USB line could affect the PCIe line.

We had another user report this. Turns out to be large swings in the output voltage of the USB port. Therefore it's not recommended to use the EXP GDC's USB port because of the potential damage it may cause your USB device(s). If you really require the external USB port function on the eGPU adapter then suggest getting a PE4C V3.0 instead. It's a better build device.

There's a google cache version from Jan-17: https://webcache.googleusercontent.com/search?q=cache:ET1afh9psm4J:https://www.techinferno.com/index.php%3F/forums/topic/7832-the-basic-egpu-hardware-guide-for-macs/+&cd=1&hl=en&ct=clnk&gl=au Wonder what happened to it since then? @Brian, can you pls restore Dschijn's thread? Saved in the spoiler in case the cache disappears.

Put the eGPU under load and then observe if the Bus Interface field in GPU-Z changed from x1 1.1 to x1 2.0. If yes, then your port already runs at Gen2 speed and just reverts to Gen1 for power management. If not, then use Setup 1.30 to change your eGPU port to Gen2 speed.

MSI Gaming GTX970 G1 Gigabyte GTX770