- Download official drivers for integrated/mobility GPU from AMD/ATI website.
- Go to Packages\Drivers\Display\W76A_INF, open the C7xxxxxx.INF file & look for your device, for example:-
Attachment 5425 Attachment 5426
- Copy both lines & paste them in desktop drivers (C7xxxxxx.INF) in Packages\Drivers\Display\W76A_INF directory:-
Attachment 5427 Attachment 5428
Note: If AMDxxxx.X is already exist, increment it. E.g. AMD9553.1 already exist, change the new entry to AMD9553.2, if AMD9553.2 already exist, change the new entry to AMD9553.3, and so on.
- Install the desktop driver.
For successful installation, you'll need to disable driver signature (F8 -> Disable Driver Signature Enforcement).
There is another trick to install both mobility & desktop drivers. What I did is install driver for integrated/mobility in Device Manager & for desktop driver, use the installer.
309 is working fine, i think the 305 update was just a bit glitchy. Also I think even the desktop version supports optimus now...(the nividia tray icon is just automatically switched off with the newer drivers, can be switched on under the nvidia options though)
Bootcamp win7 on a rMBP13 auto-installed the TH05 adapter driver as long as no PCIe card was installed. Blank screen if I try to boot win7 with any card in the slot. Nvidia doesn't allow install unless it detects its own gpu plugged in.
I cannot install windows 8 because the game I play does not launch in windows 8.
Is there a way to force the nvidia driver install in win7? My hope is the only workarounds would be rEFInd menuentries that disable the iGPU and enable the eGPU. Once the pci address is known, I can use mm to do that, yes? Please let me know if this definitely won't work.
here. The latter is what occurs when you bootcamp a Mac. You can see it's trickier to get the NVidia eGPU detected and requires pci-e fixups in a preboot environment (eg: setpci in Setup 1.1x or mm in rEFInd). UEFI mode gives a plug-and-play implementation in Win8.
I am thinking about buying Thinkpad W530 (need 32 GB of RAM) and going the eGPU route. If I understand correctly, I would have to use setup 1.x every time I restart the computer in order to enjoy the benefits of eGPU because W530 has switchable graphics. In addition, hot swapping also won't work (for the same reason). Could someone please tell whether my understanding is correct or not?
P.S. I heard that it is possible to disable the dGPU in the W530 bios. If that's true, than would I still need to run setup 1.x?
If are OK with just x1 2.0 performance and don't care for internal LCD mode, then can bootup without using Setup 1.1x. For the latter case you may even want to get a AMD eGPU which does give slightly better performance. REF: i5-3320M + GTX660/HD7870. Now if LucidLogix Virtu worked on Series-7 mobile systems I'd be suggesting go for an AMD eGPU + Virtu.
If wanting to avoid using Setup 1.1x but still use a NVidia eGPU at x1.2Opt then consider a notebook that has a iGPU only, eg: Lenovo T430/T530, HP 8470P/8570P or 6470b/6570b, Dell Latitude E6430/E6530 or Vostro 3460/3560. They tend to be cheaper than the workstation class systems like the W530 or Dell M4700. Do note that there has been reports of Lenovo notebooks having very poor eGPU performance when equipped with 16GB of RAM where reducing it to 8GB solves the issue. You could even consider a Thunderbolt-equipped notebook if wanting faster eGPU performance: a Macbook or certain Lenovo T430s/S430 systems.
Thank you for such a thorough reply. I would prefer to have the features provided by x1.2Opt. Also, thank you for the notebook suggestions, but it doesn't seem like any of those models support more than 16 GB of RAM.
It looks like it is possible to disable dGPU in W520 according to this W520 bios emulator:
Do you think it would do the trick? I saw a couple of W520 owners' forum postings saying that they had to use setup 1.1x, but that was in 2011 and before Lenovo released the bios fix for the tolud issue.
I'm putting together a build for my Lenovo X220t as follows:
GTS450 1GB DDR3 - Despite what it says here and to my surprise this card does not have any supplementary 6-pin connections.
BPLUS TECH - PE4L-EC060A v2.1b
120W CE approved AC Adapter Power Supply
I've got a few questions:
- Do I simply plug the DC plug into the DC socket on the PE4L? I saw some older threads that talked about jumpers and having to use extra USB power but these seem rather outdated.
- The socket in the PE4L has no information, is it a 5.5mmx2.5mm like the power supply I am buying?
- The laptop is currently running windows 8, as far as I can tell there are now NVIDIA Optimus drivers for Win 8, but will this be a problem?
To sum up, this is my understanding of what I need to do once everything has arrived.
Install latest NVIDIA drivers.
Plug GTS450 into PE4L.
Plug DC PSU into DC socket on PE4L. (Hopefully it fits)
Plug DC PSU into wall socket.
Plug expresscard into laptop slot.
Let me know if I've gotten anything horribly wrong.