lontonsaivat

Hi guys,

I'm looking for a small PSU ( and cheap if possible ) for my GTX650. I intend to make a portable version for my eGPU, my current PSU is too big. Thanks alot? or any guide?

Thanks alot.

Cheers.

I did all the setup and everything is running well till now, plug and play. Is there anyway i can check that my eGPU is using 1.2Opt?

I'm doing some benchmark with 3dmark11 and will update soon.

Thansk!

15" MBP/MBPr has the issue with the dGPU, rather than the iGPU, being the primary bootup video device. That means the NVidia Optimus features like rendering the image to the internal LCD won't work. Those features only engage if the iGPU is the primary bootup video device. How to do that is something you'd probably need to investigate in the Apple forums. I hope it doesn't require placing a kill switch on the GT650M (dGPU) chip itself.

GTX650 is fine too. You want a system with a Intel HD iGPU as the primary bootup video device, then you need a Fermi (GTX460/GTX560Ti, etc) or Keplar (GTX650, GTX660, etc) NVidia eGPU, and a PE4L-EC060A 2.1b or PE4L-PM060A 2.1b. That combination will get you x1.2Opt performance.

Hi nando,

Just one more silly question: do I need to do anything special to enable Optimus compression for my Nvidia card?

Thanks a lot!

Refer to First Steps -> 2. Which video card do you recommend for best performance on my system?, Pre-purchase FAQ -> 5. (Performance) What affects the performance of a eGPU? and Pre-purchase FAQ -> 13. What do I need to run the fastest x1.2Opt link shown in the implementations?

Short answer: your system is x1.2Opt capable. Just get a NVidia GTX460-336, GTX560Ti or GTX660 to gain x1.2Opt performance. x1.2Opt is your x1 2.0 link but the driver and card uses pci-e compression to accelerate performance anywhere from 20%-333%.

Can I use a GTX650 instead ? Or only those that you refer to can work with x1.2Opt ?

Thank you nando !

Hi guys,

I just have a PE4L shipped from Taiwan, and start install the eGPU with these stuff: ATI 5570 & PSU ACBel 430W. After everything is set, I turn on my X220,boot into windows, and turn on the power for the eGPU, plug it into the x220. Windows 8 detect the new vga adapter correctly.

After install the latest driver for the eGPU, look like it's working now, but the bandwidth is only PCIE [email protected]. Is there anyway that I can improve it ?

Thanks alot.

hi all

can anybody here tell me i should use original nvidia desktop driver or modded nvidia mobile driver?

You use the modded driver only when you need to use the interal LCD.

You can take a look at this post: DIY eGPU experiences - Page 403

Thanks so much Tech Inferno Fan. My laptop is a x220 with i5-2410M so I think it's a Sandy Bridge system. I can understand the PE4L part but I don't really understand the TOLUD part. What should I do with my x220 when install a eGPU? Just let it changes TOLUD by itself or do I need to install/edit something? Can I use 8G RAM?

Thank you!

Hi guys,

Please help to take alook at my TOLUD :

Can I use more than 4G RAM?

And if i want to use my ATI 6770 with eGPU, should I buy PE4L or PE4H?

Thanks and sorry for my bad English

switchable graphics technology

nvidia - optimus

ati - enduro

the conclusion is u cant do 1.2Opt

correct me if im wrong

Okay.... So I'll have to change my spare card to nvidia to use that Optimus. Thanks

_{If your X220 is a Sandy Bridge or Ivy Bridge version, which means it support PCI 2.0, go for the PE4L version !}

_{With the PE4L a X1.2 opt setup is just as powerful as the PE4H X4 setup.}

Hi guys !

I'm so excited my new eGPU setup is now finally working !

You may have read my message before and I was wrong none of my GPU was dead, but the PE4L was no longer working. I still don't know why it didn't work, I notice a wire, on the PE4L had been torn out but I've re soldered it and it didn't make any change. I've investigated the PM3N of the PE4L and when I've removed the sleeve it torn at least 3 wires and I could resolder one of them. So I've order a new PE4L which was a bit reworked compared to my first PE4L 2.1b. There is a new jump somewhere on the PM3N and it is no longer necessary to make the jump ourself.

So here is my setup

- Sony SV-Z1311C5E 8Gb i7 3612QM @ always running at 2.8 Ghz.

- PE4L-PM060A 2.1b

- XBOX 360 PSU mod

- ZOTAC GTX 660 Ti AMP! 2Gb

And Windows 8 64 bit !

I'd be glad to do some benchmarks but 3DMark 06 keep make the computer freezing.... I've googled it and it seems to be related to futuremark system analyser... So other 3DMark might be affected too.

I couldn't try it much, I've made it working few minutes ago and could just try borderlands 2 on internal LCD. Which work just as expected .

I'll keep you updated with pictures and benchmarks !

Thanks MikjoA for your advice. But does 1.2Opt work with ATI card ?

Thanks.

HI guys,

First of all, thanks for the great thread.

I'm living in Vietnam, and it's very hard for me to reach the seller, so I only had one chance to order the adapter ( because it could cost me a lot). Could you guys please help me with the following information?

I'm using a X220 and having a spare ATI 6770 + PSU 350W. So which version should I buy ? PE4L or PE4H? And do I need to install or make any changes of my laptop to make it run at the best as it could?

Thanks a lot for your attention and help.