hydrocell Posted June 28, 2015 Share Posted June 28, 2015 Hi, My first take on using an EGPU. Just wanted to play witcher 3 so bad. My laptop: - Lenovo Y410P - i7 4700MQ 2.4Ghz - 8GB RAM - Geforce GT 750M dGPU, HD4600 iGPU - Windows 8.1 My eGPU: - Geforce GTX 970 Asus turbo - PE4C v2.1a - Antec 450W PSU Configuration: Just flashed my bios with the modded 3.05 version by svl7 to remove whitelisting. Here are the steps I have taken: - Dont plug the PE4C to your laptop yet - Boot windows - Disable the dGPU (GT750M in my case) - Uninstal the drivers - Go to BIOS, set video config to use iGPU only - Shutdown, plug in the PE4C and then boot windows - Once windows is booted, install the nvidia drivers - Reboot - Enjoy your new EGPU Here are some pics of my laptop Im still waiting for the pcie extenders so i can clean up the case (see cables sticking out) Pics from windows Benchmarks heres my result using internal display 4 Quote Link to comment Share on other sites More sharing options...
Duck Posted June 28, 2015 Share Posted June 28, 2015 Thanks for the post! Can't wait for the pics! Quote Link to comment Share on other sites More sharing options...
snekiam Posted June 28, 2015 Share Posted June 28, 2015 Did you get the internal LCD to display images rendered from your external card? If so, was there a performance loss? Also, did you unplug the wifi card for the pci-e slot? Thinking of doing this with my y510p. Quote Link to comment Share on other sites More sharing options...
hydrocell Posted June 28, 2015 Author Share Posted June 28, 2015 Did you get the internal LCD to display images rendered from your external card? If so, was there a performance loss? Also, did you unplug the wifi card for the pci-e slot? Thinking of doing this with my y510p.yes I did get the internal LCD working. It just worked by default. didn't do anything. Going to benchmark today but I think there is a performance loss. Yes had to unplug the wifi card. 1 Quote Link to comment Share on other sites More sharing options...
snekiam Posted June 29, 2015 Share Posted June 29, 2015 yes I did get the internal LCD working. It just worked by default. didn't do anything. Going to benchmark today but I think there is a performance loss. Yes had to unplug the wifi card.Awesome looking forward to benchmarks and pictures! Quote Link to comment Share on other sites More sharing options...
snekiam Posted July 3, 2015 Share Posted July 3, 2015 Did you ever benchmark this thing? Curious to see how much of a performance loss there was. Also curious about your routing of the cable from the wifi card slot. Quote Link to comment Share on other sites More sharing options...
hydrocell Posted July 4, 2015 Author Share Posted July 4, 2015 Yeah i am starting to benchmark today. Got busy at work. Updated thread with some picsSent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
loki Posted July 5, 2015 Share Posted July 5, 2015 :Banane47:only 'bout 15% performance drop(compared to external display) when using internal display.now 'm thinkin' 'bout doing egpu on my y400. Quote Link to comment Share on other sites More sharing options...
hydrocell Posted July 5, 2015 Author Share Posted July 5, 2015 :Banane47:only 'bout 15% performance drop(compared to external display) when using internal display.now 'm thinkin' 'bout doing egpu on my y400. yeah its awesome do it. I don't even bother using my external display. Playing witcher 3 from the internal display without problems so far Quote Link to comment Share on other sites More sharing options...
snekiam Posted July 10, 2015 Share Posted July 10, 2015 Followed your steps, but laptop appears to only use internal intel card now. Is there something I am missing? Y510p user here. Quote Link to comment Share on other sites More sharing options...
hydrocell Posted July 12, 2015 Author Share Posted July 12, 2015 Followed your steps, but laptop appears to only use internal intel card now. Is there something I am missing? Y510p user here.did you check device manager if it detected your egpu card? before installing the nvidia driver Quote Link to comment Share on other sites More sharing options...
ssss.sahoo68 Posted July 12, 2015 Share Posted July 12, 2015 Does ur laptop have x2 portSent from my XT1033 using Tapatalk Quote Link to comment Share on other sites More sharing options...
hydrocell Posted July 12, 2015 Author Share Posted July 12, 2015 @ssss.sahoo68 you mean gen 2 port? YesSent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
ssss.sahoo68 Posted July 13, 2015 Share Posted July 13, 2015 OK,man could you tell if my xps l502 x also has gen 2 port?Sent from my XT1033 using Tapatalk Quote Link to comment Share on other sites More sharing options...
snekiam Posted July 13, 2015 Share Posted July 13, 2015 Got it working, had to mess with drivers some. Not getting full performance it seems though. 6874 in 3dmark on internal display, no external to test it with. Is there a way to see what speed my pci port is operating at? Did you do any overclocking anywhere? Quote Link to comment Share on other sites More sharing options...
ssss.sahoo68 Posted July 14, 2015 Share Posted July 14, 2015 Ur using pci Mini port for egpu,aren't u?Sent from my XT1033 using Tapatalk Quote Link to comment Share on other sites More sharing options...
hydrocell Posted July 15, 2015 Author Share Posted July 15, 2015 @snekiam- no overclocking done. You can check bus speed from gpuz @ssss.sahoo68- yes via mpcie portSent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
akirah Posted July 17, 2015 Share Posted July 17, 2015 Switched to UMA only in BIOS, still can see GT750 in device manager. Disabled 'special features' in video configuration, this completely disabled integrated intel so I can't use Optimus (and monitor works only connected directly to GTX970). So, how exactly do you disable discrete graphics on this laptop. I have a pretty much the same configuration with PNY GTX970. Quote Link to comment Share on other sites More sharing options...
snekiam Posted July 18, 2015 Share Posted July 18, 2015 Do you have an SLI model? Remove the 2nd GT750m if so. Quote Link to comment Share on other sites More sharing options...
akirah Posted July 19, 2015 Share Posted July 19, 2015 It wasn't SLI, just some BIOS option I didn't switched properly. I tried again and I've managed to disable only internal nvidia keeping intel working. Interesting results though with 3DMARK Fire StormWith *only* GTX970 working on external monitor connected to GTX970: Score: 7602 / Graphics Score: 9736 / Physics Score: 6210 / Combined Score: 3295With iGPU and GTX970, external monitor connected to laptop HDMI: Score: 6633 / Graphics Score: 7321 / Physics Score: 6921 / Combined Score: 3755With iGPU and GTX970, external monitor connected to GTX970 HDMI: Score: 7781 / Graphics Score: 9542 / Physics Score: 6850 / Combined Score: 3570 Quote Link to comment Share on other sites More sharing options...
snekiam Posted July 19, 2015 Share Posted July 19, 2015 Mine was working, then I clean installed the bios and os (long story) and now it doesn't work correctly. My internal dGPU still shows up in device manager, along with the 970. I cannot open NVidia Control Panel, it simply states I have no displays connected. Could one of you post your exact bios settings that got yours to work, I have been fiddling for hours and cannot for the life of me get it working again. Quote Link to comment Share on other sites More sharing options...
akirah Posted July 20, 2015 Share Posted July 20, 2015 Configuration->Graphics Device->UMA OnlyVideo Features->Pci Express Graphic->Always Enable PEG: DisabledI think that's it. 1 Quote Link to comment Share on other sites More sharing options...
snekiam Posted July 23, 2015 Share Posted July 23, 2015 Do you guys see a huge performance drop in GTA V? On my external monitor I get like 80-100 fps, internal I get less than 30. Quote Link to comment Share on other sites More sharing options...
snekiam Posted July 24, 2015 Share Posted July 24, 2015 Did some more testing / benchmarking. On external screen, I get 8552 on 3dmark. On my internal screen, I get 6950, with the graphics score being significantly lower (~3000 points). I feel like the optimus compression is not working correctly, as my performance drop is ~20% on my internal lcd compared to ~10% on op's internal screen. Is there anything I am doing incorrectly here? Quote Link to comment Share on other sites More sharing options...
EgT Posted July 28, 2015 Share Posted July 28, 2015 I have question: do I loss portability when doing this? For example: I will be playing at home with the egpu, but then I want to play somewhere else with 750m sli, what should I do? Quote Link to comment Share on other sites More sharing options...
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