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2012 15" Lenovo Thinkpad E531 (GT740M) [2nd,4C,Q] + GTX 1060 @ 4Gbps-mPCIe2 (PCE...
 

2012 15" Lenovo Thinkpad E531 (GT740M) [2nd,4C,Q] + GTX 1060 @ 4Gbps-mPCIe2 (PCE164P-N03) + Win10 [inxftw]  

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inxftw
(@inxftw)
Eminent Member
Joined: 2 years ago
 

Laptop specs

 

  • 2012 15" Lenovo Thinkpad Edge E531, SKU: 68852E1
  • Intel Core  i3-3110m 2.4Ghz 2c/4t   i7 2670qm 2.2-3.1Ghz 4c/8t
  • 8GB DDR3 1600
  • GT740M 64-bit bus dGPU / Intel HD4000 HD3000 iGPU  
  • 1366*768 TN panel
  • 128GB SSD, 2x 1TB HDD
  • Windows 10 Home

 

eGPU hardware

 

 

Hardware pics 

mPCIe to USB Bottom panel Round cable

Laptop 3

Laptop 1

Laptop 2

*Notes: I will say that round cable doesn't interfere with rigidity of laptop while it's on the laptop stand, I also use usb keyboard.

 

Cable length

cable1

cable2

cable3

*Notes: Nando4 asked is the 40cm cable too short?  If you plan to put your eGPU parallel to laptop's monitor then it's fine.

 

PSU Infinite Jumper (GREEN+BLACK=ON) Graphics card hooked up

PSUjpg

paperclip trick

eGPU adapter

 

Installation 

 

TIP: If you are missing settings consider using Nvidia Inspector. As it allows you to set Fast Sync, Supersampling (other than Gaussian forced by novideo in control panel) and other goodies.

 

Resolving error 12

Why haven't I done this before? Lets get right into the good stuff. My laptop is a Lenovo Thinkpad Edge which are known to have BIOS white list of WLAN modules. Not an issue since laptop has hot plug enabled. After hot plugging graphics card I encountered infamous error 12: This device cannot find enough resources that it can use.

Tried following nando's error 12 DSDT override guide without any success until I found this app:

After trial and error(thanks @tauio111)  I did to get large memory working with eGPU. My resultant DSDT override package here:
https://egpu.io/nando4-shared/DSDT_overrides/Lenovo_Thinkpad_Edge_E531_GT740M-inxftw_supplied.zip

How was this generated? In BIOS, disable dGPU, log into windows with eGPU powered off. Open DSDTEditor, File>Extract DSDT, which resulted in a good DSDT dump, finally. After inspecting it I found that it's actually Intel type dump. Coming back to error 12 guide I found needed QWORD, added it to the dump. Compiling had minor errors. But those(unlike errors I was getting with previous dumps) can be easily fixed with widely available DSDT research.

 

Dealing with error 43

The piece of hardware in question is Gigabyte GTX1060 3GB , as we all know latest drivers won't work on pascal cards resulting in error 43 upon installation. After getting 372.70 drivers installed I was relieved that it worked.  Latest drivers update:  My fix to resolve error 43 for cards released after July 2016 is here.

CPU Upgrade: 

Since my laptop has HM77 chipset which supports i7 sandy bridge cpus I thought why not upgrade it since it's only ~$65 on ali.

i3 3110m i7 2670qm

While idling it's actually cooler than i3, during load it's roughly 12°C hotter. I used Z5 thermal compound.

Cinebench R15

i3 i7

Graphics card benchmarks 

 

AIDA64 GPGPU

Gigabyte GTX1060 3GB eGPU @x1 2.0 (mPCIe2) HD4000 / GT740M dGPU @x8 2.0

 

CUDA-Z

Gigabyte GTX1060 3GB eGPU @x1 2.0 (mPCIe2) GT740M dGPU @x8 2.0

 

Unigine Heaven 4.0 3dmark Firestrike

 

Not mine, for comparison purposes

i5-6500 + MSI GTX1060 3GB 1974MHZ

 

Comments

 

  • Was pleasantly surprised at performance of GTX1060 with my laptop. Honestly this is the best hardware ghetto hack I've done in a while.
  • Hot plugging aka sleep>power on egpu only works if hybrid sleep is enabled. Looking into resolving this issue as it takes some time to write ram image on the ssd, it's couple of seconds but gets annoying especially when testing setup.
  • Sleep > wake up> Check for hardware changes initializes eGPU. Way faster than waiting for hybrid sleep to kick in.
  • Still wondering why x1 gen 2/usb 3.0 combo isn't 500MB/s but only peaks at 402MB/s during gpgpu/cuda-z benchmarks. But hwinfo monitoring overlay reports 5.0GT/s during gameplay, so I would assume that it actually does use full potential of bus.
  • Gamestream works.
  • For some weird reason after i7 upgrade ANSEL in Tekken 7 stopped working, submitted nvidia forum post, waiting for educated response from a moderator.

 

 Workarounds

  • Newest driver error 43 > Geforce 368.81 drivers IgorGIV workaround
  • Gamestream disappears > GFE 2.11.4 > look up gamestream mobile kepler xda
  • Shadowplay disappears > GFE 2.11.4 > shortcut with -shadowplay parameter
  • Nvidia control panel lacks settings > Nvidia inspector (not global) > custom game profile
  • D3d error > Don’t shutdown/restart NV Container service

Acknowledgements

 

Thanks to nando4, tauio111, IgorGIV, HUSABER from insanelymac forum, AvoxurTech youtube and Cyberdyne from guru3d forum.

 


Initial testing with older Nvidia 9600GT graphics card

 

Device manager GPU-Z 9600GT

 

Benchmarks (CUDA-Z)

9600GT eGPU @x1 2.0 (mPCIe2) GT740M dGPU @x8 2.0

 

Comments

 

  • 9600GT: Out of all steam dx9 games I have installed is Skyrim. Which worked great and was doing 25-50 fps with mid settings with 4xaa @ 1080p.
  • I wish I could test Overwatch with this card but since it requires dx10.1 and card only supports up to 10.0 feature level it's no go, too bad as it only uses about 400MB of VRAM on low detail.

2012 15" Lenovo ThinkPad Edge E531 GT740M + [email protected] (PCE164P-N03) + Win10


Shahryar Ghayour, T430up, 3RYL and 2 people liked
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nando4
(@nando4)
Noble Member Admin
Joined: 3 years ago
 

inxftw, you are the first to implement this huge bang-per-buck eGPU using a US$7 PCE164P-N03 mPCIe eGPU adapter. Great stuff 🙂

eGPU Setup 1.35    •    eGPU Port Bandwidth Reference Table

15" Dell Precision 7510 (Q M1000M) (6th,4C,H) + GTX 1080 Ti @ 32Gbps-M2 (ADT-Link R43SG) + macOS 10.13.6 & Win10


inxftw liked
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Victor Servin
(@victor_servin)
New Member
Joined: 2 years ago
 

inxftw How it perform in games?, i have the previous model E530 almost same specs but with the i5 and i wanted try this adapter, I just ordered 🙂 for know i was checking the hotplug capabilities  (error 12), but i can't find the part in the hwinfo software,  besides the mpcie port you are using i'm using it for the mSata 120 SSD as primary disk.  

https://ibb.co/hyd64Q                            

In other hand your solution rise me some questions regarding the mpcie part, why not to use directly a tb3 like this (adapter) + current solutions like Akitio,  i do have in mind the data transfer speeds and tb3 full capabilities won't be the same but it will be an improvement, does any body have try this? 

laptop Original specs

Lenovo e530 edge(w/o dgpu)

bios:  H0ET95WW 2.55, but i'm not able to change some parameters in there even if i type the sup password  .

Mobo: w/o dgpu, order the 1gb gt610 ddr3 nvidia  variant 

core i3 2350m, upgrade it to core i5 3320m

Ram: 4gb samsung, upgrade to 8gb (have someone tried to use 16gb?)          

hdd 320wd + 120gb mSata SSD

Screen: 1366*768 panel, upgrade to FHD glossy in progress

Wifi: mpcie realtek 1x1 wifi, just order the 7260 AC+bt

eGpu: in mail            

I don't want to replace this machine just yet 🙂 and i like the project 

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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inxftw
(@inxftw)
Eminent Member
Joined: 2 years ago
 

Click on Pci Express Port 2 to see more info.

Played Tomb Raider 2013 on max settings. Ran very well. Tekken 7 maxed too, both stable 60.

On that $56 adapter, well you could try it. Don't see any reason why it shouldn't work, you know the drill, it's your money.

And I appreciate you liking the project.

Cheers.

2012 15" Lenovo ThinkPad Edge E531 GT740M + [email protected] (PCE164P-N03) + Win10


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inxftw
(@inxftw)
Eminent Member
Joined: 2 years ago
 

I don't think I can edit OP anymore. So here goes another update.

I wanted to take it a step further and hardcode everything into uefi.

I bought a CH341A usb programmer from ali for  $2.60  with a clip for another couple of dollars  and dumped both spi chips 8MB(boot sequence, kernel and stuff) and 4MB(BIOS configuration, menus). The main objective here is to remove Lenovo whitelist  while making most out of the CH341A programmer along the way.

 

     CH341A black edition

    Todo list:
  1. Disable Intel management engine  from 8MB image.
  2. Merge modified 36bit DSDT with BIOS (4MB) using PhoenixTool.  Laptop doesn't need dsdt override, just enable switchable gfx and disable dgpu in Device Manager.
  3. Remove wlan whitelist (4MB image).
  4. Toggle advanced menu in BIOS(HPET, ASPM, etc., 4MB image). 

I think within a week I'll manage to finish this project. And ofcourse will report back with anything that comes out of it.

Update:

Thanks to dudu (pythonic pythonic) and bios-mods forum I was able to flash the 4MB image and get advanced menu and other goodies.  Also the modified 8MB image worked too. No backdoor for you shintel.

After going back into bios and getting switchable gfx enabled laptop posts with egpu powered on. Even control panel is now fully functional.

   DSR and custom resolution function as intended. No CRU.

   No need of individual fast sync setup. Global it is.

Gamestream and other GFE features function with latest drivers 388.x 390.77. Just make sure you aren't blocking services.gfe.nvidia.com or gfe.nvidia.com.
It was all possible before with ghetto workarounds, but finally it's good to see NoVideo drivers fully operational.

Cheers.

Update: Also a thing to note. That if HD3000 posted and I hotplugged 1060, gtx card would refuse to work with ANSEL and some other features were broken as well. Now that I post with 1060 with sandy bridge i7 it just works.

2012 15" Lenovo ThinkPad Edge E531 GT740M + [email protected] (PCE164P-N03) + Win10


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Victor Servin
(@victor_servin)
New Member
Joined: 2 years ago
 

Hello inxftw

I also have the CH341A i used to remove the whitelist and toggle the advanced menu. 

I do have one question regarding the adapter,  how do i get the laptop recognize it?

when i plugged in and turn on the laptop it does nothing, not even appear in device manager or bios. 

vik

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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inxftw
(@inxftw)
Eminent Member
Joined: 2 years ago
 

Hi Vik.

Sorry, can you specify which adapter?

Mine just powers graphics card and doesn't act as a device on it's own. Sort of an extension with external power as laptop only supplies 20w to the mPCIe slot IIRC.

2012 15" Lenovo ThinkPad Edge E531 GT740M + [email protected] (PCE164P-N03) + Win10


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Victor Servin
(@victor_servin)
New Member
Joined: 2 years ago
 

I'm sorry, didn't specify which adapter, i ment the mPCIE -USB3-X16 graphics adapter, when i plugged in and boot, the laptop does nothing,  the graphics card is on and running, but  I can't get it to work

 

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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inxftw
(@inxftw)
Eminent Member
Joined: 2 years ago
 

That happened when I taped pin 22. Since my bios tolud is crap, I tried to fool hardware to boot with egpu, still was no go as I just acquired your issue there.

Does laptop post at all?

Make sure to do hotplug correctly. Try using hybrid sleep and then refresh hardware. If that doesn't help, I can suggest going into mpcie troubleshooting section. Maybe it has something to do with PSU, are you sure there's enough power for your graphics card?

 

2012 15" Lenovo ThinkPad Edge E531 GT740M + [email protected] (PCE164P-N03) + Win10


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(@marcelo_henrique_manzo)
New Member
Joined: 2 years ago
 

This is awesome!

Got very excited by this mod, I bought all the parts and I will give a try in my Lenovo E530, I will probably need some help with the BIOS to remove the whilelist and other goodies, hopefully @inxftw can give a hand.

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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inxftw
(@inxftw)
Eminent Member
Joined: 2 years ago
 

Theck out mydigitallife or bios-mods forums. They have threads for bios requests.
Good luck with the thing. Don't forge that if you want to cold boot you have to have dGPU enabled in the bios.

Cheers.

2012 15" Lenovo ThinkPad Edge E531 GT740M + [email protected] (PCE164P-N03) + Win10


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skynoname
(@theodelez)
New Member
Joined: 2 years ago
 

I wonder will it work with this version or with just the mini end cable, because there are lots of usb 3.0 male to male sold in my country than the mini end to male usb 3.0 cable.

Dell Vostro 1450 i3-2330M WIN 10 HD 5570 PE164C-NO3


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inxftw
(@inxftw)
Eminent Member
Joined: 2 years ago
 

I think that it doesn't matter as long as it fits port on your laptop. This is regular x1, right? For laptops you need mini-pci to mini usb.
I'm pretty sure it's just an adapter in the end. Unlike thunderbolt docks which are actually separate devices not just a passthrough.
tl;dr get a mini version like the one linked up in the OP.

2012 15" Lenovo ThinkPad Edge E531 GT740M + [email protected] (PCE164P-N03) + Win10


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joevt
(@joevt)
Prominent Member
Joined: 2 years ago
 
Posted by: inxftw

Still wondering why x1 gen 2/usb 3.0 combo isn't 500MB/s but only peaks at 402MB/s during gpgpu/cuda-z benchmarks. But hwinfo monitoring overlay reports 5.0GT/s during gameplay, so I would assume that it actually does use full potential of bus.

500 MB/s is the theoretical maximum which does not include:

  • Transaction Layer Packet Overhead
  • Traffic Overhead
  • Link Protocol Overhead
  • Flow Control Protocol Overhead

The overhead varies depending on system parameters:

  • Maximum Payload Size
  • Maximum Read Request Size
  • Read Completion Boundary
  • Posted and Non-Posted Transactions

Reference:  https://www.xilinx.com/support/documentation/white_papers/wp350.pdf

There is also the efficiency of the gpgpu/cuda-z benchmarks to consider. How fast does it repeat each read/write? The benchmarks don't show any PCIe errors that might occur which would require a retransmission of a packet. Is the error rate using a USB cable higher than normal?

Mac mini (2018), Mac Pro (Early 2008), MacBook Pro (Retina, 15-inch, Mid 2015), GA-Z170X-Gaming 7, Sapphire Pulse Radeon RX 580 8GB GDDR5, Sonnet Echo Express III-D, Trebleet Thunderbolt 3 to NVMe M.2 case


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inxftw
(@inxftw)
Eminent Member
Joined: 2 years ago
 

That was very informative, thanks!
I have no idea about error rate.

2012 15" Lenovo ThinkPad Edge E531 GT740M + [email protected] (PCE164P-N03) + Win10


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mrmugy
(@mrmugy)
New Member
Joined: 10 months ago
 

I have a late 2014 MBP and I was wondering how I can get around the mPCIe to USB that you have set up in the back of your laptop. I have Thunderbolt 2 ports, is there a way to use this with a workaround? If not what can I do, I purchased the $7 extender and I have a PSU/GTX 1060 but I'm not sure what else to do. Thanks!

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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eanteple
(@eanteple)
New Member
Joined: 10 months ago
 

is it working on internal screen ? I mean , does it work on laptop LCD ?

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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joevt
(@joevt)
Prominent Member
Joined: 2 years ago
 
Posted by: mrmugy

I have a late 2014 MBP and I was wondering how I can get around the mPCIe to USB that you have set up in the back of your laptop. I have Thunderbolt 2 ports, is there a way to use this with a workaround? If not what can I do, I purchased the $7 extender and I have a PSU/GTX 1060 but I'm not sure what else to do. Thanks!

You want to use mPCIe with a MBP? Why not use the Thunderbolt 2 ports which can transmit data faster?

Mac mini (2018), Mac Pro (Early 2008), MacBook Pro (Retina, 15-inch, Mid 2015), GA-Z170X-Gaming 7, Sapphire Pulse Radeon RX 580 8GB GDDR5, Sonnet Echo Express III-D, Trebleet Thunderbolt 3 to NVMe M.2 case


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mrmugy
(@mrmugy)
New Member
Joined: 10 months ago
 

This is basically what I want to know. What can make my GPU work via TB2? I purchased this, although I'm not sure what else I need besides this to connect to TB2.

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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(@shahryar_ghayour)
Active Member
Joined: 2 months ago
 

@inxftw

Thank you so much for your consistency.
I wonder which GPU would be wasting if we use with this bandwidth as you said the bandwidth is limited in mPcie.
gtx 1070 will have the same performance with 1060 because of mPcie potential?!

the second question is the internal lcd.
can I use my laptop’s LCD or should I connect my laptop to an external motitor?!( if so, should I connect hdmi cable directly to egpu or my laptop’s output?!)

I will appreciate of you answer me.

Thinkpad E531
core i7 3632qm
8 GB Ram
Hd 4000
GT 740M


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inxftw
(@inxftw)
Eminent Member
Joined: 2 years ago
 

@shahryar_ghayour

Compute wise it doesn't matter(blender and stuff). If you plan to game then use egpu video output and 1070 is kind of a waste for mpcie connection. For 1070 I'd consider thunderbolt.

2012 15" Lenovo ThinkPad Edge E531 GT740M + [email protected] (PCE164P-N03) + Win10


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(@shahryar_ghayour)
Active Member
Joined: 2 months ago
 

@inxftw

Thunderbolt on e531?!

how?!
is it possible to use 1070 on e531?! If so, then how should I try thunderbolt approach?!
 

Is it nessesery to use 400 wat psu for 1060?! Cause gtx 1060 uses 300 wat on load.

buying exp gdc is waste of money If I can succeed by riser. Right?! 

Thinkpad E531
core i7 3632qm
8 GB Ram
Hd 4000
GT 740M


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inxftw
(@inxftw)
Eminent Member
Joined: 2 years ago
 

@shahryar_ghayour

IIRC exp does psu powerup on it's own like a motherboard. Depends if you want to flip a switch everytime you boot up a laptop. If you're limited with mpcie then 1060 tops out it's gaming performance IMO. But only if you have a processor to back it up. If you had thunderbold compatible laptop, 1070 would be better ofc. Wattage wise you'd never want to run a psu at 100%. Try looking up your gpu power consumption under load. And add at least 10-20%?

2012 15" Lenovo ThinkPad Edge E531 GT740M + [email protected] (PCE164P-N03) + Win10


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(@shahryar_ghayour)
Active Member
Joined: 2 months ago
 

@inxftw

Thank you.

should I follow MBR windows approach or UEFI?! I tried EUFI and ran into problem, my boot stuck on loading and had to reinstall windows.

The second thing is I used gtx 970 with 550wat power and used UDD to uninstall gt740m gpu, then disabled AMD HD4000 gpu in control panel. After installing latest driver of gtx 970, I ran the “error 43 fixer.exe” on the website and it says error 12 and 43.

what comes to my mind is

1- white bios still is the problem (the thinkpad EUFI premade file I downloaded is not compatible)

2- hot plug of gpu is not recognized by pc.

 

would you please record a video of doing EUFI approach cause I don’t have money to buy MBR app that is linked.

 

thank you

Thinkpad E531
core i7 3632qm
8 GB Ram
Hd 4000
GT 740M


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inxftw
(@inxftw)
Eminent Member
Joined: 2 years ago
 

@shahryar_ghayour

Now it's trial and error. I can't give you advice on your config. Try looking into my troubleshooting section or someone's who did raiser setup.

Cheers.

2012 15" Lenovo ThinkPad Edge E531 GT740M + [email protected] (PCE164P-N03) + Win10


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(@shahryar_ghayour)
Active Member
Joined: 2 months ago
 

@inxftw

I get this error message:
dsdt-modified.asl:

1844: Return(AR00())
^***
dsdt-modified.asl(1844): error: AR00 is not a method
How to fix it?

this is dsl-modified:

https://drive.google.com/file/d/1nBnMLdKh2EeX-2IjQOB84GkyolK5uRRH/view?usp=sharing

please help me. Thank you

Btw, you uploaded intel approach .dsl which you mentioned is for devices except lenovo.

since, E531 is 2nd to 4th gen of intel then please upload microsoft approach. thank you

 

Is your uploaded file enough to go to step 2 without creating my own .dsl?

if so, then in UEFI approach how can I reboot via clover?

 

This post was modified 2 months ago

Thinkpad E531
core i7 3632qm
8 GB Ram
Hd 4000
GT 740M


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(@shahryar_ghayour)
Active Member
Joined: 2 months ago
 

when i download clover and extract as you mentioned ACPI folder is not exist at all so I can not run the command and move .aml file to that folder

should I make ACPI and ACPI/WINDOWS folder? if so, what other items should I put in ACPI and WINDOWS folder?

please tell me if you know

Thank you

This post was modified 2 months ago

Thinkpad E531
core i7 3632qm
8 GB Ram
Hd 4000
GT 740M


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inxftw
(@inxftw)
Eminent Member
Joined: 2 years ago
 

@shahryar_ghayour

 

The config file is different for every model.

I did this 2 years ago. And I don't have that laptop anymore. Not a programmer but from what I can tell it's a syntax error. Try cleaning up that.

2012 15" Lenovo ThinkPad Edge E531 GT740M + [email protected] (PCE164P-N03) + Win10


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(@shahryar_ghayour)
Active Member
Joined: 2 months ago
 

@inxftw

Thank you.

finally I could succeed and large memory appeared.!!!! Great

now I have 2 more questions.

1- Laptop has m.2 Mkey, so are we able to find adaptor  for M key female  to USB male and try with that port?! I think m.2 port has higher bandwidth and since you mentioned pcie port has limitation, I think that port can be useful and gtx 1070 or 1080 might fit that port.

 

2- is there a way to not unplugging usb from riser when turning laptop on?!

because when laptop is connected to riser and I turn it on, black screen happens and even do not go to bios setting unless I unplug riser gpu and let windows boot up.

 

Thank you.

Thinkpad E531
core i7 3632qm
8 GB Ram
Hd 4000
GT 740M


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inxftw
(@inxftw)
Eminent Member
Joined: 2 years ago
 

@shahryar_ghayour

IIRC e531 has a whitelist of devices. So it might be rejecting gpu.

 

Posted by: @inxftw

Sleep > wake up> Check for hardware changes initializes eGPU.

You want to mod bios or ask someone to do it. Bios-mods had a section for requests.

2012 15" Lenovo ThinkPad Edge E531 GT740M + [email protected] (PCE164P-N03) + Win10


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(@shahryar_ghayour)
Active Member
Joined: 2 months ago
 

@inxftw

Thank you for all of your help.

1-the only thing remains is integrated GPU which I chose over the switchable graphic in bios settings and when I enter windows through clover and run steam BSOD happens. I figured it is because I changed that to switchable option. By changing to the integrated option I am able to run windows via clover again.

can you please tell me what to do?

2- My FPS is always 20 to 25. I even tried the lowest setting in both GTA V and AC ODDYSEY but each game is the same. What should I do????!!! 

 

And one last thing is that since it capped at 400mb/s in mpcie port, am I able to use M.2 port instead?

M key to female USB connector can help? because I think that port has a higher Bandwidth.

This post was modified 1 month ago

Thinkpad E531
core i7 3632qm
8 GB Ram
Hd 4000
GT 740M


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inxftw
(@inxftw)
Eminent Member
Joined: 2 years ago
 
Posted by: @shahryar_ghayour

@inxftw

Thank you for all of your help.

1-the only thing remains is integrated GPU which I chose over the switchable graphic in bios settings and when I enter windows through clover and run steam BSOD happens. I figured it is because I changed that to switchable option. By changing to the integrated option I am able to run windows via clover again.

can you please tell me what to do?

2- My FPS is always 20 to 25. I even tried the lowest setting in both GTA V and AC ODDYSEY but each game is the same. What should I do????!!! 

 

And one last thing is that since it capped at 400mb/s in mpcie port, am I able to use M.2 port instead?

M key to female USB connector can help? because I think that port has a higher Bandwidth.

Are you sure egpu is being utilized? Are you running it though dp/hdmi off of your egpu?

2012 15" Lenovo ThinkPad Edge E531 GT740M + [email protected] (PCE164P-N03) + Win10


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(@shahryar_ghayour)
Active Member
Joined: 2 months ago
 

@inxftw

I get +45 fps in battlefield v on ultra of course with some lag sometimes which is normal.

but I do not know why pubg runs only on 25 fps regardless of configurations in setting.

what if I get gtx 1080?! Is the bandwidth enough for running that on 60fps ultra?! I don’t need more fps because I use external display and I know more fps needs more bandwidth.

what I am saying is 25 fps on lowest setting might be due to gtx 1060 weakness ,not bandwidth. 

 

Thinkpad E531
core i7 3632qm
8 GB Ram
Hd 4000
GT 740M


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inxftw
(@inxftw)
Eminent Member
Joined: 2 years ago
 

@shahryar_ghayour

It could be a lot of things. First, you're taking a ~20% performance hit by not using a direct x8 connection from gpu to cpu. Also pubg works better with ddr4. Maybe 3000-3500 mhz range. Also that processor is a bit outdated. Before judging gpu I'd benchmark everything.

Try recording cpu and pci-e bus load graphs with fps metric while playing pubg.

2012 15" Lenovo ThinkPad Edge E531 GT740M + [email protected] (PCE164P-N03) + Win10


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