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weirdlasagna
(@weirdlasagna)
Active Member
Joined: 4 years ago
 

I'm new here. I'm working on my first eGPU setup with my Lenovo E540. Im using a 1050TI with a PS3-Fatboy PSU inside an old Mac Power G4 Cube. It's been pretty good so far - just waiting for my V8.0 EXP GDC Beast to come in so I can get the build finished up. I'll post progress pics as soon as I'm done. Using this LINK  over at TI for a guide mainly, but also Nando's guides (obviously) have been super helpful. 

I did a USB mod to my Lenovo earlier this year using the disk drive sata connection for power. LINK to my Google Drive images of that.

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

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nando4
(@nando4)
Noble Member Admin
Joined: 4 years ago
 

Hey, welcome aboard. We are starting afresh here so feel free to ask for help and share your complete implementation here once we get there.

eGPU Setup 1.35    •    eGPU Port Bandwidth Reference Table

 
2015 15" Dell Precision 7510 (Q M1000M) [6th,4C,H] + GTX 1080 Ti @32Gbps-M2 (ADT-Link R43SG) + Win10 1803 [build link]  


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Splitframe
(@splitframe)
Eminent Member
Joined: 4 years ago
 

I hope you'll use the M.2. port of the E540 for maximum performance!

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

.

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weirdlasagna
(@weirdlasagna)
Active Member
Joined: 4 years ago
 

I was hoping to but it turns out that's wired for SATA, not PCIE 🙁 at least according to Lenovo tech support (who didn't seem like they knew what they were talking about) 

 

Actually that was before I learned how to check via device manager! I'm gonna confirm that as soon as I get home tonight

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

.

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weirdlasagna
(@weirdlasagna)
Active Member
Joined: 4 years ago
 

OK thanks for the advice, I just checked. Looks like the only SATA connection I have is my HDD and one empty PCIE connection. I assume that's my m.2 slot -- that just goes to show how worthless Lenovo "tech" support is. I had been planning on using my mPCIE slot and putting a SSD in the m.2 to improve load times. How much of an increase in performance should I expect by using m.2 over mPCIE?

 

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

.

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nando4
(@nando4)
Noble Member Admin
Joined: 4 years ago
 

E540 is a 4th gen i-core system. It has Gen2 southbridge PCIe ports. Only increase in performance will come if the M2 slot is configured wider than x1. Eg: x2 2.0, x4 2.0. Also important to check if the M2 slot supports PCIe traffic. You might have a M2 wifi card, so swapping it into that spare M2 slot and checking if it works would answer that.

eGPU Setup 1.35    •    eGPU Port Bandwidth Reference Table

 
2015 15" Dell Precision 7510 (Q M1000M) [6th,4C,H] + GTX 1080 Ti @32Gbps-M2 (ADT-Link R43SG) + Win10 1803 [build link]  


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weirdlasagna
(@weirdlasagna)
Active Member
Joined: 4 years ago
 

I found the schematics, and it seems to say that the m.2 port is SATA 3 and PCIE gen 1 compatible. Unfortunately I don't have any m.2 wifi cards on hand to test it directly. The port is keyed for m.2 B connections. What I gather from this is that the m.2 connection is a PCIe Gen1 x2 and would be faster than my mPCIe. Does that logic follow? And is there any way I can check that using device manager or some other software?

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

.

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nando4
(@nando4)
Noble Member Admin
Joined: 4 years ago
 

The schematic snippet isn't telling us the PCIe link width of that WLAN/mSATA port. You've got Setup 1.31, so boot that and see if any port is being reported as x2 width, ie:  [email protected] or [email protected] It's more likely than not that your M.2 port is also x1 2.0, just like your mPCIe port.

 
Posted by: weirdlasagna

 

I found the schematics, and it seems to say that the m.2 port is SATA 3 and PCIE gen 1 compatible. Unfortunately I don't have any m.2 wifi cards on hand to test it directly. The port is keyed for m.2 B connections. What I gather from this is that the m.2 connection is a PCIe Gen1 x2 and would be faster than my mPCIe. Does that logic follow? And is there any way I can check that using device manager or some other software?

   

eGPU Setup 1.35    •    eGPU Port Bandwidth Reference Table

 
2015 15" Dell Precision 7510 (Q M1000M) [6th,4C,H] + GTX 1080 Ti @32Gbps-M2 (ADT-Link R43SG) + Win10 1803 [build link]  


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weirdlasagna
(@weirdlasagna)
Active Member
Joined: 4 years ago
 

My pcie port is the same speed at the m.2. I got started with the setup and stupidly did the iport save command with my egpu in, not the wifi card. Now the port is disabled and I can't reinable it. I tried "iport restore p5", but it says the port is disabled, so I tried to turn it on with "iport on p5" and it said the port is already on. I tried the same with iport off and it said port is disabled. When I use the command iport on all it hangs up and won't let me exit the command or input another. What should I try next? I have already done the dsdt override and it was successful. 

I tried to enable it using the menu and it gets hung up there also. 

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

.

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nando4
(@nando4)
Noble Member Admin
Joined: 4 years ago
 

Got your facebook message. Yes, rebooting the system will get you going again if system becomes unresponsive from applying various PCIe config space tweaks.

Posted by: weirdlasagna

 

My pcie port is the same speed at the m.2. I got started with the setup and stupidly did the iport save command with my egpu in, not the wifi card. Now the port is disabled and I can't reinable it. I tried "iport restore p5", but it says the port is disabled, so I tried to turn it on with "iport on p5" and it said the port is already on. I tried the same with iport off and it said port is disabled. When I use the command iport on all it hangs up and won't let me exit the command or input another. What should I try next? I have already done the dsdt override and it was successful. 

I tried to enable it using the menu and it gets hung up there also. 

   

eGPU Setup 1.35    •    eGPU Port Bandwidth Reference Table

 
2015 15" Dell Precision 7510 (Q M1000M) [6th,4C,H] + GTX 1080 Ti @32Gbps-M2 (ADT-Link R43SG) + Win10 1803 [build link]  


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