2013 15" Lenovo Thinkpad T540P (GT730M) [4th,4C,Q] + RX 590 @ 4Gbps-EC2 (EXP GDC...
 
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2013 15" Lenovo ThinkPad T540P (GT730M) [4th,4C,Q] + RX 590 @ 4Gbps-EC2 (EXP GDC 8.5c) + Win10 [albenex]  

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Pepzki
(@pepzki)
Active Member
Joined: 3 years ago
 

Ha, thinking my hdmi-express card cable might broke. Firstly it disconnected egpu even a smallest touch. Now it wont even start egpu. But got working in my main ssd a while..

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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albenex
(@albenex)
Active Member
Joined: 2 years ago
 

Hey Guys,
sorry not replying sooner but i got notification mail just couple days ago.

@maximiano14: my performance are good with RX580, good as expected (75% of equivalent desktop setup - due to limited bandwidth). Bear in mind that you should use only external desktop. While disablind dgpu, egpu takes care of accelerated graphichs but not everything. Some stuff is still rendered by igpu so i strongly reccomend you to close unwanted windows. 

For example: if i leave Telegram Desktop open and then start a game, FPS drops drastically. Telegram itself is laggy. Pretty strange but probably due to igpu weakness.
Regarding RAM, i don't think this matter. Real use is pretty limited.

Bear in mind that aluminium foil does not improve performances. Just limits EM interferences.
sometimes i need to shut down completely my external TV/Monitor as i get black screen over HDMI connector.. due to some static. this is probably caused by the lack of Ground isolation of EXP GDC.

@Pepzki: strange, i disconnect/reconnect cable every time and is still there. Bought cheap exp gdc from ebay seller.

Regarding PSU, you definitely need an external one to power up either EXP GDC and RX570/580. I tried using ext PSU just for card and another adapter for EXP GDC but i had to limit perforamnce to about 30% as i would get card freezed with BSOD. 

Lenovo Thinkpad t540p 16GB/250GB Intel HD 4600 / Nvidia GT 730m / W10 pro MBR
EXP GDC 8.5 / Corsair VS350 / RX 590 8GB

 
2013 15" Lenovo ThinkPad T540P (GT730M) [4th,4C,Q] + RX 590 @ 4Gbps-EC2 (EXP GDC 8.5c) + Win10 [build link]  


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albenex
(@albenex)
Active Member
Joined: 2 years ago
 

i notice that while graphics performances are good as expected, desktop ones are poor. 
after using commmon programs such as chrome, telegram etc. graphics becomes laggy with very slow animations.

always using ext display attached to dgpu.

is this maybe related to the presence of igpu?

 

Lenovo Thinkpad t540p 16GB/250GB Intel HD 4600 / Nvidia GT 730m / W10 pro MBR
EXP GDC 8.5 / Corsair VS350 / RX 590 8GB

 
2013 15" Lenovo ThinkPad T540P (GT730M) [4th,4C,Q] + RX 590 @ 4Gbps-EC2 (EXP GDC 8.5c) + Win10 [build link]  


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maximiano14
(@maximiano14)
Active Member
Joined: 2 years ago
 

I gave up the project, so no need to bother...I went in a new Rogue-Project to allow the use of RJ47 port for maximum performance and high compatibility with almost all Laptops, I will show results soon.

 

2013 15" Lenovo Thinkpad T540P [4th,4C,Q] + RX 570 @ 10/100/1000 Mbps LAN (RJ45) + Win10 1909 [Maximiano14]


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