Setup & Software Discussions
2013 15" Lenovo Thinkpad T540P (GT730M) [4th,4C,Q] + RX [email protected] (EXP GDC 8...

2013 15" Lenovo Thinkpad T540P (GT730M) [4th,4C,Q] + RX [email protected] (EXP GDC 8.5c) + Win10 [albenex]  


Active Member
Joined: 1 month ago

System specs: 
-Internal Display: 15" LCD @ 1660p
-CPU: i7-4700QM
-dGPU: Nvidia GT730m
-iGPU: Intel HD 4600
-SSD: Samsung 840 256 gb & Samsung 860 1tb
-OS: Windows 10 pro

eGPU hardware:
-enclosure: EXP GDC 8.5c feat. Express Card adapter - bought on ebay at 30€
-video card: XFX AMD RX590 8GB
-PSU: Corsair VS350
-External monitor: LG 43" 4K TV - [email protected]

Hardware pictures (note: require 5+ posts for "attach files" button to appear. Or can link from say  )

pc psu card


Installation steps 
(ignoring previous tries to get it working, including DSDT hack, not useful, struggling either on Error12 or Error43)
1- re-install W10 using MBR Partition scheme
2- installing DIY Setup 1.35 by nando
3- put "ATX PWR" toggle ON on EXP GDC 8.5 interface
4- mounted card on EXP GDC, attached PSU cables (needed 2molex to 6+2pin adapter, provided with card, and EXP GDC pwr in to half of PSU CPU cable supply)
5- attached HDMI cable from RX590 to TV
(following: steps needed everytime to get it working)
5- powering OFF laptop
6- powering ON PSU, interface will power on, PSU fan will start spinning, video card leds became blue (however fans may not spin)
7- powering ON PC
8- waiting for windows boot menu, selecting DIY Setup then let it run setup configuration
9- attaching express card cable to PC - DIY Setup should recognize card 
10- disable AMD audio interface (in order to reduce use of BUS bandwidht)

Steps needed to be done only once, after DIY Setup will recognize the eGPU - Disabling dGPU:
1- menu-based,
2- P
CI Compaction->ignore->dGPU,
3- PCI Compaction->Run->iGPU+eGPU, 
4- Video cards->dGPU [off],
5- Hit F3 key,
6- Chainloader->test run


Benchmarks (Include a CUDA-Z or AIDA64 bandwidth pic. Optional: Valley, 3dmark, noting if it's on internal/external LCD )

AIDA64 Bench:

aida bench

3dMark score: 3896 overall


GPU-z shows it's running Gen 2 link with x1 PCI-e speed.


This topic was modified 2 weeks ago

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