August 11, 2026 7:26 pm  

Hi everyone, I'm trying to set up an eGPU configuration with an ADT-Link R43SG 4.0 but I'm running into persistent detection issues.

Here is my complete hardware setup:

Laptop:  Lenovo ThinkPad E15 Gen 3

Processor (CPU):  AMD Ryzen 5 5500U

Graphics Card (eGPU):  AMD Radeon RX 5700 8GB

Power Supply (PSU):  600W Power Supply

Operating System: Windows 11

Connection Type:  PCIe via M.2 cable

The Issue:

1. I tested the R43SG 4.0 cable in both available M.2 slots on the laptop, and in both cases, the eGPU is not detected.
2. On the R43SG 4.0 board, the 3V and 12V LEDs turn on, but the RST (Reset) and CLK (Clock) LEDs remain unlit.
3. I've noticed a strange behavior: when I have the PCIe cable slightly loosened/partially seated, the GPU and PSU remain powered on (they don't shut down), but the system still fails to handshake or detect the card.
4. Yeah I know that my nvme has a sticker on it, because it's a small version of nvme2 and the other slot couldn't read it (maybe it will help you understand why the PCIE doesn't work)
5. I have already tried to uninstall the drivers using DDU, unfortunately it didn't help

Does anyone know why the RST and CLK signals aren't triggering, or if this behavior points to a specific issue with the PCIe cable/riser? Any advice on how to get this handshake working would be greatly appreciated!

This topic was modified 12 hours ago

(@nando4)

Illustrious Member Admin

Joined: 10 years ago

August 12, 2026 6:03 am  

@somone23960, welcome aboard.

One-gen older system's build below than than yours required a CTRL+ALT+DEL after BIOS post to overcome a M.2 NVMe eGPU detection issue.

2020 14" Lenovo ThinkPad E14 Gen 2 [R4K,6C,U] + RTX 3070 @ 32Gbps-M.2x4 (ADT-Link R43SG-TU) + Linux & Win10

Maybe this procedure is required by your system too?

64Gbps PCIe 4.0 x4 over 80Gbps Intel Thunderbolt 5 / USB4v2 ETA starting 2024   •   eGPU Bandwidth Reference   •    eGPU Setup 1.35
 
2018 15" HP ZBook Studio G5 (Q P1000) [8th,6C,E] + RX 6700 XT @ 32Gbps-M.2x4 (ADT-Link R43SG) + Win10 22H2 // compares M.2 NVMe vs TB3 & RX 6700 XT vs RTX 3070 eGPU, 2.06kg triple-M.2 NVMe slot budget Workstation [info]
 
2018 14" HP EliteBook 840 G5 [8th,4C,U] + RX 6700 XT @ 32Gbps-M.2x4 (ADT-Link R43SG) + Win10 22H2 // compares M.2 NVMe vs TB3 & RX 6700 XT vs RTX 3070 eGPU, 1.48kg dual-M.2 slot budget UltraBook [info]

 
2015 15" Dell Precision 7510 (Q M1000M) [6th,4C,H] + GTX 1080 Ti @ 32Gbps-M.2x4 (ADT-Link R43SG) + Win10 1803 // compares M.2 NVMe vs TB3 eGPU performance inc unoptimized H-CPU BIOS [build link]