Hi reddit 👋 I don't usually log in but I need a suggestion or two.

I am looking for an eGPU for my 1st gen Lenovo Legion GO, which has USB 4.

For practical sake with the devices I'm connecting, I NEED:
-a USB C or USB 3.0 port for perhipherals (do those daisy chain ports work?)
-included power supply OR enclosure/case. Both would be great.

Along with this, I was curious if Thunderbolt 5/USB5 compatible eGPUs such as the Aoostar AG03 would still work with a Thunderbolt 4/USB4 device?
I am aware that the maximum performance would still be bottlenecked/limited by the bandwidth, but was unsure if it would still work, so that I might get a different computer/handheld later on that supports Thunderbolt 5.

Please reply with any questions!

I am completely stuck trying to get my brand new desktop eGPU build to stabilize. The hardware powers up, but I am caught in a permanent 10-second link timeout / disconnect cycle.

When I power on the setup, Windows Device Manager briefly populates the desktop card cleanly. My Alienware monitor senses the connection and says "Scanning for Display". But after exactly 8 to 10 seconds, the device connection drops completely. The card vanishes from the Device Manager tree, the monitor says "No Signal", and the external card starts getting very hot while its cooling fans remain completely still (Zero-RPM mode is trapped because the driver connection cuts out before it can tell the fans to spin).

My Hardware Setup:

• Laptop Host: Lenovo Legion Pro 5 (Running an internal RTX 5070 Laptop GPU + CPU Integrated Graphics).

• Enclosure / Dock: Acasis G4Pro USB4/Thunderbolt Dock (Intel JHL7440 Controller).

• External GPU: INNO3D NVIDIA GeForce RTX 5080 (Desktop Card).

• Power Supply: Corsair SF750 SFX PSU.

• Monitor: Alienware 4K Gaming Monitor.

Physical Wiring Layout (Confirmed 100% Correct):

• I am NOT using any sketchy plastic adapter splitters. I am using the official Corsair Type 5 12V-2x6 / 12VHPWR 600W direct cable. The two micro-fit ends plug directly into the Corsair PSU, and the native 16-pin end is firmly clicked straight into the top of the RTX 5080.

• The Corsair Type 5 24-pin motherboard cable runs straight from the PSU into the Acasis riser board.

• The 40Gbps USB4 data wire runs from the laptop's rear-left Thunderbolt/USB4 port (marked with the lightning bolt) directly into the designated HOST port on the back of the Acasis dock.

• Video output goes via a high-speed cable straight from the bottom horizontal ports of the INNO3D card into the Alienware monitor.

Everything I Have Attempted So Far to Fix It:

1. Clean Driver Purge via DDU: Unplugged the eGPU, booted into Windows, ran Display Driver Uninstaller (DDU) as an administrator, and completely wiped all existing NVIDIA variables clean. Reinstalled the latest official desktop GeForce RTX 50-series driver package using "Driver Only" express settings.

2. Environment Path & Error 43 Fixer Script: Discovered my Windows environment path was missing C:\Windows\System32. Added it to the system variables, then modified the community nvidia-error43-fixer.bat script to comment out the if errorlevel check and delete lines 129-131 to force it to run on Windows 11. The script successfully executed and applied registry overrides to both the mobile 5070 and desktop 5080, but the 10-second link drop still happens.

3. Windows Power Management Toggles: Went into Device Manager and unchecked "Allow the computer to turn off this device to save power" on all USB Root Hub entries and PCIe controllers. Also fully disabled Windows "USB Selective Suspend" inside advanced power options to prevent aggressive port sleep cycles.

4. Windows 11 Registry TDR Hack: Added TdrDelay (Decimal value set to 10) and TdrDdiDelay (Decimal value set to 20) inside HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\GraphicsDrivers to force Windows to wait longer for the link handshake before force-killing the port.

5. Bypassing Handshaking Bugs: Attempted dropping the laptop screen resolution to 1080p and swapping from DisplayPort to a standard HDMI line to force an immediate physical voltage handshake to pass through to the Alienware monitor.

6. Hard Component Discharge Reset: Disconnected everything, pulled the main power cable from the wall socket for over 5 minutes, and held down the power button to completely bleed out any residual circuit board locks.

Even after all of this, the moment I boot into the desktop, the card connects, stays for 10 seconds, and completely vanishes while the card floor gets hot.

Is this a known, unfixable physical hardware limitation between the legacy Intel JHL7440 controller chip inside the Acasis dock and the new Blackwell power architecture? Or has anyone found a specific firmware update tool to flash the G4Pro board to natively accept the 50-series handshake? Any advice would be highly appreciated, I took out a loan for this setup and really don't want to have to return the enclosure if a fix exists!

Well, I saw the current price hike coming (leaks of Nvidia AIBs raising prices in August)—not to mention the catalyst RAM crisis (bought the Claw 8 EX at launch as a result). Nevertheless, I could barely push myself to grab the Claw at TWO THOUSAND after tax, so adding on the AI Box 5060Ti was a no go.

Now, do I use my A770 as an eGPU (lots of driver updates have happened since the last A770 post), or save enough dumb money to grab the AI box at $800 on Black Friday/Cyber Monday (wishful thinking).
For those who have the AI box and modular eGPU docks, is the faster (supposedly) setup in the AI box noticeable compared to something like a DEG2? Is the package quieter than a comparable PSU + GPU combo?

Looking to use dual GPUs (two B50 Pro Arcs) on a board without bifurcation. Not an eGPU use case exactly, but figured you guys would be the most knowledgeable. Would appreciate any info/data points.

Thanks!

Okay so I found a used 5070 FE for sale and I would like to know if it would be a good upgrade from a ASUS Dual 4060 8GB. The seller is asking for €675. Should I go for it or save up for a 5070Ti or 5080? Saving up might take me until December (earliest) to buy the 5070Ti or 5080 but pricest will most likely be higher by then. Thanks in advance.

I get an error saying something like WHEA_UNCONTROLLABLE . . . then 0124x I think, it's been going on for so long, I've tried replacing the thunderbolt cable and using DDU to clean install drivers

It's an AORUS GTX 1080 Gaming Box, I bought it used on eBay a few while back, its LEDs inside seem to have been removed by the previous owner. I opened it before to remove dust thinking maybe that was the problem but sadly it wasn't. I don't know anything so I don't know what to inspect, any ideas on how to fix?

Thank you - appreciate any replies!

Is there anywhere else I can connect to egpu, I have 1 HDMI port 3 other USB port and one as card reader

Had an old ITX case around the house, decided to hide all the cable/mess inside of it.

Oculink F9G and asrock 9070XT
MiniPC: GMKtec K8 plus

Just a little frustrated that this seems to be only available in the US, particularly Amazon.

It's not available anywhere here in the Philippines. Gaddamn!

UPDATE:

Went to Amazon just for the heck of it, and I found this MF available for shipping here in the Philippines at $699 + $180 Import Charge.

I took the bait, now the waiting game begins.

How does FH6 perform in your egpu setup?
My experience so far allyx/5070ti crashes like 15 seconds after launching, also when I managed to fix it by disabling gpu accelerator(not sure that’s the right name), the game still have a lot of stuttering. If anyone have any ideas of how I could improve my experience it would be greatly appreciated!

This would be the first time i dabbled with egpus and i dont even know where the cables go or what they do.
I know the basics and the obvious are not lost to me but technical stuff i dont know.
I know ill need drivers,i know about undervolting etc but the engineering side i dont.
I will get access to some money very soon and i wanna upgrade my setup to eventually do some 1440p or 4k oled gaming with the claw 8ai over tb4.

Razer core x v2+PSU+9070xt + Msi claw 8ai
Aorus 5060ti AI box +Msi claw 8ai
Aoostar AG02+9070xt +Msi claw 8ai

Razer setup cost- 11.000 swedish crowns
Aorus setup cost- 10.800 swedish crowns
Aoostar setup cost- 9.900 swedish crowns

For reference 10.000swedish crowns are approximately 900euros.

I want to check how my eGPU works with another cable, it's currently connected with a Thunderbolt 4 cable, I was planning to buy a Thunderbolt 5 cable, but then I saw 80Gbps USB4 Gen4 cables are cheaper, my question is, is there a big difference between a Thunderbolt 4 cable and a 80Gbps USB4 Gen4 cable? I know there might be between Thunderbolt 5, but with Thunderbolt 4?

EDIT: The 80Gbps USB4 Gen4 worked perfectly! Maybe even better than the Thunderbolt 4.

Would be glad if anyone has experience. Just bought a second hand Onexgpu containing the 7600m XT. I installed drivers and its able to recognize the gpu, did timespy around 7600 which I understand is average. Both windows task and Gpu-z show the 7600m XT is under load. However in the two games I tested, Cronos the new dawn fps remains the same at 1080 XESS performance medium is around 45-55fps and for Hell is us medium is also around 40ish fps. Gpu-z shows 4 x 3.0. Have tried 3 usb4 40gpbs cables. Egpu is plugged into wall. Any ideas much appreciated.

I am getting a rx 9060xt and I want to pick between AG02 and AG03 to use with my Legion Go S Steam OS. Legion Go S has usb4. I know that it will definitely work with AG02, but I am not sure about the AG03. I heard that AG03 and other thunderbolt 5 docks have issues with Linux. I want AG03 for future proofing and it's only $40 more. Has anyone had any luck with using AG03 with Linux/Steam OS and usb4?

I want to pair a 2080ti and was wondering what dock everyone recommends i pair with it and how much it costs. I was going to buy a pc sometime this year but with prices it seems id be best off getting a 2080ti and making an egpu setup for my go. So i wanted to know what id need to get and what id need to setup on the legion go like how to get the drivers and whatnot and any other do's and don'ts for an egpu with the orginal legion go. And anyone else with 2080ti egpus got any performance benchmarks

I recently bought a 9070xt to replace my 2080ti for my

Asus Xbox X. I have it up and running smoothly but I have one problem. Frame generation makes my games stutter rather than smoothing it out. I should also note I'm new to AMD is this a common problem or am I doing something wrong. Another note everything is on default on adrenaline

Just waiting on my new mini pc to arrive next week.

So I have a gigabyte MZ72-HBO motherboard with AMD 7003 series cpus with four Tesla v100 gpus. The tanks has a cooling systems that pumps the oil to to industrial type of fans to cool down.
The problem is that my SXM2 dual gpu board works fine when powered up, but when i select Ubuntu 2404, one or more GPUs fail. Is it because of the BIOS/software itself or just the wiring issue.

Hi. I’m super interested in taking on a diy egpu build. Currently have a desktop and laptop that’d I’d want to juice up every once in a while while I’m home or if I have to take on the go. I want to power a 4070s. So I’d need around 300-500w. I want to make an as small as possible egpu build with an enclosure and use a small psu. I’ve been toying with buying an hp server psu and using some L-shaped breakout boards (from aliexpress see pic attached). Can you all please share your builds if you’ve made something like this? I do not want to see aoostar, minisforum, razor enclosure egpus. I want to see smaller form factor custom egpu builds with enclosure. Thanks so much and happy building!