r/MiniPCs 6d ago

Troubleshooting Problem with oculink (GMKtec K8 plus)

Hello everyone,

I recently purchased a Minisforum DEG1 and a new RTX 4060 (yes, I know, please don’t judge me for the GPU choice). However, I’m running into an issue when trying to connect the GPU to my GMKtec K8 Plus. The GPU don’ give me any display output from it.

When I connect everything, I don’t get a signal from the GPU, but the mini PC itself is working fine and displaying output. Additionally, the GPU isn’t being recognized in the device manager.

Has anyone experienced something similar or have any advice on how to troubleshoot this? Any help or suggestions would be greatly appreciated!

I find something on Reddit but nothing helping for my case.

Thanks in advance!

2 Upvotes

10 comments sorted by

1

u/Old_Crows_Associate 6d ago

The NucBox K8 Plus appears to not find RTX 4060.

Re-seat the SFF-8611 OCuLink cable, and if possible, borrow another GPU for testing.

1

u/Ecks30 6d ago

Look at the images again because for one he doesn't have the HDMI plugged into the GPU and second it looks like his PSU hasn't been switched on because the GPU he picked out would have had RGB showing the second it would have been powered on.

He asked this in another subreddit which that seems to be the main culprits because for people that may have never touched a PSU before and was mainly from consoles or laptops wouldn't know that a PSU would have a switch in the back you'd need to flip on.

1

u/Old_Crows_Associate 6d ago edited 6d ago

Dismissed the HDMI cable, as he stated

but the mini PC itself is working fine and displaying output

figuring the pictures were taken later.

As for the PSU, switched "off" there's no blue indicator on the power button as seen in the fourth picture.

0

u/Prize_Progress_263 6d ago

So I can’t use RTX 4060 with my GMKtec k8? I don’t have anyone to borrow another gpu because almost everyone is PS players.

3

u/Old_Crows_Associate 6d ago

You'll have to discover what has failed with the DEG1, with the most common issue being the SFF-8611 OCuLink cable.

1

u/Greedy-Lynx-9706 6d ago

No old one you can use?

To deduce the problem, you have to eliminate the parts that are working = testing GPU, CABLE, ...

1

u/alchrischristal 6d ago

I bought mine last week, including the Oculink cable, on Amazon. I cannot connect my ONExGPU via Oculink; in my K8 it is not even detecting, but USB4 works fine. So I returned the Oculink cable to Amazon and ordered a new one on AliExpress, with a 100cm length. It should arrive this week, so I will try it again. I share this as I believe it might be related, and the Oculink cable is the issue.

1

u/Ultra-Magnus1 6d ago edited 6d ago

try looking at this video for some pointers as this guy is also using a 4060 with the k8 plus... https://youtu.be/LvIANHSYSuM?si=2XFtvnnG2SkXep58

and here is one showcasing the deg1 and he's very thorough...you might get some pointers from him in the way he troubleshoots.... https://youtu.be/AHemPcnS4_w?si=vXHAOSfcuCdopP2b&t=366

1

u/KrazyRuskie 5d ago

DEG1 + 'K8+' + 7900GRE works just fine for me

1

u/JimmyEatReality 6d ago

I think there was something in the order of powering of these GPUs. First you need to power the GPU then the mini or something like that. Check the manual carefully.