Question Hooking up my External Graphics card

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BmakGR

Mar 5, 2025
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I have a Mini Bmax 5 Pro with has a Ryzen 7 5825u. CPU and GPU1-
2- Goal : Adding external GPU to pc
3- Parts: GameMax 850w plus Power Supply, pci-e adapter, riser cable

So, (A) I will plug the CPU 8 pin wire from my Power supply to the Graphics card. Now that same wire I just put into the External Graphics card has a split , so I can add that to my PCIE ? ( that wire is a 6 +2 so it can go into the PCIE.

(B) I have now the wire that looks like a HDMI that is plugged into that port on my PCIE and that goes under the cover of my mini PC . I will put that M.2 cord Im assuming its called that looks like a computer chip on the tip. I will insert it starting from the right side and insert it into the " computer board extender" ? I don't know the name, but from what I understand , that is were you put it for ADD ON's? There is a thin foil like wire connected to the bottom of PC were Im going to put in the M.2 wire, it says " Facing Up", and I will start from the right and plug it in. It seems small for this insert, but Im assuming there are different M.2 slots and sizes. So when I put it in, I have to make sure the mini PC does not move cause I don't want the M.2 insert to come out .

(c) Now on my I have the Riser cable that goes from my Graphics card to my PCIE device. * Question is , the 12 pin cable that came with my power supply, Do I still need to connect that 12 pin cable into my PCEI? cause it came with a wire that will turn it into a 8 pin wire which I have a 8 pin Female slot open on the PCIE .


I'm assuming that is it, besides me downloading the program for my graphics card it should be done? Please , anything I said which is not correct, please let me know . I tried to explain myself as detail as possible . If you need any more info of any sort to help me out, please let me know.

Thank you everyone .

*
 
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Welcome to the forums, newcomer!

2- Goal : Adding external GPU to pc
What is the make and model of the external GPU?

3- Parts: GameMax 850w plus Power Supply, pci-e adapter, riser cable

pc power supply 850w | 800W - 850W Computer Power Supply

Discover the GameMax 800W - 850W Computer Power Supply, designed to deliver stable and efficient power for your gaming or PC setup. With 80+ certification, exceptional reliability, and advanced cooling, this power supply is perfect for mid-to-high-end builds requiring consistent performance and...
gamemaxpc.com gamemaxpc.com
Which unit do you have out their portfolio?

For the sake of relevance, I went looking at the NUC;
https://www.bmaxit.com/Maxmini-B5-Pro-pd717978588.html
What cable/port are you referring to? I don't see any provision to add an external GPU. What is the make and model of the riser cable that you speak of?

Since you seem to be a novice at this, it's best that you include images of what you're seeing in hopes that nothing is ruined in the process.
 
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Hello everyone , before I go and pay someone to fix this since its been sitting in the box for a few months now ( I will check the warranty but I think it over).

I have a Gamemax 850 Plus power supply that has never been used. I just wanted to make sure that it works . So I plugged it in and nothing is happening knor any lights going on.
There is a switch in the back to turn it ON/OFF , I have pressed it in both directions and nothing is going on. I don't know if the wires to connect it to the Graphics card or to the PCIE have to be connected in order for it to turn on, which I don't think that has to be the case. If anyone can help me to figure out the issue? I have no electricity issues in my place. Everything works and my power does not go out or glitch. But lets say for example , i have a lot of devices hooked onto the outlet and its running good with no issues, but I know if I put another Mini Doge 3 miner there , then the breaker will pop. If I add a lamp or a couple small things, everything will be fine but another Doge miner will trip the outlet. Could it be that, possibly not getting enough electricity? I have tried to plug in the power supply somewhere else that I don't have my Miners hooked up to, say another outlet that is on a different breaker than the miners, and it still wont go on?? Sorry for the little long explanation, I'm just trying to give you the best details on everything to help you better understand everything.

Thank you again for your time and help.
 
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Lutfij said:
Welcome to the forums, newcomer!

2- Goal : Adding external GPU to pc
What is the make and model of the external GPU?

3- Parts: GameMax 850w plus Power Supply, pci-e adapter, riser cable

pc power supply 850w | 800W - 850W Computer Power Supply

Discover the GameMax 800W - 850W Computer Power Supply, designed to deliver stable and efficient power for your gaming or PC setup. With 80+ certification, exceptional reliability, and advanced cooling, this power supply is perfect for mid-to-high-end builds requiring consistent performance and...
gamemaxpc.com gamemaxpc.com
Which unit do you have out their portfolio?

For the sake of relevance, I went looking at the NUC;
https://www.bmaxit.com/Maxmini-B5-Pro-pd717978588.html
What cable/port are you referring to? I don't see any provision to add an external GPU. What is the make and model of the riser cable that you speak of?

Since you seem to be a novice at this, it's best that you include images of what you're seeing in hopes that nothing is ruined in the process.
Click to expand...
I have a BMAX Pro 5 7835u ( It has gpu and CPU.

So I think I read the same, for this PC, there is no way to add external graphics card , your saying?
 
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The PSU must be connected to something (like a motherboard or PSU tester) to trigger the power on function. If a motherboard, it must be fully connected to it and the motherboard needs to have memory, CPU, and GPU (even if integrated) to boot (indicating the PSU works).

You can also use the paper clip method (just look for a YT video) to check the PSU.

Just plugging in and messing with the switch won't do anything (the switch must be on, by the way to check anything).
 
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I think you are missing the main question. What are you trying to plug in to what? What GPU are you trying to use?

PSU is probably overkill, but also not a brand I would particularly choose.

The key is know how much power this external GPU adapter is intended to use. You mentioned plugging in an 8-pin CPU power cable, which is generally a 336W max connector, while GPUs typically use an 6+2 8-pin connector rated at 150W. If one is to power the adapter, and the other to power the GPU directly, yes, that is likely the correct way. But you can't plug CPU power into consumer GPUs, all 12V, but the wire configuration is different.

If this is an M.2 adapter, your OS is likely installed on an M.2 drive in the system. You could swap over to using a SATA drive, as there appears to be room for one 2.5" drive. But I don't see two M.2 slots, so something will have to change to make this work at all.

I don't think there will be room to reassemble the unit with the M.2 adapter installed, as the cable will have to come out somewhere.
 
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Question is , can I just hook up and plug in threw the C port or do I have to open the mini PC and add it that way? If I have to do that way , can someone explain to me how to do this? I have watched plenty of videos and I have read about it but Im just learning about how to do these things , I don't want to mess this up and burn something up . Also , any feed back on anything I have done wrong or ordered wrong would be helpful. I know this is not the most powerful equipment here but since its my first time , I just wanted to start from the bottom and work my way up. Thank you all for your time.

I have a GMKTec mini PC AMD Ryzen 7 5825u , 850w 80 Pluss Game Max Power Supply , PCIE Graphics Card Adapter, Riser cable, Radeon Rx 7600 Graphics Card , NVMe M.2 PCIE Gen 3x4 2280 ssd.
 
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USB-C?

Still need to know what adapter you are using. Not the type, the exact one, with a link to whatever instructions it came with.

If it has type-C it is likely thunderbolt, and you would need a thunderbolt capable port on the system. I don't believe you have that.

If it has an M.2 adapter, yes, the computer has to come apart to install this, and it probably won't go back together easily. M.2 slots are not rated for very many insertions either, so this isn't something you would want to be constantly disconnecting.

Honestly, what you are doing is well outside what is considered normal. Compatibility is not always easy and problems are likely to be hard to solve, if at all possible.

You might be better off selling that Mini-PC for whatever you can get, and getting some normal PC components to plug that GPU into. You are off to a good start with a power supply and a GPU after all.
 
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Eximo said:
I think you are missing the main question. What are you trying to plug in to what? What GPU are you trying to use?

PSU is probably overkill, but also not a brand I would particularly choose.

The key is know how much power this external GPU adapter is intended to use. You mentioned plugging in an 8-pin CPU power cable, which is generally a 336W max connector, while GPUs typically use an 6+2 8-pin connector rated at 150W. If one is to power the adapter, and the other to power the GPU directly, yes, that is likely the correct way. But you can't plug CPU power into consumer GPUs, all 12V, but the wire configuration is different.

If this is an M.2 adapter, your OS is likely installed on an M.2 drive in the system. You could swap over to using a SATA drive, as there appears to be room for one 2.5" drive. But I don't see two M.2 slots, so something will have to change to make this work at all.

I don't think there will be room to reassemble the unit with the M.2 adapter installed, as the cable will have to come out somewhere.
Click to expand...
Ty for your time and info
 
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Eximo said:
USB-C?

Still need to know what adapter you are using. Not the type, the exact one, with a link to whatever instructions it came with.

If it has type-C it is likely thunderbolt, and you would need a thunderbolt capable port on the system. I don't believe you have that.

If it has an M.2 adapter, yes, the computer has to come apart to install this, and it probably won't go back together easily. M.2 slots are not rated for very many insertions either, so this isn't something you would want to be constantly disconnecting.

Honestly, what you are doing is well outside what is considered normal. Compatibility is not always easy and problems are likely to be hard to solve, if at all possible.

You might be better off selling that Mini-PC for whatever you can get, and getting some normal PC components to plug that GPU into. You are off to a good start with a power supply and a GPU after all.
Click to expand...
I found out that it cant be done with that Bmax Pro. But I have a GMKTec Mini AMD Ryzen 7 7825 u.
It can be done with that , correct. Now for the Gamemax power supply 850 , PCEI adapter, and everything else, I could do it on there? Let me know if you can help and I will send you all the parts I have to help me, cause I swear I read this GMKTec can do it. Thank you.
 
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