[SOLVED] Accidentally plugged the CPU power cable into my GPU, am I screwed?

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Penrose

Commendable
May 26, 2019
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Hi all! So recently I bought built a new PC:

MOBO: Asus ROG Strix B550-I
GPU: RTX3060,
CPU: R5 3600XT
RAM: 3600MHz(2x8)
SSD: Samsung 970 Evo Plus NVMe 500GB
and the case I bought came with a non-modular PSU pre installed in it.

The build took a considerably long time as it was an ITX build and having a non modular power supply didn't help with cable management either. I was pretty tired as I finished around midnight, and ended up making a grave mistake. All the cables were plugged in and the only thing left to do was plug in the PCIe cables (my GPU needs 8-pin and 6-pin).

So I plugged in a 6-pin PCIe cable into the 6-pin slot of my GPU but for some reason, I went and connected the 8-pin CPU power cable into the 8-pin connector on my graphics card, as it looked very similar. I also understand that the shapes of the pins are different, but it managed to fit without a concerning amount of force put into it. Keep in mind, I did not plug anything into the CPU's power port, so the CPU was not being powered by anything.

I pressed the power button and nothing happened, there were no fans spinning, nothing at all. Also to add, there were no crackling noises or smoke at all. The only thing I could notice was that when I connected the power cable into my PC, the motherboard's lights came on, but that was it. The PC did not turn on at all. Soon after realising my great mistake, I immediately unplugged the CPU cable from my GPU and plugged it in the motherboard, then plugged the correct 8-pin cable into my GPU like I should have done.
After doing so, the PC turned on fine and there didn't seem to be any problems.

From what I hear, my mistake would have fried either the power supply or the GPU, but I'm not entirely knowledgeable in what would have happened. As I am writing this post, the PC is working fine and there doesn't seem to be any problems at all. I read a post about this and someone made the same mistake as me, however for some reason the 6-pin PCIE cable prevented any damage being caused to the components (not sure how, maybe someone can help me out here).

So to sum it all up, I am still very paranoid that I may have still damaged the components of my PC and that they won't perform as fast as they should. Should I be worrying about this or is my PC fine?

Any help or reassurance would be greatly appreciated. Thank you!
 
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So to sum it all up, I am still very paranoid that I may have still damaged the components of my PC and that they won't perform as fast as they should. Should I be worrying about this or is my PC fine?
Any decent PSU would have detected short and prevented system from powering up.
BTW - what model PSU are you using?

Anyway ..
If your system is working, then it's all good.
If it was not good, your graphics card would have been fried for sure.
Since case's included PSU's are typically not very good quality I'm going to go with YES.
Sorry.

Which case did you go with?

I went with the InWin A1 Plus case, and to add (if you read what I wrote), the PC booted fine and as I wrote this post, there were no apparent problems.
 
So to sum it all up, I am still very paranoid that I may have still damaged the components of my PC and that they won't perform as fast as they should. Should I be worrying about this or is my PC fine?
Any decent PSU would have detected short and prevented system from powering up.
BTW - what model PSU are you using?

Anyway ..
If your system is working, then it's all good.
If it was not good, your graphics card would have been fried for sure.
 
Solution
Any decent PSU would have detected short and prevented system from powering up.
BTW - what model PSU are you using?

Anyway ..
If your system is working, then it's all good.
If it was not good, your graphics card would have been fried for sure.

The PSU came included with the InWin A1 Plus case, not exactly sure what the model of the PSU is.
So there should be nothing wrong with my PC then?
 
This one? Seems ok.

b3466844acae25ed2f51f3d689b848a5.jpg
 
I was thinking the same thing, there is NO WAY you could have plugged your motherboard power into your GPU, it's basically built like legos at the connection, it's impossible. If somehow you mangled and jammed the plastic till it fit (still basically impossible) you should really NEVER put together any custom pc designs, not for now. Practice on older stuff and with better light, temperament and go slowly.
 
I was thinking the same thing, there is NO WAY you could have plugged your motherboard power into your GPU, it's basically built like legos at the connection, it's impossible. If somehow you mangled and jammed the plastic till it fit (still basically impossible) you should really NEVER put together any custom pc designs, not for now. Practice on older stuff and with better light, temperament and go slowly.

A bit harsh, but the connector did fit without requiring a lot of force (and I would realise something was wrong if it didn't fit properly), perhaps the cable was not very good quality hence allowing it to still fit. The PC is working fine now so I got off lucky.
 
A bit harsh, but the connector did fit without requiring a lot of force (and I would realise something was wrong if it didn't fit properly), perhaps the cable was not very good quality hence allowing it to still fit. The PC is working fine now so I got off lucky.
Good for you! Maybe the CPU and GPU power connector in the power supply are the same connector layouts, but they work differently. You should be fine though. That comment before is harsh I agree btw.
 
I just did the same thing and my motherboard turned on for a few minutes but the shut down. Just found that the psu doesnt work anymore.
Anyone know if a can expect the gpu to still work?
 
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